Cell 1

Which of the following statements about the cell theory is correct?

• The cell theory states that cells are composed of organic and inorganic constituents.

• The cell theory states that cells come from organisms

• The cell theory states that cells contain nuclei.

• The cell theory states that the basic unit of structure and function in organisms is the cell.

Which of the following statements about the cell theory is correct?

(1) All cells come from pre-existing cells.

(2) All living organisms are made up of one or more cells.

(3) All living organisms are made up of two or more cells.

• (1) only

• (3) only

• (1) and (2) only

• (2) and (3) only

Which of the following statements about the cell theory is correct?

(1) The cell is the basic unit of structure in organisms.

(2) The development of cell theory is the collective efforts of scientists in different fields at different time.

(3) All living organisms are made up of two or more cells.

• (1) only

• (3) only

• (1) and (2) only

• (2) and (3) only

The cell wall of plants is composed of

• protein

• cellulose

• fat

• wax

Which of the following statements about cell wall is not correct?

• Cell wall is non-living.

• Cell wall is made up of fat.

• Cell wall is fully permeable.

• All plant cells have cell wall.

Which of the following controls the movement of materials into and out of a cell?

• cell membrane

• chloroplast

• nucleus

• cell wall

Which of the following is/are the function(s) of cell membrane?

(1) Controls the movement of substances into and out of cells.

(2) Encloses the cytoplasm

(3) Supports the cell

• (1) only

• (2) only

• (1) and (2) only

• (1), (2) and (3)

Which of the following are differentially permeable?

(1) cell membrane

(2) cell wall

(3) the membrane surrounding the vacuole

• (1) and (2) only

• (1) and (3) only

• (2) and (3) only

• (1), (2) and (3)