Explore topic-wise MCQs in Current Affairs.

This section includes 2103 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

2051.

Ordinary table salt is sodium chloride. What is baking soda?

A. Potassium chloride
B. Potassium carbonate
C. Potassium hydroxide
D. Sodium bicarbonate
Answer» E.
2052.

Pollination is best defined as

A. transfer of pollen from anther to stigma
B. germination of pollen grains
C. growth of pollen tube in ovule
D. visiting flowers by insects
Answer» B. germination of pollen grains
2053.

Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to

A. angiosperms
B. gymnosperms
C. monocotyledons
D. dicotyledons
Answer» C. monocotyledons
2054.

If heat gain center of the hypothalamus is activated, the control mechanism includes all, but,

A. vasoconstriction
B. Less convection
C. less radiation
D. less metabolic activities
Answer» E.
2055.

Excess water and wastes travel out along the nephron to the

A. ureter
B. connecting tubule
C. collecting tubule
D. renal pelvis
Answer» D. renal pelvis
2056.

Very low concentration of substances can be measured through

A. sphygmomanometer
B. biosensors
C. x-rays
D. radioactive isotopes
Answer» C. x-rays
2057.

Kidney tubules are also known as

A. collecting tubules
B. renal pelvis
C. ureter
D. nephrons
Answer» E.
2058.

The term cell was introduced in

A. 1628
B. 1667
C. 1768
D. 1776
Answer» C. 1768
2059.

A darkly stained body with in a nucleus without any prominent membranous boundary is

A. nucleolus
B. vacuole
C. ribosomes
D. mitochondria
Answer» B. vacuole
2060.

No one has been able to develop a mixture that can be called as

A. Cytoplasm
B. Protoplasm
C. Plastoplasm
D. Chloroplast
Answer» C. Plastoplasm
2061.

Conversion of glucose to glycogen occurs in

A. kidneys
B. liver
C. small intestine
D. pancreas
Answer» C. small intestine
2062.

An extreme case of muscle wasting is the damage to

A. brain
B. liver
C. stomach
D. heart
Answer» E.
2063.

The purpose of cambium cells is to divide to form

A. pith cells
B. companion cells
C. enhance stem thickness
D. vessel if stem gets damaged
Answer» D. vessel if stem gets damaged
2064.

Prokaryotic cells have a specialized material with them called as

A. peptidoglycan/murein
B. pectin
C. peptidoglucose
D. peptidoaminose
Answer» B. pectin
2065.

A chromosome is composed of a DNA and

A. lipids
B. proteins
C. gene
D. sugars
Answer» C. gene
2066.

Structural and functional unit of life is called

A. cell
B. tissues
C. organelle
D. DNA
Answer» B. tissues
2067.

Storage of vital chemicals is

A. cytoplasm
B. mitochondria
C. Golgi complex
D. ribosome
Answer» B. mitochondria
2068.

Mitochondria extracts energy from food and convert it into energy in form of

A. ADP
B. ATP
C. AMP
D. AND
Answer» C. AMP
2069.

Death or mental retardation takes place if accumulation happens in

A. somatic cells
B. brain cells
C. meristemetic cells
D. sensory cells
Answer» C. meristemetic cells
2070.

In a normal human being number of chromosomes is

A. 23
B. 46
C. 53
D. 26
Answer» C. 53
2071.

Pigments containing bodies which are bounded by membrane are called

A. plastids
B. chlorophyll
C. chloroplast
D. hemoglobin
Answer» B. chlorophyll
2072.

In word Lysosoma, 'lyso' means splitting and 'soma' means

A. cell
B. body
C. tissue
D. organic
Answer» C. tissue
2073.

Phagocytosed food is digested with help of enzymes which are present in

A. ribosome
B. lysosomes
C. mitochondria
D. Golgi complex
Answer» C. mitochondria
2074.

Total salt content in blood is about

A. 1.85 to 1.9%
B. 11.85 to 11.9%
C. 2.85 to 2.9%
D. 0.85 to 0.9%
Answer» E.
2075.

The total number of pairs of Peripheral nerves in man are

A. 41
B. 42
C. 43
D. 44
Answer» D. 44
2076.

The rate of heartbeat is accelerated by the hormone

A. adrenaline
B. acetylcholine
C. thyroxine
D. pituitrin
Answer» B. acetylcholine
2077.

What do eukaryotic cells have that prokaryotic cells do not?

A. Nucleus
B. Cytoplasm
C. Ribosomes
D. DNA
Answer» B. Cytoplasm
2078.

Agrostology is the study of

A. Seed of oil
B. Crop
C. Crop
D. Fruits
Answer» D. Fruits
2079.

Which of the following is a mixed gland

A. Pituitary
B. Adrenal
C. Pancreas
D. Ovary
Answer» D. Ovary
2080.

During rainy season wooden doors are difficult to open or closure because of ?

A. Imbibition
B. Plasmolysis
C. Diffusion
D. Osmosis
Answer» B. Plasmolysis
2081.

Tissue in which cells have lost the capacity of cell division

A. Mesristmatic tissue
B. Permanent tissue
C. Both a and b
D. None of these
Answer» C. Both a and b
2082.

The sex of a newborn baby is determined by the chromosome inherited from

A. The Father
B. The Mother
C. The Father's Father
D. Both A & B
Answer» B. The Mother
2083.

The gland that is present close to Trachea

A. Pancreas
B. Liver
C. Adrrenal
D. Thyroid
Answer» E.
2084.

Botany is also known as

A. Phytology
B. Phycology
C. Pedology
D. Plantophyta
Answer» B. Phycology
2085.

From the following pairs, find the one which is correctly matched?

A. Scurvy- Thiamine
B. Tuberculosis- ATS
C. Tetanus- BCG
D. Malaria- Chloroquine
Answer» E.
2086.

Which of the following is an Autotroph?

A. Fish
B. Algae
C. Butterfly
D. Mushroom
Answer» C. Butterfly
2087.

Tikka disease is related with the crop:

A. Musturd
B. Paddy
C. Ground nut
D. All of these
Answer» D. All of these
2088.

Vivipary is defined as germination

A. during storage
B. within the fruit
C. with cotyledons coming out of soil
D. with cotyledons remaining inside the soil
Answer» C. with cotyledons coming out of soil
2089.

The hormone that helps in Parthenocarpy

A. Abscisic acid
B. Gibberellin
C. Ethylene
D. Cytokinin
Answer» C. Ethylene
2090.

The outer membrane that covers the brain is

A. Myelin sheath
B. Dura mater
C. Arachnoid membrane
D. Pia mater
Answer» C. Arachnoid membrane
2091.

Nuclear membrane is absent in

A. Volvox
B. Penicillium
C. Agaricus
D. Nostoc
Answer» E.
2092.

Hardest Part of the Human Body?

A. Tooth Enamel
B. Femur
C. Temporal bone of skull
D. Knee bone
Answer» B. Femur
2093.

Number of eyes found in Earthworm.........

A. One
B. Many
C. No eye
D. Two
Answer» D. Two
2094.

Name the blood cells in which nucleus is absent

A. Lymphocytes
B. Blood Platelets
C. Monocytes
D. Eosinophils
Answer» C. Monocytes
2095.

Bone deformities occur due to the excess intake of

A. Phosphorus
B. Potassium
C. Fatty acid
D. Fluorine
Answer» E.
2096.

The phenomenon of summer sleep by animals is called

A. hibernation
B. aestivation
C. laziness
D. lethargy
Answer» C. laziness
2097.

The corner of the cells of collenchyma tissue in plant are thickened due to deposition of _____

A. Lignin and suberin
B. Suberin and cutin
C. Cellulose and pectin
D. Chitin and lignin
Answer» D. Chitin and lignin
2098.

The energy released by 1 gram of glucose is

A. 6 kcal
B. 4 kcal
C. 5 kcal
D. 3kcal
Answer» C. 5 kcal
2099.

13 - Chambered heart occurs in

A. Leech
B. Earthworm
C. Snail
D. Cockroach
Answer» E.
2100.

Animal without red blood cells

A. Frog
B. Earthworm
C. Snake
D. Peacock
Answer» C. Snake