1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paul [167]
3 years ago
7

Which of the following statements about plant cell walls is true?

Biology
1 answer:
Leya [2.2K]3 years ago
7 0

Answer:

<h2>A </h2>

Explanation:

1. The cell is present in some type of cells. It is found in plants and bacteria and some others. It is present or found outside the plasma membrane.

2. The functions of cell wall are that it provides tensile strength and protection to the cell against many type of stress. It also plays very important role in many others protections for the cell. There are two layer, named as primary cell wall and secondary cell wall.

3. Composition of Plant cell walls is that they are primarily made of cellulose. Cellulose fibers are linear long polymers of around  100 molecules  of glucose. These fibers cluster into bundles, known as  or called microfibrils. In plants the microtubule cytoskeleton are present, and there function is that they directs the orientation of cell wall as  in which orientation cellulose is deposited in the cell wall.

You might be interested in
What is Electron Transport Chain and what happens in that stage of cellular respiration?
irakobra [83]

The electron transport chain (ETC) is the final step of cellular respiration and takes place in the mitochondrion.

  • The final step in cellular respiration is the electron transport chain. This is sometimes abbreviated as ETC. ETC needs oxygen, which means aerobic process. It occurs at the edges of the inner lining of mitochondria. These handles are called cristae.

6 0
2 years ago
At 10 am on june 12 two joggers discover a body along a running path in a park the body is 20 feet from a tree beside the path.
olchik [2.2K]

all of the above should be noted for the coroner. because the authorities are trying to solve a homicide.

6 0
3 years ago
Plz help!!!!<br> Kinda in a hurry to catch up on biology rn anything can help!!!
luda_lava [24]

Answer:

16. Control group: Subject A

17. Independent (manipulated) variable: Type of powder

18. Dependent variable: Itching time

19. Explain whether the data supports the advertisement´s claims about its product. Yes, it does.

Explanation:

  • Control group: The control group is used to identify if there are any other factors influencing the results obtained by the treatment in the study (in this case, the new product), from the results that might be a consequence of other factors. The control group must be selected from the same population as the treatment group. Data from an experimental group are compared with the data from a control group. These two groups are identical in all aspects except for the independent variable that the researcher changes in the experimental group to observe how they affect the individuals.  

The experimental group is the one that receives the experimental procedure, with changes in the independent variable.  There can be several experimental groups. In this case, the experimental group is subject B.

  • Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. In the exposed example, the type of powder is the independent variable.  
  • Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. In the exposed example, inching time is the dependent variable, that depends on the type of powder used.
  • The data <u>does support</u> the advertisement´s claims about its product. The effect of the new product lasts 50% more than the original product. The old powder produced itching for 30 minutes, while the new product produced itching for 45min (15 more minutes, 50% more).
4 0
2 years ago
Which statement best describes cellular resperstion?
pentagon [3]

Answer:

C

Explanation:

Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. Overall, this three-stage process involves glucose and oxygen reacting to form carbon dioxide and water.

8 0
3 years ago
What is the process by which genetic material is copied?
Pepsi [2]
I would think it’s DNA replication
Hope that helped
Sorry if it’s wrong
6 0
2 years ago
Other questions:
  • What is saturns temperature range in the day??
    13·1 answer
  • All the cak trees in a park belong to the same
    8·1 answer
  • Some flowering plants appear to have offspring that have traits that are intermediate between those of the parents. Which type o
    6·2 answers
  • Does the temperature continuously increase as energy is added?
    9·1 answer
  • What is considered to be the “missing Link” in a giraffes evolution?
    15·1 answer
  • 7. You looked at four different plant cells specimen today. Which specimens
    9·1 answer
  • A bacteriophage is a type of virus that inficts only a bacterial host cell. a bacteriophage cant cause disease in humans because
    6·1 answer
  • DESPERATE WILL GIVE BRAINLIST AND THANKS
    8·1 answer
  • When making a salt water solution the salt is the
    9·2 answers
  • The balance or lack of balance between accumulation and wastage is called ________. group of answer choices glacial trough glaci
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!