The purpose of this lab is to investigate the effect of temperature on the activity of an enzyme, specifically catalase, which breaks down hydrogen peroxide into water and oxygen gas. The experiment aims to determine the optimum temperature range for catalase activity and to observe the effect of temperature beyond this range.
What procedure did you use to complete the lab?To complete this lab, we first prepared a solution of hydrogen peroxide and collected it in a gas syringe. We then added a small amount of catalase to the hydrogen peroxide solution and placed the syringe in a water bath at a specific temperature. The reaction between the enzyme and the substrate produced oxygen gas, which displaced the water in the syringe. We recorded the volume of oxygen gas produced at different temperatures to investigate the effect of temperature on enzyme activity. The temperature range we tested was from 10°C to 60°C, with increments of 10°C.
What charts, tables, or drawings would clearly show what you have learned in this lab?A line graph with temperature on the x-axis and volume of oxygen gas produced on the y-axis would clearly show the effect of temperature on enzyme activity. The graph should have the following items:
a. Title: Effect of Temperature on Catalase Activity
b. X-axis label: Temperature (°C)
c. Y-axis label: Volume of Oxygen Gas Produced (cm3)
If you could repeat the lab and make it better, what would you do differently and why?If I could repeat this lab, I would increase the number of temperature increments from 10°C to 5°C or even 2°C. This would provide more precise data and allow for a more accurate determination of the optimum temperature range for catalase activity. Additionally, I would use a more sensitive instrument for measuring the volume of oxygen gas produced, such as a gas burette or a digital gas sensor. This would reduce measurement errors and improve the reliability of the results.
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The parasite ____ can be spread in water supplies, water supplies, water parks, and community swimming pools.
Water supplies, water parks, municipal swimming pools, and water supplies are all potential breeding grounds for Cryptosporidium.
What is parasite?
A parasite is an organism that coexists with another creature in order to gain nutrition, grow, or reproduce—often in a way that is harmful to the host directly or indirectly.
Water supplies, water parks, municipal swimming pools, and water supplies are all potential breeding grounds for Cryptosporidium. It causes a diarrheal disease.
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A blood alcohol content (bac) of ______ or higher produced driving impairment in all people.
A blood alcohol content (bac) of 0.5 or higher produced driving impairment in all people.
Blood Alcohol Content- The amount of alcohol in the blood or on the breath is known as the blood/breath alcohol concentration (BAC). The mass of ethanol, in grams, in 100 milliliters of blood or 210 liters of breath is used to measure blood alcohol content (BAC). Blood, urine, or breath tests can be used to determine BAC.
Blood alcohol levels depend on a variety of variables, including the quantity of drinks consumed, body weight, gender (females have greater blood alcohol levels than men when they consume the same amount of alcohol), and number of drinks.
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If nucleotides from the dna of a human were quantified and 30 percent of them contained the base adenine, what percentage of them would contain the base guanine?.
If 30% of the DNA is Adenine, then 20% will be guanine.
What is chargaff's rule?The molar ratios [A] = [T] and [C] = [G] were present in all species, and the ratio [C + G] / [A + T] was often lower than unity since [C + G] is a less common element. And Chargaff's rule name is given to these ratios.
Additionally, the molar similarities of A with T and C with G naturally support a certain type of combination link. Furthermore, Chargaff himself is unwilling to take a chance on claims of his experimental observation in the absence of new experimental ideas.
Additionally, he believed that Watson and Crick's model-building strategy was not grounded in science. Most notably, he later disparaged molecular biology in general and eventually grew frustrated at what he perceived as a refusal to acknowledge the significance of his work.
Therefore, in this case, 30% is Adenine and 30% will be Thymine, so the remaining 40% will be GC, out of which 20% will be Guanine.
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If a total of 2000 kcal were consumed (energy came from 250 grams of carbohydrates, 66 grams of fat, and 102 grams of protein), what percentage of energy comes from carbohydrates, fat, and protein?
The percentage of energy that comes from carbohydrates, fats and protein are 50%, 30% and 20% respectively.
What are biomolecules and its importance?Biomolecules are necessary for the functioning of all living things. Many different small and big molecules, including amino acids, vitamins, fatty acids, neurotransmitters, and hormones, make up biomolecules (protein, carbohydrates, nucleic acids, and enzymes). Nucleic acids, lipids, proteins, and carbohydrates make up the four primary categories of biomolecules.
How long can people live without biomolecules?
Lipids, proteins, carbohydrates, and nucleic acids make up the building blocks of life. All life on Earth depends on each and every one of the four groups. A cell or creature could not exist without one of these four molecules.
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In times of carbohydrate deprivation, the body can create glucose from amino acids in a process called:________
Metabolic rate of alcohol is unaffected by exercise. group of answer choices true false
Metabolic rate of alcohol is unaffected by exercise TRUE.
The basal metabolic rate (BMR) calculates the bare minimum of calories required for a person to maintain their essential bodily functions over the course of a 24-hour period of rest. Such processes include breathing as an example. circulation. digestion as well as nutrient absorption
The three elements that make up the metabolic rate are the baseline metabolic rate, the energy expended during physical activity, as well as the thermic effect with food.
Alcohol reduced shivering metabolic rate by an overall mean of 13%, insufficient to affect cooling rate.
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Explain how bacteria affect the water-holding and nutrient-holding capacity of soil?
Bacteria improve the nutrient holding capacity of the soil as they perform nutrient cycling as well as decomposition of dead and decaying matter that increases the nutrient richness of the soil. The water holding capacity is improved by the formation of aggregates of soil that hold the water molecules efficiently.
Nutrient cycling is the process in which a nutrient follows a specific path repeatedly and benefits the living organisms in the process. The pathway generally includes of both, the living as well as the non-living factors. The various nutrient cycles that run in the nature are: carbon cycle, sulfur cycle, nitrogen cycle, etc.
Decomposition is the process of decaying of the dead organic matter of plants or animal that results in the transfer of nutrients from the dead organic matter to the soil.
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Which two statements correctly describe the relationship between science and technology
Answer:
The answer is C and D
Explanation:
The two statements that correctly describe the relationship between science and technology are
C. Scientific discoveries can be made as a result of new technology.
D. Scientific discoveries influence the development of new technology.
What are science and technology?Technology and science mutually advance one another. The development of new technologies is based on scientific understanding. Scientists are frequently able to examine nature in novel ways and create novel findings thanks to new tools.
The telescope and microscope are two examples of technology that have advanced science. Technology is the use of knowledge to accomplish practical objectives in a dependable and repeatable way. The result of such an effort is also referred to as technology.
Science, industry, communication, transportation, and daily living all make extensive use of technology.
Therefore, the correct options are C and D.
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What are the functions of the stratum corneum layer of the skin? select all that apply.
The function of stratum corneum prevent unwanted materials from entering and excessive loss of water from existing the body.
What happens when the stratum corneum is damage?Damage of stratum corneum lead to multiply skin impairment including increase transepidermal water loss , redness,and susceptibility to infection or irritation by external factors.
The function of corneum stratum to form a barrier to protect underlying tissue from infection, dehydration chemicals and mechanical stress.
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When environmental conditions around a bacterium are either a neutral ph or an alkaline ph, the surface of a bacterium will:__________-
When environmental conditions around a bacterium are either a neutral ph or an alkaline ph, the surface of a bacterium will: have a negative charge
To identify if a bacterium has a negative charge a gram stain must be performed, this is a rapid laboratory test used to detect the presence of bacteria that cause an infection, if the result of the gram stain is red the bacteria are gram negative.
What is a bacteria?It is a microorganism formed by a single cell, of small size. Its cellular structure is prokaryotic and it is characterized by not having a nucleus.
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Sexually reproducing organisms produce ____________ gametes when ____________ cells undergo meiosis.
Answer:
haploid gametes and germ cells
With which body system does the respiratory system work to regulate the ph of body fluids?
The respiratory system interacts with the circulatory system to deliver this oxygen and eliminate metabolic waste. Additionally, it aids in controlling blood pH.
What is the circulatory system of the body?To obtain oxygen into the blood, the circulatory system (cardiovascular system) pumps blood from the heart to the lungs.Blood arteries in the circulatory system move blood away from and toward the heart. The remainder of the body receives oxygenated blood from the heart via arteries. Oxygen-depleted blood is returned to the heart by veins to restart circulation.The importance of the circulatory system.The circulatory system removes wastes from the body and provides nutrition and oxygen to cells.Different sides of the heart pump both oxygenated and deoxygenated blood. Arteries, capillaries, and veins are the different types of blood vessels.learn more about circulatory system here
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What happens when a virus attacks a cell?
Answer:
the cell gets infected with the virus I think
Explanation:
it will as the virus will spread to the cell so the cell also turns into a virus
Dr. chu studies the environmental influences on gene expression by studying identical twins that have been reared apart. dr. chu's field of study is called:_____.
Dr. chu studies the environmental influences on gene expression by studying identical twins that have been reared apart. Dr. Chu's field of study is called epigenetics.
Gene expression is the process from which the functional proteins are made from a gene by the processes of transcription and translation. First m-RNA is formed from the DNA and the it is translated to form the protein. All the proteins formed inside the body are a result of gene expression.
Epigenetics is the study of reversible changes in the gene. These changes are not inherited to the further generations. The environmental factors are the major reason for thee changes. The changes could be methylation, acetylation, etc.
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Because muscle contractions often need to happen quickly, they are controlled via _____________ receptors.
Because muscle contractions often need to happen quickly, they are controlled via ionotropic receptors.
What is ionotropic?
A class of transmembrane ion channels known as ionotropic receptors respond to the binding of a chemical messenger (ligand), such as a neurotransmitter, by opening or closing the channels. Endogenous ligands often attach to LGIC protein complexes at an allosteric binding site, which is situated on a separate part of the protein than the ion conduction pore. The ion channel's activity is controlled by a ligand, and it typically exhibits high selectivity for one or more ions, such as Na+, K+, Ca2+, or Cl-.
Nicotinic acetylcholine receptors are the standard example of ligand-gated ion channels. It is made up of five protein subunits called pentamers, each of which has two cholinergic binding sites that, when occupied, change the receptor's structure and allow an internal pore to open.
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The bacterial flagellum is driven to rotate by protons moving down a charge and ph gradient and the energy provided is called the?
The energy generated by protons travelling down a charge and ph gradient to rotate the bacterial flagellum is known as the proton motive force.
A proton motive force
In the mitochondria of most tissues, the proton-motive force produced by the respiratory chain complexes is mostly employed to move protons through the ATP synthase complex, where they are converted into ATP from adenosine diphosphate (ADP) and phosphate.
Is there a pH gradient in proton motive force?The proton motive force is produced by an electrochemical gradient that has both chemical and electrical components. The pH gradient, or varying proton concentrations, is what causes protons to migrate across the membrane with a movement of molecules from one side to the other and is what makes up the chemical component.learn more about proton motive force here
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that occur(s) when atoms share
electrons unequally is/are called
generally produce(s)
that occur(s) as weak attractions
between dipoles is/are called
that occur(s) when atoms share
electrons equally is/are called
generally produce(s)
that occur(s) when atoms
transfer electrons is/are called
generally produce(s)
A polar bond that occur(s) when atoms share electrons unequally.
A Nonpolar Covalent Bond occur(s) when atoms share electrons equally.
What is a Nonpolar Covalent Bond?This is known to be a bond that is said to have created if atoms are said to share their electrons in an equal way.
Note that this is one that often occurs if two atoms are said to be the same or are similar or have the similar electron affinity.
Note also that the closer the values of a given electron affinity, the stronger the attraction.
Therefore, A polar bond that occur(s) when atoms share electrons unequally.
A Nonpolar Covalent Bond occur(s) when atoms share electrons equ
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A temperate biome with high temperatures and little precipitation is a
tropical grassland
tundra
coniferous forest
chaparral
A tropical grassland is a temperate biome with high temperatures and little precipitation (option A).
What defines a tropical grassland?A grassland is defined as an area where grasses predominate over large shrubs or trees. A grassland can either be tropical or temperate depending on the temperature.
The tropical grassland also called savanna is a grassland with few scattered trees. This is due to the relatively low amount of rainfall/precipitation per annum. The tropical grassland is also characterized by high temperatures and low rainfall.
Therefore, it can be concluded that a temperate biome with high temperatures and little precipitation is a tropical grassland.
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What brain structure enables this water polo player to coordinate his swimming and throwing motions?
Cerebellum brain structure enables this water polo player to coordinate his swimming and throwing motion.
Cerebellum - A large number of processes and functions in both our brain and body are coordinated and regulated by the cerebellum, which is a component of the brain. Even though it's quite little compared to our entire brain, it contains more than half of the body's neurons. Neurons are the cells that make up your nervous system.
Neurons- The basic building blocks of the brain and nervous system are neurons (neurons or nerve cells). Neurons are the cells that receive sensory information from the outside world, give motor orders to our muscles, and convert and relay electrical impulses at each stage along the way.
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The brain's right hemisphere is best described as _____ the left hemisphere's processing.
The brain's right hemisphere is best described as complementing the left hemisphere's processing.
What does the right hemisphere of the brain control?The right side of the brain significantly controls the left side of the body and the left side of the brain generally regulates the right side of the body. Due to this, the damage to one side of the brain is going to influence the opposite side of your body.
The two hemispheres of the brain are known as the left hemisphere and the right hemisphere. Both of them are connected with the help of a thick band of nerve fibers called the corpus callosum.
Both regions of the brain are capable to communicate with each other through this bridge. It also regulates the complementing process between the two hemispheres of the brain.
Therefore, the brain's right hemisphere is best described as complementing the left hemisphere's processing.
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Most viruses form a capsid around their nucleic acid core. this capsid is composed of?
The layer of the embryonic disk that will develop into the muscles, skeleton, circulatory system and other internal organs is called the?
Any one of the three cellular layers formed during animal embryogenesis and later differentiated to become the various organs and tissues of the organism are referred to as the "germ layer." Three early cell groupings or starting tissues are the ectoderm (cells on the outside), endoderm (cells inside), and mesoderm.
Endoderm is responsible for the development of the lungs, throat, thyroid, parathyroid, stomach, colon, liver, pancreas, urine bladder, the lining of the urethra, epithelial parts of the trachea, and intestines.
The skeletal, connective tissue, urogenital system, heart, blood (lymph cells), spleen, dermis of the skin, crystal lens of the eye, and skeletal muscle are all developed from the mesoderm.
The ectoderm is responsible for the development of the mammary glands, the central nervous system, the eye's lens, the ganglia and nerves, pigment cells, the connective tissues of the head, the epidermis, and the skin.
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What are ocean animals' biological clocks in tune with so that their lives are not upset by high and low tides?
A. Lunar rhythm
B. Annual rhythm
C. Seasons
D. Rain schedule
The ocean animals also keep time using the Lunar rhythm.
What are ocean animals?The ocean animals are the animals that can be found in the ocean. We know that the ocean is salt water. Another name for ocean animal are marine animals. In the Marine ecosystem there are high and low tides.
More recent scientific evidence has shown that, aside from the internal biological clocks of the organisms and that of the rising and falling tides. The ocean animals also keep time using the Lunar rhythm.
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Answer:
A. Lunar rhythm
Explanation:
Scientific evidence has shown that, aside from the internal biological clocks of the organisms and that of the rising and falling tides, the ocean animals also keep time using the Lunar rhythm.
Dna helicase inhibitors are well studied as potential drug targets. What would you expect to see if dna helicase activity is inhibited?.
DNA strands are separated and ATP hydrolysis is catalyzed by the helicase, preventing the unwinding of the double helix.
What is helicase?Nucleic acid or nucleic acid protein complexes can be altered or bound by enzymes referred to as helicases. Helicases are present in both DNA and RNA. DNA helicases are essential for DNA replication because they separate double-stranded DNA into single strands, enabling each strand to be copied. During DNA replication, DNA helicases unwind DNA at regions known as origins, where synthesis will start. The replication fork is a structure that develops as the DNA helicase unwinds the DNA. It is so called because the two strands of DNA appear to fork as they are unzipped apart. The hydrogen bonds that bind the nucleotide base pairs of the double-stranded DNA together must be broken using energy.Learn more about the helicase with the help of the given link:
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If you receive information about an object through your tactile sense, you have?
Touched it
If you receive information about an object through your tactile sense, you have touched it.
What is tactile sense?Our skin has tactile receptors, which recognize the experience of touch. Our mouth and hands, for example, have more touch receptors than other parts of our skin. Identification of touch, pressure, pain, temperature, and texture depends on the tactile senses.What senses the sensation of touch?The activation of nerve signals that communicate the body's perception of texture, warmth, and other touch sensations is referred to as tactile stimulation.What are the four touch senses?Only the pressure sense has its own unique receptors among the thousands of nerve endings in the skin, which respond to the four basic sensations of pressure, hot, cold, and pain. The other four are combined to produce additional feelings.To learn more about tactile sense visit:
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What type of epithelial tissue is most likely to be found lining the respiratory passageway due to its ability to move mucus?
The pseudostratified columnar epithelium is the most likely to be found lining the respiratory passageway due to its ability to move mucus.
What is a respiratory passageway?The web of tissues and organs that aids in respiration is termed as the respiratory system.
The majority of the respiratory system is lined with respiratory epithelium, a ciliated pseudostratified columnar epithelium that is absent from the larynx and throat.
Thus, the pseudostratified columnar epithelium is the most likely to be found lining the respiratory passageway due to its ability to move mucus.
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Which of these traits have been found by twin studies to be strongly hereditary? liking of spicy foods dislike of romance movies dancing ability schizophrenia stubbornness
Schizophrenia traits have been found by twon studies to be strongly hereditary.
What is hereditary?Hereditary theory holds that many physical characteristics can be passed down from generation to generation via DNA, by passing on the set of instructions or genes in your DNA to your offspring.
Heredity in biology refers to the transmission of genetic factors from parents to offspring or from one generation to the next. The biological definition of heredity may also refer to the association of a specific trait with an individual organism's genetic constitution rather than environmental conditions.
Eye color is an example of DNA.
There are four types of hereditary
Dominant, recessive, Co dominant, intermediate.
It is more likely that different combinations of genes make people more vulnerable to the condition. However, having these genes does not guarantee that you will develop schizophrenia. Twin studies provide evidence that the disorder is partially inherited. The same gene is shared by identical twins.
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The non-mendelian inheritance pattern observed in snail coiling is most related to ______.
The non Mendelian inheritance pattern observed in snail coiling is most related to maternal inheritance.
Why is genetic inheritance important?Genetic inheritance is necessary for evolutionary change. It describes how genes are passed from one generation to the next.It might consequently initially seem surprising then, that genetic inheritance itself is rarely inculded in life research.
The phenotype controlled by organelle genes exhibit maternal inheritance.The classic phenotype which exhibits maternal effects is coiling direction of snail shell.The phenotype that is seen in the offspring is controlled by the genotype of the mother.
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A drop of blood is added into a solution and found that red blood cells will hemolyse. what solution it might be?
apply the concept based on the results observed in the lab experiment.
The solution might be hypotonic.
When a drop of blood is added in the hypotonic solution, it may hemolyse Or bursting of cell take place, this is because the solvent comes inside the cell due to lower concentration of solute and it becomes hemolysed.
There are three types of solutions.
Hypertonic condition of the solution occurs when the concentration of solute outside is higher than that inside the cell. Hypotonic condition of the solution occurs, when the concentration of solute outside is lower than that inside the cell. Isotonic condition of solution occurs when concentration of dissolved solute outside is equal to the concentration of solute inside the cell.To learn more about hypertonic and hypotonic solution, refer this link.
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In a high-___ work system, a firm's technology, organizational structure, people, and processes work together seamlessly. this results in the firm having an advantage in the competitive environment.
Answer:performance
Explanation: