Life Processes Test

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Life Processes Test - 82

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Weekly Quiz Competition

Question 1
1 / -0

Plants, but not animals , can convert fatty acids to sugars by a series of reactions called

A
photosynthesis

B
Krebs cycle

C
glycolysis

D
glyoxylate cycle

Solution

(A)Photosynthesis is a physiochemical process where fatty acids are converted to sugar.
(B)Krebs cycle is a series of chemical reaction used by the aerobic organism to release energy.
(C)Glycolysis is a series of chemical reaction used for the production of pyruvic acid.
(D)Glyoxylate cycle is a series of chemical reaction used for the synthesis of carbohydrate.

So, the correct option is 'Photosynthesis'.
Question 2
1 / -0

The atrial wall is ________, while the ventricular wall is _______.

A
Thin, thick

B
Thin, thin

C
Thick, thin

D
Thick, thick
Solution
- Our heart has four chambers, two relatively small thin-walled upper chambers called atria. These receive oxygenated blood (left atrium) and deoxygenated blood (right atrium). These are the 'receiving chambers'.
- The atria pour the blood received by them into the respective ventricle. Ventricles are thick-walled as they have to pump blood. The right ventricle pumps blood into the pulmonary artery while the left ventricle pumps blood into the aorta.
So, the correct answer is 'thin, thick'.
Question 3
1 / -0

Which statement is correct for blood pressure

A
The instrument by which we can measure B.P. is called stethoscope.

B
Normal B.P. of the healthy person is 140/80 mm Hg.

C
Diastolic pressure that shows the state of heart relaxation.

D
Systolic pressure limit is 140 mm Hg

Solution

The instrument used to measure blood pressure is known as a sphygmomanometer. The normal blood pressure of a healthy person is 120/80 mm Hg, where 120 is the systolic pressure limit. Diastolic pressure shows the rate of heart relaxation. It is the pressure generated by blood flow as a result of relaxation of the heart.
So, the correct answer is ' Diastolic pressure that shows the state of heart relaxation'.
Question 4
1 / -0

Wharton's duct is part of _________ gland.

A
Parotid

B
Submaxillary

C
Sublingual

D
Brunner's
Question 5
1 / -0

Select the incorrect pair-

A
Secondary lysosome - Digestive vacuole

B
Residual bodies - Autolysis

C
Contractile vacuole - Helps in excretion in Amoeba

D
Golgi apparatus - Glycosidation of lipids
Solution
Solution:
Correct answer is option B.
Explanation for correct option:
Residual bodies are cytoplasmic vacuole containing the leftover products of digestion after fusion with the contents of a lysosome.
Residual bodies are either secreted by the cell via exocytosis (this generally only occurs in macrophages), or they become lipofuscin granules that remain in the cytosol indefinitely.
They are not involved in autolysis like that of lysosomes.

Explanation for incorrect option:
Rest all given options matches correctly with their function.
Question 6
1 / -0

An event that may happen in heterotrophic nutrition is?

A
Conversion of carbon dioxide into carbohydrate

B
Unused carbohydrates are stored in the form of starch

C
Excess of glucose converts into cellulose

D
Water molecules decomposes into hydrogen and oxygen molecules
Question 7
1 / -0

How many statements are true for photosynthesis.
(A) $$CO_2$$ is oxidized and $$H_2O$$ is reduced
(B) $$CO_2$$ is reduced and $$H_2O$$ is oxidized
(C) $$CO_2$$ is reduced to form glucose
(D) $$H_2O$$ is oxidized to evolve $$O_2$$.

A
One

B
Two

C
Three

D
Four
Question 8
1 / -0

Diastolic pressure gives valuable information regarding?

A
Force of left ventricle contraction

B
Force of right ventricle contraction

C
Resting blood pressure

D
Pumping blood pressure

Solution

The diastolic pressure is the pressure in the arteries when the heart rests between beats.
Option 'C" is correct.
Question 9
1 / -0

Normal Blood Pressure (B.P.) in man is?

A
$$120/80$$

B
$$80/120$$

C
$$80/100$$

D
$$100/80$$
Solution
Systolic blood pressure (the first number) – indicates how much pressure your blood is exerting against your artery walls when the heart beats (systole).
Diastolic blood pressure (the second number) – indicates how much pressure your blood is exerting against your artery walls while the heart is resting between beats.
Blood pressure during systole will definitely be higher than during diastole.
A normal blood pressure level in men is approximately 120/80 mmHg.
So, the correct answer is (A)
Question 10
1 / -0

Choose the odd one out and give scientific reasons.

A
Collecting Duct

B
Glomerulus

C
Bowman's Capsule

D
Alveoli

Solution

The collecting duct, glomerulus and Bowman's capsule are a part of nephrons. Nephrons are the basic unit of the excretory system in humans, but the alveoli are part of the respiratory system.
Hence, the correct answer is option D.

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Re-Attempt Weekly Quiz Competition

Life Processes Test - 82

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Life Processes Test - 82

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SHARING IS CARING

Question 1

photosynthesis

Krebs cycle

glycolysis

glyoxylate cycle

Solution

Question 2

Thin, thick

Thin, thin

Thick, thin

Thick, thick

Solution

Question 3

The instrument by which we can measure B.P. is called stethoscope.

Normal B.P. of the healthy person is 140/80 mm Hg.

Diastolic pressure that shows the state of heart relaxation.

Systolic pressure limit is 140 mm Hg

Solution

Question 4

Parotid

Submaxillary

Sublingual

Brunner's

Question 5

Secondary lysosome - Digestive vacuole

Residual bodies - Autolysis

Contractile vacuole - Helps in excretion in Amoeba

Golgi apparatus - Glycosidation of lipids

Solution

Question 6

Conversion of carbon dioxide into carbohydrate

Unused carbohydrates are stored in the form of starch

Excess of glucose converts into cellulose

Water molecules decomposes into hydrogen and oxygen molecules

Question 7

One

Two

Three

Four

Question 8

Force of left ventricle contraction

Force of right ventricle contraction

Resting blood pressure

Pumping blood pressure

Solution

Question 9

$$120/80$$

$$80/120$$

$$80/100$$

$$100/80$$

Solution

Question 10

Collecting Duct

Glomerulus

Bowman's Capsule

Alveoli

Solution

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