Biology Past Questions and Answers

Active transport can be defined as the movement of

A Substances from a region of high concentration to a region of low concentration
B Substances from a region of low concentration to a region of high concentration across a living cell membrane
C Substances across a living cell membrane using energy from the cell
D Movement of molecules in a medium

Question 1532:

Which of the following cell inclusions can destroy other cell organelles?

A Centriole
B Ribosome
C Lysosome
D Mitochondrion

Question 1533:

In which of the following yam tissues will osmosis occur?

A Boiled and peeled
B Raw and peeled
C Boiled and unpeeled
D Roasted and peeled

Question 1534:

The following events occur during mitosis in a cell:
I. Chromatids separate;
II. Chromosomes become visible;
III. Chromosomes align at the equator
IV. Cytoplasm divides (Cytokinesis):
The correct sequence of the events is

A Lll, ll,lV,l.
B Ll, lll, l,lV
C Ll, l, lll, lV
D II, IV, I, III.

Question 1535:

Which of the following statements about asexual reproduction is correct? It

A Always involves one parent but the offspring is genetically different from the parent.
B May involve two parents but the offspring is always identical to one parent
C Always involves one parent and the offspring is genetically identical to the parent
D Involves two parents but the offspring is not genetically identical to any of the parents