NEET Biology Life Processes Respiration MCQs Set 01

Multiple Choice Questions (MCQs) for NEET Biology: Life Processes Respiration

Access targeted multiple-choice questions for Life Processes Respiration designed to align with the latest NEET academic syllabus for NEET Biology. These objective practice sets help students evaluate their conceptual understanding and improve exam readiness.

Practice Life Processes Respiration MCQs for NEET Biology

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Question. Respiration is the process in which –
(A) energy is stored in the form of ADP
(B) energy is released and stored in the form of ATP
(C) energy is not released at all
(D) energy is used up
 
Answer: B
 
Question. Which of the following is the source of respiration –
(A) Stored food
(B) Fats
(C) Glucose
(D) Proteins
 
Answer: A
 
Question. The form of energy used in respiration is –
(A) Chemical energy
(B) Electrical energy
(C) Mechanical energy
(D) Radiant energy
 
Answer: A
 
Question. Respiratory structures in the insects are –
(A) Gills
(B) Skin
(C) Lungs
(D) Trachea
 
Answer: D
 
Question. The narrowest and most numberous tubes of lungs are termed as –
(A) Bronchus
(B) Bronchioles
(C) Alveoli
(D) None of these
 
Answer: B
 
Question. A normal man respires in a minute –
(A) 10-15 times
(B) 14-18 times
(C) 20-25 times
(D) 25-30 times
 
Answer: D
 
Question. In anaerobic respiration –
(A) O2 is given out
(B) CO2 is given out
(C) CO2 is taken in
(D) O2 is taken in
 
Answer: B
 
Question. The exchange of gases [O2 and CO2] in a mammal takes place in –
(A) Trachea
(B) Bronchi
(C) Bronchioles
(D) Alveoli
 
Answer: D
 
Question. During inspiration muscles of diaphragm –
(A) Contracts
(B) Expands
(C) No effect
(D) Coiled like string
 
Answer: A
 
Question. Expiration involves –
(A) Relaxation of diaphragm and intercostal muscles
(B) Contraction of diaphragm and intercostal muscles
(C) Contraction of diaphragm muscles
(D) Contraction of intercostal muscles 
 
Answer: A
 
Question. The structure which prevent the entry of food into respratory tract is –
(A) Pharynx
(B) Larynx
(C) Glottis
(D) Epiglottis
 
Answer: D
 
Question. In fever breathing rate –
(A) Increase
(B) Decrease
(C) Stop
(D) None
 
Answer: A
 
Question. Mammalian lungs are –
(A) Hollow
(B) Solid and spongy
(C) Spongy
(D) None
 
Answer: B
 
Question. In respiration, air passes through –
(A) Pharynx, Nasal cavity, Larynx, Trachea,Bronchi, Bronchiole, Lungs
(B) Nasal cavity, Pharynx, Larynx, Trachea,Bronchi, Bronchiole, Lungs
(C) Larynx, Nasal cavity, Pharynx, Trachea,Lungs
(D) Larynx, Pharynx, Trachea, Lungs
 
Answer: A
 
Question. Rate of respiration is directly affected by –
(A) CO2 concentration
(B) O2 in trachea
(C) Concentration of O2
(D) Diaphragm expansion
 
Answer: C
 
Question. Evolution of CO2 is more than in take of oxygen when:
(A) fats are respired
(B) glucose is respired
(C) sucrose is respired
(D) organic acids are respired
 
Answer: D
 
Question. Respiratory structures in the insects are -
(A) Gills
(B) Skin
(C) Lungs
(D) Trachea
 
Answer: D
 
Question. The narrowest and most numberous tubes of lungs are termed as -
(A) Bronchus
(B) Bronchioles
(C) Alveoli
(D) None of these
 
Answer: B
 
Question. A normal man respires in a minute -
(A) 10-15 times
(B) 14-18 times
(C) 20-25 times
(D) 25-30 times
 
Answer: B
 
Question. In anaerobic respiration -
(A) O2 is given out
(B) CO2 is given out
(C) CO2 is taken in
(D) O2 is taken in
 
Answer: B
 
Question. The exchange of gases (O2 and CO2) in a mammal take place in -
(A) Trachea
(B) Bronchi
(C) Bronchioles
(D) Alveoli
 
Answer: D
 
Question. During inspiration muscles of diaphragm-
(A) Contracts
(B) Expands
(C) No effect
(D) Coiled like string
 
Answer: A
 
Question. Expiration involves -
(A) Relaxation of diaphragm and intercostal muscles
(B) Contraction of diaphragm and intercostal muscles
(C) Contraction of diaphragm muscles
(D) Contraction of intercostal muscles
 
Answer: A
 
Question. The structure which prevent the entry of food into respriatory tracts is -
(A) Pharynx
(B) Larynx
(C) Glottis
(D) Epiglottis
 
Answer: D
 
Question. In fever breathing rate -
(A) Increase
(B) Decrease
(C) Stop
(D) None
 
Answer: A
 
Question. Mammalian lungs are -
(A) Hollow
(B) Solid and spongy
(C) Spongy
(D) None
 
Answer: B
 
Question. Haemolgobin is -
(A) Vitamin
(B) Skin pigment
(C) Blood carrier
(D) Respiratory pigment
 
Answer: D
 
Question. If CO2 concentration increases in blood then breathing will-
(A) Increases
(B) Decreases
(C) Stop
(D) Remain unchanged
 
Answer: A
 
Question. In respiration, air passes through -
(A) Pharynx, Nasal cavity, Larynx, Trachea,Bronchi, Bronchiole, Lungs
(B) Nasal cavity, Pharynx, Larynx, Trachea,Bronchi, Bronchiole, Lungs
(C) Larnyx, Nasal cavity, Pharynx, Trachea,Lungs
(D) Larynx, Pharynx, Trachea, Lungs
 
Answer: B
 
Question. In which of the following animals,respiration occurs without respiratory organ ?
(A) Frog
(B) Fish
(C) Cockroach
(D) Earthwarm
 
Answer: D
 
Question. Rate of respiration is directly affected by -
(A) CO2 concentration
(B) O2 in trachea
(C) Concentration of O2
(D) Diaphragm expansion
 
Answer: A
 
Question. The maximum bonding of haemoglobin is with -
(A) Carbon monoxide
(B) Carbondioxide
(C) Oxygen
(D) Ammonia
 
Answer: A
 
Question. Most of the carbondioxide is carried in the blood as -
(A) Bicarbonates
(B) Carbon monoxide
(C) Carbonic acid
(D) Carbonates
 
Answer: A
 
Question. The exchange of gases between the external air and the blood occurs in the
(A) bronchus
(B) bronchiole
(C) trachea
(D) alveoli
 
Answer: D
 
Question. Anaerobic respiration is likely to occur in
(A) Ants
(B) Earthworms
(C) Echinoderms
(D) Tapeworms
 
Answer: D
 
Question. In humans lungs, the lobes are
(A) 2 in left and 3 in right lungs
(B) 3 in left and 2 in right lungs
(C) 3 in each lung
(D) 2 in each lung
 
Answer: A
 
Question. Oxygen is transported in vertebrates as
(A) dissolved in plasma
(B) combined with Haemoglobin
(C) dissolved in cytoplasm of erythrocytes
(D) absorbed over the RBC
 
Answer: B
 
Question. Respiration is controlled by -
(A) cerebrum
(B) cerebellum
(C) Medulla oblongata
(D) olfactory lobe
 
Answer: C
 
Question. Respiration by lungs is called as -
(A) pulmonary respiration
(B) cutical respiration
(C) bronchial respiration
(D) cutaneous respiration
 
Answer: A
 
Question. During expiration, the diaphragm becomes
(A) oblique
(B) normal
(C) flattened
(D) dome- shaped
 
Answer: D
 
Question. In human body, blood is oxygenated and purified in the -
(A) liver
(B) kidneys
(C) heart
(D) lungs
 
Answer: D
 
Question. In mammals the body cavity is partitioned into thoracic and abdominal parts by
(A) liver
(B) lungs
(C) ribs
(D) diaphragm
 
Answer: D
 
Question. Which function is not performed by lungs?
(A) Elimination of carbon dioxide
(B) Provision of oxygen
(C) Purification of blood
(D) removal of nitrogenous waste
 
Answer: D
 
Question. The end product of anaerobic respiration is -
(A) CO2
(B) H2O
(C) ethyl alcohol
(D) A and C both
 
Answer: D
 
Question. Amount of which of the following components in air does not change in process of respiration
(A) Oxygen
(B) Carbon di- oxide
(C) Nitrogen
(D) Water Vapour
 
Answer: C
 
Question. Given below are some statements.
(a) The oxygen dependent respiration is called aerobic respiration.
(b) The requirement of water for photosynthesis is not essential.
(c) Gymnosperms such as pines are the vascular plants which produce seeds but no fruits.
(d) Root hairs provide increased surface area for gas exchange and absorption of water in plants.
Which one of the following alternatives is correct ?
(A) a is true, b is false
(B) b is true, a is false
(C) b is true, c is false
(D) d is true, a is false
 
Answer: A
 
Question. Glottis is a passage for
(A) food
(B) air
(C) both of these
(D) none of these
 
Answer: B
 
Question. The common phase between aerobic and anaerobic respiration is called
(A) glycolysis
(B) Kreb’s cycle
(C) tricarboxylic acid cycle
(D) none of these
 
Answer: A
 
Question. Breathing rate in man is controlled by a part of the brain called
(A) thalamus
(B) hypothalamus
(C) medullar oblongata
(D) cerebellum
 
Answer: C

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