BIOLOGICAL CLASSIFICATION
KINGDOM PROTISTA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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macronucleus
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micronucleus
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Either A or B
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None of the above
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Detailed explanation-1: -There are two types of nuclei (plural of nucleus). The large nucleus is called the macronucleus which controls cell activities such as respiration, protein synthesis, and digestion.
Detailed explanation-2: -The macronucleus is the centre of all metabolic activities of the organism. The micronucleus is a storage site for the germline genetic material of the organism. It gives rise to the macronucleus and is responsible for the genetic reorganization that occurs during conjugation (cross-fertilization).
Detailed explanation-3: -The macronuclei control metabolic and developmental functions; the micronuclei are necessary for reproduction.
Detailed explanation-4: -Answer and Explanation: The micronucleus of paramecium is used for reproduction.
Detailed explanation-5: -Ciliates contain two types of nuclei: a micronucleus and a macronucleus. The micronucleus serves as the germ line nucleus but does not express its genes. The macronucleus provides the nuclear RNA for vegetative growth.