- a) What is active transport? (b) State the factors affecting active transport(c) Why is oxygen important in the process of active transport?(Solved)
a. What is active transport?
b. State the factors affecting active transport
c. Why is oxygen important in the process of active transport?
Date posted: September 15, 2017.
- (a) What is osmosis? (b) Explain the roles of osmosis in living organisms(Solved)
a. What is osmosis?
b. Explain the roles of osmosis in living organisms
Date posted: September 15, 2017.
- a) What is diffusion? (b) State the factors affecting diffusion (c) Explain the roles of diffusion in living organisms gaseous exchange (d) Suggest an experiment to demonstrate diffusion(Solved)
a. What is diffusion?
b. State the factors affecting diffusion
c. Explain the roles of diffusion in living organisms gaseous exchange
d. Suggest an experiment to demonstrate diffusion
Date posted: September 15, 2017.
- Explain the properties of cell membrane(Solved)
Explain the properties of cell membrane.
Date posted: September 15, 2017.
- Describe the structure of cell membrane(Solved)
Describe the structure of cell membrane
Date posted: September 15, 2017.
- a) What is magnification? (b)Give the formula used to calculate magnification in a light microscope(Solved)
a. What is magnification?
b. Give the formula used to calculate magnification in a light microscope
Date posted: September 15, 2017.
- a) What is a microscope? (b)Name the types of microscopes. (c) State the purpose of using a light microscope. (d) Explain the procedure followed when using a...(Solved)
a. What is a microscope?
b. Name the types of microscope
c. State the purpose of using a light microscope
d. Explain the procedure followed when using a microscope
e. State the precautions that are necessary when handling a microscope
Date posted: September 15, 2017.
- a) Define the term cell (b) What is cell biology?(Solved)
a. Define the term cell
b. What is cell biology?
Date posted: September 15, 2017.
- a) What is a species? (b) Name the major kingdoms used in classification(Solved)
a. What is a species?
b. Name the major kingdoms used in classification
Date posted: September 15, 2017.
- 1. (a) what is classification? (b) List the external features used to classify plants (c) List the external features used to classify animals...(Solved)
a. What is classification?
b. List the external features used to classify plants
c. List the external features used to classify animals
d. Give the reasons why classification is important
e. Name the taxonomic units of classification in descending order
Date posted: September 15, 2017.
- 1. (a) What is a hand lens? (b) How is a hand lens used? (c) When is a hand lens used? (Solved)
a. What is a hand lens?
b. How is a hand lens used?
c. When is a hand lens used?
Date posted: September 15, 2017.
- State the characteristics of living organisms.(Solved)
State the characteristics of living organisms.
Date posted: September 15, 2017.
- Explain the importance of biology.(Solved)
Explain the importance of biology.
Date posted: September 15, 2017.
- List the branches of biology.(Solved)
List the branches of biology.
Date posted: September 15, 2017.
- Define Biology.(Solved)
Define Biology.
Date posted: September 15, 2017.
- Describe how herbaceous plants obtain their support?(Solved)
Describe how herbaceous plants obtain their support?
Date posted: September 13, 2017.
- How are female parts of wind pollinated flowers adapted to perform their function?(Solved)
How are female parts of wind pollinated flowers adapted to perform their function?
Date posted: September 13, 2017.
- (a)Define nondisjunction? (b) Name two genetic disorders of the blood.(Solved)
(a) Define nondisjunction?
(b) Name two genetic disorders of the blood.
Date posted: September 13, 2017.
- Give three effects of over secretion of adrenaline?(Solved)
Give three effects of over secretion of adrenaline?
Date posted: September 13, 2017.
- What are the roles of each of the following on transmission of impulses:(i)Nodes of Ranvier (ii)Myelin Sheath (Solved)
What are the roles of each of the following on transmission of impulses:
i)Nodes of Ranvier
ii)Myelin Sheath
Date posted: September 13, 2017.
- State the three structural adaptations of the lungs in mammals(Solved)
State the three structural adaptations of the lungs in mammals
Date posted: September 13, 2017.
- (a)What is organic evolution (b)Briefly explain how the peppered moth (Biston betularia) shows natural selection (c)Distinguish between convergent and divergent evolution ...(Solved)
(a)What is organic evolution
(b)Briefly explain how the peppered moth (Biston betularia) shows natural selection
(c)Distinguish between convergent and divergent evolution
Date posted: September 13, 2017.
- Define the term: (i)Greenhouse effect (ii)Global warming(Solved)
Define the term:
i)Greenhouse effect
ii)Global warming
Date posted: September 13, 2017.
- (a) Give the importance of nitrogen cycle in the atmosphere(Solved)
(a) Give the importance of nitrogen cycle in the atmosphere
(b)What are the roles of the following organisms in an ecosystem?
i)Decomposers
ii)Detrivores
Date posted: September 13, 2017.
- What is the difference in the roots of Monocotyledonae and Dicotyledonae?(Solved)
What is the difference in the roots of Monocotyledonae and Dicotyledonae?
Date posted: September 13, 2017.
- Give three distinguishing features of class Aves(Solved)
Give three distinguishing features of class Aves
Date posted: September 13, 2017.
- State the economic importance of the following excretory products in plants (i)Nicotine (ii)Quinine(Solved)
State the economic importance of the following excretory products in plants
i)Nicotine
ii)Quinine
Date posted: September 13, 2017.
- Name the causative agent of whooping cough(Solved)
Name the causative agent of whooping cough
Date posted: September 13, 2017.
- (a) What is anaphylaxis (b)Give the difference between artificial active acquired and natural active acquired immunity (c) State how...(Solved)
(a) What is anaphylaxis
(b)Give the difference between artificial active acquired and natural active acquired immunity
(c) State how the following structural features affect transpiration
i)Leaf fall
ii)Sunken stomata
iii)Thin cuticle
Date posted: September 13, 2017.
- How is a palisade mesophyll suited to carry out photosynthesis?(Solved)
How is a palisade mesophyll suited to carry out photosynthesis?
Date posted: September 13, 2017.