Cell theory was proposed by

Question

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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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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According to cell theory

A. all cells have nuclei

B. all cells are living

C. cells, are fundamental units of all the living organisms

D. cells arise from pre-existing cells

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Electron microscope has revealed the presence of

A. ribosomes

B. chromosomes

C. chloroplast

D. leucoplast

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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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Extranuclear DNA is found in

A. chloroplast

B. ribosomes

C. endoplasmatic reticulum

D. golgi apparatus

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The unit of heredity is

A. gene

B. centromere

C. telomere

D. chromosome

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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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Hydroly tic enzymes are abundant in

A. peroxisomes

B. microsomes

C. lysosome

D. lomasome

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Physical basis of life is

A. nucleus

B. cell

C. protoplasm

D. nutrition

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The photosynthetic units are known as

A. dictyosomes

B. quantosomes

C. microsomes

D. ribosomes

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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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Another name for ligase is

A. joining enzyme

B. RNA polymerase

C. nuclease

D. none of these

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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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Chemical constitution of nucleus is

A. DNA and proteins

B. RNA and proteins

C. DNA, RNA and proteins

D. RNA arid DNA

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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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Function of Golgi bodies in plants is

A. transport of mutabolities

B. translocation of enzymes

C. synthesis of cell-wall

D. production of microbodies

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Janus-green-B is used for staining

A. ribosomes

B. chloroplast

C. mitochondrion

D. all of these

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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 function of cristae in a mitochondrion is

A. electron transport and ATP synthesis

B. carbon assimilation

C. intake of $o_{2}$

D. elimination of $c o_{2}$

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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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Lysosomes were discovered by

A. Porter

B. DeDuve

C. Palade

D. Golgi

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One of the following is a single-membraned structure:

A. Chloroplast

B. Nucleus

C. Mitochondria

D. Lysosome

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The organelles for fat synthesis are

A. glyoxisomes

B. lomasomes

C. spherosomes

D. lysosomes

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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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Carbohydrate is synthesized from fat within

A. lysosome

B. spherosome

C. glyoxysome

D. lomasome

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The "chromosome theory of heredity" was given by

A. Sutton and Bateson

B. Bateson and Punnett

C. Sutton and Boveri

D. Waldeyer and Hofmeister

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Granal thylakoids occur in a

A. chloroplast

B. mitochondrion

C. microtubules

D. crista

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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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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.

Discuss this answer

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

A. Purkinje

B. Lamarck

C. Dutrochet

D. Dujardin

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Accepted Answer

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

Cell theory was proposed by

Correct Answer :

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The maximum magnification possible with electron microscope is

According to cell theory

Electron microscope has revealed the presence of

Unstained living tissues of a cell can be examined by

Extranuclear DNA is found in

The unit of heredity is

The cell size is dependent upon

Hydroly tic enzymes are abundant in

Physical basis of life is

The photosynthetic units are known as

One angstrom is equal to

Another name for ligase is

The nucleus of a prokaryotic cell is represented by

Chemical constitution of nucleus is

The nucleus of a plant cell was discovered by

Function of Golgi bodies in plants is

Janus-green-B is used for staining

Intake of liquid food by formation of food vacuoles is called

The function of cristae in a mitochondrion is

Cell membranes are composed mainly of

Lysosomes were discovered by

One of the following is a single-membraned structure:

The organelles for fat synthesis are

Mitochondria were first observed in striated muscle cells by

Carbohydrate is synthesized from fat within

The "chromosome theory of heredity" was given by

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Nitrogenous bases of RNA are

Cell theory was proposed by

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

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