Unstained living tissues of a cell can be examined by

Question

Unstained living tissues of a cell can be examined by

A. phase contrast microscope

B. electron microscope

C. light microscope

D. autoradiography

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Cell organelle which has electron transport system is

A. nucleus

B. centriole

C. nucleolus

D. mitochondria

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Physical basis of life is

A. nucleus

B. cell

C. protoplasm

D. nutrition

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Concept of unit membrane was given by

A. Danielli and Davson

B. Singer and Davson

C. Buvat

D. Robertson

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Nobel prize for RNA synthesis was awarded to

A. A. Kornberg

B. S.Ochoa

C. H. Khorana

D. Nirenberg

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The nucleus of a plant cell was discovered by

A. Robert Brown

B. Huxley

C. Virchow

D. Hammerling

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The discoverers of electron microscope are

A. Huxley and Virchow

B. Leeuwenhok and Hooke

C. Knoll and Ruska

D. Farmer and Moore

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Nitrogenous bases of RNA are

A. uracil and adenine

B. thymine and uracil

C. uracil, adenine, guanine and cytosine

D. thymine, adenine, guanine and cytosine

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Intake of liquid food by formation of food vacuoles is called

A. pinocytocis

B. phagocytosis

C. absorption

D. imbibition

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The nucleus of a prokaryotic cell is represented by

A. a well-defined nuclear membrane

B. nucleolus only

C. double stranded circular DNA

D. single stranded DNA

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The maximum magnification possible with electron microscope is

A. 200 times

B. 2000 times

C. 20,000 times

D. 200,000 times

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One angstrom is equal to

A. $10^{- 8}$ cm

B. $10^{- 8}$ m

C. $10^{- 6}$ m

D. $10^{- 7}$ m

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Ribosomes are the centre of

A. respiration

B. photosynthesis

C. protein synthesis

D. fat synthesis

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Ribosomes of plastids and mitochondria are

A. 55S to 70S

B. 80S

C. 40S

D. 60S

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Hydroly tic enzymes are abundant in

A. peroxisomes

B. microsomes

C. lysosome

D. lomasome

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Sequence of nucleotides in a DNA strand is CAT TAG CAT CAT GAC, what will be the base sequence in complementary strand of RNA?

A. GUA AUC GUA GUA CUG

B. GTA ATC GAT GTA CTA

C. TAG ATG ATG GUA CUG

D. GTA ATG GTA GAT CTA

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In electron microscope the source of light used is

A. sunlight

B. UV-light

C. far red

D. beam of electrons

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Cell membranes are composed mainly of

A. sugar and proteins

B. lipids and proteins

C. starch and lipids

D. sugar and lipids

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Unstained living tissues of a cell can be examined by

A. phase contrast microscope

B. electron microscope

C. light microscope

D. autoradiography

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Which structure performs a similar function in both plant and animal cell

A. Ribosomes

B. Contractile vacuoles

C. Chloroplasts

D. Cell wall

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In plant cell vacuole contains

A. water

B. cytoplasm

C. air

D. water and dissolved substance

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Carbohydrate is synthesized from fat within

A. lysosome

B. spherosome

C. glyoxysome

D. lomasome

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Cellular components can be physically separated from each other by

A. centrifugation

B. radioactive tracers

C. microscopy

D. chromatography

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The cell size is dependent upon

A. oxygen supply

B. nutrition

C. regulation by nucleus

D. all of die above

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The term protoplasm was termed by

A. Dujardin

B. Purkinje

C. VonMohl

D. Malpighi

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Mitochondria were first observed in striated muscle cells by

A. Benda

B. Kolliker

C. Altmann

D. Robert Hooke

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There are 46 chromosomes in humans, of which

A. any 23 chromosomes are from father and remaining from the mother

B. the first 11 pairs and 'X' are from the father and next 11 pairs and 'Y' from the mother

C. the first 11 pairs and 'X' from mother and remaining from father

D. out of each pair one is received from the father and the other from the mother

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Another name for ligase is

A. joining enzyme

B. RNA polymerase

C. nuclease

D. none of these

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"The substance of cells is living " was firs suggested by

A. Purkinje

B. Lamarck

C. Dutrochet

D. Dujardin

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Lysosomes were discovered by

A. Porter

B. DeDuve

C. Palade

D. Golgi

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Cell theory was proposed by

A. M.J. Schleiden and Theodore Schwann in 1838 and 1839 respectively

B. M.J. Schleiden and Theodore Schwann in 1939 only

C. Theodore Schwann and M.J. Schleiden in 1938 only

D. T.J. Schleiden and M.J. Schwann in 1838 only.

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Accepted Answer

A. phase contrast microscope

Unstained living tissues of a cell can be examined by

Correct Answer :

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Cell organelle which has electron transport system is

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Concept of unit membrane was given by

Nobel prize for RNA synthesis was awarded to

The nucleus of a plant cell was discovered by

The discoverers of electron microscope are

Nitrogenous bases of RNA are

Intake of liquid food by formation of food vacuoles is called

The nucleus of a prokaryotic cell is represented by

The maximum magnification possible with electron microscope is

One angstrom is equal to

Ribosomes are the centre of

Ribosomes of plastids and mitochondria are

Hydroly tic enzymes are abundant in

Sequence of nucleotides in a DNA strand is CAT TAG CAT CAT GAC, what will be the base sequence in complementary strand of RNA?

In electron microscope the source of light used is

Cell membranes are composed mainly of

Unstained living tissues of a cell can be examined by

Which structure performs a similar function in both plant and animal cell

In plant cell vacuole contains

Carbohydrate is synthesized from fat within

Cellular components can be physically separated from each other by

The cell size is dependent upon

The term protoplasm was termed by

Mitochondria were first observed in striated muscle cells by

There are 46 chromosomes in humans, of which

Another name for ligase is

"The substance of cells is living " was firs suggested by

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