The process of taking in solid particles by a cell is called: MCQ with Answer and Explanation

The process of taking in solid particles by a cell is called:
A. Pinocytosis
B. Phagocytosis
C. Exocytosis
D. Osmosis
Answer: Option B
Solution (By JKSSB Mock Tests)
Phagocytosis ('cell eating') is the engulfment of large particles or microbes by the cell membrane forming a phagosome. Pinocytosis is 'cell drinking' of liquids. Exocytosis is secretion.

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Practice More Biology Questions

Question #1
Consider statements about scientists: 1. Gregor Mendel is the father of genetics. 2. Edward Jenner developed the smallpox vaccine. 3. Charles Darwin proposed the cell theory. Which are correct?
A. 1 and 3 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

Correct Answer: Option B


Explanation:
Gregor Mendel, through his pea plant experiments, established the fundamental laws of inheritance, earning him the title 'father of genetics'. Edward Jenner pioneered the concept of vaccination by developing the first successful smallpox vaccine using cowpox material. Charles Darwin proposed the theory of evolution by natural selection, not the cell theory (proposed by Schleiden and Schwann). Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology
Question #2
The number of ATP molecules produced from one glucose molecule during aerobic respiration is approximately:
A. 18
B. 2
C. 4
D. 36-38

Correct Answer: Option D


Explanation:
In eukaryotes, complete oxidation of one glucose molecule via glycolysis, Krebs cycle, and electron transport chain yields a net of about 36-38 ATP molecules (depending on shuttle systems). Glycolysis yields 2 ATP, Krebs 2 ATP, and oxidative phosphorylation 32-34 ATP. This is much higher than anaerobic respiration (2 ATP).

This question belongs to: Science Biology
Question #3
Which of the following is an example of a mutualistic symbiosis?
A. Tapeworm in human gut
B. Mosquito sucking blood
C. Barnacles on whale skin
D. Lichen (algae and fungus)

Correct Answer: Option D


Explanation:
Lichens are a mutualistic association between an alga (or cyanobacterium) and a fungus. The alga photosynthesizes, providing food; the fungus provides shelter, water, and minerals. Both benefit. Tapeworm is parasitism, barnacles on whales commensalism (or sometimes parasitism depending on effect), mosquito blood-sucking is parasitism.

This question belongs to: Science Biology