What is the outermost covering of a cell that regulates the entry and exit of materials known as?
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Assertion (A): Cells were first discovered by Robert Hooke in 1665 with the help of a primitive microscope.
Reason (R): The cell theory, which states that all plants and animals are composed of cells and that the cell is the basic unit of life, was presented by biologists Schleiden and Schwann in the 19th century.
The endoplasmic reticulum (ER) membrane is similar in structure to the ______ membrane.
What is the primary function of mitochondria in a cell?
The nucleus contains __________, which are visible as rod-shaped structures only when the cell is about to divide.
What is the primary function of leucoplasts in a cell?
How is the process of meiosis different from mitosis in terms of cell division?
Cells are enclosed by a plasma membrane composed of _____ and proteins.
Which of the following statements about vacuoles is correct?
146 videos|358 docs|249 tests
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146 videos|358 docs|249 tests
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