Solved MCQs of Biology Class 9
Diffusion is a _______________ process.
Slow
Fast
Both
None
The example of long cells are:
Bird eggs
Muscle cells
Nerves cells
Muscle cells & Nerves cells
Each centriole contains ……………… triplets of microtubules.
Five
Seven
Nine
Eleven
Ribisomes are constructed in the ___________
Endoplasmic reticulum
Bucleoid
Nucleolus
Nuclear pore
Phloem tissues are made up of:
Tracheids & Vessel cells
Tracheid & companion cells
Sieve tube cells & companion cells
Sieve tube cells & trancheids
…………….. are involved i protein synthesis.
SER
RER
Both
None
There are _______________ chromosomes in radish.
46
18
16
23
Rough endoplasmic reticulum is the area in a cell where _________ are synthesized.
Polysacchrides
Proteins
Lipids
DNA
The most abundant and important organelle belongingto plastids are:
Chloroplast
Chronoplast
Leucoplast
None
The thin extensions of the inner mitochondrial membrane are known as ______.
Cristae
Matrix
Thylakoids
Stroma
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