Question 1
a) Define the term ‘parthenocarpy’
b) Name two plant growth hormones that promote parthenocarpy
Answer
(a) Development of ovary to a fruit without fertilization;
(b) - Auxins/IAA
- Giberellins/Giberellic acid;
(b) - Auxins/IAA
- Giberellins/Giberellic acid;
Question 2.
Name the organelle that performs each of the following functions in a cell
(i) Protein synthesis.
(ii) Transport of cell secretions
Answer
(i) Ribosomes;
(ii) Endoplamic reticulum;
(ii) Endoplamic reticulum;
Question 3
The diagram below represents a certain organism
(a) Identify the kingdom to which the organism belongs.
(b) Identify the part labeled P
(c) What is the function of contractile vacuole?
Answer
(a) Protoctista;
(b) Pseudopodia
(c) Osmoregulation/get rid of excess water/Remove excess water.
(b) Pseudopodia
(c) Osmoregulation/get rid of excess water/Remove excess water.
Question 4
Other than carbon (IV) oxide, name other products of anaerobic respiration.
Answer
- Ethanol/Alcohol
- Energy/ATP/heat
- Energy/ATP/heat
Question 5
(a) Name the fluid that is produced by sebaceous glands
(b) State two functions of sweat on the human body.
Answer
(a) Sebum
(b) - Kills micro-organisms
- Cools the body.
(b) - Kills micro-organisms
- Cools the body.