Explore topic-wise MCQs in Biology.

This section includes 371 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

251.

Average

A. 100 days
B. 90 days
C. 120 days
D. None of these
Answer» D. None of these
252.

Contractile proteins

A. bones
B. blood
C. muscles
D. cartilage
Answer» D. cartilage
253.

Cells

A. phloem
B. xylem
C. cambium
D. medullary ray
Answer» D. medullary ray
254.

Which one of the following is modification of

A. Fibres found in phloem
B. Tracheids
C. Vessel
D. Chlorenchyma
Answer» E.
255.

Bone matrix

A. fluoride and calcium
B. calcium and phosphorus
C. calcium and potassium
D. phosphorus and potassium
Answer» C. calcium and potassium
256.

Blood and lymph

A. muscular tissue
B. epithelial tissue
C. connective tissue
D. permanent tissue
Answer» D. permanent tissue
257.

Which one of the following is not a constituent of cell

A. Cholesterol
B. Glycolipids
C. Proline
D. Phospholipids
Answer» D. Phospholipids
258.

After entering the human body through

A. Spinal chord
B. Blood
C. Liver
D. Spleen
Answer» D. Spleen
259.

Which of the following groups is present in

A. Mitochondria, Cell membrane, Cell wall, Cytoplasm
B. Chloroplasts, Cytoplasm, Vacuole, Nucleus
C. Nucleus, Cell membrane, Mitochondria, Cytoplasm
D. Vacuole, Cell membrane, Nucleus, Mitochondria
Answer» D. Vacuole, Cell membrane, Nucleus, Mitochondria
260.

Which one among the following completes the given statement correctly ?

A. glucose is broken down into glycerol
B. glucose is converted into glycogen
C. glucose is broken down into carbon dioxide and water
D. proteins are broken down into amino acids
Answer» E.
261.

An individual whose blood type is

A. B or A
B. AB or A
C. A or O
D. AB or B
Answer» C. A or O
262.

Sickle-cell anemia

A. white blood cell
B. red blood cell
C. thrombocytes
D. blood plasma composition
Answer» C. thrombocytes
263.

Carbohydrates

A. cellulose and glucose respectively
B. starch and glycogen respectively
C. starch and glucose respectively
D. cellulose and glycogen respectively
Answer» C. starch and glucose respectively
264.

Leishmania,

A. budding
B. binary fission
C. multiple fission
D. sporogony
Answer» C. multiple fission
265.

A typical human

A. 12
B. 14
C. 16
D. 24
Answer» B. 14
266.

Among the given

A. Calcium
B. Protein
C. Carbohydrate
D. Vitamin C
Answer» E.
267.

Jaundice

A. incomplete metabolism of biliverdin
B. complete metabolism of biliverdin
C. incomplete metabolism of bilirubin
D. complete metabolism of bilirubin
Answer» D. complete metabolism of bilirubin
268.

Crocodiles

A. head
B. stomach
C. tail
D. arteries
Answer» D. arteries
269.

Stem Cell Therapy (SCT)

A. Kidney failure
B. Cancer
C. Brain injury
D. Vision impairment
Answer» E.
270.

In which one of the following

A. RBCs
B. Blood Platelets
C. Blood Plasma cells
D. Donnan's membrane
Answer» D. Donnan's membrane
271.

A surge of which

A. Luteinizing hormone
B. Estrogen
C. Follicle stimulating hormone
D. Progesterone
Answer» B. Estrogen
272.

The main function of the

A. transport minerals and water from the roots to the leaves
B. act as a membrane impermeable to water and gas
C. transport food from the leaves to the other parts of the plant
D. protect the plant from herbivorous animals
Answer» D. protect the plant from herbivorous animals
273.

Which one of the following processes takes place in lakes during

A. Rapid destruction of algal growth
B. Execessive availability of dissolved oxygen
C. Loss of dissolved nutrients from water
D. Excessive entry of nutrient into water
Answer» E.
274.

Which one of the following is considered as a cell within a cell ?

A. Ribosome
B. Chloroplast
C. Lysosome
D. Golgi complex
Answer» C. Lysosome
275.

Sandalwood tree

A. total root parasite
B. total stem parasite
C. stem parasite
D. partial root parasite
Answer» E.
276.

Coconut water,

A. pericarp
B. endosperm
C. Siutellum
D. soft drink
Answer» C. Siutellum
277.

A characteristic

A. a chloro compound
B. a fluarine compound
C. a sulphur compound
D. acetic acid
Answer» D. acetic acid
278.

Mushrooms

A. fungus
B. alga
C. fern
D. moss
Answer» B. alga
279.

Censor mechanism

A. Pea
B. Poppy
C. Cotton
D. Maize
Answer» C. Cotton
280.

Kuttu flour

A. Tapioca
B. Fagopyrum
C. Plantago
D. Eleusine
Answer» C. Plantago
281.

In plants, which one of the following tissues is dead ?

A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. Phloem
Answer» D. Phloem
282.

Which of the following plant hormone is mainly responsible for

A. Cytokinin
B. Abscissic acid
C. Ethylene
D. None of these
Answer» D. None of these
283.

Which one of following is a useful functional association between

A. Biofertilizer
B. Coralloid root
C. Lichen
D. Mycorrhiza
Answer» E.
284.

Which one of the following is not an essential

A. Boron
B. Zinc
C. Sodium
D. Copper
Answer» D. Copper
285.

Noscapine

A. Poppy
B. Basil
C. Eucalyptus
D. Ephedra
Answer» B. Basil
286.

Which plant's

A. Cinchona
B. Tendu
C. Opium
D. Areca
Answer» C. Opium
287.

Saffron

A. Roots
B. Stem
C. Leaves
D. Stigma and Style
Answer» E.
288.

Apart from

A. Arteether
B. Glace
C. Lutivit
D. Cineraria
Answer» B. Glace
289.

Photosynthesis

A. Trees
B. Algae
C. Fungi
D. Bacteria
Answer» E.
290.

Bamboo

A. Tree
B. Grass
C. Shrub
D. Herb
Answer» C. Shrub
291.

Tallest terrestrial tree

A. Deodar
B. Eucalyptus
C. Sequoia
D. Pine
Answer» D. Pine
292.

Gregor Johann Mendel

A. Edible pea
B. Wild pea
C. Garden pea
D. Pigeon pea
Answer» D. Pigeon pea
293.

Cloves,

A. Seeeds
B. Fruits
C. Flower buds
D. Leaves
Answer» D. Leaves
294.

Which of the following plants

A. Sugarcane
B. Peanut
C. Cycas
D. Almond
Answer» D. Almond
295.

Th suitable conditions in which the rate of

A. Low speed of wind
B. High humidity
C. Low humidity and high temperature
D. Excess amount of water in the soil
Answer» D. Excess amount of water in the soil
296.

Process by which

A. Carbohydrolysis
B. Metabolic synthesis
C. Photosynthesis
D. Photorespiration
Answer» D. Photorespiration
297.

The device to

A. Hygrometer
B. Crescometer
C. Potometer
D. Clinometer
Answer» D. Clinometer
298.

The process of

A. Root
B. Stem
C. Leaf
D. Entire 'plants' surface
Answer» D. Entire 'plants' surface
299.

At which region of the

A. Red and Blue
B. Green and Yellow
C. Blue and Orange
D. Violet and Orange
Answer» B. Green and Yellow
300.

Plant which

A. Mesophytes
B. Lithophytes
C. Sclerophytes
D. Oxylophytes
Answer» C. Sclerophytes