Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
Deficiency of ___________ causes yellowing in plants?
A: Magnesium
B: Iron
C: Chlorine
D: Oxygen
Magnesium
In alcoholic fermentation Pyruvic acid is broken down into?
A: Acetaldehyde
B: Methyl alcohol
C: Ethyl alcohol
D: Lactic acid
Ethyl alcohol
The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as___________?
A: Hydrophilic
B: Hydrophobic
C: Both of these
D: None of these
Hydrophobic
The most important photosynthetic pigment is ___________?
A: Chlorophyll a
B: Chlorophyll b
C: Xanthophyll
D: Carotenes
Chlorophyll a
In which of the following component of the body, lactic acid fermentation takes place?
A: Brain
B: Heart
C: Liver
D: Muscles
Muscles
Final acceptor of electrons in respiratory chain is____________?
A: NADH
B: Cytochrome a3
C: Water
D: Oxygen
Oxygen
In Anaerobic respiration only __________ % of the energy present within the chemical bond of glucose is converted into ATP?
A: 1%
B: 2%
C: 3%
D: 4%
2%
Of the following, which one light gathering?
A: Antenna complex
B: Reaction centre
C: Photosystem
D: None of these
Antenna complex
In all plants the major sites of phosynthesis are___________?
A: Leaves respire and utilize O2 and release CO2.
B: Stems
C: Roots
D: Branches
Leaves respire and utilize O2 and release CO2.