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Give reasons for carrying out the following procedures when preparing temporary wet mounts of plant tissues
a) Making thin plant sections.
b) Adding water on the plant section.
c) Placing a cover slip over the plant section.
Date posted:
April 28, 2017
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State the functions of the following parts of a light microscope.
Fine adjustment knob
Stage
Date posted:
April 27, 2017
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The diagram below shows a specified plant cell
a) i) Name the cell.
ii) Name the parts labeled D and E
b) State the function
Date posted:
April 27, 2017
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State two functions of the endoplasmic reticulum
Date posted:
April 27, 2017
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State three functions of Golgi apparatus.
Date posted:
April 27, 2017
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Plant cells do not burst when immersed in distilled water. Explain
Date posted:
April 27, 2017
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a) What is the formula for calculating linear magnification of a specimen when using a hand lens
b) Give a reason why staining is necessary when preparing specimens for observation under the microscope.
Date posted:
April 27, 2017
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State the function of the organelles
a) lysosomes
b) Golgi apparatus
Date posted:
April 27, 2017
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Name the organelle in which protein synthesis takes place.
Date posted:
April 27, 2017
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Which organelle would be abundant in:
Skeletal muscle cell
Palisade cell
Date posted:
April 27, 2017
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State the functions of cell sap.
Date posted:
April 27, 2017
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How does nutrition as a characteristic of living organisms differ in plants and animals?
Date posted:
April 27, 2017
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State the importance of each of the following in living organisms:
a) Nutrition
b) Excretion.
Date posted:
April 27, 2017
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How does nutrition as a characteristics of living organisms differ in plants and animals?
Date posted:
April 27, 2017
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State one use for each of the following apparatus in the study of living organisms.
a) Pooter
b) Pitfall trap.
Date posted:
April 27, 2017
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State the name given to study of:
a) The cell;
b) Micro-organisms
Date posted:
April 27, 2017
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Motor vehicles move, use energy and produce carbon dioxide and water. Similar characteristics occurs in living organisms yet motor vehicles are not classified as living Explain.
Date posted:
April 27, 2017
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Explain the importance of the following in fish;
a)Myotomes on either side of the body
b) Scales overlapping backwards
c) Paired fins
Date posted:
January 21, 2017
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Name the type of muscle in human being found in the;
a) Artrium
b) Oviduct
Date posted:
January 21, 2017
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Name the hormone responsible for apical Dominance.
Date posted:
January 21, 2017
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Explain why Lamarck's theory of evolution is not accepted by Biologists today.
Date posted:
January 21, 2017
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Name the causative organism of the following diseases
i) Malaria
ii) Bilharzia
Date posted:
January 21, 2017
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Name the excretory products eliminated by the following animals,
i) Tilapia
ii) Chicken
Date posted:
January 21, 2017
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A small boy remarked that his dog looks larger on cold days than on hot days. Give biological explanation for this.
Date posted:
January 21, 2017
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Give two destinations of food translocated from the leaves of plants.
Date posted:
January 21, 2017
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Insects’ blood is said to lack a respiratory pigment. Explain
Date posted:
January 21, 2017
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Write down two functions of exoskeleton in the phylum Arthropoda.
Date posted:
January 21, 2017
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State two characteristics of a meristematic cell.
Date posted:
January 21, 2017
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Name a growth hormone that has inhibitory effect in plants growth.
Date posted:
January 21, 2017
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Explain why menstruation does not take place after fertilization in human beings.
Date posted:
January 21, 2017