The Cell Practice Exercise 5

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 a science trip, students visited a lab where they observed blood cells under a microscope set at ×10 eyepiece and ×100 objective lens. Back in class, they tried using ×10 eyepiece and ×40 objective lens but could not see internal structures clearly. Using the knowledge of magnification, explain why they struggled and what magnification level was better for viewing blood cells.  (2 marks)

During a science trip, students visited a lab where they observed blood cells under a microscope set at ×10 eyepiece and ×100 objective lens. Back in class, they tried using ×10 eyepiece and ×40 objective lens but could not see internal structures clearly. Using the knowledge of magnification, explain why they struggled and what magnification level was better for viewing blood cells.  (2 marks)

During a science trip, students visited a lab where they observed blood cells under a microscope set at ×10 eyepiece and ×100 objective lens. Back in class, they tried using ×10 eyepiece and ×40 objective lens but could not see internal structures clearly. Using the knowledge of magnification, explain why they struggled and what magnification level was better for viewing blood cells.  (2 marks)

During a science trip, students visited a lab where they observed blood cells under a microscope set at ×10 eyepiece and ×100 objective lens. Back in class, they tried using ×10 eyepiece and ×40 objective lens but could not see internal structures clearly. Using the knowledge of magnification, explain why they struggled and what magnification level was better for viewing blood cells.  (2 marks)

You are in a science lab and you accidentally break a glass slide while preparing an onion cell sample. What safety steps should you take immediately, and how should you safely repeat the procedure? (5 marks)

You are in a science lab and you accidentally break a glass slide while preparing an onion cell sample. What safety steps should you take immediately, and how should you safely repeat the procedure? (5 marks)

You are in a science lab and you accidentally break a glass slide while preparing an onion cell sample. What safety steps should you take immediately, and how should you safely repeat the procedure? (5 marks)

You are in a science lab and you accidentally break a glass slide while preparing an onion cell sample. What safety steps should you take immediately, and how should you safely repeat the procedure? (5 marks)

Your classmate is having trouble identifying the chloroplast under the microscope while observing an onion cell. What advice would you give to help them find a plant cell that clearly shows chloroplasts? (2 marks)

Your classmate is having trouble identifying the chloroplast under the microscope while observing an onion cell. What advice would you give to help them find a plant cell that clearly shows chloroplasts? (2 marks)

Your classmate is having trouble identifying the chloroplast under the microscope while observing an onion cell. What advice would you give to help them find a plant cell that clearly shows chloroplasts? (2 marks)

A teacher said that we eat food so our cells can get energy. How do cells use the food we eat? (1 mark)

The diagram below shows a plant cell that lacks green coloring in the structure labeled chloroplast. What might happen to the plant if these structures fail, and why is this dangerous for survival? (2 marks)

The diagram below shows a plant cell that lacks green coloring in the structure labeled chloroplast. What might happen to the plant if these structures fail, and why is this dangerous for survival? (2 marks)

The diagram below shows a plant cell that lacks chloroplast. What might happen to the plant if these structures fail, and why is this dangerous for survival? (2 marks)

The diagram below shows a plant cell that lacks chloroplast. What might happen to the plant if these structures fail, and why is this dangerous for survival? (2 marks)

The diagram below shows a plant cell that lacks chloroplast. What might happen to the plant if these structures fail, and why is this dangerous for survival? (2 marks)

The diagram below shows a plant cell that lacks chloroplast. What might happen to the plant if these structures fail, and why is this dangerous for survival? (2 marks)

Examine the diagram of a light microscope. A student complains the image is dim and unclear. Which part should be adjusted and why?   ( 2marks)

Examine the diagram of a light microscope. A student complains the image is dim and unclear. Which part should be adjusted and why?   ( 2marks)

Examine the diagram of a light microscope. A student complains the image is dim and unclear. Which part should be adjusted and why?   ( 2marks)

Examine the diagram of a light microscope. A student complains the image is dim and unclear. Which part should be adjusted and why?   ( 2marks)

Examine the diagram of a light microscope. A student complains the image is dim and unclear. Which part should be adjusted and why?   ( 2marks)

Examine the diagram of a light microscope below. A student complains the image is dim and unclear. Which part should be adjusted and why?   ( 2marks)

Examine the diagram of a light microscope below. A student complains the image is dim and unclear. Which part should be adjusted and why?   ( 2marks)

Examine the diagram of a light microscope below. A student complains that when viewing a specimen, the image appears dim and unclear. Which part of the microscope should be adjusted to address this issue, and why?   ( 2 marks)

Examine the diagram of a light microscope below. A student complains that when viewing a specimen, the image appears dim and unclear. Which part of the microscope should be adjusted to address this issue, and why?   ( 2 marks)

A student complains that when viewing a specimen, the image appears dim and unclear. Which part of the microscope should be adjusted to address this issue, and why?   ( 2 marks)

A teacher showed learners two cells under a microscope. Only one cell had small green bodies. A student asked why the other cell did not have them. Name the green structures and explain their function. Why are they not found in the other cell? (2 marks)

A teacher showed learners two cells under a microscope. Only one cell had small green bodies. A student asked why the other cell did not have them. Name the green structures and explain their function. Why are they not found in the other cell? (3 marks)

A teacher showed learners two cells under a microscope. Only one cell had small green bodies. A student asked why the other cell did not have them. Name the green structures and explain their function. Why are they not found in the other cell? (3 marks)

Ali stated that only animal cells carry out important activities like respiration. However, Mariam disagreed, saying both types do. Which part helps both plant and animal cells carry out this process?

Ali stated that only animal cells carry out important activities like respiration. However, Mariam disagreed, saying both types do. Which part helps both plant and animal cells carry out this process? (1 mark)

Ali stated that only animal cells carry out important activities like respiration. However, Mariam disagreed, saying both types do. Which part helps both plant and animal cells carry out this process? (1 mark)

A side-by-side diagram of a plant cell and an animal cell shows three labeled parts: the nucleus, cytoplasm, and cell membrane. Which of the following parts are found in both cells?

Below is a side-by-side diagram of a plant cell and an animal cell showing labeled parts. Which of the following parts are found in both cells? (1 mark)

Below is a side-by-side diagram of a plant cell and an animal cell showing labeled parts. Which of the following parts are found in both cells? (1 mark)

Below is a side-by-side diagram of a plant cell and an animal cell showing labeled parts. Which of the following parts are found in both cells? (1 mark)

Below is a side-by-side diagram of a plant cell and an animal cell . Which of the following parts are found in both cells? (1 mark)

Below is a side-by-side diagram of a plant cell and an animal cell . Which of the following parts are found in both cells? (1 mark)

During a science activity, students observed that fish have gill cells, while goats have lung cells. What does this tell us about the role of cells in animals?

During a science activity, students observed that fish have gill cells, while goats have lung cells. What does this tell us about the role of cells in animals? (1 mark)

During a science activity, students observed that fish have gill cells, while goats have lung cells. What does this tell us about the role of cells in animals? (1 mark)

During a science activity, students observed that fish have gill cells, while goats have lung cells. What does this tell us about the role of cells in animals? (1 mark)

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)

What is the main function of the cytoplasm in an animal cell?

What is the main function of the cytoplasm in an animal cell?  (1 mark)

What is the main function of the cytoplasm in an animal cell?  (1 mark)

What is the main function of the cytoplasm in an animal cell?  (1 mark)

What is the main function of the cytoplasm in an animal cell?  (1 mark)

What is the main function of the cytoplasm in an animal cell?  (1 mark)

What is the main function of the cytoplasm in an animal cell?  (1 mark)

What is the main function of the cytoplasm in an animal cell?  (1 mark)

During an investigation, a student observed that chemical reactions inside some cells were slower, and the organelles were floating out of place. In the animal cell diagram, Label X points to the jelly-like material inside the cell. What part labeled X might be responsible?

During an investigation, a student observed that chemical reactions inside some cells were slower, and the organelles were floating out of place. What part labeled X might be responsible? (1 mark)

During an investigation, a student observed that chemical reactions inside some cells were slower, and the organelles were floating out of place. What part labeled X might be responsible? (1 mark)

During an investigation, a student observed that chemical reactions inside some cells were slower, and the organelles were floating out of place. What part labeled X might be responsible? (1 mark)

A farmer noticed that a cut on a cow's leg healed after a few days. What role did the cells play in this healing?

A farmer noticed that a cut on a cow's leg healed after a few days. What role did the cells play in this healing? (1 mark)

A farmer noticed that a cut on a cow's leg healed after a few days. What role did the cells play in this healing? (1 mark)

In Eldoret, a student incorrectly recorded the total magnification as 160 when using an eye-piece lens of ×8 and an objective lens of ×10. What should have been the correct magnification?

In Eldoret, a student incorrectly recorded the total magnification as 160 when using an eye-piece lens of ×8 and an objective lens of ×10. What should have been the correct magnification?  (1 mark)

In Eldoret, a student incorrectly recorded the total magnification as 160 when using an eye-piece lens of ×8 and an objective lens of ×10. What should have been the correct magnification?  (1 mark)

In Eldoret, a student incorrectly recorded the total magnification as 160 when using an eye-piece lens of ×8 and an objective lens of ×10. What should have been the correct magnification?  (1 mark)