NCERT Class X Science Class: Chapter –6. Life Processer – Part-3

Download PDF of This Page (Size: 419K)

Question 13:

Which of the following is most appropriate for aerobic respiration?

(a)

(b)

(c)

(d)

Answer: D

Image the aerobic respiration

Image the Aerobic Respiration

Image the aerobic respiration

Question 14:

Which of the following statement(s) is (are) true about respiration?

(i) During inhalation, ribs move inward and diaphragm is raised

(ii) In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air

(iii) Hemoglobin has greater affinity for carbon dioxide than oxygen

(iv) Alveoli increase surface area for exchange of gases

(a) (i) and (iv)

(b) (ii) and (iii)

(c) (i) and (iii)

(d) (ii) and (iv)

Answer: D

Image alveoli, exchange of gases takes place

Image Alveoli, Exchange of Gases Takes Place

Image alveoli, exchange of gases takes place

Question 15:

Which is the correct sequence of air passage during inhalation?

(a)

(b)

(c)

(d)

Answer: D

Image the air passage during inhalation

Image the Air Passage During Inhalation

Image the air passage during inhalation

Question 16:

During respiration exchange of gases take place in

(a) Trachea and larynx

(b) Alveoli of lungs

(c) Alveoli and throat

(d) Throat and larynx

Answer: B

Image during respiration exchange of gases take place

Image During Respiration Exchange of Gases Take Place

Image during respiration exchange of gases take place

Question 17:

Which of the following statement (s) is (are) true about heart?

(i) Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs

(ii) Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs

(iii) Left atrium transfers oxygenated blood to right ventricle which sends it to different body parts

(iv) Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body

(a) (i)

(b) (ii)

(c) (ii) and (iv)

(d) (i) and (iii)

Answer: C

Developed by: