Biology College

Why does a plant cell have a fixed shape and an animal cell does not?
The cell membrane of a plant cell is surrounded by a cell wall.
O Plant cells have larger vacuoles than animal cells.
O The process of photosynthesis causes plant cells to have a rigid shape.

Answers

Answer 1

Answer:

it is because a plant cell is surrounded by a cell wall

Related Questions

Which of the following show similarities between organelles and organs of the body?

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Answer:

Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.

Explanation:

What is the difference between a producer and a consumer? (Select all that apply.)

Consumers convert sunlight energy into fuel and producers cannot.

Producers convert sunlight energy into fuel and consumers cannot.

Consumers can make their own food energy and producers cannot.

Producers can make their own food energy and consumers cannot.

Answers

Answer:

B & D

Explanation:

Producers make

Consumers eat/use producers and/or what they make

Hope its right :)

The difference between a producer and a consumer is producers convert sunlight energy into fuel and consumers cannot and producers can make their own food energy and consumers cannot. Thus, option B and D are correct.

Who is considered as producer?

All green plants which prepares their own food is considered as the producers. Decomposers are usually defined as as those organisms which converts the complex organic matter into simpler ones, hence consuming the required amount needed and liberating the left over to the environment.

The cycle goes on and helps in maintaining a state of between the living and the decaying particles and the producers, consumers and the decomposers are interdependent on each other.Consumers convert sunlight energy into fuel and producers cannot.

So, it can be concluded that, after the death of an organism (consumer), some amount of energy is consumed by the decomposers and the remaining is mixed with the environment.

Therefore, The difference between a producer and a consumer is producers convert sunlight energy into fuel and consumers cannot and producers can make their own food energy and consumers cannot. Thus, option B and D are correct.

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Help help help help buissness

Answers

Explanation:

B . Pa brainlist hope it helps I'm new here

What causes STI's & how are they transmitted?

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Answer

I think the cause would be unprotected sex and well that would also be how its transmitted.

Explanation:

All sugars are considered:

a carb

a fat

just sugars

a lipid

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Answer: fat......................................

All sugars are considered as fat.

the components of every food chain are

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Answer:

Explanation:

A food web consists of several components; primary producers, primary consumers, secondary consumers, tertiary consumers, and so on. Primary producers include green plants and are the foundation of the food web.

Answer:

hope the above picture helps

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Which of the following correctly lists functions of
proteins?

Answers

Explanation:

The correct answer is providing structure, regulating cell processes and creating movement

HELP !!!!!!!!! IM SOOO CONFUSED

Different leads are used to measure the ECG because

Select one:

a.

measurement of heart rate depends on which lead is used to measure it

b.

the signal has a larger amplitude on some leads so it is easier to measure

c.

it is easier to attach some leads to the patient

d.

the interval between ECG events differs on the different leads

e.

they provide information on the spread of the heart beat and to help diagnose which areas of the heart are affected by pathology

Answers

Answer:

Explanation:

they provide information on the spread of the heart beat and to help diagnose

In order for mutations to be passed to offspring in sexually reproducing organisms, the
mutation(s) must occur in sex cells. Why is this NOT true for bacteria like Staphylococcus?
Choose one or more:

Answers

Answer:

Bacteria can evolve quickly because they reproduce at a fast rate. Mutations in the DNA of bacteria can produce new characteristics and that the bacterium will grow better than its neighbors and can increase in numbers..

Explanation:

N/A

I’m sick of my parents I want a sister

Answers

Righttttt exactly im saying

Describe the ovary of the flower

Answers

Explanation:

Enlarged basal portion of the pistil, the female organ of a flower. The ovary contains ovules, which develop into seeds upon fertilization.

A rainforest is an example of a

Answers

Answer:

tropical moist broadleaf forest

Answer:

It could be a rainforest biome, forest, or habitat

Explanation:

A little explanation or expanding could help for a more specific answer. Thank and rate plz.

N2 is the chemical formula
for what compound?
A. Ammonium
B. Nitrogen gas
C. Nitrite acid

Answers

Answer:

B. Nitrogen gas

Explanation:

Match the materials below to the BEST option describing their place in the cycles of photosynthesis and cellular respiration.

Some options may be used more than once or not at all.

Answers

1b, 2b, 3a, 4c, 5d, 6g, 7e, 8h

In Culinary class, Jennifer roads a recipe that noods wited spinach and decides to use salt to propare the leaves. She places the spinach in a solution of 8% salt, which causes the plant cols to shrink
since they normally have an internal salt concentration of 0.9% salt. Which statement best explains why the cells shrink?
Sall causes the cell membrane to swet and absorb water trom the cytoplam
Sat moves from the 8 sal solution into the cell and chemically bind with water
Water moestrom the cell through the cell membrane to an area of lower water concentration
O Water moves from a lower concentration of water in colis cytoplasm into the nucles and colorganelles

Answers

The cell shrinks because of the movement of water away from the cell into the more concentrated salt solution.

Osmosis is the movement of water from one region to another through a semi - permeable membrane. A hypertonic solution contains more solute than the cell.

In this case, the external salt solution is hypertonic because it contains a 8% salt concentration whereas the cell contains only a 0.9% salt concentration. As such, water moves out of the cell into the solution.

The cell shrinks because of the movement of water away from the cell into the more concentrated salt solution.

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Which instruments has indefinite pitch

Answers

Instruments of indefinite pitch exist by the hundreds. Some of the more common ones are the snare drum, tenor drum, tom-tom, bass drum, bongos,

Which sentence correctly uses commas to separate phrases? The cooking class will teach us how to, grill fish, bake a pie, and make ice cream the mouth test will include the one word problem, one pair one graph and 10 questions. I spend my free time reading books, watching tv, and playing video games. Staying for involves eating healthy foods, staying active and, sleeping well

Answers

Answer:

the first one

Explanation:

Does the light independent pathway of photosynthesis continue to occur when the leaf disks are placed in the dark environment

Answers

Does the light independent pathway of photosynthesis continue to occur when the leaf disks are placed in the dark environment?

Answer: Does the light independent pathway of photosynthesis continue to occur when the leaf disks are placed in the dark environment.

In plants, carbon dioxide (CO2) enters the leaves through stomata, where it diffuses over short distances through intercellular spaces until it reaches the mesophyll cells. Once in the mesophyll cells, CO2 diffuses into the stroma of the chloroplast, the site of light-independent reactions of photosynthesis.

Yes, the light independent pathway of photosynthesis continues to occur when the leaf disks are placed in the dark environment.

What is photosynthesis?“The process by which green plants make their own food in presence of sunlight, chlorophyll and carbon dioxide is called photosynthesis.”In this process oxygen molecule is released as by product.

It has two pathways: light dependent and light independent.

In light dependent pathway, light energy is used by chlorophyll and is converted into chemical energy.In light independent pathway, the energy produced during light dependent pathway is used to convert carbon dioxide into carbohydrates. It occurs in the stroma of the chloroplast.

Hence, it is true that the light independent pathway of photosynthesis continues to occur when the leaf disks are placed in the dark environment.

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All living things have internal that helps them carry out basic functions.

Answers

true

................................

Answer:

True

Explanation:

By the end of grade 2. All organisms have external parts. Different animals use their body parts in different ways to see, hear, grasp objects, protect themselves, move from place to place, and seek, find, and take in food, water and air. Plants also have different parts (roots, stems, leaves, flowers, fruits) that help them survive, grow, and produce more plants.

By the end of grade 5. Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (Boundary: Stress at this grade level is on understanding the macroscale systems and their function, not microscopic processes.)

By the end of grade 8. All living things are made up of cells, which is the smallest unit that can be said to be alive. An organism may consist of one single cell (unicellular) or many different numbers and types of cells (multicellular). Unicellular organisms (microorganisms), like multicellular organisms, need food, water, a way to dispose of waste, and an environment in which they can live.

Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell. In multicellular organisms, the body is a system of multiple interacting subsystems. These subsystems are groups of cells that work together to form tissues or organs that are specialized for particular body functions. (Boundary: At this grade level, only a few major cell structures should be introduced.)

By the end of grade 12. Systems of specialized cells within organisms help them perform the essential functions of life, which involve chemical reactions that take place between different types of molecules, such as water, proteins, carbohydrates, lipids, and nucleic acids. All cells contain genetic information in the form of DNA molecules. Genes are regions in the DNA that contain the instructions that code for the formation of proteins, which carry out most of the work of cells.

Multicellular organisms have a hierarchical structural organization, in which any one system is made up of numerous parts and is itself a component of the next level. Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Outside that range (e.g., at a too high or too low external temperature, with too little food or water available), the organism cannot survive. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system.

A central feature of life is that organisms grow, reproduce, and die. They have characteristic structures (anatomy and morphology), functions (molecular-scale processes to organism-level physiology), and behaviors (neurobiology and, for some animal species, psychology). Organisms and their parts are made of cells, which are the structural units of life and which themselves have molecular substructures that support their functioning. Organisms range in composition from a single cell (unicellular microorganisms) to multi-cellular organisms, in which different groups of large numbers of cells work together to form systems of tissues and organs (e.g., circulatory, respiratory, nervous, musculoskeletal), that are specialized for particular functions.

Special structures within cells are also responsible for specific cellular functions. The essential functions of a cell involve chemical reactions between many types of molecules, including water, proteins, carbohydrates, lipids, and nucleic acids. All cells contain genetic information, in the form of DNA. Genes are specific regions within the extremely large DNA molecules that form the chromosomes. Genes contain the instructions that code for the formation of molecules called proteins, which carry out most of the work of cells to perform the essential functions of life. That is, proteins provide structural components, serve as signaling devices, regulate cell activities, and determine the performance of cells through their enzymatic actions.

what is the answer for 5.6÷16 answer quik

Answers

here: 5.6 ÷ 16 = 0.45

PLEASE HELP
How are the waste products of respiration removed?
(SELECT ALL THAT APPLY)

A) Food waste moves from the digestive system to the cardiovascular system.

B) Carbon dioxide is removed by respiratory organs.

C) The cardiovascular system transports waste products from cells to other systems.

D) Oxygen molecules are removed by the cardiovascular system.