The Cell Practice Exercise 1

A farmer took a diseased leaf sample to a lab in Kericho. The technician used the microscope shown below, with a ×6 eye-piece and a ×30 objective lens. What magnification was used to examine the leaf?

A farmer took a diseased leaf sample to a lab in Kericho. The technician used a microscope  with a ×6 eye-piece and a ×30 objective lens.  What magnification was used to examine the leaf?

A farmer took a diseased leaf sample to a lab in Kericho. The technician used a microscope  with a ×6 eye-piece and a ×30 objective lens.  What magnification was used to examine the leaf?

A farmer took a diseased leaf sample to a lab in Kericho. The technician used a microscope  with a ×6 eye-piece and a ×30 objective lens.  What magnification was used to examine the leaf? (1 mark)

A farmer took a diseased leaf sample to a lab in Kericho. The technician used a microscope  with a ×6 eye-piece and a ×30 objective lens.  What magnification was used to examine the leaf? (1 mark)

A farmer took a diseased leaf sample to a lab in Kericho. The technician used a microscope  with a ×6 eye-piece and a ×30 objective lens.  What magnification was used to examine the leaf? (1 mark)

In a Murang’a school lab, a learner used a microscope with an eye-piece lens of ×6 and an objective lens of ×25 to study banana leaf cells. What is the total magnification?

In a Murang’a school lab, a learner used a microscope with an eye-piece lens of ×6 and an objective lens of ×25 to study banana leaf cells. What is the total magnification?   (1mark)

In a Murang’a school lab, a learner used a microscope with an eye-piece lens of ×6 and an objective lens of ×25 to study banana leaf cells. What is the total magnification?   (1mark)

In a Murang’a school lab, a learner used a microscope with an eye-piece lens of ×6 and an objective lens of ×25 to study banana leaf cells. What is the total magnification?   (1 mark)

In a Murang’a school lab, a learner used a microscope with an eye-piece lens of ×6 and an objective lens of ×25 to study banana leaf cells. What is the total magnification?   (1 mark)

While looking through a microscope, Moraa saw two cells: one from a plant and one from an animal. Both had a nucleus and a jelly-like substance. What is the jelly-like part called, and what is its function?

While looking through a microscope, Moraa saw two cells: one from a plant and one from an animal. Both had a nucleus and a jelly-like substance. What is the jelly-like part called, and what is its function? (1 mark)

While looking through a microscope, Moraa saw two cells: one from a plant and one from an animal. Both had a nucleus and a jelly-like substance. What is the jelly-like part called, and what is its function? (1 mark)

While looking through a microscope, Moraa saw two cells: one from a plant and one from an animal. Both had a nucleus and a jelly-like substance. What is the jelly-like part called, and what is its function? (1 mark)

Why are red blood cells important in the body of a goat?

Why are red blood cells important in the body of a goat? (1 mark)

Why are red blood cells important in the body of a goat? (1 mark)

Which of the following best shows how plant cells help in feeding the plant?

Which of the following best shows how plant cells help in feeding the plant? (1 mark)

Which of the following best shows how plant cells help in feeding the plant? (1 mark)

Which of the following best shows how plant cells help in feeding the plant? (1 mark)

What is the main function of the large central vacuole in plant cells?

What is the main function of the large central vacuole in plant cells? (1 mark)

What is the main function of the large central vacuole in plant cells? (1 mark)

What is the main function of the large central vacuole in plant cells? (1 mark)

What is the main function of the vacuole in plant cells? (1 mark)

What is the main function of the vacuole in plant cells? (1 mark)

What is the main function of the vacuole in plant cells? (1 mark)

What is the main function of the vacuole in plant cells? (1 mark)

Why is it important to use the fine adjustment knob after switching to higher magnification?

Why is it important to use the fine adjustment knob after switching to higher magnification? (1 mark)

Why is it important to use the fine adjustment knob after switching to higher magnification? (1 mark)

Why is it important to use the fine adjustment knob after switching to higher magnification? (1 mark)

A group of learners wants to prepare a slide of an animal cell to observe under a microscope during a science lesson. What three parts should they look out for once they focus the microscope?   (3 marks)

A group of learners wants to prepare a slide of an animal cell to observe under a microscope during a science lesson. What three parts should they look out for once they focus the microscope?   (3 marks)

A group of learners wants to prepare a slide of an animal cell to observe under a microscope during a science lesson. What three parts should they look out for once they focus the microscope?   (3 marks)

Below is a diagram showing a plant cell with a thick cell wall. Maria noticed that sugarcane stalks remain upright even when tall. How does the part labeled in the diagram help with this? (1 mark)

Below is a diagram showing a plant cell with a thick cell wall. Maria noticed that sugarcane stalks remain upright even when tall. How does the part labeled in the diagram help with this? (1 mark)

Below is a diagram showing a plant cell with a thick cell wall. Maria noticed that sugarcane stalks remain upright even when tall. How does the part labeled in the diagram help with this? (1 mark)

Below is a diagram showing a plant cell with a thick cell wall. Maria noticed that sugarcane stalks remain upright even when tall. How does the part labeled in the diagram help with this? (1 mark)

Below is a diagram showing a plant cell with a thick cell wall.  Maria noticed that sugarcane stalks remain upright even when tall. How does the part labeled in the diagram help with this? (1 mark)

Below is a diagram showing a plant cell with a thick cell wall.  Maria noticed that sugarcane stalks remain upright even when tall. How does the part labeled in the diagram help with this? (1 mark)

Jane cut her finger, and after a few days, the skin grew back. How did cells help her body heal the cut? (1 mark)

In a science lesson, Amina is asked to observe a slide of animal cells using a microscope. She selects an eyepiece lens of ×10 and an objective lens of ×10. Calculate the total magnification Amina used. Then explain whether this setting is suitable for seeing the nucleus clearly, and suggest what she can do if it is not.  (3 marks)

In a science lesson, Amina is asked to observe a slide of animal cells using a microscope. She selects an eyepiece lens of ×10 and an objective lens of ×10. Calculate the total magnification Amina used. Then explain whether this setting is suitable for seeing the nucleus clearly, and suggest what she can do if it is not.  (3 marks)

In a science lesson, Amina is asked to observe a slide of animal cells using a microscope. She selects an eyepiece lens of ×10 and an objective lens of ×10. Calculate the total magnification Amina used. Then explain whether this setting is suitable for seeing the nucleus clearly, and suggest what she can do if it is not.  (3 marks)

During microscope observation, a learner asked why one cell looked box-like and the other looked round. Using the diagram below, explain why the plant cell has a regular shape and why the animal cell looks round. (2 marks)

During microscope observation, a learner asked why one cell looked box-like and the other looked round. Using the diagram below, explain why the plant cell has a regular shape and why the animal cell looks round. (2 marks)

During microscope observation, a learner asked why one cell looked box-like and the other looked round. Using the diagram below, explain why the plant cell has a regular shape and why the animal cell looks round. (2 marks)

During microscope observation, a learner asked why one cell looked box-like and the other looked round. Using the diagram below, explain why the plant cell has a regular shape and why the animal cell looks round. (2 marks)

During microscope observation, a learner asked why one cell looked box-like and the other looked round. Using the diagram below, explain why the plant cell has a regular shape and why the animal cell looks round. (2 marks)

Your class has run out of iodine solution while preparing slides of onion cells. Suggest an alternative approach to still make the specimen visible under the microscope and explain its limitations.  (2 marks)

Your class has run out of iodine solution while preparing slides of onion cells. Suggest an alternative approach to still make the specimen visible under the microscope and explain its limitations.  (2 marks)

Your class has run out of iodine solution while preparing slides of onion cells. Suggest an alternative approach to still make the specimen visible under the microscope and explain its limitations.  (2 marks)

Students at Gakuyo Primary School were presented with a diagram of an animal cell. Their teacher asked them to identify the part labeled A and to describe its function. What would be the correct responses to these questions? (1 mark)

Students at Gakuyo Primary School were presented with a diagram of an animal cell. Their teacher asked them to identify the part labeled A and to describe its function. What would be the correct responses to these questions? (1 mark)

Students at Gakuyo Primary School were presented with a diagram of an animal cell. Their teacher asked them to identify the part labeled A and to describe its function. What would be the correct responses to these questions? (2 marks)

Students at Gakuyo Primary School were presented with a diagram of an animal cell. Their teacher asked them to identify the part labeled K and to describe its function. What would be the correct responses to these questions? (2 marks)

Students at Gakuyo Primary School were presented with a diagram of an animal cell. Their teacher asked them to identify the part labeled K and to describe its function. What would be the correct responses to these questions? (2 marks)

A baby grows into a child because cells increase. How do cells help the body grow? (1 mark)