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

A) link vessel only

B) both collecting and distributing vessel

C) distributing vessel

D) collecting vessel

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2. Heart beat sound is due to:

A) contraction of atria

B) contraction of ventricles

C) contraction of muscles

D) action of valves in heart

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

A) sterna

B) endoskeleton

C) muscles

D) terga

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

A) 0.8 seconds

B) 1.8 seconds

C) 0.15 seconds

D) 0.5 seconds

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

A) xylem

B) endodermis

C) phloem

D) cortex

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

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

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

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

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

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

A) high level of CO2

B) flaccidity of guard cells

C) acid pH of guard cells

D) photosynthesis

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8. 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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9. Which of the following cells possess casparian strips?

A) cortex

B) endodermis

C) xylem vessels

D) epidermis

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

A) oedema

B) leukemia

C) thalassaemia

D) sickle cell anemia

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11. What is not true for pulmonary artery?

A) it arises from left ventricle

B) it carries deoxygenated blood

C) it has semi lunar valve at its base

D) it takes blood to lungs

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

A) uptake of water

B) respiration

C) transpiration

D) ascent of sap

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

A) 1 – 2 %

B) 90 %

C) 10 – 20 %

D) 5 – 7 %

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

A) lack regular arrangement of sarcomeres

B) have intercalated discs

C) are voluntary in action

D) contain only action

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

A) stomium

B) ostia

C) aperture

D) osculum

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

A) sciatic arteries

B) femoral arteries

C) iliac arteries

D) mesenteric arteries

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17. 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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18. 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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19. A white substance called pus is produced at infectious site due to accumulation of dead:

A) basophills and esinophills

B) lymphocytes and monocytes

C) neutrophills and basophils

D) monocytes and neutrophils

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

A) earthworm

B) amoeba

C) grasshopper

D) starfish

Your score is

Life Processes in Animals and Plants MCQs with Answers

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