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NeX [460]
3 years ago
15

PLEASE ANSWER THIS : Does a particular molecule, like vitamin c, always have the same shape? EXPLAIN.

Biology
1 answer:
arsen [322]3 years ago
3 0
They would not have the same shape because they would basically be the same as that particular vitamin. If a vitamin was the same shape as c then it would be vitamin c. Therefore, they would not be the same shape.
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What is the name of the process used by plants to convert sunlight into food?
DerKrebs [107]
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5 0
3 years ago
The kcat for Rubisco is 3 sec-1 How long does it takeone<br> subunit of Rubisco to do one reaction.
bekas [8.4K]

Answer:

A subunit of Rubisco takes approximately 0.33 s to perform one reaction

Explanation:

The kcat it's a kinetic first order constant that related the properties of the enzyme substrate complexes in a mechanisms and represents the overall first order process of the transformation of the substrate-enzyme complex into product.

Also kcat can be seen as the turnover number of an enzyme, representing the maximum number of substrate molecules that the enzyme can transform into product per time unit and per active site.

If the kcat is 3 s^-1, it means Rubisco can catalyse the transformation of 3 substrate molecules per second.

So, the time that takes a single reaction, should be the inverse of kcat.

To see it more clearly, the time needed for a single reaction is the time observed divided by the number of reactions done during that time.

In other words:

3 reactions ----------- 1 s

1 reaction -------------- x

  • x=1 reaction/3 reactions.s^-1 = 1/kcat = 1/3 s ~ 0.33 s

So the time that takes one Rubisco subunit to do one reaction is approximately 0.33 s

5 0
3 years ago
Why is a parent usually a better match for transplanted tissue to a donor than a random individual of the same species?
s344n2d4d5 [400]

Answer: For decreased chances of rejection

Explanation:

The three higly polymorphic MHC 1 genes in human beings are HLA-A, HLA-B and HLA-C.

These determine the compatibility of the organ or tissue in the recipient's body each by the help of many alleles that segregates in a population.

There are very less chances that a random chosen donor will match the a recipient six allele genotype.

This is the reason parent  may be the best donor for organ transplantation or tissue transplantation.

7 0
3 years ago
In a recent murder mystery, a woman died in minutes after consuming cyanide-laced sugar (glucose). Forensic scientists did some
AURORKA [14]

Answer:

<h2>Mitochondria was affected by the poison cellular respiration </h2>

<h3>Hope it helps you </h3>
6 0
2 years ago
Todd's father slipped a disk in his back. Dr. Foster explained to the family that the intervertebral disks are composed of _____
vichka [17]

Answer:

D. Fibrocartilage

Explanation:

In order to understand the question, we need to review the structure of intervertebral discs.

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It forms the central part of the intervertebral disc and consists of mucoid substance.

  • <u>ANNULUS FIBROSUS:</u>

It is composed of encircling layers of fibrocartilage and fibrous tissue surrounding the nucleus pulposus

<u>SLIPPED DISC:</u>

It is characterized by the protrusion of nucleus pulposus through the annulus fibrosus accompanied by the compression of spinal nerves.

Patient may present with loss of sensory sensations or pain or both.

<u>CORRECT ANSWER:</u>

From the above review, the correct answer is <u>D. fibrocartilage</u> as it forms the annulus fibrosus.

5 0
3 years ago
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