BIOLOGY COLLEGE

Describe how an allosteric enzyme works.

Answers

Answer 1
Answer:

Answer:

Allosteric enzymes bind at different site from the substrate binding site.

Explanation:

The activities of some enzymes, particularly those which form a part of a chain of reactions like metabolic pathways, are regulated internally. Some specific low molecular weight substances such as the products of another enzyme further on in the chain, acts as the inhibitor. Such a modulator substance binds with a specific site of the enzyme different from the substrate binding site. This binding increases or decreases the enzyme action. Such enzymes are called allosteric enzymes and the site at which they bind is called allosteric site.

Example: Hexokinase is an enzymes which converts glucose to glucose-6-phosphate in glycolysis. Decline in the enzyme activity by the allosteric effect of the product is called feedback mechanism, like the allosteric inhibition of hexokinase by glucose-6-phosphate,

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How many kinds of mosquito are common in Nepal l​

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Explain the term “soil profile” (needs to be a paragraph)

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Answer:

A soil profile is a vertical section of soil

Explanation:

Select all that apply.Viral infections can be transmitted by:

coughing
sneezing
insect bites
contaminated water
direct contact

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Answer:

Explanation:

all of them

The table in Figure 12–3 shows the results of measuring the percentages of the four bases in the DNA of several different organisms. Some of the values are missing from the table. Based on Chargaff’s rule, the percentages of thymine bases in chicken DNA should be aroundA. 28.8%.
B. 19.9%.
C. 21.5%.
D. 13.4%.

Answers

The correct answer to this question is letter "B. 19.9%. "

There exists a question on a separate site that shows that table.
The table in Figure 12–3 shows the results of measuring the percentages of the four bases in the DNA of several different organisms. Some of the values are missing from the table. Based on Chargaff’s rule, the percentages of thymine bases in chicken DNA should be around 19.9%

Which of the following statements is true of chemical bonds?Both ionic and covalent bonds involve electrons in the innermost shell.
Covalent bonds share electrons between two atoms.
An atom involved in an ionic bond has an equal number of electrons and protons.
Salts are covalently bonded.
The atoms in a molecule of water (H2O) are bonded together with ionic bonds.

Answers

The true statement of chemical bonds is covalent bonds share electrons between two atoms.

  • A covalent bond is a type of interaction that involves one or more pairs of electrons (e-) being shared between two atoms.

  • In a covalent bond, shared electrons are jointly attracted by both atomic nuclei.

  • A double covalent bond occurs when four electrons are shared between two atoms, whereas a triple covalent bond involves the sharing of six electrons.

  • An ionic bond is when one atom gives its electron to another atom, e.g., during the formation of sodium fluoride.

In conclusion, covalent bonds share electrons between two atoms.

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Covalent bonds share electrons between two atoms.

Which of these fields of study would be the most useful for someone whowants to examine the effects of deforestation on native species?
A. Ecology
B. Chemistry
C. Meteorology
D. Geophysics

Answers

Ecology, the definition of ecology is most summed up by studying organisms and their surrounding and how it effects them
The answer will be A. Ecology
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