Life process in Animals and Plants – Online MCQs Test – Biology MCAT

1. Hydrochloric acid is secreted by

Oxyntic cells

None of them

Mucous cells

Zymogen cells

2. In respiration pyruvic acid is

A result of protein break down

Formed only when oxygen is available

One of product of Kreb’s cycle

Broken down into Acetyl Co-A and CO₂

3. A cell placed in strong solution will shrink because

Salt Water enter the cell

Mineral salt will break the cell wall

Water comes out by ex-osmosis

Cytoplasm will decompose

4. Constant flow of CO₂ from the tissues into the blood is due to

Equal amount of CO₂ in tissue cells and blood

Enzymatic reactions

More amount of CO₂ in tissue cells than in the blood

Less amount of CO₂ in tissue cells than in the blood

5. Which one is an inorganic nutrient?

Protein

Cellulose

Calcium

Vitamin

6. Process of water exudation through hydathodes is called

Excretion

Transpiration

Guttation

Hydrolysis

7. The largest amount of the carbon dioxide is carried to the lungs by

Leukocytes

Thrombocytes

The plasma as the bicarbonate ion

Erythrocytes

8. Pharynx of planaria opens in

Stomach

Intestine

Oesophagus

Absent

9. Parietal cells perform such function as

Regulation of blood

Protein digestion

Production of stomach

Decreasing in stomach PH

10. Autotrophic organisms produce organic compounds by

H₂O

Nitrates

CO₂

All of them

11. In rainy season, the doors get wet due to

Endosmosis

Imbibition

Diffusion

Absorption

12. The cells which suppress the entire immune system from its attack in the same body are known as

Suppressor T-cells

Killer B-cells

Helper T-cells

Suppressor cells

13. Which is an example of passive immunity?

Babies who are nursing receive antibodies from their mother.

Lifelong immunity.

You become resistant to mumps after receiving the mumps vaccine.

You become resistant to viral infection once you have recovered from it

14. All the following statements are correct except that

The apoplatic system is the system of interconnected protoplasts that is continuous through the plant, except at the casparian strips of the endodermis in the roots.

The movement through the apoplast does not involve crossing the cell membrane.

The symplastic movement of absorbed water may be aided by cytoplasmics treaming.

The xylem vessels and tracheids are nonliving conduits so are parts of the apoplast.

15. Cardiac muscle is composed of

Striated, branched and involuntary muscle fibres

Unstriated (smooth), spindle shaped and voluntary muscle fibres

Striated, branched and voluntary muscle fibres

Unstriated muscle fibres

16. Which of these has a double closed type of circulatory system?

Fish, Frog

Earthworm, Human

Cockroach, Fish

Birds, Human

17. Exchange of substances between individual cells and their environments takes place by

Diffusion

Osmosis

Active transport

All of the above

18. __________ is elimination of indigestible wastes form body.

Egestion

Ingestion

Assimilation

Absorption

19. Finger like process that arises form blind sac is called

Lymph vessels

Capillaries

Blood vessels

Appendix

20. When a potato piece is kept in a highly concentrated salt solution then the

Potato is plasmolyzed

There is no effect due to isotonic solution

Potato cells get bursted

Potato is deplasmolysed

Life process in Animals and Plants (nutrition/ gaseous exchange/ transport)-Medical College Admission Test Preparation Notes