LIFE PROCESS MCQS

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

Tags

NGSS.MS-LS1-6

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

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

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

Tags

NGSS.MS-LS1-7

The breakdown of pyruvate to give carbon-di-oxide,

water and energy takes place in:

• cytoplasm

• mitochondria

• chloroplast

• nucleus

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Digestion of starch starts from:

• Stomach

• Intestine

• Oesophagus

• Mouth

Tags

NGSS.MS-LS1-7