Tag: component of the cell

Questions Related to component of the cell

Cytoplasm constitutes of about .......... percentage of water.

  1. 70

  2. 80

  3. 20

  4. 40


Correct Option: B
Explanation:

Cytoplasm is the jelly-like fluid surrounded by the cell membrane and holds all the organelles. It is made up of eighty percent water and is usually clear and colourless. It helps in intracellular exchange of materials.

So, the correct answer is option B.

Animal cytoplasm is composed of 

  1. Proteins

  2. Salt

  3. Nucleotides

  4. All of the above


Correct Option: D
Explanation:

Cytoplasm is the jelly-like fluid present in cells that hold organelles and surrounded by the cell membrane. In eukaryotes, the nucleus of a cell is separated from the cytoplasm by a double membrane, known as a nuclear membrane. The cytoplasm of the animal cell is made of proteins, carbohydrates, salts, sugars, amino acids and nucleotides. 

Which one is an extracytoplasmic cell organelle?

  1. Vacuole

  2. E.R.

  3. Nucleus

  4. Golgi apparatus


Correct Option: C
Explanation:
  • Cytoplasm refers to the living the material or the protoplast within a cell excluding the nucleus.
  • Therefore, extracytoplasmic cell organelle refers to those organelles outside to the cell cytoplasm.
  • A nucleus is the only cell organelle excluded from the cytoplasm.
  • So, the correct answer is 'Nucleus'.

Cytosol plays an important role in

  1. Digestion

  2. Reproduction

  3. Breakdown of large molecules

  4. None of the above


Correct Option: C
Explanation:

The cytosol is also called as cytoplasm in a cell which holds the organelles. It consists several enzymes for different activities such as glycolysis. Glycolysis is the breakdown of large molecule glucose to simple molecule pyruvate. uses its dissolved enzymes to break down all of those larger molecules. The products can then be used by the mitochondria for the formation of energy.

Protoplast excluding nucleus is called 

  1. Cytoplasm

  2. Endoplasm

  3. Ectoplasm

  4. Protoplasm


Correct Option: A
Explanation:
  • Protoplast refers to an entire cell including the cell membrane, cell organelles and the nucleus, excluding the cell wall (in plants and few algae).
  • Cytoplasm refers to the living the material or the protoplast within a cell excluding the nucleus.
  • So the correct answer is 'Cytoplasm'.