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Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

In animals coordination is achieved by means of?
A Nervous system
B Endocrine system
C Respiratory system
D Both A and B
Correct Answer: Both A and B
Haemodialysis means cleaning of____________?
A Urine
B Blood
C Glomerular filterate
D Coelomic fluid
Correct Answer: Blood
A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as:
A An organ
B An organism
C A Tissue
D A Cell
Correct Answer: A Tissue
Which one of them is a micro-molecule?
A Polysaccharide
B Protein
C Hemoglobin
D ATP
Correct Answer: ATP
The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:
A An organ
B A molecule
C Tissue
D Both a and c
Correct Answer: A molecule
Oxygen accounts for ____ % of totals human body mass?
A 65%
B 18%
C 10%
D 3%
Correct Answer: 65%
___________ are needed as a source of energy for the vital activities of the body?
A Calcium
B Iron
C Water
D Carbohydrates
Correct Answer: Carbohydrates
Out of 92 naturally occurring chemical elements how many are considered as bio-elements?
A 6
B 16
C 26
D 15
Correct Answer: 6
__________ is essential for the formation of hemoglobin.
A Calcium
B Iron
C Water
D Carbohydrates
Correct Answer: Iron
The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called ?
A Environmental biology
B Social biology
C Human biology
D Both b and c
Correct Answer: Social biology

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