Tag: component of the cell

Questions Related to component of the cell

Nucleoproteins are synthesised in?

  1. Nucleoplasm

  2. Nuclear envelope

  3. Nucleolus

  4. Cytoplasm


Correct Option: A

The semicircular channels and system of tubes found in cytoplasm are known as:

  1. Ribosomes

  2. Endoplasmic reticulum

  3. Giyoxysomes

  4. Vacuaes


Correct Option: B
Explanation:

The semicircular tube like structures present in the cytoplasm are Endoplasmic reticulum. 

So, the correct option is 'Endoplasmic reticulum'

Cytoplasm mostly consists of ________

  1. Salt and water

  2. Lipids and proteins

  3. Proteins and water

  4. Salt and sugars


Correct Option: A
Explanation:

The jelly like fluid that fills a cell is called cytoplasm. It is made up of mostly water and salt. Cytoplasm is present within the cell membrane of all cell types and contains all organelles and cell parts. It is made up of eighty percent water and is usually clear and colourless.

Which of the following statement is incorrect about cytoplasm?

  1. It is colurless

  2. Behaves like a sol-gel

  3. Very good conductor of electricity

  4. None of the above


Correct Option: D
Explanation:

Basically cytoplasm is the substance that fills the cell.It is a jelly like substance and it is made up of eighty percent water and is usually clear and colourless.It is thought that the component molecules and structures of the cytoplasm behave at times like a disordered colloidal solution(sol) and at other times like an integrated network,forming a solid mass (gel).This theory thus proposes that the cytoplasm exists in distinct fluid and solid phases depending on the level of interaction between cytoplasmic components.Cytoplasm also constitutes numerous salts and is a very good conductor of electricity.

So, the correct answer is 'None of the above'.

Which of the following cell organelle is present in cytoplasm ?

  1. Golgi apparatus

  2. Endoplasmic reticulum

  3. Chloroplasts

  4. All of the above


Correct Option: D
Explanation:

The cytoplasm comprises cytosol and the organelles. Organelles are usually membrane bound structures inside the cell that have specific functions. Some major organelles that are suspended in the cytosol are the mitochondria, the endoplasmic reticulum, golgi apparatus, vacuoles, lysosomes and in plant cells chloroplasts.

Kernplasm theory was proposed by 

  1. Hartig

  2. O. Hertwig

  3. Huxley

  4. Steward


Correct Option: B
Explanation:

Kernplasm theory was proposed by O. Hertwig. According to the theory, during the life period of a cell, a constant ratio exist between cytoplasmic and nuclear masses and this maintains equilibrium between the cytoplasm and the nucleus.

Which part of the cell contains organelles?

  1. Cytoplasm

  2. Nucleus

  3. Cell membrane

  4. Cell wall


Correct Option: A
Explanation:

Cytoplasm is a gel-like substance present in all cells. All of the cell organelles are suspended in the cytoplasm and perform life sustaining activities and thus cytoplasm is called as living fluid.

The jelly-like substance present between the cell membrane and the nucleus is called as 

  1. Cytoplasm

  2. Ribosome

  3. Golgi apparatus

  4. All of the above


Correct Option: A
Explanation:

Cytoplasm is a thick solution that fills each cell. It is enclosed by the cell membrane. It is made up of water, salts and proteins. In eukaryotic cells, the cytoplasm includes all of the material inside the cell and outside of the nucleus. Hence, the correct answer is the option A.

Which of the following is not a function of cytoplasm ?

  1. Aids in the movement of the different cellular elements

  2. Means of transport for genetic material

  3. Site of replication of DNA

  4. Transports the products of cellular respiration


Correct Option: C
Explanation:

Cytoplasm is a jelly liquid surrounded by cell membrane that consists of various cell organelles. It is the site of many biochemical reactions that are vital and crucial for maintaining life. However replication of DNA takes place in nucleus which is present in cytoplasm. Hence cytoplasm is not the site of DNA replication.

Cytosol consists of

  1. Cytoskeleton filaments

  2. Dissolved molecules

  3. Water

  4. All of the above


Correct Option: D
Explanation:

The cytosol is the portion of the cytoplasm and made up of cytoskeleton filaments, some dissolved molecules and water. The cytosol's filament is the protein filaments such as actin filaments and microtubules that make up the cytoskeleton, as well as soluble proteins and small structures such as ribosomes, proteasomes. Thus, the correct answer is option D.