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SpyIntel [72]
2 years ago
5

Why do plant cells need cell walls? What is it made up of?​

Biology
2 answers:
Furkat [3]2 years ago
6 0

Answer: The cells walls are tough, flexible, and sometimes rigid. And these are perfect for a defense. Plant cells require the cell wall for protection against variations in temperature, high wind speed, atmospheric moisture, among other things. The cell wall is located just outside the cell membrane and it is made up of <u>Cellulose and Peptidoglycan</u>. The “peptide” part of the substance is from short chains of amino acids called peptides. The “glycan” part is long chains of sugars which along with the peptides make up the mesh of the cell wall.

Hope this helped you!

anyanavicka [17]2 years ago
3 0

Answer:

The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. ... Plant cell walls are primarily made of cellulose, which is the most abundant macromolecule on Earth. Cellulose fibers are long, linear polymers of hundreds of glucose molecules.

Explanation: brainliest

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Deoxyribose Glucose Guanine Phosphate Ribose
Sergeu [11.5K]
There is no attached table, so it could not be told precisely which of the four molecules is the DNA. But, it is known that DNA consists of deoxyribose, guanine, and phosphate. 
The base unit of DNA is called a nucleotide. The nucleotide consists of a nucleobase (adenine - A, thymine - T, cytosine - C, and <u>guanine -G</u>), a monosaccharide <u>deoxyribose</u>, and a <u>phosphate </u>group. <span>By knowing this, it is easy to choose which molecule of those is the DNA.</span>
3 0
3 years ago
A hypothesis that is non-falsifiable is what
LekaFEV [45]

Answer: Non-falsifiable hypotheses: Hypotheses that are inherently impossible to falsify, either because of technical limitations or because of subjectivity. E.g. "Chocolate is always better than vanilla." [subjective].

A statement, hypothesis, or theory has falsifiability if it can be proven false by contradicting it with a basic statement or observation.

Hope this helps....... Stay safe and have a Merry Christmas!!!!!!!!!!!!!! :D

Explanation:

6 0
3 years ago
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Drought conditions and thunderstorms can cause ?
Mrac [35]

Answer:

Wildfires

Explanation:

This is because it can easily ignite plants which are not moistened by rain or ignite fuel sources on the ground.

7 0
3 years ago
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The characteristics of the active site microenvironment of an enzyme can be largely independent of individual catalytic mechanis
Valentin [98]

Answer: (1) Providing an optimized orientation of the substrate.

(2) Decreasing the ∆G in reaction.

(3) Excluding excess water.

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*Gotten directly from Quizlet*

8 0
3 years ago
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Contact [7]

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6 0
2 years ago
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