INTRODUCTION
CELL ORGANELLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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organelle
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ribosome
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cell wall
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nucleus
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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 is the most conspicuous organelle found in a eukaryotic cell. It houses the cell’s chromosomes and is the place where almost all DNA replication and RNA synthesis occurs.
Detailed explanation-3: -A large oval structure called the nucleus (NOO klee us) acts as a cell’s control center, directing all of the cell’s activities. The nucleus is the largest of the cell’s organelles. Notice in Figure to the left, that the nucleus is surrounded by a membrane, called the nuclear envelope.
Detailed explanation-4: -Chloroplast and mitochondria are the only two organelles that contain their own genetic material.