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Fundamental Units of Life

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The ATP is formed in

  1. plastids

  2. ribosomes

  3. golgibodies

  4. mitochondria


Correct Option: D

Which of the following has a prokaryotic cell?

  1. E.coli

  2. Rhizopus

  3. Amoeba

  4. Spirogyra


Correct Option: A

The term protoplasm was coined by _______.

  1. R.Brown

  2. Virchow

  3. Schwan

  4. Purkinje


Correct Option: D

The common immediate source of energy in cellular activity is

  1. TNP

  2. ATP

  3. ADP

  4. TPN


Correct Option: B

The physical basis of life is

  1. cytoplasm

  2. protoplasm

  3. nucleoplasm

  4. endoplasm


Correct Option: B

The organelle without a membrane is

  1. nucleous

  2. mitchondria

  3. centriole

  4. chloroplast


Correct Option: C

The essential gene material is/are

  1. fats & proteins

  2. ribonucleic acid

  3. deoxyribonucleic acid

  4. proteins


Correct Option: D

The largest cell in the human body is the

  1. nerve cell

  2. muscle cell

  3. liver

  4. kidney cell


Correct Option: A

Bacterial cell membrane is made up of

  1. proteins & phospholipids

  2. cellulose

  3. chitin

  4. all of the above


Correct Option: A

Mitrochondria are found everywhere except in human

  1. adipose cells

  2. erythrocytes

  3. hepatocytes

  4. leucocytes


Correct Option: B

A prokaryotic cell lacks

  1. nuclear membrane

  2. nucleolus

  3. membrane bound cell organelle

  4. all of the above


Correct Option: D

Schleiden & Schwan proposed that

  1. all cells are alike

  2. all cells die

  3. the bodies of plants & animals are made up of units called cells

  4. new cells arise from pre-existing cells


Correct Option: C

Physical basis of heridity is

  1. nucleus

  2. nucleolus

  3. nucleosome

  4. chromosomes


Correct Option: D

The biggest cell is

  1. ostrich cell

  2. mycoplasma

  3. hen egg

  4. plant cell


Correct Option: A

Plant cell differs from the animal cell by the

  1. cell wall present in the animal cell

  2. vacuoles small & large in number in the plant cell

  3. cell wall & chloroplast present in the plant cell

  4. presence of chloroplast in the animal cell but the absence of cell wall.


Correct Option: C

The main controlling cell organelle is

  1. nucleous

  2. mitochrondria

  3. nucleolous

  4. ribosomes


Correct Option: A

A plant cell becomes turgid due to

  1. plasmolysis

  2. exosmosis

  3. endosmosis

  4. electrolysis


Correct Option: C

The folds of the inner membrane of mitochondria are called

  1. cristae

  2. grana

  3. cisterns

  4. sacs


Correct Option: A
Explanation:

Mitochondrial cristae are folds of the mitochondrial inner membrane that provide an increase in the surface area. This allows a greater space for processes that happen across this membrane.

A cell organelle which helps in phosphorylation is

  1. centrioles

  2. nucleous

  3. chromosomes

  4. mitochondria


Correct Option: D

The scientist who discovered cell in the cork of a plant is

  1. Schieiden

  2. Leeuwenhoek

  3. Hooke

  4. Jansson


Correct Option: C
Explanation:

Robert Hooke was the first scientist to discover cell in the cork of a plant.

Solute concentration is higher in the external solution in

  1. hypotonic solution

  2. isotonic solution

  3. hypertonic solution

  4. concentrated solution


Correct Option: C

The waste disposal system of the cell is called

  1. lysosomes

  2. golgibodies

  3. vacuoles

  4. endoplasmic reticulum


Correct Option: A

The plasma membrane is

  1. selectively permeable

  2. impermeable to ions

  3. sometimes totally impermeable

  4. incapable of regulating the movement of glucose


Correct Option: A
Explanation:

The plasma membrane is the outermost covering of the cell that separates the contents of the cell from its external environment. The plasma membrane allows or permits the entry and exit of some materials in and out of the cell. It also prevents movement of some other materials. The cell membrane, therefore, is called a selectively permeable membrane.

Exchange of gases in the cell body occurs through

  1. osmosis

  2. diffusion

  3. semi permeable membrane

  4. plasmolysis


Correct Option: B

The membrane surrounding the vacuole of a plant cell is called

  1. tonoplast

  2. plasma membrane

  3. nuclear membrane

  4. cell wall


Correct Option: A
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