what is a cell wall and what are its functions ​

Answers

Answer 1

Answer:

a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.

Explanation:

i hope this helps!


Related Questions

6.
Examples of molecules that can cross cell membranes by simple diffusion include
1. water.
m. oxygen.
n. carbon dioxide
0. all of the above

Answers

i think it’s all of the above all those can cross cell membranes

how is groundwater impacted by urban sprawl?

Answers

Answer:

Urbanization causes changes to the land surface by altering to- pography and vegetation, increasing shallow groundwater tempera- tures.

raising or lowering water tables, and extraction of groundwater during or after construction.

Explanation:

Have A great one!

List some animals affected by soda cans and plastic bottles

Answers

Answer:

turtles, fishes, birds, whales, cats, dogs, really any animal can be affected

Explanation:

(any animal in the ocean) mark as brainliest plz

Are axolotl prokaryotic

Answers

Answer:

The axolotl, Ambystoma mexicanum, also known as the Mexican walking fish, is a neotenic salamander related to the tiger salamander. Although colloquially known as a "walking fish", the axolotl is not a fish but an amphibian. The species was originally found in several lakes, such as Lake Xochimilco underlying Mexico City. Axolotls are unusual among amphibians in that they reach adulthood without undergoing metamorphosis. Instead of developing lungs and taking to the land, adults remain aquatic and gilled.

Explanation:

Answer:

prokaryotic

Explanation:

I just took the test!

A student was asked the following question on her biology final exam
question : how do organisms grow in size
her answer : “organisms grow in size when the cells within the organism grow larger. As the cells grow larger the organism grows larger as well
Explain why her answer is not correct then explain how she should have answered the question

Answers

The cell can grow large but not the organisms. Once the cell is growing the organisms grow smaller. I think hope it correct

A vacuum cleaner helps collect waste that is left behind on the floor. Some vacuum cleaners even suction up liquids. The vacuum cleaner could represent which organelle in the cell?​

Answers

Answer:

lysosome

Explanation:

It deals with food, and like a vacuum, stores things

A vacuum cleaner helps collect waste that is left behind on the floor. Some vacuum cleaners even suction up liquids. The vacuum cleaner could represent lysosomes.

What is lysosomes?

Lysosomes are defined as membrane-enclosed organelles containing a variety of enzymes capable of degrading all sorts of biological polymers, including proteins, nucleic acids, carbohydrates, and lipids.

It can also be defined as sphere-shaped vesicles or sacs containing hydrolytic enzymes capable of breaking down nearly all types of biomolecules.

Lysosomes are hydrolytic enzyme-containing cell organelles. Hydrolytic enzymes can degrade undesirable cell components such as proteins, lipids, and carbohydrates, resulting in cell waste.

Vacuum cleaner is defined as a suction device used to remove dirt off floors, upholstery, drapes, and other surfaces It is usually powered by electricity.

Thus, a vacuum cleaner helps collect waste that is left behind on the floor. Some vacuum cleaners even suction up liquids. The vacuum cleaner could represent lysosomes.

To learn more about lysosomes, refer to the link below:

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HELPPPPPPPP MEEEEEEEEE PLZZZZZZZZ

Answers

Answer:

hi

Explanation:

Answer:

What do you need help with?

Algae can grow out of control when too many nutrients containing ______ and _______ enter the water.

phosophorus and nitrogen
carbon dioxide and oxygen
protein and sugars

(This is 7th grade science)

Answers

Answer:

Phosphorus and nitrogen

Phosphorus and nitrogen is the answer

What determines which bases will be brought to the DNA strand during DNA replication?

Answers

Answer:
Replication relies on complementary base pairing, that is the principle explained by Chargaff's rules: adenine (A) always bonds with thymine (T) and cytosine (C) always bonds with guanine (G).

HELP ASAP
Joe is experimenting to determine which liquid will cause bean plants to grow faster. He watered the plants with equal amounts of liquid and measured their height every other day. The plants are in the same pots with different soils and placed in the same location. Will Joe be able to obtain reliable data to write a supported conclusion?
Yes, because he is only observing the height of the plant.
Yes, because he is consistent with watering the plants.
No, because he used different soils.
No, because he uses only one type of plant.

Answers

Answer:

No, because he used different soils.

Explanation:

which liquid will cause bean plants to grow faster.

He watered the plants with equal amounts of liquid and measured their height every other day.

The plants are in the same pots with different soils and placed in the same location.

Ok so last statement made the experiment wrong.

As a constant variable the soil should be the same for all plants only the liquid should change

What happens to the sugars that are made during photosynthesis?

Select one:
a.
They can be used for cellular respiration.
b.
They make ATP by bonding together.
c.
They go back into the Calvin cycle.
d.
They move directly into an electron transport chain.

Answers

Answer:

They can be used for cellular respiration

D. They move directly into an electron transport chain

What type of bonds connect the sugars to phosphates and the sugars to bases? Weak or strong?
What type of bond connects a base to a complementary base in a base pair? Weak or strong?
What type of bond connects a base to a complementary base in a base pair? Hydrogen or Covalent?

Answers

Answer-

All the bonds are hydrogen bonds  and this bond is strong

The process of differentiation produces O A. new cells O B. specialized cells O C. stem cells ОО O D. prokaryotic cells​

Answers

Answer:

the answer to this question is C

Explanation:

hope it helps

What are 3 lines of evidence that corroborate the theory of evolution?

Answers

Answer:

Lines of Evidence supporting theory of evolution by natural selection: Fossil evidence, Biographical evidence and Anatomical evidence.

Explanation:

I majored in Biology

What are the three main classifications that describe galaxies? By what one visible
characteristic do scientists categorize galaxies?

Answers

Answer:

Spiral Galaxies, Elliptical Galaxies  & Irregular Galaxies

Explanation:

How did galaxies originate? Astronomers believe that after the big bang, the explosion which began the universe 10 billion to 20 billion years ago, gravity began to compress masses of free-floating gas. Two main theories, bottom-up and top-down, explain what happened next. According to bottom-up theories, clusters began to form and assembled together into the larger units we know as galaxies. Top-down theories suggest that galaxies formed first, and the stars and other objects within them were subsequently produced. They categorized different galaxies to maintain their tests from the other galaxies.

6. A characteristic common to both diffusion and active transport is that
the movement of molecules occurs
energy is needed
oxygen is moved across a membrane
O
molecules move from low concentration to high concentration

Answers

Answer:

oxygen is moved across a membrane O, cause the others are untrue.

a
A stone 'X' of mass 2 kg is at the height of 2 m from the ground level
Another similar stone 'Y' of mass 4 kg is at the height of 4 m from the ground
level. What is the difference between their potential energy?
un minutes Calculate​

Answers

Answer:

120 joule.

Explanation:

Given

For the stone X

Mass (m) = 2 kg

Height (h) = 2 m

Acceleration due to gravity (g) = 10 m/s²

Then we have the formula to calculate the potential energy

P.E 1 = mgh

= 2 * 10*2

= 40 joule

Now for Stone Y

mass (m) = 4 kg

height (h) = 4 m

acceleration due to gravity (g) = 10 m/s²

Now

P. E2 = mgh

= 4 * 10* 4

= 160 joule

Now the difference between their potential energy is

= P. E2 - P. E 1

= 160-40

= 120 joule

Hope it will help you :)

Which of the following is a
mechanical wave?
A. Sound
B. Light
C. Radio
D. Gamma Rays

Answers

It’s A. Let me know if you need a definition
Sound is a mechanical wave

Mallory has four aquatic plants

Answers

Answer:

that is really good for her

Explanation:

hope she is fine and healthy

what RNA nitrogen bases match with the following DNA nitrogen bases?

Answers

While DNA has the ATCG nitrogenous bases, RNA replaces thymine with uracil, making its bases AUCG. So, that means that whenever DNA has adenine, instead of pairing this with thymine, RNA will use uracil instead.

what is a global fire

Answers

Answer:

a wild fire of a spreading fire that reaches a global span

Explanation:

Fireeeeeeeeeeeeeeeee

The cell membrane is a lipid bilayer but a cell has only one membrane. which organelles in this lesson have a double membrane?
((chapter 16 lesson 2) Miller & Levine Experience biology the living earth founations workbook)

Answers

Answer:

The mitochondria have a double membrane. They help in respiration.

Explanation:

PREDICT Pangolins share many characteristics with different types
of animals. How do scientists determine the evolutionary
relationships between different organisms?

Answers

Answer:

scientists can determine the evolutionary relationships between different organisms by comparing their appearances, figure, and body internal and external structures.

Explanation:

Scientists utilize DNA to evaluate evolutionary relationships, along with resemblance in early development and bone structure.

What are evolutionary relationships?

Organisms with similar physical characteristics and genetic sequences are more strongly linked than those that do not.

Homologous structures are components that overlap both anatomically and genetically; the similarities stem from shared evolutionary paths.

Thus, scientists utilize DNA to evaluate evolutionary relationships, along with resemblance in early development and bone structure.

For more details regarding an evolutionary relationship, visit:

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Describe the effects of estrogen on
the developing female reproductive
system.

Answers

Answer:

In females, estrogens affect the ovaries, vagina, fallopian tubes, uterus, and mammary glands. In the ovaries, estrogens help to stimulate the growth of the egg follicle; they also stimulate the pituitary gland in the brain to release hormones that assist in follicular development.

which of these characteristics of all three main groups of worms? check all that apply

a. they lack nerve cells

b. they can reproduce sexually

c. they display bilateral symmetry

d. they have a single tissue layer

e. they are invertebrates

PLEASE HELP ASAP IM TIMED

Answers

The answer to this question is B.

B, C, and E.

Brainiest if correct? Thanks!

In a meeting, the presiding officers would like to convince the group on the
importance of a certain mandate but the group seems too passive about it.​

Answers

Answer: Brainstorming meeting

Explanation:

In the brainstorming meeting the agenda of the meeting is put forward. The diverse knowledge, skills, opinions, and background are valued in such meeting. The participants may have distinct opinions and it becomes uneasy to convince the group by the presiding officers. The group members can be passive about the mandate as they may have different perceptions and ideas to tackle a matter.

Explain why a diet consisting primarily of animal
based proteins has a larger environmental impact
than a plant based diet.
help I need this by 1:45 :’)

Answers

Plant-based diets provide well-established physical and environmental health benefits. These benefits stem in part from the degree of restriction of animal-derived foods. Historically, meat and other animal-derived proteins have been viewed as an integral component of athletes’ diets, leading some to question the adequacy of vegetarian or vegan diets for supporting athletic performance. The purpose of this review is to examine the impact of plant-based diets on human physical health, environmental sustainability, and exercise performance capacity. Based on currently available literature, it is unlikely that plant-based diets provide advantages, but do not suffer from disadvantages, compared to omnivorous diets for strength, anaerobic, or aerobic exercise performance. Hope this helps :)

Explain why many plant parts appear green in color?

Answers

Answer:

The chlorophyll inside the plants cells give the plants its pretty, green colour.

It's because of the chlorophyll

I WILL GIVE BRAINLIEST!!!

Cat coat color is an X-linked trait.

Calico cats typically have patches of black, white, and orange on their coats as a result of X-inactivation. Most calico cats are female, but rarely a male calico will be born into a litter.

Which of the following could explain calico coat color in a male kitten?

Choose 1 answer:

(choice A)
A
The male kitten has a genotype of XXY.

(choice B)
B
The male kitten has a genotype of XXX.

(choice C)
C
The male kitten has a genotype of XYY.

(choice D)
D
The male kitten has a genotype of YY.

Answers

Answer:

d)

Explanation:

mark as brainleast and fo-ll-ow me

I couldn’t fit the whole question in so the last two options are

-Natural disasters are so rare that they have not affected human population very much

-Natural disasters are a concern for human, life and property, but there is nothing we can do to predict them or prepare for them

Im honestly going between the first one and the last

Answers

i don’t know if I’m right but I think the first answer “Natural disasters affect human populations”
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