Match the items of Column A with items of Column B. Column A Column B (i) Cockroach (A) Cell membrane (ii) Earthworm (B) Trachea (iii) Prawn and fish (C) Lungs (iv) Amoeba (D) Gills (v) Birds (E) Moist skin

(i) - (B) The respiratory system of cockroach is through the network trachea. They respire through the small openings called spiracles. (ii) - (E) Earthworm belongs to the kingdom Annelida and respires using their moist skin due to the absence of lungs. (iii) - (D) Prawn and fish use gills for respiration. (iv) - (A) Amoeba respire through the cell membrane. It gets oxygen gas dissolved in surrounding water by the process of diffusion. (v) - (C) Birds respire through lungs which is the main respiratory organ of humans. Column A Column B (i) Cockroach (B) Trachea (ii) Earthworm (E) Moist skin (iii) Prawn and fish (D) Gills (iv) Amoeba (A) Cellular membrane (v) Birds (C) Lungs

Match the items of Column A with items of Column B. Column A Column B (i) Energy currency (A) Haemoglobin (ii) Powerhouse of the cell (B) Lactic acid (iii) Respiratory pigment (C) ATP (iv) Exchange of gases (D) Mitochondria (v) Muscular cramps (E) Alveoli

(i)-(C) Adenosine triphosphate (ATP) is the energy currency of the cell as it is the molecule that all living organisms use for energy. (ii)-(D) Mitochondria are called a powerhouse of the cell as the energy required for various life processes is released by it in the form of ATP. (iii)-(A) Haemoglobin is a respiratory pigment as it increases the oxygen-carrying capacity of the blood. (iv)-(E) Exchange of gasses takes place in the alveoli of lungs. (v)-(B) Muscular cramps are the result of the accumulation of lactic acid. The anaerobic breakdown of glucose leads to the formation of lactic acid in the muscles. Column A Column B (i) Energy currency (C) ATP (ii) Powerhouse of the cell (D) Mitochondria (iii) Respiratory pigment (A) Haemoglobin (iv) Exchange of gases (E) Alveoli (v) Muscular cramps (B) Lactic acid

E M B I B E

SCIENCE BIOLOGY Class-10>Chapter 1 - Life Processes>KNOWLEDGE BASKET 1 [B]>Q II

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10th CBSE

IMPORTANT

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In aquatic animals, it is easier to get oxygen than a terrestrial animal.

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Important Questions on Life Processes

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10th CBSE

IMPORTANT

SCIENCE BIOLOGY Class-10>Chapter 1 - Life Processes>KNOWLEDGE BASKET 1 [B]>Q II

Haemoglobin is a respiratory pigment.

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10th CBSE

IMPORTANT

SCIENCE BIOLOGY Class-10>Chapter 1 - Life Processes>KNOWLEDGE BASKET 1 [B]>Q II

Yeast can respire in the absence of oxygen also.

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SCIENCE BIOLOGY Class-10>Chapter 1 - Life Processes>KNOWLEDGE BASKET 1 [B]>Q II

Exhaled air has more carbon dioxide than inhaled air.

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SCIENCE BIOLOGY Class-10>Chapter 1 - Life Processes>KNOWLEDGE BASKET 1 [B]>Q III

Match the items of Column A with items of Column B.

Column A	Column B
(i) Cockroach	(A) Cell membrane
(ii) Earthworm	(B) Trachea
(iii) Prawn and fish	(C) Lungs
(iv) Amoeba	(D) Gills
(v) Birds	(E) Moist skin

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10th CBSE

IMPORTANT

SCIENCE BIOLOGY Class-10>Chapter 1 - Life Processes>KNOWLEDGE BASKET 1 [B]>Q III

Match the items of Column A with items of Column B.

Column A	Column B
(i) Energy currency	(A) Haemoglobin
(ii) Powerhouse of the cell	(B) Lactic acid
(iii) Respiratory pigment	(C) ATP
(iv) Exchange of gases	(D) Mitochondria
(v) Muscular cramps	(E) Alveoli