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.

In the animal cells, the number of centrioles that are located near the nucleus surface is

A. ten
B. eight
C. five
D. two
Answer» E.
2.

The type of connective tissue is

A. adipose tissue
B. squamous tissue
C. cuboidal tissue
D. stratified tissue
Answer» B. squamous tissue
3.

The size of red blood cells (in diameter) is

A. 10µm
B. 8µm
C. 12µm
D. 5µm
Answer» C. 12µm
4.

According to biologists, there are electron microscope's types in a number

A. 2
B. 3
C. 4
D. 5
Answer» B. 3
5.

The natural occurring source of vitamin D is

A. UV from Sun
B. tropical rains
C. rainforest plants
D. monsoon winds
Answer» B. tropical rains
6.

The removal of amino groups from the amino acids is called

A. assimilation
B. emulsification
C. ingestion
D. de-amination
Answer» E.
7.

The vitamins A, D, E, and K are classified as

A. carbon-soluble vitamins
B. oxygen-soluble vitamins
C. ethyl-soluble vitamins
D. calcium-soluble vitamins
Answer» C. ethyl-soluble vitamins
8.

The organisms that obtain from some other organisms are classified as

A. prokaryotic organisms
B. eukaryotic organisms
C. heterotrophic organisms
D. autotrophic organisms
Answer» D. autotrophic organisms
9.

The numerous finger-like projections in the folds of the wall of the ileum are classified as

A. bolus
B. chyme
C. villi
D. bile
Answer» D. bile
10.

The semi-transparent substance which is present between the nuclear envelope and plasma membrane is classified as

A. ribosomal fluid
B. cytoplasm
C. centrioles
D. lysosomes
Answer» C. centrioles
11.

The tissue which covers the organ lines and outside of the body is called

A. hypotonic tissues
B. isotonic tissues
C. epithelial tissue
D. hypertonic tissues
Answer» D. hypertonic tissues
12.

The structure of cell which provides protection, support, and shape to the living inner matter is classified as

A. Golgi wall
B. cell wall
C. tertiary wall
D. endoplasmic wall
Answer» B. cell wall
13.

The nonliving and strong component which surrounds the outer layer is

A. cell membrane
B. cell wall
C. plasma
D. nuclear envelope
Answer» C. plasma
14.

The cylindrical and hollow organelles that are found in many unicellular organisms and animals are

A. endoplasmic reticulum
B. centrioles
C. vacuoles
D. cytoplasm
Answer» C. vacuoles
15.

The redox reactions involve the exchange of

A. electrons between atoms
B. protons between atoms
C. neutrons between atoms
D. neurons between molecules
Answer» B. protons between atoms
16.

In the electron transport chain, the three ATP molecules produced

A. nicotinamide adenine dinucleotide hydrogen (NADH)
B. Adenosine monophosphate (AMP)
C. adenosine triphosphate (ATP)
D. flavin adenine dinucleotide (FAD)
Answer» B. Adenosine monophosphate (AMP)
17.

In anaerobic respiration, the number of ATP produced as the net profit is

A. 10
B. 8
C. 6
D. 2
Answer» E.
18.

The site for the glycolysis stage in aerobic respiration is

A. cytoplasm
B. mitochondria
C. Golgi apparatus
D. centrioles
Answer» B. mitochondria
19.

In lactic acid fermentation, the pyruvic acid molecules are converted into

A. nitric acid
B. citric acid
C. acetic acid
D. lactic acid
Answer» E.
20.

The process of diffusion of digested food into the lymph and blood is called

A. absorption
B. dissimilation
C. refraction
D. diffraction
Answer» B. dissimilation
21.

The fatty acids found in lipids are bonded to each other with

A. methanol
B. acetyl
C. ethanol
D. glycerol
Answer» E.
22.

The minerals that are required in an amount of 100 milligrams or more are called

A. major minerals
B. minor minerals
C. saturated minerals
D. unsaturated minerals
Answer» B. minor minerals
23.

The length of esophagus in an adult human is

A. 25 cm
B. 30 cm
C. 20 cm
D. 15 cm
Answer» B. 30 cm
24.

The process of taking the food in is called

A. distillation
B. ingestion
C. absorption
D. assimilation
Answer» C. absorption
25.

The bacteria are also known as

A. cytoplasma
B. macroplasma
C. mycoplasma
D. microplasma
Answer» D. microplasma
26.

The major categories of plants tissues are

A. compound tissues only
B. simple tissues only
C. epidermal tissues
D. compound and simple tissues
Answer» E.
27.

The photograph which is taken from a microscope is known as

A. macrograph
B. monograph
C. micrograph
D. pictograph
Answer» D. pictograph
28.

Lenses which enlarges the image on photographic film are known as

A. electron microscope
B. electron gun
C. electromagnetic film
D. negative
Answer» D. negative
29.

The nucleus of the cell was discovered by

A. Robert Hooke
B. Aristotle
C. Robert Brown
D. Matthias Schleiden
Answer» D. Matthias Schleiden
30.

The situation which occurs due to the occurrence of more rainfall than normal level or poor water distribution is

A. drought
B. monsoon winds
C. flood
D. tropical rain
Answer» D. tropical rain
31.

The problems that can occur because of malnutrition for a long period are

A. heart diseases
B. starvation
C. obesity
D. all of above
Answer» E.
32.

The micronutrient which is important in the transport of sugar, synthesis of enzymes and cell division is

A. phosphorus
B. boron
C. potassium
D. Sulphur
Answer» C. potassium
33.

The minerals that are required in an amount of less than 100 mg are called

A. citric minerals
B. nitric minerals
C. trace minerals
D. major minerals
Answer» D. major minerals
34.

The kinds of fatty acids include

A. unsaturated fatty acids only
B. saturated fatty acids only
C. acetic fatty acid
D. unsaturated and saturated fatty acids
Answer» E.
35.

The list prepared by International Union for Conservation of Nature and Natural Resources for endangered species is classified as

A. Brown List
B. White List
C. Black List
D. Red List
Answer» E.
36.

The scientific name Homo sapiens is used for recognition of

A. human beings
B. animals
C. flower plants
D. seedless fruits
Answer» B. animals
37.

Because of deforestation, the decreased transpiration leads to

A. less cloud formation
B. more cloud formation
C. more water storage
D. more oxygen
Answer» B. more cloud formation
38.

Earth is inhabited by at least 10 million kinds of

A. animals
B. organisms
C. human
D. birds
Answer» C. human
39.

The project which successfully implemented and banned animals hunting was

A. world health organization (WHO)
B. The International Union for Conservation of Nature (IUCN) only
C. World Wildlife Fund project (WWF-P) only
D. none of above
Answer» D. none of above
40.

The functions of the oral cavity are

A. lubrication only
B. chemical digestion only
C. releasing synthetic enzymes
D. lubrication andchemicla digestion
Answer» E.
41.

The bolus enters into the stomach from the esophagus through the sphincter called

A. pepsin sphincter
B. cardiac sphincter
C. gastric sphincter
D. pyloric sphincter
Answer» C. gastric sphincter
42.

The sources of soluble dietary fiber include

A. beans and oats
B. barley
C. vegetables and fruits
D. all of above
Answer» E.
43.

The situation in which there is less water availability for agricultural purposes is called

A. monsoon
B. thunderstorm
C. famine
D. drought
Answer» E.
44.

The elemental sulfur, gypsum and rock phosphate are classified as

A. inorganic fertilizers
B. nitric fertilizers
C. organic fertilizer
D. bio-fertilizers
Answer» B. nitric fertilizers
45.

The occurrence of mitosis in living organisms leads to the

A. increased cells
B. decreased cells
C. benign cells
D. malignant cells
Answer» B. decreased cells
46.

The third phase of the cell cycle is called

A. second gap
B. first gap
C. fourth gap
D. third gap
Answer» B. first gap
47.

The longest phase of meiosis is

A. prophase II
B. prophase I
C. prophase III
D. prophase IV
Answer» C. prophase III
48.

The apoptosis occurs in cells when it is

A. releasing carbon dioxide
B. transporting material
C. respiring
D. damaged
Answer» E.
49.

The examples of cells that do not enter the G0 phase during the life of an organism are

A. granum cells
B. epithelial cells
C. epidermal cells
D. stroma cells
Answer» C. epidermal cells
50.

The land plants that are not composed of xylem and phloem tissue are

A. Volvox and ferns
B. liverworts and mosses
C. ferns and mosses
D. mustard and cauliflower plants
Answer» C. ferns and mosses