Biology MCQs for MDCAT/ MCAT and Test Preparation

121. In which of the following types of cell does the nucleus reside?

(a) Plant cell

(b) Animal cell

(c) Both of these

(d) None of these

122. Which of the, following centrioles are, absent?

(a) Plant cell

(b) Animal cell

(c) Both of these

(d) None of these

123. What is the term for the passage of water molecules through a semipermeable barrier from a region of higher concentration to a region of lower concentration?

(a) Endosmosis

(b) Exosmosis

(c) Osmosis

(d) None of these

124. What is the process by which water molecules transition from outside to within the cell sap?

(a) Osmosis

(b) Endosmosis

(c) Exosmosis

(d) None of these

125. What is the process through which water molecules migrate from a cell to its surroundings?

(a) Osmosis

(b) Endosmosis

(c) Exosmosis

(d) None of these

126. What is the contraction of protoplasm caused by water exosmosis called?

(a) Endosmosis

(b) Osmosis

(c) Exosmosis

(d) Plasmolysis

127. A solution that contains, a low water potential than, the cell is called?

(a) Hypertonic solution

(b) Isotonic solution

(C) Both of these

(d) None of these

128. A solution, that contains an equal water, potential to that of a, cell is called?

(a) Hypetonic solution

(b) Deplasmolysis

(c) Isotonic solution

(d) None of these

129. The return, of plasmolysis cell to its, original position is called?

(a) Hypertonic solution

(b) Deplasmolysis

(c) Isotonic solution

(d) None of these

130. Scheiden and Schwann, proposed the cell theory, on the basis of?

(a) Their observation

(b) All observation on the cell

(b) Observation made on the nucleus of the wall

(c) Observations of Hooke and Brown