how does a cell react in salt water

Answers

Answer 1
If a higher concentration of salt is placed outside of the cell membrane, the water will leave the cell to bond with it. The loss of water from this movement causes plant cells to shrink and wilt.
Answer 2
If unprotected cells are exposed to salt, or a salt water solution where the concentration of the salt is greater than the concentration in the cellular fluid; the water in the cells will be drawn out, "shrivelling" the cell.

(Re-post)

Related Questions

Which pair of molecules are broken down by the cell to release energy?
a
ADP and carbon dioxide
b
ADP and glucose
c
ATP and glucose
d
ATP and carbon dioxide

Answers

C. ATP and Glucose
Hope this helps!

The pair of molecules that are broken down by the cell to release energy is known as ATP and glucose. Thus, the correct option for this question is C.

Which process is known for this mechanism?

The process that is known for this liberation of energy by the breaking down of molecules of ATP and glucose is known as Cellular respiration.

Cellular respiration may be characterized as a type of chemical process through which oxygen is significantly utilized in order to make energy from carbohydrates such as glucose. Glucose and ATP are high-energy compounds that provide immediate energy to the cells in order to facilitate their metabolic functions.

Therefore, the pair of molecules that are broken down by the cell to release energy is known as ATP and glucose. Thus, the correct option for this question is C.

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Naturalistic observation is commonly used for anthropology studies. true or false

Answers

Based on the given statement above, the correct answer would be TRUE. It is true that naturalistic observation is commonly used for anthropology studies. In naturalistic observation, this is when the researcher makes observations in a particular natural setting (the field) over an extended period of time, using a variety of techniques to collect information. Hope this helps.

Answer:

Naturalistic observation IS commonly used for anthropology studies.

Explanation:

The production of four haploid gametes from one mother cell is completed during

Answers

This is a product of meiosis

Answer:anaphase of meiosis I

Explanation:

What are the two major purposes for mitosis?

Answers

The two major purposes of mitosis are to promote growth and to facilitate cell repair.

_______________ is the difference in inherited traits an organism has from others of the same species

Answers

Variation. This is because when there is variation in the genes while they are genetically swapping, there will be more of a difference since the genes will be a mixture of both parents. 

Answer:

The answer is Variations :)

What is an example of eukaryotic gene regulation? Why is gene regulation necessary or advantageous?

Answers

Gene regulation in eukaryotic cells is regulated by repressors as well as by transcriptional activators. Like their prokaryotic counterparts, eukaryotic repressors bind to specific DNA sequences and inhibit transcription. Any step of gene expression may be modulated, from the DNA-RNA transcription step to post-translational modification of a protein. The following is a list of stages where gene expression is regulated, the most extensively utilised point is Transcription Initiation: Chromatin domains.

Eukaryotic gene regulation, exemplified by the control of transcription initiation, allows organisms to adapt to environmental changes and use resources efficiently, leading to evolutionary advantages.

Eukaryotic Gene Regulation

An example of eukaryotic gene regulation involves the control over the start of transcription, where a multitude of regulatory proteins and elements play a role. One key reason why gene regulation is necessary is because it allows cells to respond to environmental changes and allocate resources efficiently. Moreover, advantageous gene regulation can lead to better survival and reproductive success, providing an evolutionary benefit.

In eukaryotes, the regulation of gene expression is often far more complex than in prokaryotes, involving multiple mechanisms such as the presence of enhancers, which are distant DNA regions that loop back to interact with a gene's promoter. For instance, human cells must coordinate the activity of approximately 25,000 genes without the use of multigene operons, which adds layers of complexity to how genes are turned on and off. This complexity allows for a greater diversity in gene expression, which can be essential for the development and function of multicellular organisms.

The need for gene regulation is exemplified by changes in gene expression, which can have evolutionary consequences. Evolution can act on gene regulation patterns, and changes in these patterns can lead to adaptations that enhance an organism's fitness in changing environments.

the prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle
a. there is no growth phase
b.cell division does not involve division of the cell nucleus
c. DNA does not replicate
d. the cytoplasm and DNA are divided between two new cells.

Answers

I say b.cell division does not involve division of the cell nucleus. A prokaryotic cell does not have a nucleus.

The prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle cell division does not involve the division of the cell nucleus.

What do you mean by Cell cycle?

The cell cycle may be defined as the process a cell goes through each time it divides. The cell cycle consists of a series of steps during which the chromosomes and other cell material double to make two copies.

Prokaryotic cell lacks a nucleus and well-defined cell organelles. Due to the deficient nucleus, a prokaryotic cell never involves the nucleus in its division.

Therefore, the prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle cell division does not involve the division of the cell nucleus.

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Quartz is a rock-forming mineral.

True

False

Answers

The answer to this question is True

What forms whenever a large body of air over land or water does not move for a long period of time?

Answers

The answer for this one is Air Mass.

Answer:

the answer is air masses i hope this helped :D

Which of the following best describes the fate of energy in ecosystems?
a. It will ultimately be recycled back into the ecosystem.
b. It flows from secondary consumers to primary consumers.
c. It enters most ecosystems in the form of sunlight.
d. It flows through and is used by ecosystems.

Answers

best describes the fate of energy in ecosystems It flows through and is used by ecosystems.

Answer:

d.

It flows through and is used by ecosystems.

Explanation:

Which process occurs in a human muscle when it is forced to make ATP without oxygen. A: ETS reactions. B: Cellular respiration. C: Lactic acid fermentation D: Alcoholic fermentation

Answers

The correct answer would be C, which is lactic acid fermentation. Cellular respiration without oxygen is called anaerobic respiration. ETS (or electron transport chain) reactions happen as the last step of aerobic cellular respiration, therefore it is incorrect. Alcoholic fermentation is a form of anaerobic, except it produces alcohol, so this answer choice is incorrect. Hope this helps! :)

Mangrove forests were traditionally viewed as unhealthy, unproductive environments.

True or False

Answers

The given statement is True.

Traditionally mangrove forests were considered as unproductive and unhealthy environments. Therefore people thought that their removal from the environment will make the environment healthy. Traditionally they were viewed as unhealthy and unproductive because there importance ere not known at that time. But now mangroves serves as a breeding ground for fishes and helps the fisherman to grow economically.

Answer:

ITS TRUE

Explanation:

If an area has all the wolves that it can support, the wolf population has reached its ______?

Answers

The wolf population  in that area has reached its carrying capacity. 

If an area has all the wolves that it can support, the wolf population has reached its carrying capacity.

Carrying capacity refers to the maximum number of individuals that a population has in a given area.

Carrying capacity depends on different types of limiting factors such as food availability.

Limiting factors can be biotic (organisms) and abiotic (non-living part) factors.

In conclusion, if an area has all the wolves that it can support, the wolf population has reached its carrying capacity.

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The human nervous system is broken up into central and peripheral parts. The central system (CNS) is made up of _____.
a. the brain and the spinal cord
b. sensory and motor neurons
c. the brain and motor neurons

Answers

The brain and spinal cord; a. They are the main structures when considering the whole of the nervous system.

Answer:

the brain and spinal cord

Explanation:

Lamarck's hypothesis of evolution was based on which theory?

Answers

He believed in the theory of acquired characteristics.

Answer:

Lamarck's hypothesis of evolution was based on the theory of 'Inheritance of acquired character'.

Explanation:

Lamarck was french biologist and explained evolution on the basis of the theory of inheritance of acquired character.

According to Lamarck, organism can pass down the their characters to their offspring that have acquired through the environment by the use and disuse of an organ. Lamarck believe that the organism may acquire a character by the use and disuse of a particular organ. The acquired trait may pass down to the next generation through reproduction. The transmission of characters increases the organism's complexity.

Sam munches on some almonds. Identify the food group to which almonds belong.
fruits
milk products
meat and beans
vegetables

Answers

The best and most correct answer among the choices provided by your question is the third choice.

The almonds belong to the meat and beans food group.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Correct answer choice is:

C. Meat and beans.

Explanation:  The meat and beans food group comprise of meat, fish, chicken, nuts, seeds, eggs, and dried beans.

Which plant cell organelle uses light energy to produce sugar?
A)
chloroplast
B)
mitochondria
C)
nucleus
D)
ribosome

Answers

A. Chloroplast is the answer
That would be, A) chloroplast 

Trichodesmium is a nitrogen-fixing cyanobacteria. Why might this cyanobacteria be important to other organisms in nitrogen-poor waters?
They convert atmospheric nitrogen (N2) to organic compounds including ammonia (NH3).
They convert inorganic nitrogen to ammonia (NH3) in the ocean.
They convert organic nitrogen compounds to into other nitrogen compounds. They convert nitrates from the water into nitrogen gas (N2) that is released into the atmosphere.

Answers

Answer: They convert atmospheric nitrogen (N₂) to organic compounds including ammonia (NH₃).

Trichodesmium is cyanobacteria which converts atmospheric nitrogen into ammonia which is then used by other organisms present in the nitrogen poor water. They are found in the nutrient poor tropical and sub tropical ocean waters .They account for approximately half of the nitrogen fixation in marine system all over the world.



Final answer:

Trichodesmium is important to other organisms in nitrogen-poor waters because it converts atmospheric nitrogen into ammonia, providing an essential nutrient that supports marine life and maintains the nitrogen cycle in these regions.

Explanation:

Trichodesmium is a nitrogen-fixing cyanobacteria that plays a critical role in marine ecosystems, particularly in nitrogen-poor waters. As a diazotroph, this colonial cyanobacteria can convert atmospheric nitrogen (N₂), which is abundant but unusable by most organisms, into ammonia (NH₃), a form of nitrogen that is readily available for use by plants and phytoplankton. This process is crucial for supporting life in regions of the ocean where inorganic sources of nitrogen are scarce, as it helps maintain the nitrogen cycle and supports the base of the food web.

In nitrogen-poor waters, organisms depend on nitrogen fixers like Trichodesmium to contribute to the primary productivity of the ecosystem. The fixed nitrogen provided by Trichodesmium is essential for the synthesis of amino acids, nucleic acids, and other vital organic compounds within marine organisms. Therefore, without such diazotrophic cyanobacteria, many marine ecosystems would struggle to thrive due to the lack of accessible nitrogen.

Hence, the correct answer is they convert atmospheric nitrogen (N2) to organic compounds including ammonia (NH3).

A------------ is each step in a food chain that demonstrates the transfer of energy.

Answers

A trophic level is each step in a food chain that demonstrates the transfer of energy.

A trophic level is any feeding level in a food chain through which energy in the form of food is transferred in an ecosystem. A food chain contains five main trophic levels which are; (i) primary producers (autotrophs; plants and algae), (ii) primary consumers (herbivores), (iii) Secondary consumers (carnivores and omnivores), (iv) Tertiary consumers (carnivores and omnivores) and (v) Apex predators.

Final answer:

A 'trophic level' refers to each step in a food chain, showcasing the energy transfer from one organism to another. The energy transfer starts with the Sun and travels through different organisms, from producers to consumers, providing an understanding of a food chain.

Explanation:

In the field of Biology, each step in a food chain, demonstrating the transfer of energy from one organism to another, is referred to as a trophic level. This energy transfer begins with the Sun, which provides energy to producers like plants. Herbivores, or primary consumers, consume these plants and gain energy.

Then, carnivores, or secondary and tertiary consumers, eat these herbivores and other carnivores to get energy. The energy transfer continues through each trophic level, demonstrating the concept of a food chain.

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A soccer player has been sprinting up and down the field. She is breathing very hard and has a burning sensation in her muscles. Which of the following is the most likely cause of her symptoms?

A. Muscles are getting rid of carbon dioxide by the Krebs cycle.
B. Muscles are building up lactate from anaerobic respiration.
C. Electron transport chains in the mitochondria are producing too much ATP.
D. Glycolysis is producing too much pyruvate from the high glucose levels in the body.

Answers

The correct answer to this question is B. Muscles are building up lactate from anaerobic respiration

Answer:

B. Muscles are building up lactate from anaerobic respiration.

Explanation:

During excessive physical activities such as sprinting,  muscles carry out anaerobic respiration to compensate the need of ATP for their continuous contraction. It is done since oxygen availability can not meet the increased demand of ATP during excess physical activities. Anaerobic respiration in muscles converts pyruvate into lactate which in turn causes burning sensation in muscles.  Hence, her symptoms are due to increased oxygen demand and buildup of lactate in muscles.

What are CD4+ cells?




A.

HIV treatment cells


B.

immune cells that are destroyed by HIV


C.

an experimental AIDS vaccine


D.

opportunistic cells that destroy the immune system

Answers

The answer is B.  immune cells that are destroyed by HIV 

CD4+ are immune cells (white blood cells) and are an important part of the immune system. Their name comes from the presence of CD4 glycoprotein on their surface. HIV uses CD4 glycoproteins on the surface of CD4+ cells to entry into the cells. The consequence is a reduced number of those cells. Therefore, CD4+ immune cells are destroyed by HIV.

What would happen if our atmosphere consisted of pure oxygen?

Answers

Well too much oxygen can kill humans which is one. And 2 If the whole atmosphere was oxygen then things will burn easily.
You mean, biologically? There would be no life, at least not as we know it. Plants need carbon dioxide. I suppose an ecosystem composed entirely of animals might be possible. But animals produce CO2, methane, and a host of other off-gases. So your hypothetical planet would be populated by things very different from us. 


What is the function of an antibody in an antigen-antibody response?









A.

to remove the DNA of the antigen








B.

to enclose the antigen in a protective shell








C.

to help immune cells identify and destroy a pathogen








D.

to ingest and digest the antigen

Answers

C.) to help immune cells identify and destroy a pathogen

Hope this helps!

The large ground finch obtains food by cracking seeds. What is its short, strong beak an example of?

Answers

Final answer:

The large ground finch's short, strong beak is an adaptation resulting from natural selection and adaptive radiation, allowing it to crack hard seeds effectively.

Explanation:

The short, strong beak of the large ground finch Geospiza magnirostris is an example of adaptive radiation and natural selection. Through processes described by Charles Darwin, finches on the Galápagos Islands have adapted their beaks over generations to exploit different food sources effectively. For the large ground finch, its beak has evolved to crack open hard seeds, making it thicker and stronger compared to finches that eat other types of food, like insects or nectar.

Observations by researchers such as Peter and Rosemary Grant provide evidence for this evolutionary change. They reported that during a drought, finches with larger beaks could eat more types of seeds, and hence were more likely to survive. Their offspring also tended to have larger beaks, showing evolution by natural selection.

What role do microtubules play during mitosis?
A. microtubules line up chromosomes at the equator of the cell during metaphase
B. microtubules play a role in the disassemble and reassembly of the nuclear membrane
C. microtubules play a role in the formation of the cell plate when plant cells undergo cell division
D. microtubules play a role in the migration of chromosomes to opposite ends of a dividing cell during anaphase

Answers

microtubules play a role in the migration of chromosomes to opposite ends of a dividing cell during anaphase.

Answer:

Microtubules play a role in the migration of chromosomes to opposite ends of a dividing cell during anaphase. (Ans. D)

Explanation:

In mitosis after the metaphase stage, anaphase stage occurs where replicated chromosomes are divide and the copied chromosomes migrate to the opposite poles of the cell.

In anaphase stage two phases are occurs:

Anaphase A: In this phase chromosome moves to pole of a dividing cell, this movement is produced by the action occurs in kinetochores and a subclass present in microtubules present in kinetochores are known as kinetochore microtubules.

Anaphase B: In this phase separation of dividing cell poles from each other is occurred. This movement is produced by the action of inter-polar microtubules and astral microtubules.

When NADH passes its electrons into the Electron Transport System, NADH is chemically:

reduced

enzymized

hydrolysed

oxidized

Answers

Answer:

Option D, oxidized

Explanation:

The NADH gets oxidised when it passes its electrons into the Electron Transport System

Oxidization is a process in which one element or compound loses its electron to other chemical element or compound thereby itself getting oxidised and reducing the other one (the one who gains the electron).

Here in the electron transport system, the NADH loses or donates its electron to the Electron Transport System thus chemically it gets oxidized.

Hence, option D is correct

Can you ZOOLEY??? Ive attached a file.

Answers

Yes you can ZOOLEY anyone can if they try.

Yes, I can ZOOLEY.

What is ZOOLEY?

ZOOLEY is a logic puzzle that involves figuring out which animals inhabit various areas of a zoo. The puzzle is presented as a map of the zoo, with the cages arranged in two rows, separated by an aisle or corridor. The animals live in cages, and their names are represented by a combination of letters and shapes.

To solve the puzzle, you need to use the clues given to you to figure out the names of the animals. For example, the clue "Which family is visiting the polar bears?" tells you that the family of people (Zuff) is visiting the polar bears (Trick).

Here are the answers to the ZOOLEY puzzle:

What family is visiting the polar bears? Zuff

What kind of family are they? Humans, they are outside the cages observing other animals.

Whose family is the largest? Kazoo

Which is the family of spiders? Lesger, spiders have 8 legs

Whose son has Mr Crocodile just swallowed? Breeze's son was swallowed. Thus, gobble are crocodiles and gender of each animal is designated by shape

Which swimming family has only 3 sons? Squeal. Note flipper and name similarity (ie. seal – squeal)

Which family has just 3 daughters? Lesger, spiders.

Is the polar bear's cub male or female? male.

Which family has no offspring? Slizz, there are only adults in the cage

Which is a family of snakes? Slizz, see lines similar to shape of snake

Which is a kangaroo? Swift, see pocket on side of female

What is the surname of the elephant's baby, which is soon to be born? Ample, see baby inside female, not a gobble because a male is inside a male.

How many sons has Mr. Giraffe? no sons. Noz are giraffes due to long legs

Which family has no father? Squeal

Which mother is away at the hospital? Noz, no female is in the cage

Who are the neighbours of the monkeys? Trick, they are polar bears. The monkeys are kazoo

A wee pelican has wandered into whose cage? Gobbles. this wee animal proves to be a pelican

Which is a family of pelicans? Beeze.

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Which of the following is NOT true about ATP?


glucose breaks down into ATP without any initial energy input. (It just spontaneously happens)


Energy is stored in the bonds of the phosphate group


cells make and use ATP


ferns, slime molds, dogs, and fish all use ATP for energy in the cells

Answers

A option i.e; glucose breaks down into ATP without any initial energy input. (It just spontaneously happens) does not make sense to make while all other are correct. So, the best option will be the A. because A option is not true about ATP.

The irispupilscleracornea is the opening which allows light to enter the eye.

Answers

The pupil allows light into the eye. It opens and closes with different levels in light in order to both adjust your vision to see better in the amount of light and to protect from too much light.

The Calvin cycle happens in the ___________ of the chloroplast.

Answers

Light Independent Reaction:)
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