OBJECTIVE LIFE SCIENCE
DIVERSITY AMONG LIFE FORMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cell Wall
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Cell membrane
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Nucleus
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Nuclear envelope
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Detailed explanation-1: -Plant cells are surrounded by a tough extracellular matrix in the form of a cell wall, which is responsible for many of the unique features of a plant’s life style.
Detailed explanation-2: -Plants cells are surrounded by the rigid cellulosic cell wall and hence are rigid. The cytoskeleton provides structural support in all cells. The cell membrane is phospholipid layer and does not impart rigidity. Centrioles are present in the animal cell only.
Detailed explanation-3: -A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.