CELL STRUCTURES AND FUNCTION
CELL STRUCTURE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nucleus
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Nucleoid
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Cytoplasm
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Mitochondria
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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: -Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm. Enclosing the nucleoplasm is the nuclear envelope, which is made up of two layers of membrane: an outer membrane and an inner membrane.
Detailed explanation-3: -Nuclei contain the genetic material called DNA that is responsible for controlling and directing all cell activities.
Detailed explanation-4: -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.