Tag: biology

Questions Related to biology

Enzymes generally have

  1. Same pH and temperature optima

  2. Same pH but different temperature optima

  3. Different pH but same temperature optima

  4. Different pH and different temperature optima


Correct Option: A
Explanation:

Enzymes are biocatalyst that affects the rate of biochemical reactions they generally have the same pH and temperature Optima at which they work efficiently. 

So, the correct option is 'Same pH and temperature optima'. 

Class of enzymes contained in lysosomes is 

  1. Lyases

  2. Ligases

  3. Hydrolases

  4. Transferases


Correct Option: C
Explanation:

A lysosome is a membrane-bound organelle found in nearly all animal cells. They are spherical vesicles which contain hydrolytic enzymes that can break down many kinds of biomolecules. So, the correct answer is option C.

Which organ cells produce gastrointestinal hormones?

  1. Stomach

  2. Pancreas

  3. Small Intestine

  4. All of the above


Correct Option: D
Explanation:

All of the above are gastrointestinal hormones,

Which is the smallest gland in human body?

  1. Liver

  2. Pituitary Gland

  3. Thyroid Gland

  4. Pineal Body


Correct Option: D
Explanation:

The pineal gland, also known as the pineal body, conarium or epiphysis cerebri, is a small endocrine gland in the vertebrate brain.

The thyroid gland is

  1. Unilobed.

  2. Bilobed.

  3. Trilobed.

  4. Tetra-lobed.


Correct Option: B
Explanation:

The thyroid gland is a bilobed organ of the endocrine system located in the front of the neck. It secretes hormones that are involved in human development, growth, and metabolism.

Which gland is also called suprarenal Gland?

  1. Thyroid Gland

  2. Adrenal Gland

  3. Pituitary Gland

  4. Hypothalamus


Correct Option: B
Explanation:

The adrenal glands (also known as supra-renal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol. They are found above the kidneys.

The stored form of glucose in liver or muscles is called

  1. Glycogen.

  2. Glucagon.

  3. Glycolysis.

  4. Glycogenesis.


Correct Option: A
Explanation:

When the body has extra glucose, it stores it in the liver and muscles. This stored form of glucose is called glycogen.

Feedback Mechanism is the important for homeostasis.

  1. True

  2. False


Correct Option: A
Explanation:

Homeostasis relates to dynamic physiological processes that help us maintain an internal environment suitable for normal function. Feedback mechanism also helps in maintaining this balance of the hormones in the body.

Myxedema is caused by

  1. Hyperthyroidism

  2. Hypothyroidism

  3. Diabetes Mellitus

  4. Hypermetropia


Correct Option: B
Explanation:

Myxedema refers to a severe form of hypothyroidism than can occur when the condition is left untreated or is not treated sufficiently. The term also applies to the effects that hypothyroidism can have on the skin, making it appear swollen and puffy.

Which hormonal secretion in the body leads to the development mustache and beard in males during  puberty? 

  1. Progesteron

  2. Estrogen

  3. Insulin

  4. Testosterone


Correct Option: D
Explanation:

Testosterone is the primary male sex hormone and an anabolic steroid. In male humans, during puberty, the growth of mustache and beard is seen as a sign of growth.