Biology - MCQs with answers - Part III
Q1. In the cell the food (glucose) is broken down into(a) Oxygen, water and energy
(b) Nitrogen and water
(c) Carbon dioxide, water and energy
(d) Carbon dioxide only
View Answer / Hide AnswerANSWER: (c) Carbon dioxide, water and energy
Explanation- In the cell breakdown of glucose occurs with the use of oxygen which is called aerobic respiration.
(a) It respire aerobically which breaks down glucose producing alcohol.
(b) It respire in the absence of oxygen which breaks down glucose into alcohol.
(c) It produces alcohol without breaking down glucose.
(d) It is multi celled organism and produces alcohol .
View Answer / Hide AnswerANSWER: (b) It respire in the absence of oxygen which breaks down glucose into alcohol.
Explanation- Yeast is single celled organism they respire anaerobically and during this process yield alcohol.
(a) Amino acids
(b) Fatty acids
(c) Carbon dioxide
(d) Lactic acid
View Answer / Hide AnswerQ4. During breathing the unwanted particles such as smoke,dust,pollen etc get trapped in(a) Trachea
(b) Pharynx
(c) Nasal cavity
(d) Lungs
View Answer / Hide AnswerANSWER: (c) Nasal cavity
Explanation- The unwanted particles trapped in the hair present in our nasal cavity.
(a) 19-22 times in a minute
(b) 25-30 times in a minute
(c) 15-18 times in a minute
(d) 30-35 times in a minute
View Answer / Hide AnswerANSWER: (c) 15-18 times in a minute
(a) Small intestine
(b) Large intestine
(c) Stomach
(d) Pancreas
View Answer / Hide AnswerANSWER: (a) Small intestine
Explanation- Blood transport digested food from small intestine to the other parts of body.
(a) Plasma
(b) White blood cells
(c) Platelets
(d) Red blood cells
View Answer / Hide AnswerANSWER: (d) Red blood cells
Explanation- Red blood cells contain a red pigment called haemoglobin which binds oxygen and transport to all the parts of body.
(1) Arteries carry carbon dioxide rich blood from the heart to lungs.
(2) Veins are the vessels which carry carbon dioxide rich blood
from all parts of the body back to the lungs.
(3) Arteries carry oxygen rich blood from heart to all parts of the body.
(4) Veins have thick walls.
Which of the above statements is correct? (a) 1 and 2
(b) 2 and 3
(C) 3 and 4
(d) 1 and 4
View Answer / Hide AnswerQ9.A resting person usually has a pulse rate between(a) 65-72
(b) 72-80
(C) 62-75
(d) 72-74
View Answer / Hide AnswerANSWER: (b) 72-80
Explanation:-Normal pulse rate of healthy person.
(1) Pulmonary artery carries blood from the heart .It carries carbon dioxide rich blood to the lungs.
(2) Pulmonary vein carries oxygen rich blood from the lungs to the heart.
Which of the above statement is correct? (a) 1 only
(b) 2 only
(C) Both 1 and 2
(d) Neither 1 nor 2
View Answer / Hide Answer
