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1.   With the aid of a well labelled diagram, describe the process through which a stack is formed. (Answered)
With the aid of a well labelled diagram, describe the process through which a stack is formed. .
Posted On:Sat 28, May 2022 12:57:20 pm
2.   Explain how the following factors determine the effectiveness of wave erosion along the coast. i) Nature of the material transported by waves. ii) Nature of the coastal rocks. (Answered)
Explain how the following factors determine the effectiveness of wave erosion along the coast. i) Nature of the material transported by waves. ii) Nature of the coastal rocks. .
Posted On:Sat 28, May 2022 12:51:37 pm
3.   Name two types of submerged coasts. (Answered)
Name two types of submerged coasts. .
Posted On:Sat 28, May 2022 12:50:08 pm
4.   State two features that form as a result of submergence of coasts. (Answered)
State two features that form as a result of submergence of coasts. .
Posted On:Sat 28, May 2022 12:49:16 pm
5.   State two causes of submergence of coasts. (Answered)
State two causes of submergence of coasts. .
Posted On:Sat 28, May 2022 12:47:42 pm
6.   While investigating a certain metabolic process in plants, students set up the apparatus as shown below in a classroom and monitored it for 48 hours. (a) Identify the metabolic process under investigation. b) Account for the observations made in the test tube at the end of the investigation. (Answered)
While investigating a certain metabolic process in plants, students set up the apparatus as shown below in a classroom and monitored it for 48 hours. (a) Identify the metabolic process under investigation. b) Account for the observations made in the test tube at the end of the investigation. .
Posted On:Thu 19, May 2022 05:31:59 am
7.   The amount of blood flowing through a certain parts in the mammalian body at different activity levels was measured and results tabulated as shown in the table below. (a) Account for: (i) The high blood flow through cardiac and skeletal muscles during strenuous exercises. (ii) The results obtained for the alimentary canal at rest. (Answered)
The amount of blood flowing through a certain parts in the mammalian body at different activity levels was measured and results tabulated as shown in the table below. (a) Account for: (i) The high blood flow through cardiac and skeletal muscles during strenuous exercises. (ii) The results obtained for the alimentary canal at rest. .
Posted On:Thu 19, May 2022 05:28:08 am
8.   Name two wastes materials excreted by both the skin and the kidney. (Answered)
Name two wastes materials excreted by both the skin and the kidney. .
Posted On:Thu 19, May 2022 05:24:04 am
9.   Name two products of respiration in plants. (Answered)
Name two products of respiration in plants. .
Posted On:Thu 19, May 2022 05:23:17 am
10.   State three activities in human digestive system that depend on respiration. (Answered)
State three activities in human digestive system that depend on respiration. .
Posted On:Thu 19, May 2022 05:22:41 am
11.   Define respiration (Answered)
Define respiration .
Posted On:Thu 19, May 2022 05:21:54 am
12.   Explain why short distance runners breathe quickly and deeply at the end of the race. (Answered)
Explain why short distance runners breathe quickly and deeply at the end of the race. .
Posted On:Thu 19, May 2022 05:21:18 am
13.   In an experiment on respiration, a mouse was observed to have inhaled #200cm^3# of oxygen and exhaled #199.75cm^3# of carbon (IV) oxide in ten minutes. a)Identify the possible food substance consumed by the mouse. b)State the fate of the excess food name in (a) above in the human body. (Answered)
In an experiment on respiration, a mouse was observed to have inhaled #200cm^3# of oxygen and exhaled #199.75cm^3# of carbon (IV) oxide in ten minutes. a)Identify the possible food substance consumed by the mouse. b)State the fate of the excess food name in (a) above in the human body. .
Posted On:Thu 19, May 2022 05:20:43 am
14.   The diagram below show an experimental set up to investigate a certain physiological process in plants. (a) State the aim of the experiment. b) State the role of the following in the experiment. (i) Potassium hydroxide ii) Aluminium foil. (c) Account for the expected colour change in the tube F. (Answered)
The diagram below show an experimental set up to investigate a certain physiological process in plants. (a) State the aim of the experiment. b) State the role of the following in the experiment. (i) Potassium hydroxide ii) Aluminium foil. (c) Account for the expected colour change in the tube F. .
Posted On:Thu 19, May 2022 05:16:34 am
15.   Name the three end products of anaerobic respiration in plants. (Answered)
Name the three end products of anaerobic respiration in plants. .
Posted On:Thu 19, May 2022 05:12:29 am
16.   The diagram below represents a set up that students used in an investigation. (a) Name the physiological process that was being investigated. b) State the role of potassium hydroxide in flask K c) Account for the observation in boiling tube L and flask N. (Answered)
The diagram below represents a set up that students used in an investigation. (a) Name the physiological process that was being investigated. b) State the role of potassium hydroxide in flask K c) Account for the observation in boiling tube L and flask N. .
Posted On:Wed 18, May 2022 22:01:16 pm
17.   a)Name the type of respiration that is most efficient. b) Give a reason for your answer in (a) above. (Answered)
a)Name the type of respiration that is most efficient. b) Give a reason for your answer in (a) above. .
Posted On:Wed 18, May 2022 21:56:24 pm
18.   Name the site of anaerobic respiration in a cell. (Answered)
Name the site of anaerobic respiration in a cell. .
Posted On:Wed 18, May 2022 21:41:49 pm
19.   Give two differences in the products of anaerobic respiration between plants and animals. (Answered)
Give two differences in the products of anaerobic respiration between plants and animals. .
Posted On:Wed 18, May 2022 21:36:59 pm
20.   In an experiment, disinfected soaked bean seeds were put in a vacuum flask which was then fitted with a thermometer as shown in the diagram below. The temperature readings were taken every morning for three consecutive days. (a) Which process was being investigated? b) (i) What were the expected results? ii) Account for the answer in (b) (i) above c)Why were the seeds disinfected? d) Why was a (Answered)
In an experiment, disinfected soaked bean seeds were put in a vacuum flask which was then fitted with a thermometer as shown in the diagram below. The temperature readings were taken every morning for three consecutive days. (a) Which process was being investigated? b) (i) What were the expected results? ii) Account for the answer in (b) (i) above c)Why were the seeds disinfected? d) Why was a .
Posted On:Wed 18, May 2022 21:29:25 pm
21.   State two ways in which anaerobic respiration is applied in industries. (Answered)
State two ways in which anaerobic respiration is applied in industries. .
Posted On:Wed 18, May 2022 21:22:36 pm
22.   How are the mitochondria adapted to their function? (Answered)
How are the mitochondria adapted to their function? .
Posted On:Wed 18, May 2022 21:21:59 pm
23.   Explain how anaerobic respiration is applied in sewage treatment. (Answered)
Explain how anaerobic respiration is applied in sewage treatment. .
Posted On:Wed 18, May 2022 21:21:16 pm
24.   Explain what happens when there is oxygen debt in human muscles. (Answered)
Explain what happens when there is oxygen debt in human muscles. .
Posted On:Wed 18, May 2022 21:20:17 pm
25.   Give three factors that determine the amount of energy a human being require in a day. (Answered)
Give three factors that determine the amount of energy a human being require in a day. .
Posted On:Wed 18, May 2022 21:19:07 pm
26.   What is oxygen debt? (Answered)
What is oxygen debt? .
Posted On:Wed 18, May 2022 21:17:03 pm
27.   Name the products of anaerobic respiration in (i) Plants ii) Animals (Answered)
Name the products of anaerobic respiration in (i) Plants ii) Animals .
Posted On:Wed 18, May 2022 21:15:39 pm
28.   What is the end product of respiration in animals when there is insufficient oxygen supply? (Answered)
What is the end product of respiration in animals when there is insufficient oxygen supply? .
Posted On:Wed 18, May 2022 21:14:14 pm
29.   A dog weighing 15.2kg requires 216kj while a mouse weighing 50g requires 2736kj per day. Explain. (Answered)
A dog weighing 15.2kg requires 216kj while a mouse weighing 50g requires 2736kj per day. Explain. .
Posted On:Wed 18, May 2022 21:13:43 pm
30.   State the economic importance of anaerobic respiration in plants. (Answered)
State the economic importance of anaerobic respiration in plants. .
Posted On:Wed 18, May 2022 21:12:38 pm
31.   In what form is energy stored in muscles (Answered)
In what form is energy stored in muscles .
Posted On:Wed 18, May 2022 20:53:45 pm
32.   Name the substance which accumulates in muscles when respiration occurs with insufficient oxygen. (Answered)
Name the substance which accumulates in muscles when respiration occurs with insufficient oxygen. .
Posted On:Wed 18, May 2022 20:52:34 pm
33.   Other than carbon dioxide, name other products of anaerobic respiration (Answered)
Other than carbon dioxide, name other products of anaerobic respiration .
Posted On:Wed 18, May 2022 20:47:21 pm
34.   A process that occurs in plants is represented by the equation below. #C_6H_12O_6 2C_2H_5OH+2CO_2#+ Energy (a) Name the process (b)State the economic importance of the process named in (a) above (Answered)
A process that occurs in plants is represented by the equation below. #C_6H_12O_6 2C_2H_5OH+2CO_2#+ Energy (a) Name the process (b)State the economic importance of the process named in (a) above .
Posted On:Mon 16, May 2022 20:01:22 pm
35.   Describe mechanisms of opening and closing of stomata (Answered)
Describe mechanisms of opening and closing of stomata .
Posted On:Mon 16, May 2022 19:42:18 pm
36.   Describe the Process of inhalation in mammals (Answered)
Describe the Process of inhalation in mammals .
Posted On:Mon 16, May 2022 19:40:44 pm
37.   Give two reasons why accumulation of lactic acid during vigorous exercise leads to an increase in heartbeat. (Answered)
Give two reasons why accumulation of lactic acid during vigorous exercise leads to an increase in heartbeat. .
Posted On:Tue 26, April 2022 21:26:34 pm
38.   What are the three end products of anaerobic respiration in plants? (Answered)
What are the three end products of anaerobic respiration in plants? .
Posted On:Tue 26, April 2022 21:24:46 pm
39.   The diagram below shows a set up that was used to demonstrate fermentation. Glucose solution was boiled and oil added on top of it. The glucose solution was then allowed to cool before yeast suspension was added. (a) Why was the glucose solution boiled before adding the yeast? (b) What was the important of cooling the glucose solution before adding the yeast? (c) What was the use of oil in the (Answered)
The diagram below shows a set up that was used to demonstrate fermentation. Glucose solution was boiled and oil added on top of it. The glucose solution was then allowed to cool before yeast suspension was added. (a) Why was the glucose solution boiled before adding the yeast? (b) What was the important of cooling the glucose solution before adding the yeast? (c) What was the use of oil in the .
Posted On:Tue 26, April 2022 21:23:52 pm
40.   A person accidentally touches a hot pan and responds as illustrated in the diagram below. Explain how the response illustrated above occurs. (Answered)
A person accidentally touches a hot pan and responds as illustrated in the diagram below. Explain how the response illustrated above occurs. .
Posted On:Tue 26, April 2022 20:58:55 pm
41.   Distinguish between a simple and conditioned reflex action. (Answered)
Distinguish between a simple and conditioned reflex action. .
Posted On:Tue 26, April 2022 20:55:13 pm
42.   The diagram below represents a set up during an experiment (a) (i) What was the experiment investigating? ii) State the likely identify for substance K iii) Explain your answer in (a) (ii) above b) Account for the observation made in flask 2 (Answered)
The diagram below represents a set up during an experiment (a) (i) What was the experiment investigating? ii) State the likely identify for substance K iii) Explain your answer in (a) (ii) above b) Account for the observation made in flask 2 .
Posted On:Tue 26, April 2022 20:52:17 pm
43.   Below are components of a simple reflex pathway: Interneurone Muscle Motor neurone Sensory neurone Pain receptor Central nervous system List the components in their proper sequence during transmission of a nerve impulse (Answered)
Below are components of a simple reflex pathway: Interneurone Muscle Motor neurone Sensory neurone Pain receptor Central nervous system List the components in their proper sequence during transmission of a nerve impulse .
Posted On:Tue 26, April 2022 20:48:06 pm
44.   The diagram below represents the transverse section of the spinal cord. (a) Name the part labeled H (b) State two function of the fluid found in the parts labeled J c) Give a reason for the colour of the white matter (Answered)
The diagram below represents the transverse section of the spinal cord. (a) Name the part labeled H (b) State two function of the fluid found in the parts labeled J c) Give a reason for the colour of the white matter .
Posted On:Tue 26, April 2022 20:45:44 pm
45.   Give a reason why image is not formed when light is focused on blind spot (Answered)
Give a reason why image is not formed when light is focused on blind spot .
Posted On:Tue 26, April 2022 20:42:26 pm
46.   The diagram illustrates a nerve cell. (a) Name the type of nerve cell illustrated (b) Give a reason for your answer (c) Identify the part labeled J (Answered)
The diagram illustrates a nerve cell. (a) Name the type of nerve cell illustrated (b) Give a reason for your answer (c) Identify the part labeled J .
Posted On:Tue 26, April 2022 20:40:53 pm
47.   State the function of each of the following parts of a mammalian eye. (a) Eye lashes (b) Lachrymal glands (Answered)
State the function of each of the following parts of a mammalian eye. (a) Eye lashes (b) Lachrymal glands .
Posted On:Tue 26, April 2022 20:37:50 pm
48.   State three differences between tactic and tropic responses (Answered)
State three differences between tactic and tropic responses .
Posted On:Tue 26, April 2022 20:27:56 pm
49.   The diagram below represents the human ear. (a) Name the parts labeled E, F and G (b) How is each of the following adapted to its function? (i) External auditory meatus c) Name one defect of the human ear. (Answered)
The diagram below represents the human ear. (a) Name the parts labeled E, F and G (b) How is each of the following adapted to its function? (i) External auditory meatus c) Name one defect of the human ear. .
Posted On:Tue 26, April 2022 20:22:56 pm
50.   The diagram below illustrates a defect in the eye. Explain how the defect illustrated above can be corrected. (Answered)
The diagram below illustrates a defect in the eye. Explain how the defect illustrated above can be corrected. .
Posted On:Tue 26, April 2022 20:18:37 pm
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