CELL STRUCTURES AND FUNCTION
CELL STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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organelle
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nucleus
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cell envelope
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cytoplasm
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Detailed explanation-1: -Nucleus. Known as the cell’s “command center, ” the nucleus is a large organelle that stores the cell’s DNA (deoxyribonucleic acid). The nucleus controls all of the cell’s activities, such as growth and metabolism, using the DNA’s genetic information.
Detailed explanation-2: -The nucleus, formed by a nuclear membrane around a fluid nucleoplasm, is the control center of the cell. Threads of chromatin in the nucleus contain deoxyribonucleic acid (DNA), the genetic material of the cell.
Detailed explanation-3: -nucleoplasm and nucleolus. It controls all the activities of the cell by synthesizing rRNA and releasing into the cytoplasm for protein synthesis. The rRNA moves into the cytoplasm through the nuclear pore.
Detailed explanation-4: -In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.