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VARVARA [1.3K]
3 years ago
13

Define cellular respiration, and state where it takes place.

Biology
1 answer:
gogolik [260]3 years ago
4 0

Answer:

Cellular respiration is the oxidation of food substances coupled with the release of energy (ATP). It occurs in the mitochondria of living cells.

b. 38 ATP in animals. In plants 2 ATP.

Anaerobic respiration is one that that takes place in the absence of oxygen while aerobic respiration is one that requires oxygen to take place.

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The instructions for the genetic traits of an organism are directly determined by the
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The answer would be:

B. Sequence of the bases in DNA molecules.

Here is more about your questions:

DNA contain the instructions of the traits of an organism. Most of the organism have the same DNA but what makes each different is the sequence of the DNA. The sequence gives the instructions for the production of amino acid that will produce, which in turn determines what traits will be passed on or manifested by that individual.

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3 years ago
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A scientist observes that, when the pH of the environment surrounding an enzyme is changed, the rate the enzyme catalyzes a reac
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Answer:

A- A pH change can cause the enzyme to change its shape

Explanation:

A rise or fall in the pH of the medium from the optimum of pH 7 usually affect  the  enzymes' active sites  of  and therefore the  shape and  the  rate of enzyme activity.

Assuming  the pH is too low, the enzyme medium becomes acidic;Acidosis. The high Hydrogen ions concentration  interacts with the R-groups of the amino acids moiety of the enzymes, this interaction affects the ionization of the  R-groups, disrupting the ionic bonding holding these R-groups in shape.

This results in loss of the 3-Dimensional shape arrangements of the protein molecule  and therefore of the active sites. Since active sites of  enzymes  determines the specificity of the <u>enzymes substrate- complex </u> to give <u>enzyme-product complex,</u> the catalytic activity of the enzymes decreases, <u>the rate of  reaction decreases,and products formation stops, and the reaction also stops.</u>

The same is applicable to extremely high pH=Alkalosis.

However, the effective buffer system of the body prevents this scenarios from happening in real sense in the body. Through mopping by the  haemoglobin, excretion by the kidney, etc

7 0
3 years ago
Match the word to continue the sentence.
Georgia [21]

Answer:

Explanation:

Nndhhj

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2. Which organelle acts like the “brain” or control center of the cell?
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The organelle that acts like the brain or the control center in the cell in the nucleus.

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Of the following choices, which is the first stage of development that babies reach?
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