- The term ‘Protista’ was given by:
a) Linnaeus
b) Haeckel
c) Whittaker
d) Aristotle
Answer: b) Haeckel
Explanation: Ernst Haeckel introduced the term ‘Protista’ in 1866 for the group of organisms that did not fit into the plant or animal kingdoms. These include unicellular organisms like algae, protozoa, and slime molds.
- Which of the following groups of organisms is placed under the kingdom Protista?
a) Algae, Bacteria, Fungi
b) Protozoa, Algae, Slime molds
c) Fungi, Plants, Animals
d) Algae, Bacteria, Protozoa
Answer: b) Protozoa, Algae, Slime molds
Explanation: Kingdom Protista includes unicellular eukaryotic organisms like protozoa (e.g., Amoeba), algae (e.g., Chlamydomonas), and slime molds.
- Which of the following is not an example of fungi?
a) Rhizopus
b) Penicillium
c) Nostoc
d) Aspergillus
Answer: c) Nostoc
Explanation: Nostoc is a cyanobacterium (blue-green algae), which belongs to the kingdom Monera, not Fungi. Rhizopus, Penicillium, and Aspergillus are all fungi.
- Which of the following kingdoms includes both unicellular and multicellular organisms?
a) Monera
b) Protista
c) Fungi
d) Animalia
Answer: c) Fungi
Explanation: The kingdom Fungi includes both unicellular organisms like yeast and multicellular organisms like mushrooms and molds.
- Cyanobacteria are also known as:
a) Green algae
b) Blue-green algae
c) Red algae
d) Brown algae
Answer: b) Blue-green algae
Explanation: Cyanobacteria, commonly known as blue-green algae, are photosynthetic bacteria found in the kingdom Monera. They are prokaryotic and can fix atmospheric nitrogen.
- Which of the following kingdoms lack nuclear membrane?
a) Monera
b) Protista
c) Fungi
d) Plantae
Answer: a) Monera
Explanation: Monera consists of prokaryotic organisms like bacteria and cyanobacteria that lack a nuclear membrane. Their genetic material is free within the cytoplasm.
- In five-kingdom classification, which kingdom has organisms with no cell wall?
a) Plantae
b) Fungi
c) Animalia
d) Protista
Answer: c) Animalia
Explanation: Kingdom Animalia consists of multicellular organisms that do not have a cell wall. They are heterotrophic and mostly mobile.
- Which of the following is not a characteristic feature of fungi?
a) Heterotrophic nutrition
b) Cell wall made of cellulose
c) Reproduction by spore formation
d) Saprophytic mode of life
Answer: b) Cell wall made of cellulose
Explanation: Fungi have cell walls made of chitin, not cellulose. Cellulose is found in the cell walls of plants.
- Which of the following is considered as a link between the living and the non-living?
a) Bacteria
b) Viruses
c) Fungi
d) Protozoa
Answer: b) Viruses
Explanation: Viruses are considered a link between living and non-living because they exhibit characteristics of living organisms only inside a host, but outside, they behave like non-living particles.
- Which of the following statements is correct for viruses?
a) They can be cultured on a synthetic medium
b) They have a DNA or RNA core surrounded by a protein coat
c) They are prokaryotic in nature
d) They possess their own metabolic machinery
Answer: b) They have a DNA or RNA core surrounded by a protein coat
Explanation: Viruses have either DNA or RNA as genetic material, which is enclosed in a protein coat called a capsid. They lack metabolic machinery and cannot reproduce outside a host cell.
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