11th And 12th > Biology
BIOLOGICAL CLASSIFICATION MCQs
Total Questions : 60
| Page 1 of 6 pages
Answer: Option D. ->
Both (b) and (c)
:
D
Diatomaceous earth is used in filtration and purification of liquids as well as insulation and sound proofing.
:
D
Diatomaceous earth is used in filtration and purification of liquids as well as insulation and sound proofing.
Answer: Option D. ->
DNA or RNA as genetic material, and no ribosomes
:
D
A virus differs from a bacterium as it contains either DNA or RNA as genetic material, and has no ribosomes. Since they do not possess ribosomes, they cannot independently form proteins from molecules of messenger RNA (as ribosomes are typically where protein synthesis happens in cells). Because of these limitations, viruses can replicate only within a living host cell.
:
D
A virus differs from a bacterium as it contains either DNA or RNA as genetic material, and has no ribosomes. Since they do not possess ribosomes, they cannot independently form proteins from molecules of messenger RNA (as ribosomes are typically where protein synthesis happens in cells). Because of these limitations, viruses can replicate only within a living host cell.
Answer: Option D. ->
DNA or RNA as genetic material, and no ribosomes
:
D
A virus differs from a bacterium as it contains either DNA or RNA as genetic material, and has no ribosomes. Since they do not possess ribosomes, they cannot independently form proteins from molecules of messenger RNA (as ribosomes are typically where protein synthesis happens in cells). Because of these limitations, viruses can replicate only within a living host cell.
:
D
A virus differs from a bacterium as it contains either DNA or RNA as genetic material, and has no ribosomes. Since they do not possess ribosomes, they cannot independently form proteins from molecules of messenger RNA (as ribosomes are typically where protein synthesis happens in cells). Because of these limitations, viruses can replicate only within a living host cell.
Answer: Option B. ->
Decomposers
:
B
Slime moulds are decomposers.
:
B
Slime moulds are decomposers.
Answer: Option B. ->
Heterocysts
:
B
:
B
A heterocyst is a differentiated cyanobacterial cell that carries out nitrogen fixation.
Answer: Option A. ->
These are all unicellular protists
:
A
:
A
Trypanosoma, Noctiluca, Monocystis and Giardia are all unicellular protists.
Answer: Option C. ->
Microtubular organization and type of movement
:
C
:
C
Eukaryotic flagella show 9+2 arrangement which is absent in prokaryotes.
Answer: Option A. ->
They are chemosynthetic autotrophs
:
A
:
A
They are photosynthetic autotrophs.
Answer: Option B. ->
R H whittaker
:
B
:
B
R H Whittaker proposed the five kingdom classification in 1969 and named the kingdoms as Monera, Protista, Fungi, Plantae and Animalia.
Answer: Option B. ->
Decomposers
:
B
Slime moulds are decomposers.
:
B
Slime moulds are decomposers.
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