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Anna71 [15]
3 years ago
9

If starch and cellulose are both polymers of glucose, how come people can digest starch but not cellulose?

Biology
1 answer:
Oksi-84 [34.3K]3 years ago
8 0

Explanation:

Cellulose is a structural component of the plant cell wall. It is a polysaccharide consisting of a long linear chain of multiple β - 1, 4 linked glucose units.

Cellulose is difficult for most animals to digest except herbivores because they lack the ability or enzyme to digest cellulose. This enzyme needed is the cellulase which cleave to its β - 1,4 glycosidic bond and hydrolysis it into its constituent molecules (glucose).

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The broadest areas of the plant that absorb the most sunlight are the:
Mashutka [201]

Answer:

Leaves

Explanation:

Plants grow broad leaves to absorb sunlight. This is extremely helpful because this helps plants make food through photosynthesis. Roots don't absorb sunlight. They absorb water and nutrients from the soil and carry it up through the stems. The stems then transports the nutrients throughout the plant.

6 0
3 years ago
Which of the following structures consists mainly of white matter?
Otrada [13]

Answer:

The corpus callosum

Explanation:

The corpus callosum is the largest white matter structure in the brain. It is located beneath the cerebral cortex and it connects the left and right cerebral hemispheres thus enabling communication between them. The corpus callosum is a bundle of nerve fibers, (axon projections) which transmits neural signals.

7 0
3 years ago
A population of mice has black or brown hair. The gene for black hair color (B) is dominant over brown (b). If 16% of the mice a
astraxan [27]
If B and b are the two alleles , B + b = 1 and B ^2 +2 Bb + b ^2 = 1.

If 16% of mice are homozygous black , B ^ 2 =0 .16, meaning B = 0 .4 and b = 1 - 0. 4 = 0 .6 .
Answer = Notice how you don't even need to know that 24% of the mice are heterozygous .
6 0
3 years ago
At which stage is glucose broken into smaller molecules? A. before cellular respiration begins B. during the first stage of cell
Vesnalui [34]

b. the first stage because it could never be in the secound stage

8 0
3 years ago
Read 2 more answers
hematoma is an open injury that occurs whenever a large blood vessel is damaged and bleeds rapidly. TrueFalse You should never r
lisov135 [29]

Answer:

1. Hematoma is an open injury that occurs whenever a large blood vessel is damaged and bleeds rapidly. False

2. You should never remove an avulsion skin flap, regardless of its size. True

3. When possible, ALS providers should administer IV fluid within 3 minutes after the crushing object is lifted off the body. False

Explanation:

1. It is false because, although is true that a hematoma occurs when you have a large blood vessel damaged, i t is a closed injury, not an open one.

2. It is true, you should never remove an avulsion skin flap, regardless of its size. The avulsion may have a serious infection.

3. It is false  because ALS providers should administer IV fluid before the crushing object is lifted off the body.

3 0
3 years ago
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