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

A) lack regular arrangement of sarcomeres

B) are voluntary in action

C) contain only action

D) have intercalated discs

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

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

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

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

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

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

A) osculum

B) ostia

C) stomium

D) aperture

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

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

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

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

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

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

A) flaccidity of guard cells

B) photosynthesis

C) acid pH of guard cells

D) high level of CO2

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7. Which of the following cells possess casparian strips?

A) epidermis

B) endodermis

C) xylem vessels

D) cortex

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

A) link vessel only

B) collecting vessel

C) both collecting and distributing vessel

D) distributing vessel

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

A) 1.8 seconds

B) 0.8 seconds

C) 0.5 seconds

D) 0.15 seconds

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

A) femoral arteries

B) mesenteric arteries

C) iliac arteries

D) sciatic arteries

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11. 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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12. Which animal has high surface area to volume ratio?

A) amoeba

B) starfish

C) earthworm

D) grasshopper

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

A) 10 – 20 %

B) 5 – 7 %

C) 1 – 2 %

D) 90 %

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14. What is not true for pulmonary artery?

A) it carries deoxygenated blood

B) it has semi lunar valve at its base

C) it arises from left ventricle

D) it takes blood to lungs

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

A) terga

B) sterna

C) muscles

D) endoskeleton

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

A) thalassaemia

B) oedema

C) sickle cell anemia

D) leukemia

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17. Heart beat sound is due to:

A) contraction of ventricles

B) contraction of muscles

C) action of valves in heart

D) contraction of atria

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18. No entry of water into the cells in:

A) all of these pathway

B) vacuolar pathway

C) symplast pathway

D) apoplast pathway

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

A) xylem

B) cortex

C) endodermis

D) phloem

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

A) monocytes and neutrophils

B) neutrophills and basophils

C) lymphocytes and monocytes

D) basophills and esinophills

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Life Processes in Animals and Plants MCQs with Answers

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