A scientist grew an Elodea plant in a freshwater aquarium. She
removed a leaf from the plant and placed the leaf in a hypertonic
solution containing 8% salt in order to observe what happened to the
cells within the leaf. When she looked at the cells under a microscope,
she noticed that the cells in the leaf shrunk. Which statement best
explains what caused the cells to shrink?
A. The hypertonic solution caused the water in the cell to move from the
cytoplasm into the nucleus.
B. The salt moved from the hypertonic solution into the cell and
chemically bonded with the water.
C. The salt within the cell moved through the cell membrane into the
solution with the higher salt concentration.
D. The water within the cell moved through the cell membrane into the
solution with the lower water concentration.

Answers

Answer 1

Answer: D. The water within the cell moved through the cell membrane into the  solution with the lower water concentration.

Explanation:

Osmosis is the process of movement of water or any other fluid from a region of higher concentration to a region of lower concentration across a semipermeable membrane.

A hypertonic solution is the one which has higher solute concentration and low solvent concentration.

According to the given situation, the scientist when placed the leaf in the hypertonic solution containing 8% salt solution. The water in the leaf cells will move out of the leaf due to osmosis and the leaf will shrink. As the 8% salt solution is hypertonic.


Related Questions

Which of the following correctly shows a prairie food chain?
grass, grasshopper, lizard, hawk
hawk, grasshopper, lizard, grass
snake, grasshopper, hawk, grass
grasshopper, grass, snake, hawk

Answers

The first one does.

Answer:

A - Grass, Grasshopper, Lizard, and Hawk

Explanation:

Grass will start first because it is the producer, then Grasshopper, Lizard and Hawk. It is like going from smallest to biggest.

Which one of the following statements is TRUE regarding bone?

Answers

Answer:

Where are the statements my friend so i can help you?????

Explanation:

describing the action potential and its phases

Answers

An action potential is caused by either threshold or suprathreshold stimuli upon a neuron. It consists of four phases; hypopolarization, depolarization, overshoot, and repolarization. An action potential propagates along the cell membrane of an axon until it reaches the terminal button.

I have two questions .

Earth Science

Answers

Answer:

here's some thoughts

Explanation:

Glaciers cut through rock and deposit the sediments as they melt.

In Connecticut, Long Island Sound was created by glaciers. Glaciers created a natural barrier between the ocean and the land. Almost like a moat protecting a castle.

There are many large boulders in cities around Connecticut that were left behind after the ice melted away. The Connecticut River Valley was cut by a glacier.

choose a plant or animal that you think is interesting. describe some of the threats or challenges

Answers

Answer:

If I were to choose a plant or animal which is interesting, I'd choose the "cactus."

Explanation:

A "cactus" is truly a splendid plant owing to its ability to survive in the desert or periods of drought. Growing them is also not that challenging or difficult. However, this plant is prone to certain threats that may lead to its extinction.

One of these threats is the "over-collection of cacti." Due to its versatile use, the cactus is often sold as an ornamental plant. Another threat is the number of pests, such as snails and slugs, that attacks it yearly. It is a delicious food for mealy bugs, red spider mites, gnats, flies, etc.People often misunderstand the cactus' water level needs. Some people over-water the plant and this often results to the bacteria, virus and fungi being attracted to it.

Water Hyacinth

Water Hyacinth grows profusely, forming dense mats that can spread across water surfaces eventually blocking the entire water body.

It can eliminate native wetlands and waterways and kill aboriginal fish and other wildlife.

Also, it causes a high evaporation rate and loss of water and degrades water quality.

What are the natural predators of the water hyacinth?

Water hyacinth is native to South America, the only continent where natural predators such as weevils and moths keep it at bay.

Thus, these are some of the threats or challenges of water hyacinth.

To learn more about water hyacinth click here:

https://brainly.com/question/2250872

Match the costs to their respective categories.
raw materials
machinery
by-products
employees
odor arising from
production
Internal Costs
External Costs

Answers

Answer:

odor rising from production internal costs

Answer:

internal costs

raw materials

employees

machinery

external costs

odor arising from production

by-products

Why would competition among individuals within a deer population increase during a winter season?
A. Many plants die and less vegetation is available.
B. The winter season has produced an abundance of food.
C. Many individual deer have emigrated.
D. The population has suffered a crash as a result of attack by predators.

Answers

Answer:

A. many plants die and less vegetation is available

Explanation:

Therefore, they have to increase competition for scarcer resources.

which of the following is NOT a macromolecule used by cells;
A( proteins
B( carbohydrates
C( lipids
D( nucleic acids
E( monosaccharides

Answers

Answer:

Monosaccharides

Explanation:

A monosaccharide is a monomer of a carbohydrate. Macromolecules are made up of monomers!

When did the reign of terror end ?

Answers

Answer:

July 28th, 1794

Answer:July 28, 1794

Explanation:

Hope it helps

Based on this information, what can you conclude about tissues? A. All tissues in the body have similar functions. B. All tissues band together to form cells. C. Each type of tissue has a different function. D. Some tissues are more important than others.

Answers

Answer: Each kind of tissue has a different function

Explanation:

Our tissues are divided into four types: epithelial, connective, muscular, and nervous. The structure of each type of tissue differs from one another, which determines its function.

The cell walls of bacterial cells and plant cells function inmoving organelles throughout the cell.

modifying lipids and proteins.

producing the cytoskeleton.

maintaining cell shape.

containing DNA.

Answers

Answer:modifying lipids and protiens

Explanation:

Question 6
Review
A mutation changes a gene in a cell in the stomach of an organism. This mutation coul
1.
both the organism and its offspring
2.
the organism, but not its offspring
3.
its offspring, but not the organism itself
4.
neither the organism nor its offspring
Submit Answer

Answers

Answer:

2

Explanation:
Since the mutation occurs within the organism it is directly affected. However, mutations need to occur in the reproductive system of organisms to affect their offsetting

Compare how cells in unicellular and multicellular organisms perform the tasks needed for life.

Answers

Answer:

These organelles are responsible for a variety of cellular functions, such as obtaining nutrients, producing energy, and making proteins. Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function

Explanation:

Which of the following animals has a broad niche?
Sea slug
Protists in termites
Snowy owl
Raccoon

Answers

Answer:

raccoon

Explain

because raccoons can basically live anywhere and eat anything snowy owls cant live somewhere hot like in California. and I don't know what kind of termites your talking about

Organisms such as opossums and bison have a broad niche as they can survive and reproduce in a vast array of environments. Humans also fall into the broad niche group.

How does genetic variation allow a population to survive during environmental changes?

Answers

It allows natural selection and therefore increase or decrease in allele frequency that are already in the generation

Kubusse. Fig. A Fig. B Fig. C ANSWER: ANTWOORD Choose: / Kies Figure A, B or C/ Figuur A, B or C. QUESTION / VRAAG 2.1 What Figure has the greatest volume? Watter figuur het die grootste volume? 2.2. What figure has the greatest surface area? Watter figuur het die grootste oppervlakte? 2.3 2.4 What figure has the greatest surface area : volume ratio? Watter figuur het die grootste oppervlakte : volume verhouding? If each cube represents a cell. What figure will be the most efficient of transporting materials into and out of the cell? Indien elke kubus 'n sel verteenwoordig, watter figuur sal die meest efektiefste wees om stowwe in en uit die sel te vervoer? ( 4)

Answers

Answer:

1a

2c

3b

4d

5a

Explanation:

make me brainless

using the passage which statement correctly describes the energy level of a group of organism

Answers

Answer:

Largemouth bass fish are tertiary consumers that receive the smallest amount of energy in the pyramid.

Explanation:

which fossil record would likely show more diversity in-living organisms of marine organisms?

Answers

Answer:

The correct answer is desert-dwelling species.

Explanation:

Any preserved remains, trace or impression of anything, which was once living in the past is termed as a fossil. The examples of fossils comprise stone imprints of microbes or animals, bones, exoskeletons, shells, coral, remnants of DNA, the substances getting preserved in amber, and others.  

For the formation of fossils, the most essential condition is decomposition that takes place gradually, that is, at a slow pace. Thus, places like wet marshy areas will be the locations where the maximum of the fossils can be found as such places provide optimum conditions for slow mineralization and decomposition of bones.  

what are the limitations of the cell theory?​

Answers

Answer:

Viruses are a limitation to cell theory

Explanation:

According to cell theory, all cells arise from pre - existing cells. But viruses lack any membranes and do not show the characteristics of life unless they enter a living body and use its cell machinery to multiply.

What type of chemical reactions only occur if there is an input of energy?

Answers

Answer:

Synthesis reactions

Explanation:

"Synthesis reactions bond reactants together, a process that requires energy, whereas decomposition reactions break the bonds within a reactant and thereby release energy." :)

What controls the cell cycle at key checkpoints?

Answers

Answer:

Two groups of proteins called cyclins and cyclin-dependent kinases (Cdks), are responsible for the progress of the cell through the various checkpoints. The levels of the four cyclin proteins fluctuate throughout the cell cycle in a predictable pattern

Explanation:

I hope this helped you!

Why are certain bacterial infections difficult to treat with antibiotics?

Answers

Answer:

When the Bacteria becomes resistant, the germs spread and grow. In some cases they can they can spread the resistance onto other bacteria's

Explanation:

What controls the ratio of the two isotopes in foraminifera shells?


A. The temperature of the water


B. The salts in the water


C. Water pressure


D. Radiation

Answers

Answer:

A. the temp of the water

Explanation:

a sediment core from the JOIDES Resolution, an ocean-going ship that has collected many sediment cores that record Earth’s past climate.

The ratio of the two isotopes in foraminifera shells is affected by temperature.

What is temperature?

Temperature is the degree of coldness or hotness of an object or a particular place.

Isotopes are atoms of the same element with different masses.

The factors affecting the ratio of isotopes of elements depends on the Half-Life of the isotopes as well as temperature.

Temperature will make the rate of decomposition reaction faster.

The ratio of the two isotopes in foraminifera shells is affected by temperature.

Learn more about isotopes at: https://brainly.com/question/14220416

What volume percent of the liquid you skimmed into your test tube is oil? (show a ratio value if
you have it) ____________________________
How did you arrive at this answer? _________________________________________________
______________________________________________________________________________

Answers

Maybe once you start answering other people's questions correctly, you might get the answer that you want!

Best regards,

your friend

;)

Answer:

mhm

Explanation:

Which of the following is similar among all living organisms on Earth?
A.
social behavior
В.
cellular function
C. physical appearance
D.
all of these

Answers

Answer: B

Explanation:

Cellular function is the answer

What event accompanies energy absorption by chlorophyll (or other pigment molecules) of the photosystems

Answers

Answer:

an electron is exited

Explanation:

as the electrons are released into the system of electron carriers involved with photosystem two, they lose their energy

Englo
Unit Test
Ur Test Active
2
8
TIME REMAINING
01:53:24
Sopria was stucying with Maalik about the layers of the Earth. They were given several different statements about the
Which statement about the layers would they identify as correct?
The outer core is less than 70 km in thickness.
The crust assists informing Earth's magnetic field.
The mantie is derser than the crust
O Pressure increases when moving from the core to the crust.

Answers

Answer:

I think the answer is B

Explanation:

Sorry If I got it wrong -w-

Answer:

its b

Explanation:

A biology student is writing a research paper about different bear species.
He begins by writing that all bears belong to the Class Mammalia, Order
Carnivora, and the Family Ursidae. Which scientific aspect of bears is he
writing about?

1.Embryology

2.Comparative Anatomy

3.Taxonomy

4.Molecular Biology

Answers

The scientific aspect of the bears he is writing about is taxonomy.

What is the concept of taxonomy?

Taxonomy is, by

DefinitionClassificationSystematic.

The rescue of taxonomy in information systems considers the systematic unit (taxon) no longer family, genus, species, but concepts. Here, the classes are presented in a logical order, also supported by classificatory principles.

With this information, we can conclude that the scientific aspect of the bears he is writing about, is the Taxonomy.

Learn more about taxon in brainly.com/question/367202

collagen is living or nonliving?

Answers

Non living . As it doesn’t contain life

Answer:

The answer is nonliving.

why is it easy for a virus to mutate?

Answers

Answer:

Viruses mutate very quickly The major reason that viruses evolve faster than say, mosquitoes or snakes or bed bugs, is because they multiply faster than other organisms. And that means every new individual is an opportunity for new mutations as they make a copy of their genetic material. Many of those mutations have no noticeable effect.

Explanation:

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