Biology Quiz- 3 | My Online Pathshala

1. Cancer is more common in older people because -

(a) their immune systems have degenerated

(b) the supply of certain hormones declines with age

(d) they have accumulated more mutations

Correct! Wrong!

Answer:- (d)

2. What would happen if human blood becomes acidic (low pH) ?

(a) Oxygen carrying capacity of haemoglobin is increased

(b) Oxygen carrying capacity of haemoglobin is decreased

(d) RBC count decreases

Correct! Wrong!

Answer:- (b)

3. Which one among the following statements about blood transfusion is correct? Blood group B can give blood to -

(a) blood Group B and receive from Group AB

(b) blood Groups B and AB and receive from Group B

(d) blood Group O and receive from Group B

Correct! Wrong!

Answer:- (b)

4. The gastrointestinal hormones namely secretin and cholecystokinin secreted by duodenal epithelium activate respectively which organs discharge their secretions ?

(a) Pancreas and gall bladder

(b) Gall bladder and stomach

(d) Stomach and small intestine

Correct! Wrong!

Answer:- (a)

5. Endosulfan, which has been in news these days, is -

(a) a pesticide

(b) a fertiliser

(d) an antibiotic

Correct! Wrong!

Answer:- (a)

6. Development of goitre (enlarged thyroid gland) is mainly due to deficiency of -

(a) sodium

(b) iodine

(d) iron

Correct! Wrong!

Answer:- (b)

7. To suspect HIV/AIDS in a young individual, which one among the following symptoms is mostly associated with ?

(a) Long standing jaundice and chronic liver disease

(b) Severe anaemia

(d) Severe persistent headache

Correct! Wrong!

Answer:- (d)

8. Polar bears are carnivores and prey on many arctic birds and fishes. However, under natural conditions, no one found polar bears predating any penguin. This is because -

(a) penguins have chemical substance in their muscles which is toxic to polar bears

(b) penguins are gregarious and always move in groups. Therefore, a polar bear cannot approach them

(c) polar bears and penguins never coexist under natural conditions. The former lives in the North Pole while the latter lives in the South Pole

(d) polar bears and penguins display symbiotic relationships and they help each other for their existence in the 'ice-cold ecosystem

Correct! Wrong!

Answer:- (c)

9. Which one among the following group of items contain only biodegradable items ?

(a) Wood, Grass, Plastic

(b) Wood, Grass, Leather

(d) Lime juice, Grass, Polystyrene cup

Correct! Wrong!

Answer:- (b)

10. Bats can fly in dark because they -

(a) have strong wings

(b) have sharp eyes

(d) are nocturnal

Correct! Wrong!

Answer:- (c)

1. Cancer is more common in older people because -

2. What would happen if human blood becomes acidic (low pH) ?

3. Which one among the following statements about blood transfusion is correct? Blood group B can give blood to -

4. The gastrointestinal hormones namely secretin and cholecystokinin secreted by duodenal epithelium activate respectively which organs discharge their secretions ?

5. Endosulfan, which has been in news these days, is -

6. Development of goitre (enlarged thyroid gland) is mainly due to deficiency of -

7. To suspect HIV/AIDS in a young individual, which one among the following symptoms is mostly associated with ?

8. Polar bears are carnivores and prey on many arctic birds and fishes. However, under natural conditions, no one found polar bears predating any penguin. This is because -

9. Which one among the following group of items contain only biodegradable items ?

10. Bats can fly in dark because they -

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