Tag: coordination in human beings- chemical control

Questions Related to coordination in human beings- chemical control

The hormone which controls the processes of burning of fats, proteins and carbohydrates and liberates energy in the body is:

  1. Thyroxine

  2. Adrenaline

  3. Insulin

  4. Cortisone


Correct Option: C
Explanation:

Insulin is a peptide hormone produced by beta cells in the pancreas. It regulates the metabolism of carbohydrates and fats by promoting the absorption of glucose from the blood to skeletal muscles and fat tissue and by causing fat to be stored rather than used for energy.

Insulin production and its action in human body are responsible for the level of diabetes. This compound belongs to which of the following categories :

  1. A coezyme

  2. A hormone

  3. An enzyme

  4. An antibiotic


Correct Option: B
Explanation:

hormone is a class of signaling molecules produced by glands inmulticellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour. Insulin is a hormone which are responsible for the level of sugar in blood and hence maintaining the level of diabetes.

Which of the following is a female sex hormone?

  1. Adrenaline

  2. Estrone

  3. Cortisone

  4. Testosterone


Correct Option: B
Explanation:

Estrone is an estrogenic hormone secreted by the ovary.Responsible for female sex development.

The first sex attractant pheromone identified was that of

  1. Cat

  2. Dog

  3. Gypsy moth

  4. Human


Correct Option: C
Explanation:

pheromone is a secreted or excreted chemical factor that triggers a social response in members of the same species. The first sex attractant pheromone identified was that of Gypsy moth.

Which of the following is an antidiabetic drug :

  1. Insulin

  2. Penicillin

  3. Chloroquine

  4. Aspirin


Correct Option: A
Explanation:

Antidiabetic drugs are medicines developed to stabilise and control blood glucose levels amongst people with diabetes. Antidiabetic drugs are commonly used to manage diabetes.

There are a number of different types of antidiabetic drug including:

  • Insulin
  • Pramlintide (Amylin)
  • $GLP-1$ receptor agonists (such as Byetta and Victoza)
  • Oral hypoglycemics (tablets)

The function(s) of oxytocin is/are to :

  1. stimulate the release of milk from the mother's mammary glands when her baby is nursing.

  2. cause the uterus to contract

  3. induce labor

  4. all of the above


Correct Option: D
Explanation:
Functions of oxytocin are: 
(i) It helps uterine muscles to contract and also increases production of prostaglandins
(ii) Sometimes it is given to induce labor if it has not started naturally or it can be used to strengthen contractions to aid childbirth.
(iii) Stimulate the release of milk from the mother's mammary glands.

The hormone which  transport glucose from blood tissue is

  1. glucogen

  2. insulin

  3. throxin

  4. heparin


Correct Option: B

The enzyme that is not associated in the preparation of $C _{2}H _{5}OH$ from starch is:

  1. maltase

  2. diastase

  3. invertase

  4. zymase


Correct Option: C
Explanation:
Starch is hydrolyzed to Maltose by an enzyme called diastase
Maltase converts Maltose to Glucose
Zymase converts Glucose to ethanol.
So the enzyme that is not associated in the preparation of ${C} _{2}{H} _{5}OH$ from starch is invertase

Coenzyme is :

  1. the non-protein component of an enzyme which is loosely held by the enzyme and necessary for its biological activity

  2. the protein component of an enzyme which is loosely held by the enzyme and necessary for its biological activity

  3. the non-protein or protein component of an enzyme which is loosely held by the enzyme and necessary for its biological activity

  4. none of these


Correct Option: A
Explanation:

coenzyme is an organic non-protein compound that binds with an enzyme to catalyze a reaction. coenzyme cannot function alone, but can be reused several times when paired with an enzyme. Without coenzymes or cofactors, enzymes cannot catalyze reactions effectively.

Pick out the one which does not belong to the family of enzymes.

  1. Lipase

  2. Pepsin

  3. Ptylin

  4. Cellulose


Correct Option: D
Explanation:

Cellulose is the carbohydrate which is not considered as enzyme.
Hence option D is correct.