Life Processes in Animals and Plants MCQs with Answers

If you are preparing for MDCAT and looking for the chapter Life Processes in Animals and Plants MCQs with Answers then you’ve landed in the right place. Multiple Choice Questions for Life processes in animals and plants with answers are available here. Human physiology comprises on following chapters; nutrition, gaseous exchange, transport, and homeostasis. After solving these sample human physiology MCQs for the MDCAT test, students will become able to understand the Respiratory system, lymphatic system, Immune system, digestive system, Gas exchange, and other basic systems. Through this MDCAT sample test paper, the candidate will become able to understand the anatomy of the digestive system, the anatomy of the respiratory system, the structure of the Heart, and its functions. There are processes in plants including parasitic nutrition and uptake of water. So, get Life Processes in Animals and Plants MCQs for MDCAT below.

Life Processes in Animals and Plants MCQs with Answers

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LIFE PROCESSES IN ANIMALS & PLANTS

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1. What causes the movement of K+ into guard cells while opening of stomata?

A) acid pH of guard cells

B) flaccidity of guard cells

C) high level of CO2

D) photosynthesis

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2. The protein that acts as catalysts in blood clotting process in human being is called:

A) fibrin

B) fibrinogen

C) thrombin

D) prothrombin

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3. No entry of water into the cells in:

A) vacuolar pathway

B) all of these pathway

C) apoplast pathway

D) symplast pathway

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4. Of the total transpiration, the cuticular transpiration is about:

A) 10 – 20 %

B) 1 – 2 %

C) 5 – 7 %

D) 90 %

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5. In humans, the aorta bifurcates at the lower abdomen into the:

A) iliac arteries

B) sciatic arteries

C) femoral arteries

D) mesenteric arteries

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6. Each heart beat (cardiac cycle) of man takes:

A) 0.8 seconds

B) 0.15 seconds

C) 1.8 seconds

D) 0.5 seconds

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7. . In grasshopper tubular dorsal vessel extends in the mid-dorsal line immediately below the:

A) terga

B) endoskeleton

C) sterna

D) muscles

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8. In cockroach which sequence of organs is involved during blood flow from heart?

A) aorta → perinural sinus → haemocoel → perivisceral sinus → pericardial sinus → heart

B) aorta → haemocoel → perinural sinus → perivisceral sinus → pericardial sinus → heart

C) aorta → pericardial sinus → perivisceral sinus → perinural sinus → hacnocoel→ heart

D) aorta → perivisceral sinus → perinural sinus → perivisceral sinus → pericardial sinus → heart

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9. What is not true for pulmonary artery?

A) it carries deoxygenated blood

B) it takes blood to lungs

C) it has semi lunar valve at its base

D) it arises from left ventricle

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10. Which of the following cells possess casparian strips?

A) cortex

B) xylem vessels

C) endodermis

D) epidermis

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11. Heart beat sound is due to:

A) contraction of ventricles

B) action of valves in heart

C) contraction of atria

D) contraction of muscles

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12. Each chamber of heart of grasshopper is provided with a pair of lateral openings, the:

A) osculum

B) stomium

C) ostia

D) aperture

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13. Root pressure is generated by active secretion of salts into:

A) cortex

B) endodermis

C) phloem

D) xylem

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14. Which of the following is considered as blood cancer?

A) sickle cell anemia

B) leukemia

C) oedema

D) thalassaemia

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15. Which animal has high surface area to volume ratio?

A) grasshopper

B) amoeba

C) earthworm

D) starfish

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16. During uptake of mineral ions active transport is selective and is dependent on:

A) ascent of sap

B) respiration

C) transpiration

D) uptake of water

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17. Cardiac muscles can be distinguished from other muscles because they:

A) have intercalated discs

B) lack regular arrangement of sarcomeres

C) are voluntary in action

D) contain only action

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18. A white substance called pus is produced at infectious site due to accumulation of dead:

A) lymphocytes and monocytes

B) monocytes and neutrophils

C) neutrophills and basophils

D) basophills and esinophills

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19. From the 14thsegment backwards, the dorsal blood vessel of earthworm serves as a:

A) collecting vessel

B) both collecting and distributing vessel

C) distributing vessel

D) link vessel only

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20. What sequence of organs is involved in blood circulation of fish?

A) heart → dorsal aorta → body → ventral aorta → gills → sinus venosus

B) heart → sinus venosus → ventral aorta → dorsal aorta → gills → body

C) heart → dorsal aorta → gills → ventral aorta → body → sinus venosus

D) heart → ventral aorta → gills → dorsal aorta → body → sinus venosus

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Life Processes in Animals and Plants MCQs with Answers

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