Biology · Science General

Cell Biology and Structure

3,062 Questions

Cell biology focuses on the structure and function of cellular organelles. Key topics include cellular respiration, DNA inheritance, and energy production. These fundamental biology concepts are crucial for medical entrance and state service examinations.

Cell organelles functionsCellular respiration sitesDNA and ribosomesAnimal cell structurePlant cell components

Cell Biology and Structure Questions

Multiple choice

Which of the following is the correct sequence of organisation within a living body?

  1. Tissues - Cells - Organs - Organ system - Organism

  2. Cells - Organs - Tissues - Organ system - Organism

  3. Cells - Tissues - Organs - Organ system - Organism

  4. Cells - Tissues - Organ system - Organs - Organism

  5. Cells - Tissues - Organs - Organism - Organ system
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct sequence of organisation within a living body. 

Multiple choice

Growing point possess _____________.

  1. meristematic cells

  2. mature cells

  3. dead cells

  4. slowly enlarging cells

  5. growth inhibitors
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The undifferentiated plant tissue from which new cells are formed, as that at the tip of a stem or root.

Multiple choice

Which of the following statements is/are false? a. Cell theory states that the basic unit of structure and function of all living organisms is the cell. b. All cells arise from pre-existing cells by the process of cell multiplication. c. Cells are the building block of plants and animals.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement 'b' is a false statement. Thus, it is the correct option. All cell arise from pre-existing cells by the process of cell division.

Multiple choice

Match the following:

 
a. Cell membrane 1. It is a transparent, jelly-like material which fills the cell.
b. Cytoplasm 2. It is a large, spherical organelle present in all cells.
c. Nucleus 3. It is the thin sheet of skin by which every cell is covered.

  1. a - 2, b - 1, c - 3

  2. a - 1, b - 2, c - 3

  3. a - 1, b - 3, c - 2

  4. a - 3, b - 1, c - 2

  5. a - 3, b - 2, c - 1
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Cell membrane is the thin sheet of skin by which every cell is covered. Cytoplasm is the transparent, jelly-like material, which fills the cell. Nucleus is a large, spherical organelle present in all cells.

Multiple choice

Which of the following statements is/are false? a. All living cells only come from other living cells. b. As cells are living units, they do not require energy. c. A cell is the smallest unit of life, which has a definite structure and performs a specific function.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement 'b' is a false statement. Thus, it is the correct option. Cells are living units, they do require energy.

Multiple choice

Which of the following statements is/are false? a. In animal cells, the nucleus lies on the periphery of the cell. b. The various structures present in the cytoplasm of a cell are called 'organelles'. c. The cytoplasm of all cells contain organelles like mitochondria, golgi bodies, etc.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement 'a' is a false statement.  In animal cells, the nucleus lies in the centre of the cell.  Thus, it is the correct option.