Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology enzymes classification of enzyme enzymes classification and cofactors the origin of cells and cell division

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
Reveal answer Fill a bubble to check yourself
A Correct answer
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'. 

Multiple choice biology enzymes classification of enzyme enzymes classification and cofactors the origin of cells and cell division

Class of enzymes contained in lysosomes is 

  1. Lyases

  2. Ligases

  3. Hydrolases

  4. Transferases
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

Multiple choice biology control and co-ordination in plants and animals control of blood glucose hormones in human reproduction testes and ovary

Which gland is also called suprarenal Gland?

  1. Thyroid Gland

  2. Adrenal Gland

  3. Pituitary Gland

  4. Hypothalamus
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

Multiple choice biology control and co-ordination in plants and animals control of blood glucose hormones in human reproduction testes and ovary

Feedback Mechanism is the important for homeostasis.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

Multiple choice biology control and co-ordination in plants and animals control of blood glucose hormones in human reproduction testes and ovary

Myxedema is caused by

  1. Hyperthyroidism

  2. Hypothyroidism

  3. Diabetes Mellitus

  4. Hypermetropia
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

Multiple choice biology control and co-ordination in plants and animals control of blood glucose hormones in human reproduction testes and ovary

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
Reveal answer Fill a bubble to check yourself
D Correct answer
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.