No student devices needed. Know more
15 questions
How many pairs of salivary glands are found in
humans?
two
three
six
four
Blood vessel carry blood from lungs to heart through:
Pulmonary artery
Pulmonary vein
Coronory artery
None of these
From which structure, the free oxygen gas produced
during photosynthesis is released?
Epidermis
Stomata
Cortex
Guard cell
Villi present on the internal wall of intestine help in
the
emulsification of fats
breakdown of proteins
absorption of digested food
digestion of carbohydrates
During vigorous physical exercise, lactic acid is formed
from glucose inside the muscle cells because
there is lack of oxygen
there is lack of water
there is excess of carbon dioxide
none of the above
Which of the following is responsible for the transport
of water and minerals from roots to aerial parts of the
plant?
Xylem
Phloem
cortex
Both (a) and (b)
Which chambers of human heart contain oxygenated
blood?
Left atrium and left ventricle
Left atrium and right ventricle
Right atrium and left ventricle
Right atrium and right ventricle
The process of conversion of glucose into pyruvic acid
occurs in
mitochondria
Cytoplasm
outside the cell
chloroplast
The breakdown of pyruvate to give carbon-di-oxide,
water and energy takes place in:
cytoplasm
mitochondria
chloroplast
nucleus
Digestion of starch starts from:
Stomach
Intestine
Oesophagus
Mouth
The process of transpiration in plants helps in:
Opening of stomata
Absorption of CO2 from atmosphere
Upward conduction of water and minerals
Absorption of O2 from atmosphere
What is the mode of nutrition in fungi?
Autotrophic
Heterotrophic
Saprophytic
Parasitic
Which cell organelle is involved in breakdown of
glucose to produce energy for metabolic activities?
Mitochondria
Chloroplast
Endoplasmic reticulum
Golgi body
What is the final product of photosynthesis?
Protein
Fat
Starch
Mineral salt
Instrument used to measure blood pressure is
barometer
thermometer
anemometer
sphygmomanometer
Explore all questions with a free account