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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

Taking in liquid material into the cells is known as_________?

A Phagocytosis
B Pinocytosis
C Exocytosis
D Both a and b
Correct Answer: Pinocytosis

Ribosomes and DNA are also present in_________?

A mitochondria
B golgi complex
C endoplasmic reticulum
D lysosomes
Correct Answer: mitochondria

Mitosis is divided into_____________?

A Karyokinesis
B Cytokinesis
C Interphase
D Both a & b
Correct Answer: Both a & b

Who coined the term CELL?

A Schwann
B Schleiden
C Robert Hook
D Both a and b
Correct Answer: Robert Hook

Ozone depletion occurs commonly due to_______________?

A Carbon dioxide
B Chlorofluorocarbons
C UV rays
D Deforestation
Correct Answer: Chlorofluorocarbons

Deoxygenated blood first enters in _________ part in fishes?

A Sinus venosus
B Right atrium
C Left atrium
D Conus arteriosus
Correct Answer: Sinus venosus

According to cohesion-tension theory, tension is created by__________________?

A Hydrogen bonding
B Transpiration
C Adhesion
D Root prerssure
Correct Answer: Transpiration

Cuticular transpiration is _____________ of total transpiration?

A 1-2%
B 3-4%
C 5-7%
D 90%
Correct Answer: 5-7%

An infectious disorder of respiratory system is_________________?

A Cancer
B Asthma
C Tuberculosis
D Emphysema
Correct Answer: Tuberculosis

_________________ cells of phloem are directly involved in transport of organic solutes?

A Parenchyma
B Companion cell
C Tracheid
D Sieve element
Correct Answer: Sieve element
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