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1.   Explain different functions of mammalian blood and for each mention the component involved. (Answered)
Explain different functions of mammalian blood and for each mention the component involved. .
Posted On:Sat 12, March 2022 16:07:05 pm
2.   Describe how the cellular components of mammalian blood are adapted to their functions/ Describe how human blood is adapted to its function. (Answered)
Describe how the cellular components of mammalian blood are adapted to their functions/ Describe how human blood is adapted to its function. .
Posted On:Sat 12, March 2022 16:04:36 pm
3.   Describe how carbon (IV) oxide produced by the liver cell reaches alveoli cavities in the mammalian lungs. (Answered)
Describe how carbon (IV) oxide produced by the liver cell reaches alveoli cavities in the mammalian lungs. .
Posted On:Sat 12, March 2022 16:02:44 pm
4.   Explain the mechanism involved and the pathway taken by oxygen in human beings from the atmosphere to the liver cells. (Answered)
Explain the mechanism involved and the pathway taken by oxygen in human beings from the atmosphere to the liver cells. .
Posted On:Sat 12, March 2022 16:01:25 pm
5.   Describe/ explain the transport of the following gases in blood. (Answered)
Describe/ explain the transport of the following gases in blood. .
Posted On:Sat 12, March 2022 15:59:52 pm
6.   How is the mammalian heart structurally adapted to its function. (Answered)
How is the mammalian heart structurally adapted to its function. .
Posted On:Sat 12, March 2022 15:57:54 pm
7.   Explain/ describe the pumping mechanism of the mammalian heart. (Answered)
Explain/ describe the pumping mechanism of the mammalian heart. .
Posted On:Sat 12, March 2022 15:54:52 pm
8.   Describe/ explain how blood circulation in mammals take place. (Answered)
Describe/ explain how blood circulation in mammals take place. .
Posted On:Sat 12, March 2022 15:53:24 pm
9.   Describe/ explain how environmental factors affect the rate of transpiration. (Answered)
Describe/ explain how environmental factors affect the rate of transpiration. .
Posted On:Sat 12, March 2022 15:52:15 pm
10.   Describe how the structural factors which affect the rate of transpiration. (Answered)
Describe how the structural factors which affect the rate of transpiration. .
Posted On:Sat 12, March 2022 15:49:42 pm
11.   Describe the movement of water from the soil to the atmosphere through the leaves. (Answered)
Describe the movement of water from the soil to the atmosphere through the leaves. .
Posted On:Sat 12, March 2022 12:50:36 pm
12.   How are villi suited/ adapted to their function? (Answered)
How are villi suited/ adapted to their function? .
Posted On:Sat 12, March 2022 12:47:19 pm
13.   How are small intestines / ileum adapted/ suited to its function? (Answered)
How are small intestines / ileum adapted/ suited to its function? .
Posted On:Sat 12, March 2022 12:44:01 pm
14.   Describe what happens to a meal rich in carbohydrates, proteins and lipids (fatty meal of ugali, and eggs) along the alimentary canal from ingestion to egestion. (Answered)
Describe what happens to a meal rich in carbohydrates, proteins and lipids (fatty meal of ugali, and eggs) along the alimentary canal from ingestion to egestion. .
Posted On:Sat 12, March 2022 12:41:44 pm
15.   Describe how various parts of the alimentary canal/ digestive system are adapted/ suited to their functions. (Answered)
Describe how various parts of the alimentary canal/ digestive system are adapted/ suited to their functions. .
Posted On:Sat 12, March 2022 12:38:43 pm
16.   Describe the role played by each of the following in human beings (Answered)
Describe the role played by each of the following in human beings .
Posted On:Sat 12, March 2022 12:29:30 pm
17.   Describe how various factors affect the rate of photosynthesis. (Answered)
Describe how various factors affect the rate of photosynthesis. .
Posted On:Sat 12, March 2022 12:20:15 pm
18.   Explain the formation of starch in green plants. (Answered)
Explain the formation of starch in green plants. .
Posted On:Sat 12, March 2022 12:16:24 pm
19.   Describe how the leaf is adapted/ suited to photosynthesis. (Answered)
Describe how the leaf is adapted/ suited to photosynthesis. .
Posted On:Sat 12, March 2022 12:14:20 pm
20.   An experiment was carried out to determine the rate of transpiration in three plants A, B and C. Plants A and B belonged to different species while plants B and C belonged to the same species. Plant C had all its leaves removed. The three plants were of similar size and were exposed to the same environmental conditions. The results are as shown below in the graphs below: Suggest the habitat for (Answered)
An experiment was carried out to determine the rate of transpiration in three plants A, B and C. Plants A and B belonged to different species while plants B and C belonged to the same species. Plant C had all its leaves removed. The three plants were of similar size and were exposed to the same environmental conditions. The results are as shown below in the graphs below: Suggest the habitat for .
Posted On:Fri 11, March 2022 19:58:30 pm
21.   Explain how water from the soil reaches the structure labeled L. (Answered)
Explain how water from the soil reaches the structure labeled L. .
Posted On:Fri 11, March 2022 19:48:50 pm
22.   The diagram below represents a transverse section of a young stem. (a)State the functions of the parts labeled C, D and E. (b)List three differences between the section shown above and one that would be obtained from the root of the same plant. (Answered)
The diagram below represents a transverse section of a young stem. (a)State the functions of the parts labeled C, D and E. (b)List three differences between the section shown above and one that would be obtained from the root of the same plant. .
Posted On:Fri 11, March 2022 19:43:42 pm
23.   Describe the mode of reproduction in a named fungus. (Answered)
Describe the mode of reproduction in a named fungus. .
Posted On:Fri 11, March 2022 14:28:27 pm
24.   The photographs below show the various stages of cell division in a certain plant. (a)(i)Name the type of cell division illustrated. (ii)Give a reason for your answer in (a)(i) above (b)(i) Name the stage of cell division labeled K. (ii) Give a reason for your answer in (b) (i) above. (Answered)
The photographs below show the various stages of cell division in a certain plant. (a)(i)Name the type of cell division illustrated. (ii)Give a reason for your answer in (a)(i) above (b)(i) Name the stage of cell division labeled K. (ii) Give a reason for your answer in (b) (i) above. .
Posted On:Fri 11, March 2022 14:26:00 pm
25.   State four characteristics of fruits dispersed by animals. (Answered)
State four characteristics of fruits dispersed by animals. .
Posted On:Fri 11, March 2022 14:19:45 pm
26.   The diagram below illustrates a growing pollen tube. (a) Name the part labeled B (b) Explain the role of the parts A. (Answered)
The diagram below illustrates a growing pollen tube. (a) Name the part labeled B (b) Explain the role of the parts A. .
Posted On:Fri 11, March 2022 14:17:52 pm
27.   Name the flower part that produces gametes. (Answered)
Name the flower part that produces gametes. .
Posted On:Fri 11, March 2022 14:14:31 pm
28.   Name three mechanisms that ensure cross pollination takes place in flowering plants. (Answered)
Name three mechanisms that ensure cross pollination takes place in flowering plants. .
Posted On:Fri 11, March 2022 14:13:37 pm
29.   The diagram below represents an experimental set-up used by students to investigate a certain process. Flower Q produced seeds while P did not. Account for the results. (Answered)
The diagram below represents an experimental set-up used by students to investigate a certain process. Flower Q produced seeds while P did not. Account for the results. .
Posted On:Fri 11, March 2022 14:12:35 pm
30.   The diagram below represents a transverse section of an ovary from a certain flower. (i) Name the structure labeled W (ii)Name the type of placentation illustrated in this diagram. (Answered)
The diagram below represents a transverse section of an ovary from a certain flower. (i) Name the structure labeled W (ii)Name the type of placentation illustrated in this diagram. .
Posted On:Fri 11, March 2022 14:08:19 pm
31.   Describe the process of fertilization in flowering plants. (Answered)
Describe the process of fertilization in flowering plants. .
Posted On:Fri 11, March 2022 14:04:28 pm
32.   How are flowers adapted to wind and insect pollination? Insect pollinated flowers (entomophilus) (Answered)
How are flowers adapted to wind and insect pollination? Insect pollinated flowers (entomophilus) .
Posted On:Fri 11, March 2022 14:01:37 pm
33.   Distinguish between protandary and protogyny. (Answered)
Distinguish between protandary and protogyny. .
Posted On:Fri 11, March 2022 13:58:10 pm
34.   The diagram below shows a stage in mitosis in a plant cell. (a) Name the stage of mitosis (b) Give two reasons for your answer in (a) above. (c)Name the part of the plant from which the cell used in preparation was obtained. (Answered)
The diagram below shows a stage in mitosis in a plant cell. (a) Name the stage of mitosis (b) Give two reasons for your answer in (a) above. (c)Name the part of the plant from which the cell used in preparation was obtained. .
Posted On:Fri 11, March 2022 13:56:34 pm
35.   The diagram below shows a stage during fertilization in a plant. (i) Name the parts labeled Q, R and S. (ii) State two functions of the pollen tube. (Answered)
The diagram below shows a stage during fertilization in a plant. (i) Name the parts labeled Q, R and S. (ii) State two functions of the pollen tube. .
Posted On:Fri 11, March 2022 13:51:46 pm
36.   Explain how the following prevent selfpollination (i) Protandry (ii)Self-sterility (Answered)
Explain how the following prevent selfpollination (i) Protandry (ii)Self-sterility .
Posted On:Fri 11, March 2022 13:45:52 pm
37.   Give three advantages of cross pollination (Answered)
Give three advantages of cross pollination .
Posted On:Fri 11, March 2022 13:43:59 pm
38.   Name the part of the flower that develops into (a)Seed (b)Fruit (Answered)
Name the part of the flower that develops into (a)Seed (b)Fruit .
Posted On:Fri 11, March 2022 13:42:14 pm
39.   What is meant by the terms (i) Epigynous flower (ii)Staminate flower (Answered)
What is meant by the terms (i) Epigynous flower (ii)Staminate flower .
Posted On:Fri 11, March 2022 13:40:56 pm
40.   How are the male parts of wind pollinated adapted to their function? (Answered)
How are the male parts of wind pollinated adapted to their function? .
Posted On:Fri 11, March 2022 13:39:09 pm
41.   Explain how a seed is formed after an ovule is fertilized. (Answered)
Explain how a seed is formed after an ovule is fertilized. .
Posted On:Fri 11, March 2022 13:37:24 pm
42.   What is the importance of cross pollination? (Answered)
What is the importance of cross pollination? .
Posted On:Fri 11, March 2022 13:35:50 pm
43.   Fruits formation without fertilization is called? (Answered)
Fruits formation without fertilization is called? .
Posted On:Fri 11, March 2022 13:33:57 pm
44.   Describe how fruits and seeds are suited to their modes of dispersal. (Answered)
Describe how fruits and seeds are suited to their modes of dispersal. .
Posted On:Fri 11, March 2022 13:32:56 pm
45.   How do the male gamete nuclei reach the ovule after pollen grains land on the stigma? (Answered)
How do the male gamete nuclei reach the ovule after pollen grains land on the stigma? .
Posted On:Fri 11, March 2022 13:27:10 pm
46.   State the change that takes in a flower after fertilization. (Answered)
State the change that takes in a flower after fertilization. .
Posted On:Fri 11, March 2022 13:26:11 pm
47.   Describe the process of fertilization in a flowering plant (Answered)
Describe the process of fertilization in a flowering plant .
Posted On:Fri 11, March 2022 13:24:25 pm
48.   Name the parts of the flower that are responsible the production of gametes. (Answered)
Name the parts of the flower that are responsible the production of gametes. .
Posted On:Fri 11, March 2022 13:21:31 pm
49.   State two disadvantages of self-pollination. (Answered)
State two disadvantages of self-pollination. .
Posted On:Fri 11, March 2022 13:20:35 pm
50.   A flower was found to have the following characteristics: Inconspicuous petal Long feathery stigma Small, light pollen grains. (a) What is the likely agent of pollination of the flower? (b) What is the significance of the long feathery stigma in the flower? (Answered)
A flower was found to have the following characteristics: Inconspicuous petal Long feathery stigma Small, light pollen grains. (a) What is the likely agent of pollination of the flower? (b) What is the significance of the long feathery stigma in the flower? .
Posted On:Fri 11, March 2022 13:19:35 pm
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