- Below is a three-dimensional diagram of the cell. Provide the name and function of
the following numbered structures:
The following difficult to distinguish structures have been done for you:- 4-vesicle: spherical sacs that facilitate storage, metabolism and transport of
molecules. - 7-cell membrane:selectively permeable to control the passage of substances into
and out of the cell. - 10-vacuole:storage of sugars, minerals and pigments and help maintain water
balance in the cell. - 12-lysosome:contain powerful digestive enzymes that digest damaged cell struc-
tures and food molecules.
a)
- Multiple answers are provided for each question. Writeonly the letterof the correct
answer next to the corresponding number.
a) Active transport is the movement of a substance from a:
i. high concentration to a low concentration.
ii. high water potential to a low water potential.
iii. isotonic solution.
iv. low concentration to a high concentration.
b) Protoplasm consists of:
i. nucleoplasm and nucleolus.
ii. cytoplasm and nucleoplasm.
iii. cytoplasm and organelles.
Chapter 3. The basic units of life 93