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

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

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

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

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

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2. Heart beat sound is due to:

A) contraction of atria

B) action of valves in heart

C) contraction of ventricles

D) contraction of muscles

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

A) 0.8 seconds

B) 1.8 seconds

C) 0.5 seconds

D) 0.15 seconds

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

A) link vessel only

B) collecting vessel

C) distributing vessel

D) both collecting and distributing vessel

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

A) contain only action

B) are voluntary in action

C) lack regular arrangement of sarcomeres

D) have intercalated discs

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6. 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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7. Of the total transpiration, the cuticular transpiration is about:

A) 1 – 2 %

B) 90 %

C) 5 – 7 %

D) 10 – 20 %

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

A) mesenteric arteries

B) iliac arteries

C) sciatic arteries

D) femoral arteries

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9. No entry of water into the cells in:

A) vacuolar pathway

B) symplast pathway

C) all of these pathway

D) apoplast pathway

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

A) grasshopper

B) starfish

C) amoeba

D) earthworm

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

A) endodermis

B) xylem

C) cortex

D) phloem

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

A) high level of CO2

B) photosynthesis

C) acid pH of guard cells

D) flaccidity of guard cells

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

A) oedema

B) thalassaemia

C) leukemia

D) sickle cell anemia

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

A) neutrophills and basophils

B) basophills and esinophills

C) monocytes and neutrophils

D) lymphocytes and monocytes

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

A) osculum

B) stomium

C) aperture

D) ostia

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16. What is not true for pulmonary artery?

A) it has semi lunar valve at its base

B) it takes blood to lungs

C) it arises from left ventricle

D) it carries deoxygenated blood

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

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

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

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

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

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18. Which of the following cells possess casparian strips?

A) endodermis

B) cortex

C) epidermis

D) xylem vessels

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

A) sterna

B) muscles

C) endoskeleton

D) terga

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

A) transpiration

B) ascent of sap

C) uptake of water

D) respiration

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Life Processes in Animals and Plants MCQs with Answers

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