Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Sugarcane plants are usually propagated by vegetative means because

A. they do not produce seeds
B. it is possible to maintain genetic quality
C. the incidence of disease may be reduced
D. None of these
Answer» B. it is possible to maintain genetic quality
2.

Approximately how many times each day, do our heart valves open and close normally?

A. 10,000 times
B. 1,00,000 times
C. 1,50,000 times
D. 2,00,000 times
Answer» C. 1,50,000 times
3.

The kidney shaped guard cells are present in

A. Dicot plants
B. Monocot plants
C. Both the above
D. Algae
Answer» B. Monocot plants
4.

A prokaryotic cell does not have which of the following?

A. Ribosomes
B. Cell membrane
C. Nucleus
D. DNA
Answer» D. DNA
5.

Which of the following plant pigments absorbs in red and far-red region of light?

A. Carotenoide
B. Chlorophyll
C. Phytochrome
D. Cryptochrome
Answer» D. Cryptochrome
6.

Which animal may suffer from foot and mouth disease ?

A. Cattle
B. Cattle and sheep
C. Cattle and pigs
D. Cattle, sheep and pigs
Answer» C. Cattle and pigs
7.

Which one of the following four secretions, is different from the remaining three in regard to its mode of transport from the source gland to the site of action?

A. Saliva
B. Sweat
C. Bile
D. Epinephrine
Answer» D. Epinephrine
8.

Aspartame is the name of a product used by diabetic patients as a sweetening agent. It belongs to the class of

A. Carbohydrates
B.
C. Peptides
D. Polyhydric alcohols
E. Alkaloids
Answer» C. Peptides
9.

Identify the correct stateme-nt with respect to Biogas.

A. Mixture of gases from volcanoes
B. Gas produced from certain crude oil wells
C. Gas produced by incomplete combustion of biomass
D. Gas produced by fermen-tation of biomass
Answer» E.
10.

The gas released during photosynthesis:

A. Carbon dioxide
B. Oxygen
C. Carbon monoxide
D. Sulphur dioxide
Answer» C. Carbon monoxide
11.

Vegetable oils are converted into solid fat (ghee) by

A. Hydrolysis
B. Addition of agar
C. Oxidation using air and a catalyst
D. Hydrogenation
Answer» E.
12.

Natural organic fertilizers are found to be better then chemical fertilizers because

A. chemical fertilizers are less productive
B. organic fertilizers are more productive
C. organic fertilizers sustain soil productivity
D. chemical fertilizers are toxic
Answer» D. chemical fertilizers are toxic
13.

A drug which helps in controlling fever is

A. Ibuprofen
B. Penicillin
C. Paracetamol
D. Corticosteroid
Answer» D. Corticosteroid
14.

Haemoglobin is a

A. protein
B. carbohydrate
C. fat
D. vitamin
Answer» B. carbohydrate
15.

Which cells in our body have the least regenerative power?

A. Brain cells
B. Mussle cells
C. Bone cells
D. Liver cells
Answer» B. Mussle cells
16.

What is true about viruses without exception?

A. They contain a core of RNA
B. They can infect bacteria
C. They cannot produce antibodies
D. They can multiply only in host cells
Answer» E.
17.

Alfalfa is the name of a kind of

A. Forest
B. Crop
C. Grass
D. None of these
Answer» C. Grass
18.

Pulses are obtained from the family :

A. Liliaceae
B. Leguminosae
C. Cycadaceae
D. Fungi
Answer» C. Cycadaceae
19.

Human beings have two ears because two ears help

A. to judge the direction of sound
B. to hear even a feeble sound
C. to enjoy music better
D. to distinguish between two kinds of sounds arriving at the ears in opposite directions
Answer» E.
20.

It causes clotting of blood

A. Thrombin
B. Haemoglobin
C. Pectin
D. All of the above
Answer» B. Haemoglobin
21.

The largest flightless bird which can run at a great speed is

A. Penguin
B. Kiwi
C. Ostrich
D. Emu
Answer» D. Emu
22.

Pace-maker is associated with

A. Kidney
B. Brain
C. Heart
D. Lung
Answer» D. Lung
23.

Bakeries use yeast in breadmaking because it

A. makes the bread hard
B. makes the bread soft and spongy
C. enhances the food values
D. keeps the bread fresh
Answer» C. enhances the food values
24.

Which one of the following is the most sensitive Indicator of the health of a community?

A. Birth rate
B. Infant mortality rate
C. Death rate
D. Maternal mortality rate
Answer» C. Death rate
25.

The total number of ear bones is

A. 2
B. 4
C. 6
D. 8
Answer» F.
26.

The central control of respiratory activity in human body is exercised by

A. cerebrum
B. cerebellum
C. medulla oblongata
D. hypothalamus
Answer» D. hypothalamus
27.

The duration 19-21 days refers to:

A. incubation period of hen s egg
B.
C. average life-span of a red blood cell in humans
D. the period of menstrual cycle soon after menstruation, during which fertilisation is most likely to occur
E. period of completion of one schizogony cycle of malarial parasite inside a red blood cell
Answer» D. the period of menstrual cycle soon after menstruation, during which fertilisation is most likely to occur
28.

Plants get water through the roots because of

A. elasticity
B. capillarity
C. viscosity
D. photosynthesis
Answer» C. viscosity
29.

The histogen, from which epidermis is formed, is

A. Dermatogen
B. Periblem
C. Plerome
D. Calyptrogen
Answer» B. Periblem
30.

In a plant, the xylem tissue conducts :

A. water
B. food
C. water and food
D. None of these
Answer» C. water and food
31.

A person having blood type B could safely donate blood to persons with blood types

A. A and O
B. B and O
C. A and AB
D. B and AB
Answer» E.
32.

The primary source of carbohydrates are

A. Marine animals
B. Plants
C. Coal-tar
D. Crude oil
Answer» C. Coal-tar
33.

The process through which excess of light energy is dissipated in photosynthesis is known as

A. Quenching
B. Scavenging
C. Photolysis
D. Photo-phosphorylation
Answer» B. Scavenging
34.

The parts of human body affected by Pyria are:

A. eyes
B. small intestine
C. teeth and gums
D. large intestine
Answer» D. large intestine
35.

Which of the following is not a gland ?

A. Thyroid
B. Stomach
C. Liver
D. Pancreas
Answer» C. Liver
36.

Carrot is a rich source of vitamin

A. A
B. C
C. D
D. E
Answer» B. C
37.

The vitamin which cannot be had from any vegetables is

A. Vitamin B
B. Vitamin C
C. Vitamin D
D. Vitamin E
Answer» D. Vitamin E
38.

Scurvy is a disease of

A. hair
B. skin
C. liver
D. eyes
Answer» C. liver
39.

The substrate of Photorespiration is :

A. Fructose
B. Pyruvic acid
C. Glycolate
D. Glucose
Answer» D. Glucose
40.

High level of uric acid in the blood causes

A. Arthritis
B. Gout
C. Rheumatism
D. Asthma
Answer» C. Rheumatism
41.

The strongest bone of the body is present in the

A. Thigh
B. Jaw
C. Arm
D. Neck
Answer» B. Jaw
42.

Which of the following groups of organisms reproduce faster?

A. Algae
B. Fungi
C. Bacteria
D. Protozoa
Answer» D. Protozoa
43.

Why death of fish is more common during summer than in winter?

A. shortage of food
B. concentration of toxins
C. depletion of oxygen
D. spread of diseases
Answer» D. spread of diseases
44.

Which one of the following foodstuffs of the same quantity possesses the highest calorific value?

A. Butter
B. Apple
C. Cheese
D. Sugar
Answer» B. Apple
45.

A person of blood group AB can receive blood from a person of

A. Only group AB
B. Only group A
C. Only group B
D. Any blood group
Answer» E.
46.

A plant with fibrous root system is :

A. Wheat
B. Pea
C. Mustard
D. Bean
Answer» B. Pea
47.

Ascent of sap in plants takes place through

A. Pith
B. Phloem
C. Cambium
D. Xylem
Answer» E.
48.

Which of these fruits develop from an inflorescence ?

A. Apple
B. Guava
C. Pineapple
D. Grape
Answer» D. Grape
49.

The function of Haemoglobin is to :

A. provide amino acids
B. carry oxygen
C. provide enzymes
D. help in excretion
Answer» C. provide enzymes
50.

Which of the following stores glycogen?

A. Spleen
B. Pancreas
C. Gastric glands
D. Liver
Answer» E.