Size of specimens — Paper 2 · IGCSE Biology (9-1) 0970

5 The diagram shows a xylem vessel in a plant stem. The magnification is ×400. X X Y Y ×400 What is the actual width of the xylem vessel along the line XY? A 8.75 µm B 14 µm C 87.5 µm D 140 µm

1 marks

Answer: C

This question in 0970/22 May/June 2019

5 The diagram shows a drawing of a human cheek cell. X Y The distance between points X and Y on the diagram is 30 mm. The actual length of the cell between X and Y was 60 µm. What is the magnification of the cell? A ×50 B ×200 C ×500 D ×2000

1 marks

Answer: C

This question in 0970/22 Oct/Nov 2019

4 The diagram shows a human liver cell. M The length of structure M on the diagram is 6 mm. The magnification of the diagram is x 2000. What is the actual length of M? A 0.03 µm B 3 µm C 333 µm D 12 000 mm

1 marks

Answer: B

This question in 0970/22 May/June 2020

4 The diagram shows an image of a chloroplast. The image is 5 cm long. The actual length of the chloroplast is 5 m. What is the magnification of the image? A 10 B 1000 C 10 000 D 100 000

1 marks

Answer: C

This question in 0970/22 Oct/Nov 2020

6 A photograph shows a plant cell nucleus measuring 2 mm across. If the magnification of the cell is 500, what is the actual size of the nucleus? A 0.00002 mm B 0.004 mm C 0.04 mm D 250 mm

1 marks

Answer: B

This question in 0970/21 May/June 2021

6 A photograph shows a plant cell nucleus measuring 2 mm across. If the magnification of the cell is 500, what is the actual size of the nucleus? A 0.00002 mm B 0.004 mm C 0.04 mm D 250 mm

1 marks

Answer: B

This question in 0970/22 May/June 2021

4 The length of a mitochondrion in a photomicrograph is 15 mm. The actual length of the mitochondrion is 3 m. What is the magnification of the photomicrograph? A 5 B 45 C 5000 D 45 000

1 marks

Answer: C

This question in 0970/22 Oct/Nov 2021

4 The photomicrograph shows a plant cell. The length of line XY is 90 mm. The actual length of the cell is 30 µm. X Y What is the magnification of the photomicrograph? A ×300 B ×3000 C ×33 000 D ×330 000

1 marks

Answer: B

This question in 0970/21 May/June 2023

4 In the diagram of the palisade cell, the distance between X and Y is 20 mm. The actual width of the cell between X and Y is 40 µm. X Y What is the magnification of the diagram? A ×200 B ×500 C ×2500 D ×5000

1 marks

Answer: B

This question in 0970/22 May/June 2023

5 The length of a bacterium in a diagram is 50 mm. The magnification of the diagram is ×5000. What is the actual length of the bacterium? A 1 µm B 10 µm C 100 µm D 1000 µm

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2023

4 A student draws a red blood cell. The diameter of the red blood cell they draw is 20 mm. The actual diameter of the red blood cell is 0.008 mm. What is the magnification of the student’s drawing? A ×0.0004 B ×0.16 C ×250 D ×2500

1 marks

Answer: D

This question in 0970/21 May/June 2024

6 A specimen is viewed under a microscope with a 10 magnification. The specimen image measures 30 mm. What is the actual size of the specimen? A 3 m B 30 m C 300 m D 3000 m

1 marks

Answer: D

This question in 0970/22 Oct/Nov 2024

5 A student measured the length of a structure using a microscope. The magnification used was 250. The image size of the structure was 5.00 mm. What was the actual length of the structure? A 1.25  103 mm B 1.25  103 m C 2.00  101 m D 2.00  10–5 m

1 marks

Answer: C

This question in 0970/22 May/June 2025