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Class XI Biology
Cell Structure and Function
Biology XI-Cell Structure and Function MCQS-PDF
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Cell wall is not found in:
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Secondary wall is present on the inner side of:
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Cell wall is present on the outer side of:
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Cell membrane is found in:
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The process of taking fluid in large amount by cell membrane is called:
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The process in which cell membrane absorbs solid particles is called:
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The process of movement of molecules from lower to higher concentration is called:
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Ribosomes take part in:
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Mitochondria take part in:
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Mitochondria and ribosomes are present:
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The membrane surrounding the vacuole is known as:
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Cell membrane is composed of:
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Chromosomes are produced in the:
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Fluid mosaic bilayer model of cell membrane was proposed by:
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The instrument which is used to study the micro-organisms is called:
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The microscope in which visible light is used as source of illumination is called:
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The microscope in which short wave length X-rays are used as source of illumination is called:
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The microscope in which electron beam is used as source of illumination is called:
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The isolation of cell components is called:
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The spinning action in fractionation is called:
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In prokaryotic cells the nuclear material is located in a particular region of cell, called:
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The number of chromosomes in human being is:
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The number of chromosomes in Fruit fly Drosophila is:
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The number of chromosomes in corn is:
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The rod-shaped chromosomes, having centromere at the end are called:
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The chromosome which is rod-shaped with one arm smaller and other is long is called:
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The J-shaped chromosome with unequal arms is called:
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The V-shaped chromosome with equal arms is called:
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The chromosome consists of two thread like structures, called:
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The two chromatids are connected to each other by a small body, called:
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In eukaryotic cell the nucleolus takes part in the synthesis of RNA and:
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Smooth endoplasmic reticulum (SER) in the skin converts cholesterol into:
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The vitamin which helps to maintain strong and healthy bones is called:
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Mitochondria are passed to an animal only by:
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Lysosomes are originated by:
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When the membrane of lysosome is ruptured, the cell undergoes chemical breakdown, called:
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The absence of alpha-glucosidase enzyme may cause lysosomal storage diseases:
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The absence of alpha-glucosidase enzyme may cause:
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In lysosomal storage diseases, mental retardation, blindness, death by age 3 are symptoms of:
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In lysosomal storage diseases, liver and spleen enlargement, erosion of long bones are symptoms of:
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In lysosomal storage diseases, loss of myelin, mental retardation, death by age 2 are symptoms of:
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The chloroplasts convert the solar energy into:
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The flattened sac-like structures in chloroplasts are called:
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The groups of thylakoids in chloroplasts are called:
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The liquid outside the thylakoids of chloroplasts is called:
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The enzyme forming hydrogen peroxide is released by:
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The organelles which take part in alcohol metabolism are called:
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The micro-organelles which help in fatty-acid oxidation are called:
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The three dimensional network of fibrous proteins in the cell is called:
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Microtubules and microfilaments are the types of:
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The hollow cylinder like structures of cytoskeleton are called:
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The solid filamentous structures of cytoskeleton are called:
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Microtubules are made up of protein:
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Microfilaments are composed of protein:
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In animal cells the centriole, cilia and flagella are formed by:
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In skin, hairs and nails protein is present:
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The structural and functional unit of life is called:
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Cell was studied under microscope for the first time by:
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Nucleus was studied in the cell by:
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The word cell was first used by:
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In Greek language the meaning of cell is:
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Cell membrane is composed of:
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Plasma membrane is a bilayer of __________ interspersed with proteins:
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In plants and lower invertebrate cells the Golgi complex are called:
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Mitochondria is a site of:
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The type of light microscope is:
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The types of Passive Transport are:
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The movement of molecules from lower concentration to higher concentration by the use of energy is called:
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The movement of solid molecules from lower concentration to the higher concentration is called:
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The movement of fluid molecules from lower concentration to higher concentration in a cell is called:
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The movement of molecules from outside to inside the cell in active transport is called:
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The movement of molecules from inside to outside the cell in active transport is called:
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The organelles, attached with endoplasmic reticulum are called:
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The elongated tube like structures present between nuclear membrane and cell membrane are called:
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Endoplasmic reticulum which has ribosomes is called:
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Endoplasmic reticulum which is without ribosomes is called:
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Cholesterol is converted into Vitamin D during sunlight by:
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The projections of inner membrane of mitochondria are called:
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The cristae of mitochondria contain:
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Respiratory enzymes are present on:
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Power house are called:
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The inner most part of mitochondria is called:
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Golgi apparatus was discovered by:
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Golgi apparatus consists of flattened sac like structures, called:
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In animal cells the Golgi bodies secrete:
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In plant cells the Golgi bodies take part in:
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Hydrolytic enzymes are secreted by:
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Hydrolytic enzymes are present in:
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Protein factories are called:
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Ribosomes are rich with:
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The organelles which take part in the formation of nuclear spindle and astral fibres are called:
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The outer layer of cytoplasm around vacuole is called:
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The inner fluid of vacuole is called:
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The cell sap of vacuole contains:
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Lysosomes are also called:
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Coloured bodies in plant cells are called: