Download PDF
Free download in PDF Breathing and Exchange of Gases Multiple Choice Questions (MCQs) with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
In mature mammalian erythrocytes the respiration is
[A]
aerobic
[B]
anaerobic
[C]
sometimes aerobic and sometimes anaerobic
[D]
absent
(2)
Skin of man cannot act as respiratory organ because
[A]
it is dry
[B]
it is not thin
[C]
it is not permeable to O2 and CO2
[D]
all of these
(3)
Which of the following is not a character of respiratory surface?
[A]
thin,permeable to gases
[B]
extensive
[C]
least vascular
[D]
moist
(4)
Ring like cartilage of larynx is known as
[A]
thyroid cartilage
[B]
arytenoid cartilage
[C]
cricoid cartilage
[D]
cartilage of santonni
Answer: cricoid cartilage
(5)
Lungs are enclosed in
[A]
peritoneum
[B]
perichondrium
[C]
pericardium
[D]
pleural membranes
Answer: pleural membranes
(6)
Which of the following reflex is involved to prevent excessive inflation of lungs?
[A]
stretch reflex
[B]
hering-breuer’s reflex
[C]
withdrawal reflex
[D]
conditioned reflex
Answer: hering-breuer’s reflex
(7)
The ventilation movements of lungs in mammals are governed by
[A]
muscular walls of lung
[B]
diaphragm
[C]
costal muscles
[D]
both B and C
(8)
Which of the following is true for aerobic respiration in humans?
[A]
Glucose + water = carbon dioxide + water
[B]
Glucose + oxygen = Carbon dioxide + water
[C]
Glucose = Carbon dioxide + water
[D]
None of the mentioned
Answer: Glucose + oxygen = Carbon dioxide + water
(9)
Respiration results in ___________
[A]
Release of oxygen
[B]
Anabolism
[C]
Release of carbon dioxide
[D]
Transfer of carbon dioxide
Answer: Release of carbon dioxide
(10)
During hibernation frogs respire through ________
[A]
Gills
[B]
Lungs
[C]
Tympanum
[D]
Integument
(11)
In which of the following animal respiration occur without any respiration organs?
[A]
Frog
[B]
Fish
[C]
Cockroach
[D]
Earthworm
(12)
Fishes respire through skin.
(13)
The product of glycolysis is ________
[A]
Pyruvate
[B]
Lactic acid
[C]
NADH
[D]
Acetyl coA
(14)
Where in the cell most of the aerobic respiration takes place?
[A]
Mitochondria
[B]
Nucleus
[C]
Ribosome
[D]
Cytoplasm
(15)
Which of the following occurs both in photosynthesis and respiration?
[A]
Krebs cycle
[B]
Glycolysis
[C]
Calvin cycle
[D]
Chemiosmosis
(16)
Which of the following is true for anaerobic respiration?
[A]
Glucose + lactic acid = carbon dioxide + water
[B]
Glucose= Lactic acid + carbon dioxide
[C]
Glucose gives lactic acid
[D]
None of the mentioned
Answer: Glucose gives lactic acid
(17)
Catabolic processes ___________
[A]
Make complex molecules
[B]
Break complex molecules
[C]
Occur in autotrophs
[D]
Occur in heterotrophs
Answer: Make complex molecules
(18)
Respiration is controlled by _________
[A]
Cerebrum
[B]
Cerebellum
[C]
Medulla oblongata
[D]
Hypothalamus
Answer: Medulla oblongata
(19)
The majority of carbon dioxide produced by the body is transported to lungs _______
[A]
Dissolved in blood
[B]
As carbonates
[C]
As bicarbonates
[D]
Attached to hemoglobin
(20)
Which one of the following mammalian cells are not capable of metabolizing glucose to carbon dioxide aerobically?
[A]
RBC
[B]
WBC
[C]
Liver cells
[D]
Unstraited muscle cells
Take Mock Tests