Biology MCQs Practice Test

Question 1

Which light is more important for photosynthesis?

Accepted Answer

Red Light

Answer

Violent Light

Answer

Green Light

Answer

All of these

Question 2

The normal human adult male has :?

Accepted Answer

14 gram of hemoglobin/100 gram of blood

Answer

10 gram of hemoglobin/100 gram of blood

Answer

12a gram of hemoglobin/100 gram of blood

Answer

16 grams of hemoglobin/100 grams of blood

Question 3

The enzyme amylase is responsible for the initial digestion of?

Accepted Answer

Carbohydrates

Answer

Proteins

Answer

Lipids

Answer

Nucleic Acids

Question 4

Pepsin is an enzyme that digests ?.

Accepted Answer

Proteins

Answer

Starch

Answer

Carbohydrate

Answer

Fats

Question 5

Hemoglobin in arthropods is:?

Accepted Answer

None of these

Answer

Dissolved Blood

Answer

Associated with WBCs

Answer

Associated with RBCs

Question 6

Red Blood Cells remain in the body for ?days.

Accepted Answer

120

Answer

30

Answer

60

Answer

150

Question 7

What do we breathe in to stay alive?

Accepted Answer

Oxygen

Answer

Hydrogen

Answer

Carbon dioxide

Answer

None of these

Question 8

Arrange food chain: snake, grass, frog, grasshopper, eagle?

Accepted Answer

Grass, Grasshopper, Frog, Snake, Eagle

Answer

Snake, Grass, Frog, Grasshopper, Eagle

Answer

Grass, Frog, Grasshopper, Snake, Eagle

Answer

Eagle, Snake, Frog, Grass, Grasshopper

Question 9

During Asthma, which type of blood cells increase in blood?

Accepted Answer

Eosinophils

Answer

Monocytes

Answer

Neutrophils

Answer

Lymphocytes

Question 10

Enzymes are ?

Accepted Answer

Protein in nature

Answer

Steroid in nature

Answer

Lipid in nature

Answer

Carbohydrate in nature

Question 11

Which cellular organelle is universally termed the Powerhouse of the Cell due to ATP generation?

Accepted Answer

Mitochondria

Answer

Ribosome

Answer

Golgi Apparatus

Answer

Endoplasmic Reticulum

Question 12

The normal ranges of respirations in an adult are:?

Accepted Answer

12-20 Breaths Per Minute

Answer

12-30 Breaths Per Minute

Answer

20-35 Breaths Per Minute

Answer

None of these

Question 13

How many internal muscular chambers does the normal adult human heart possess?

Accepted Answer

4

Answer

2

Answer

3

Answer

5

Question 14

Which of the following is a gas that we breathe out?

Accepted Answer

Carbon dioxide

Answer

Hydrogen

Answer

Oxygen

Answer

None of these

Question 15

Which organs of plants are also called as food factory of plant?

Accepted Answer

Leaves

Answer

Roots

Answer

Stems

Answer

Flowers

Question 16

Glycolysis is ……..

Accepted Answer

Takes place in Cytoplasm

Answer

Produced no ATP

Answer

Is the same as fermentation

Answer

None of these

Question 17

Fats absorb in ?

Accepted Answer

Small Intestine

Answer

Stomach

Answer

Kidney

Answer

None of these

Question 18

Mechanical Ventilation is administered at which time?

Accepted Answer

respiratory failure

Answer

memory loss

Answer

stroke

Answer

increased cardiac output

Question 19

Person with following blood group are considered to be universal recipient ?

Accepted Answer

AB+

Answer

B+

Answer

A+

Answer

None

Question 20

Enzymes show optimum activity between 37 C to 50 C however works:?

Accepted Answer

It loses activity permanently above 50 C

Answer

above 50 C

Answer

Below #7 C

Answer

it loses activity permanently below 37 C

Question 21

Photosynthesis occurs in ?

Accepted Answer

Chloroplast

Answer

Nucleus

Answer

Golgi body

Answer

None of these

Question 22

The food chain always starts from ?

Accepted Answer

Producers

Answer

Consumers

Answer

Decomposers

Answer

Predators

Question 23

Hemoglobin combines with---and transport to different cells of the body.

Accepted Answer

Red blood cells

Answer

White blood cells

Answer

Both a and b

Answer

Oxygen

Question 24

In a severe anemia, HB levels come down to ?

Accepted Answer

6.5 g/dl

Answer

7.2 g/dl

Answer

8 g/dl

Answer

None of these

Question 25

In human beings, there are 23 pairs of chromosomes. Down’s syndrome disorder is concerned with chromosome number ?

Accepted Answer

21

Answer

23

Answer

22

Answer

None of these

Biology MCQs Practice Test

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Biology MCQs Practice Test

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