Question # 1

......... is one of raw material for photosynthesis .

Choose an answer

Oxygen

Water

Carbon Dioxide

Nitrogen

Which one are the sites of protein synthesis?

Choose an answer

Nucleus

Mitochondria

Endoplasmic reticulum

Ribosomes

Goiter is a disease caused as a result of deficiencies of ........... .

Choose an answer

Iodine

Iron

Calcium

Phosphorus

Normal rate of heart beat in a healthy human being is ......... beats per minute.

Choose an answer

72

73

70

75

Males with two Y chromosomes have more .................. tendensies.

Choose an answer

Citizenship

Criminal

Good

None

Cytokinesis in a plant cell is characterized by:

Choose an answer

The equal division of homologous chromosomes

A pinching off of the cell membrane to divide the cell

The formation of a cell plate in the cytoplasm

The movement of the chromosomes from the metaphase plate

Lock and key model was proposed by:

Choose an answer

Emil Fischer

Melcher

Koshland

Saugeo

Micronutrients of plants are:

Choose an answer

Available in the soil only in small amounts

Required by plants in small amounts

Small molecules required by plants

Useful, but not required by plants

Important cause of species extinctions is:

Choose an answer

Habitat loss

Deforestaion

Over population

Both a and b

A species is a group of natural population which can:

Choose an answer

Interbreed and produce offsprings

Interbreed in nature and produce offspring

Interbreed and produce fertile offspring

Interbreed in nature and produce fertile offspring

How many molecules of CO₂ are produced when krebs cycle operates once?

Choose an answer

01

02

03

06

In which of the following gaseous exchange occur through stomata?

Choose an answer

The leaves and young stems

Wood stems and nature roots.

Young roots

The aquatic plants

Urine contains the least amount of.

Choose an answer

Urea

Sodium Ions

Water

Potassium Ion

How many genetically different kinds of gametes an individual with genotype AAbb can produce?

Choose an answer

1

2

4

9

E-Coil bacterium was made in.

Choose an answer

1970 AD

1977 AD

1975 AD

1980 AD

E.coli bacterium is capable of synthesizing the:

Choose an answer

insulin

human growth hormone

thymosin

beta-endorphin

The maintenance of internal body temperature is called.

Choose an answer

Osmoregulation

Thermoregulation

Excretion

Guttation

The sensitive layer of eye is:

Choose an answer

sclera

choroid

retina

iris

Which organism is used in fermentation for the preparation of glycerol.

Choose an answer

Aspergillus

Saccharomyces

Bacillus

Streptoccocus

The loss of water from plant surface in the form of vapours is called.

Choose an answer

Transpiration

Guttation

Excretion

Thermoregulation

Where does the gaseous exchange occur in humans?

Choose an answer

Pharynx

Trachea

Bronchi

Alveoli

The type of symbiotic relationship in which one member get benefit and other is harmed is called.

Choose an answer

Parasitism

Mutualism

Commensalism

Predation

More Classes

Other Links

Biology Life Science Test Easy Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer