Life Process MCQ Ed.Cet 2025 PDF Download

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Life Process MCQ Ed.Cet. We covered all the Life Process MCQ Ed.Cet in this post for completely free that can be used to prepare for any competitive online exam.

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Life Process MCQ Ed.Cet for Students

The valve located at the start of the pulmonary artery in the right ventricle is the

a. tricuspid

b. bicuspid

c. mitral

d. pulmonary valve

Option d – pulmonary valve

The systemic aorta transports

a. oxygenated blood

b. lymph

c. deoxygenated blood

d. mixed blood

Option a – oxygenated blood

What is considered a normal human blood pressure reading?

a. 80/120

b. 100/120

c. 120/100

d. 120/80

Option d – 120/80

The chemical that helps prevent blood from clotting inside vessels is

a. haemoglobin

b. heparin

c. thyroxin

d. pepsin

Option b – heparin

Which vitamin plays a key role in blood clotting?

a. vitamin A

b. vitamin C

c. vitamin D

d. vitamin K

Option d – vitamin K

Hemophilia is classified as a

a. contagious disease

b. genetic condition

c. hereditary disorder

d. both 2 and 3

Option d – both 2 and 3

Which of the following is a hereditary condition?

a. cancer

b. leukemia

c. thalassemia

d. AIDS

Option c – thalassemia

Which plant tissue is responsible for transporting water?

a. mesophyll

b. phloem

c. xylem

d. parenchyma

Option c – xylem

Water from the soil enters root hairs through

a. diffusion

b. filtration

c. root pressure

d. osmosis

Option d – osmosis

How does water reach the top of tall trees like eucalyptus?

a. transpiration

b. root pressure

c. continuous water column in xylem

d. all the above

Option d – all the above

Food is distributed in plants by

a. xylem

b. phloem

c. bark

d. chlorenchyma

Option b – phloem

Vocal cords are located in the

a. larynx

b. pharynx

c. nasal cavity

d. trachea

Option a – larynx

The small sacs in the lungs responsible for gas exchange are called

a. alveolus

b. bronchi

c. bronchioles

d. air spaces

Option a – alveolus

Choose the correct statement

a. diaphragm contracts – chest cavity volume increases

b. diaphragm contracts – chest cavity volume decreases

c. diaphragm expands – chest cavity volume increases

d. diaphragm expands – chest cavity volume decreases

Option a – diaphragm contracts – chest cavity volume increases

Respiration is considered a catabolic reaction because it involves

a. breaking down complex food molecules

b. capturing light energy

c. creating chemical energy

d. storing energy

Option a – breaking down complex food molecules

Where is energy stored inside a cell?

a. nucleus

b. mitochondria

c. ribosome

d. cell wall

Option b – mitochondria

Cutaneous respiration occurs in

a. cockroach

b. amoeba

c. earthworm

d. butterfly

Option c – earthworm

At which temperature is the rate of respiration highest?

a. 0°C

b. 45°C

c. 100°C

d. 160°C

Option b – 45°C

Which part of the cell is mainly responsible for producing energy?

a. mitochondria

b. Golgi complex

c. vacuole

d. ribosome

Option a – mitochondria

The main product formed at the end of glycolysis is

a. pyruvic acid

b. acetic acid

c. lactic acid

d. abscisic acid

Option a – pyruvic acid

The net energy gain from converting glucose into pyruvic acid is

a. 2 ATP molecules

b. 36 ATP molecules

c. 4 ATP molecules

d. 38 ATP molecules

Option a – 2 ATP molecules

Cellular respiration takes place in the

a. cytoplasm and mitochondria

b. nucleus and mitochondria

c. chloroplast and mitochondria

d. mitochondria and vacuole

Option a – cytoplasm and mitochondria

Carbohydrates must be converted into which form for oxidation?

a. starch

b. cellulose

c. glucose

d. fats

Option c – glucose

Which of the following carries out only aerobic respiration?

a. muscles

b. yeast

c. tetanus bacteria

d. germinating seeds

Option d – germinating seeds

One way respiration differs from combustion is

a. it releases heat immediately

b. it releases heat gradually in stages

c. it starts with burning a substance

d. it begins with oxygen supply

Option b – it releases heat gradually in stages

Which molecule is referred to as the “energy currency” of the cell?

a. DTP

b. ATP

c. ADP

d. DDT

Option b – ATP

Muscular pain is mainly due to the buildup of

a. citric acid