Q. A chromosome is composed of a DNA and

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Q. Structural and functional unit of life is called

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Q. Exchange of materials takes place between nucleus and cytoplasm with help of

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Q. There are 48 chromosomes in a cell of a

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Q. Absence of enzyme which helps in catabolism of lipids, lead towards disease called

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Q. Cellulose, pectin, and hemicelluloses together make up to form a

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Q. Arrangement of molecules of a primary wall is in sequence of

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Q. Protein structures which are long, unbranched and slender tubules are called

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Q. A group of ribosome which are attached to mRNA by small ribosome unit is known as

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Q. Storage of vital chemicals is

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Q. Smooth form of endoplasmic reticulum is without

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Q. Mitochondria extracts energy from food and convert it into energy in form of

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Q. Continuous channels that appear to lie between plasma membrane and nuclear membrane is

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Q. Cells containing single nucleus are called as

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Q. Place on chromosome where spindle fibers are attached during cell division is called

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Q. Presence of nucleus in a cell was reported by

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Q. Rough endoplasmic reticulum assists in synthesis of

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Q. Organisms which have a distinct nucleus with (chromatin material and a nucleolus) are called

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Q. Peroxisomes are usually found in protozoa and

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Q. A very important organelle which is also called power house of cell is

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