Jamal and Sarah are investigating osmosis in potatoes. The drawing shows their *
experimental setup. They immersed a firm, freshly peeled potato into a container
with a solution provided by their science teacher, Ms. Stewart (Fig. 1). The next
day, they observed that the potato had shrunk and softened (Fig. 2). Describe the
nature of Ms. Stewart's solution and why the potato shrank?
Fig. 1
Your answer
24 hours
Fig. 2
Answers
The result of the experiment suggests that Ms. Stewart's solution was hypertonic, and that the potato shrunk because water moved by osmosis in favor of its concentration gradient from the potato to the solution.
What is osmosis?
Osmosis is a simple diffusion transport that occurs when water moves from a more diluted solution to a less diluted one through a semipermeable membrane.
When two solutions of different concentrations are separated by a membrane (with the same properties as the cell membrane), the only molecule allowed to pass from one side to the other is water (not solute molecules).
Water goes from the hypotonic solution (less concentrated) to the hypertonic one (more concentrated), and keeps doing so until concentrations on both sides get equal.
In the exposed example,
A fresh potato was placed on a solution of unknown solute concentration.
There were two options for this potato,
If the solution was hypotonic to the potato, the potato would have gained water. This means that water would have moved from the solution to the potato, and this last one would have swelled.
If the solution was hypertonic to the potato, the potato would have lost water. This means that water would have moved from the potato forward to the solution, and the potato would have shrunk.
After a day, Jamal and Sarah noticed that the potato shrunk.
This result suggests that Ms. Stewart's solution was hypertonic and that the potato shrunk because water moved by osmosis in favor of its concentration gradient from the potato to the solution.
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Related Questions
Glyphosate is a chemical used in herbicides to kill plants. Glyphosate works
by stopping the production of amino acids. Which type of organelle must
interact with glyphosate, to prevent the amino acids from joining together
and killing the plants?
Answers
The correct answer is shikimate type of organelle must interact with glyphosate, to prevent the amino acids from joining together and killing the plants .
Glyphosate inhibits the enzyme 5-enolpyruvylshikimate-3-phosphate (EPSP) synthase in plants, disrupting the shikimic acid pathway. The resulting decrease in EPSP production reduces aromatic amino acids, which are essential for protein synthesis and plant growth.
Glyphosate is a non-selective herbicide, which means it will kill nearly all plants. It prevents plants from producing certain proteins required for plant growth. Glyphosate inhibits a particular enzyme pathway, the shikimic acid pathway. Plants and some microorganisms require the shikimic acid pathway. Glyphosate is a phosphonic acid formed by the formal oxidative coupling of methylphosphonic acid's methyl group with glycine's amino group.
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Assuming that all of these cells came from the same person, which of the following is true? A. Each cell contains different DNA depending on whether the cell came from the person's mother or father. B. Each cell contains the same DNA, and the same genes are being expressed in each one. C. Each cell contains different DNA depending on the function that the cell performs in the body. D. Each cell contains the same DNA, but different genes are being expressed in each type.
Answers
Assuming that all of these cells came from the same person, the following is true; Each cell contains the same DNA, but different genes are being expressed in each type; option D
What are cells?Cells are defined as the basic unit of life.
All forms of life are composed or exists as singe cells.
Some organisms are composed of many cells while some organisms are only singe cells.
Organisms that are composed of many cells are called multicellular organisms whereas organisms that are composed of just one cell, are called unicellular organisms
All the cells of a unicellular organism such as humans contains the same DNA of that individual. However, the genes in the DNA of cells are expressed differently according to the specialization of the cell.
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what type of cell transport uses carrier proteins
Answers
HELP ...BRAILIEST
If a cell was producing too much energy, which component would step in to hold the energy until it was needed?
Question 5 options:
rough endoplasmic reticulum
vesicles
lysosomes
mitochondria
Answers
Answer:
mitochondria
Explanation:
is the answer
Pick an organism and tell me, in great detail, how that organism maintains homeostasis.
Answers
In order to maintain homeostasis, the desert rat:
lives in burrows built in the desertmaintains a nocturnal lifestyle has little fur What is homeostasis?Homeostasis is the process by which a living organism maintains a fairly constant internal environment.
Homeostasis refers to the mechanisms by which a organism responds to internal as well as external environmental changes.
All living organisms possess a mechanism for maintaining homeostasis.
A typical organism that maintains homeostasis is the desert rat.
The desert rat lives in the very harsh environment of the desert where there is extreme heat.
In order to maintain a fairly constant internal environment, the desert rat lives in burrows built in the desert. Also, the desert rat maintains a nocturnal lifestyle coming out in the dark when the temperatures have reasonably cooled.
Also, the desert has little fur so that the body can easily lose heat.
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An individual is charged with criminal mischief and imprisoned for graffitiing a highway overpass. The punishment is an example of a(n) ??
Multiple Choice
formal sanction.
informal sanction.
norm.
value.
Answers
Since the individual is charged with criminal mischief and imprisoned for graffitiing a highway overpass. The punishment is an example of a formal sanction.
What is formal sanction?Formal sanctions is known to be any actions that can be authorized, formal, and are put into effect by the use of a powerful force. Formal sanctions is made up of punishments and rewards from authorities, such as those given by law enforcement as well as educational institutions.
For example, if a person is caught speeding in your car, the sanction that will be brought against that person a fine they have to pay.
Therefore, Since the individual is charged with criminal mischief and imprisoned for graffitiing a highway overpass. The punishment is an example of a formal sanction.
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In this way, the exergonic reaction of ATP hydrolysis is ____________ to an endergonic reaction.
Answers
In this way, the exergonic reaction of ATP hydrolysis is coupled with an endergonic reaction.
What is ATP hydrolysis?ATP hydrolysis is an exergonic chemical reaction because this releases energy, which is coupled to an endergonic reaction inside the cell that needs the energy to perform metabolic functions such as, for example, chemical reactions involved in cell differentiation.
In conclusion, In this way, the exergonic reaction of ATP hydrolysis is coupled with an endergonic reaction.
Complete Question:
Fill in the blank. In this way, the exergonic reaction of ATP hydrolysis is ____________ to an endergonic reaction.
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Help pls !!!!!!!! I’m very confused
Answers
Answer:
Mols enzymes are proteins
The catalyse metabolic
Which of the following statements about electromagnetic radiation is true?
The shorter the wavelength, the more energy is carried.
The sun produces a low-energy radio waves.
The sun produces high-energy gamma rays.
All statements are correct.
Answers
Each of the claims is true. Let's look at the following as an explanation for this:
A wave's energy is directly inversely related to its frequency. As a result, as frequency increases, wavelength decreases and wave energy increases. Solar radiation, which is a subset of the vast range of energy known as the electromagnetic radiation spectrum, is how the entire amount of solar energy that reaches the Earth. Infrared, radio waves, X-rays, gamma rays, ultraviolet light, and visible light are all types of solar radiation. One technique to transport heat is by radiation.
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Smallest citrus fruit: Clementine b. lemon e orange
Answers
Answer:
clementine
Explanation:
Kumquats are the smallest but out of options clementine
Answer:
Lemon
Explanation:
Clementine is hybrid of sweet orange and mandarin orange so it is bigger than orange and orange is bigger than lemon. So lemon is smallest.
How would having a fat-based cell membrane be of benefit to cells
Answers
Which micropipette would you use to transfer 9uL?
A. Range 1.0-10uL
B. Range 2uL-20uL
C. Range 100uL - 1000UL
D. Range 10uL-200UL
Answers
A pipette of range 1.0-10uL is the most appropriate for taking a volume of 9 uL. So the correct option is A
What are micropipettes?
In the lab, micropipettes are used to transfer tiny amounts of liquid, typically less than 0.1 uL. In addition to other labs, they are most frequently employed in chemistry, biology, forensics, pharmaceutical, and drug development. There are various sizes of micropipettes commonly used in the laboratory.
Micropipettes vary in size and volume dispensed, and based on those two factors, they also need various pipette tips. Micropipettes aspirate liquid using a disposable pipette tip; take note that only the tip of the pipette comes into touch with the solution. For each sample, a fresh tip is used to avoid cross-contamination.
The quality of a pipette tip is the most important factor to consider. Whether one is searching for a filter, low retention, or gel loading tip, it should be made sure that the pipette tip will function as accurately and precisely as the micropipette. The purity of your pipette tips should be checked.
Therefore the correct option is A.
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what is the maximum initial reaction rate for the enzyme at ph7
Answers
At pH 7, this enzyme's maximal initial reaction rate is 350 X 10>6 per minute of product produced with a saturation of 2–4g of substrate.
An enzyme-catalyzed reaction has a very productive relationship between the substrate concentration and the starting reaction, but the pH of the supplied solution has a significant impact on this relationship. pH7 has the highest rate of productivity.The connection is roughly linear with respect to substrate concentration and pH level up to the saturation point, which in this case was attained between 2g and 4g of substrate.Up until the point of saturation, which in this instance is between 2g and 4g of substrate, the reaction is more productive with increasing concentration. Beyond that point, adding more substrate has no extra benefit.Learn more about the effect of pH on reaction rate here:
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The primary cell wall surrounds the cell, and is composed of
Answers
Answer:
Cell wall is composed of cellulose.
Explanation:
*_*
To produce starch, glucose molecules bond together and release a water molecule through which process?
O photosynthesis.
O cellular respiration.
O nucleotides.
O dehydration synthesis.
Answers
To produce starch, glucose molecules bond together and release a water molecule through dehydration synthesis. Therefore, option (D) is correct.
To produce starch, glucose molecules undergo a process called dehydration synthesis. During dehydration synthesis, two glucose molecules bond together, and a water molecule is released as a byproduct. This reaction is also known as a condensation reaction, as the joining of two molecules results in the formation of a larger molecule and the release of water.
In the case of starch formation, multiple glucose molecules link together through dehydration synthesis, creating a long chain of glucose units, which is the structure of starch. This process is essential in the synthesis of various biological molecules, including carbohydrates, proteins, and lipids, where smaller subunits are joined together to form larger macromolecules through the removal of water molecules. Therefore, option (D) is correct.
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9. Ions are held together by a(n)____bond. (2.1)
a. polar
b. molecular
c. covalent
d. ionic
Answers
Answer: B - ionic
Explanation:
Ionic bond is the attraction between oppositly charged ions
which of the following is not a habit of mind of a good scientist?
a. skepticism
b. creativity
c. intellectual predictability
d. openness to new ideas
Answers
Answer:
it's c! intellectual predictability
In the Bee movie What happened to the flower shop when the bees stopped working and why?
Answers
Answer:it blewed up
Explanation:
kaboom
Answer:
the bees got a bunch of honey so they did not have to get any
Explanation:
What is the main reason that people are hesitant to use nuclear energy?
a.
It produces radioactive waste.
D.
It uses large amounts of water.
C.
The ore used for
nuclear energy must be mined.
d.
It is more damaging to natural habitats than the use of coal.
Answers
Answer: D
Explanation: It is D because it does damage natural habitats, and also uses loads of coal that needs to be produced, that could possibly be Exteremly hazardous or has high end levels of radiation
Two containers of water and their starting conditions are shown below. . How will the temperatures of the water in the containers compare if an equal amount of heat is absorbed by each container of water without boiling? A. Both water temperatures will increase, but container B's will increase more. B. Both water temperatures will increase by the same amount. C. Both water temperatures will increase, but container A's will increase more. D. Both water temperatures will decrease, but container B's will decrease more.
Answers
Answer:
The answer is A: Both water temperatures will increase, but container B's will increase more.
If an equal amount of heat is absorbed by each container of water without boiling then both water temperatures will increase, but container B's will increase more ad is denoted as option A.
What is Temperature?This is referred to as the degree of hotness or coldness of a substance and is influenced by thermal energy It is usually measured with a thermometer and water absorbs it at different rates.
In the diagram below, both container of water will increase but to varying degrees. However, container B which has less water means that its temperature will increase more than container A and is therefore denoted as option A.
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Question 3 of 10
Which action would most likely lead scientists to develop new explanations
or theories about pathogens?
A. Testing a hypothesis about how certain types of pathogens
interact in a controlled setting
B. Gathering new evidence about how pathogens infect and multiply
in human bodies
C. Researching the most dangerous pathogens and the cures that
have been developed
D. Developing new treatments for illnesses caused by pathogens
Answers
Answer:
B. Gathering new evidence about how pathogens infect and multiply
in human bodies
Explanation:
Answer:
B. Gathering new evidence about how pathogens infect and multiply in human bodies.
Explanation:
Got Correct On Assist.
what environment did halomonas cerina bacteria emigrate from
Answers
Answer:
Saline environments.
Explanation:
Which two activities are examples of the work of engineers rather than of
scientists?
A. Developing a new technique to measure water purity
B. Designing materials to absorb water
C. Studying how wildlife is affected by pollution
D. Comparing root structures in different kinds of plants
Answers
Reason: all the others involve research and the scientific process, this one doesn’t.
Are there
more tissues or more organs in your body?
Explain your reasoning.
Answers
Answer: There are more tissues than organs.
Explanation:
There are four types of tissues: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. In terms off types of organs we have 79 different ones but only 5 are considered necessary for survival. Without those five (heart, brain, kidneys, liver and lungs), you wouldn't be alive.
Organs are MADE of tissues. Therefore if there are 79 organs and each organ is made of two or more tissues, tissues will be in higher quantity.
What is the function of steroids/sterols to a cell.
Answers
A steroid is an organic molecule having four rings organized in a certain chemical configuration that is physiologically active. The two main biological roles of steroids are as signaling molecules and as critical elements of cell membranes that affect membrane fluidity. Numerous steroid species can be found in fungi, animals, and plants. Lanosterol (opisthokonts) or cycloartenol are the two sterols used to make all steroid compounds in cells (plants). Squalene, a triterpene, is cyclized to produce lanosterol and cycloartenol. The most known examples of steroids acting as signaling molecules are steroid hormones. Steroids and phospholipids are also parts of cell membranes. Cholesterol and other steroids make membranes less fluid.
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select all that apply. Which organisms are in competition for mangrove tree crabs?
a.) snook (fish)
b.) alligator
c.) ghost shrimp
d.)cuckoo(bird)
Answers
Organisms in competition for the mangrove tree crabs in a mangrove ecosystem;
alligatorcuckoo(bird)What is the mangrove?The mangrove is a swampy area that is filled with a lot of shrubs and is home to a large number of organisms. The feeding relationships in the mangrove also involve predator and prey relationships just as you have in other ecosystems.
The ecosystem is a self supporting system in which there is an exchange of materials and energy. We know that predation is a situation in which one organism feeds on another. This is an intricate part of the food chain in every ecosystem. The mangrove ecosystem is filed with a lot of these myriads of predator prey relationship in the ecosystem.
The following are the animals that are in competition for the mangrove tree crabs in a mangrove ecosystem;
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PLEASE HELP IM RUNNING OUT OF TIME THANK YOU
Which of the following statements, from the cell theory, best supports the idea that viruses are non-living?
A. All viruses are composed of one nucleic acid and protein.
B. All animals are composed of cells
C. All cells are produced from other cells.
D. All living things are composed of cells.
Answers
can you help me please
Answers
The equilibrium price according to the graph is $3.00. Option C.
What is an equilibrium price?An equilibrium price of a product is the price that equates the demand for the product with its supply.
In other words, the equilibrium price is the price at which demand equals supply.
On a graph of price against quantity, the demand curve slopes downward from left to right. On the other hand, the supply curve slopes upward from left to right on the same graph.
The price at which the demand curve intersects the supply curve on the graph is known as the equilibrium price.
From the graph, the approximate value of the equilibrium price is $3.00.
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what is the 2n^2 formula
Answers
Explanation:
2n² means 2 * n²
where, n = 0, 1, 2, 3, ... so on
for example
n = 3
2(3)²
2 * 3² = 2 * 9 = 18
What is capillary action and what property of water does it utilize?
Answers
Answer: Capillary action is the ability to allow water to flow within difficult spaces without any help. It is important for moving water around.
Explanation: hope this helps!