

Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
Voice box is another name used for___________?
A: Buccal cavity
B: Pharynx
C: Larynx
D: Chest Cavity
Larynx
All of the following contain cartilage except:___________?
A: Larynx
B: Trachea
C: Bronchi
D: Bronchioles
Bronchioles
Gaseous exchange through the skin is known as ______________ respiration?
A: Cuticular
B: Cutaneous
C: Skin
D: Pulmonary
Cutaneous
Active site of Rubisco is evolved to bind?
A: CO2
B: O2
C: H2O
D: All of these
All of these
The increase in pH of blood has ________ effect on the oxygen carrying capacity of haemogolobin?
A: plus ve
B: ve
C: No
D: All of these
plus ve
Percentage of CO2 carried as carboxyhaemoglobin is_________?
A: 5%
B: 70%
C: 20%
D: 10%
20%
Arterial blood contains _________ of CO2 per 100 ml of blood
A: 54 ml
B: 60 ml
C: 64 ml
D: 50 ml
50 ml
Water is _________ times viscous than air?
A: 50
B: 1000
C: 5000
D: 8000
50
Important factors which affect the capacity of haemoglobin to combine with oxygen is
A: Temperature
B: Carbon dioxide
C: pH
D: All of these
All of these
There are _________ stomata per square cm of leaf surface in Tobacco plants?
A: 1200
B: 12000
C: 100,000
D: 1000
100,000
