Tag: enzymes and hormones

Questions Related to enzymes and hormones

Nongenetic RNA is of

biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

  1. Two types

  2. Three types

  3. Four types

  4. One type

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Correct Option: B
Explanation:

There are 3 types of non genetic RNA's 

  1. mRNA = messenger RNA
  2. tRNA = transfer RNA
  3. rRNA = ribosomal RNA
Correct option B

The metals present in insulin and haemoglobin are respectively:

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. $Zn, \ Hg$

  2. $Zn,\ Fe$

  3. $Co,\ Fe$

  4. $Mg,\ Fe$

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Correct Option: B
Explanation:
Insulin contains zinc and haemoglobin contains Fe. (Iron)

Hence, option B is correct.

Which of following hormone is produced by testis?

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. Progesterone

  2. Estradiol

  3. Testosterone

  4. estrone

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Correct Option: C
Explanation:

Testosterone is produced by testes. Testosterone, which is produced in the body by the male testes, influences men physically, emotionally and sexually. It is called the "king of hormones", testosterone is certainly the most important hormone when it comes to sexual characteristics in men.

Androgens are

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. female sex hormone

  2. non steriod

  3. plant hormone

  4. male sex hormones

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Correct Option: D
Explanation:

Androgens are male sex hormones. The main androgen is testosterone, and an additional androgen is dihydrotestosterone. Testosterone is secreted mainly by the testes, but also a little bit by the adrenal cortex. In some tissues, testosterone is chemically changed into dihydrotestosterone in order to have an effect.

Which of the following is a steroid?

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. Insulin

  2. Vitamins

  3. Cytokinins

  4. Estrogen

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Correct Option: D
Explanation:

Estrogen is a steroid. Estrogens are a group of steroid hormones that control the development and maintenance of an individual's feminine characteristics. Natural estrogens exist in men as well as women, and are found in higher amounts in women, especially in those of reproductive age.

Which bond angle $\theta $ gives maximum dipole moments for triatomic molecule $XY _{ 2 }$ :-

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. $\theta \quad =\quad 90^{ \circ }$

  2. $\theta \quad =\quad 120^{ \circ }$

  3. $\theta \quad =\quad 180^{ \circ }$

  4. Both 2 and 3

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Correct Option: B

Deficiency of insulin in human beings causes:

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. Blood coagulation

  2. Beri Beri

  3. Diabetes

  4. Dermatitis

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Correct Option: C
Explanation:

Deficiency of insulin in human beings causes diabetes.


 Diabetes is a disease in which your blood glucose or blood sugar levels are too high, either because insulin production is inadequate, or because the body's cells do not respond properly to insulin, or both.

Option C is correct.

Point out the wrong statement about proteins.

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. They are nitrogenous organic compounds of high molecular mass.

  2. They on hydrolysis by enzymes give aminoacids.

  3. Many of them are enzymes.

  4. They do not contain polypeptide .

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Correct Option: D
Explanation:

Proteins are nitrogenous organic compounds of high molecular mass which on hydrolysis by enzymes give amino acids. All proteins are enzymes. They do not contain polypeptide but are bonded by peptide linkage.

The Muscular physique of a male is due to the influence of the Hormone is called

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. testosterone

  2. estradiol

  3. progesterone

  4. estrone

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Correct Option: A
Explanation:

The muscular physique of a male is due to the influence of the hormone is called testosterone.
Testosterone is a male sex hormone produced by the testes that encourages the development of male sexual characteristics and stimulates the activity of the male secondary sex characteristics.

The hormone used as an oral contraceptive is:

chemistry biomolecules enzymes and hormones hormones coordination in human beings- chemical control

  1. Aldosterone

  2. Cortisone

  3. Progesterone

  4. Testosterone

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Correct Option: C
Explanation:

The hormone used as an oral contraceptive is progesterone. It is a female sex hormone and used to prevent pregnancy (progestin). 

It works by preventing the release of eggs from the ovaries (ovulation) and changing the cervical mucus and the lining of the uterus.

Hence, the option $C$ is correct.