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

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 0970/12 Oct/Nov 2018

6 The cell shown in the diagram has been magnified 3000 times. The diagram is 21 mm wide. What is the actual diameter of the cell? A 21 mm 21mm B 3000 C 21 mm  3000 3000 D 21mm

1 marks

Answer: B

This question in 0970/12 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 0970/11 May/June 2021

6 The diagram shows a beetle. X 33 mm Y The actual size of the beetle between X and Y is 15 mm. What is the magnification of the image? A 0.45 B 2.2 C 48 D 495

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2021

6 A student found four different worms in a sample of soil and drew diagrams of them. The diagrams were drawn with different magnifications. Which worm was the longest? length of magnification diagram / mm A 60 3 B 70 1 C 100 2 D 120 5

1 marks

Answer: B

This question in 0970/11 May/June 2022

6 The diagram shows an animal. The actual length of this animal is 0.6 mm. 60 mm What is the magnification of the diagram? A 10 B 100 C 1000 D 10 000

1 marks

Answer: B

This question in 0970/12 May/June 2022

6 A cell was viewed under a microscope. The actual length of the cell is 0.025 mm. The magnification of the image is ×400. What is the length of the cell in the image? A 10 mm B 100 mm C 1600 mm D 16 000 mm

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2022

5 The diagram shows a cell at ×1500 magnification. 0 1 2 3 4 5 6 7 8 9 10 cm What is the actual size of the cell? A 0.003 mm B 0.03 mm C 33 mm D 333 mm

1 marks

Answer: B

This question in 0970/11 May/June 2023

5 A diagram of a human red blood cell is shown. The length of line XY on the diagram is 40 mm. The actual width of the cell is 0.008 mm. X Y What is the magnification of the diagram? A ×500 B ×5000 C ×50 000 D ×500 000

1 marks

Answer: B

This question in 0970/12 May/June 2023

5 The diameter of an egg is 6.5 cm. A student draws the egg. The diameter of the egg in the drawing is 19.5 cm. What is the magnification of the drawing? A 0.3 B 3.0 C 6.5 D 300

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2023

4 The image shows an animal. The length of the animal in the image is 36 mm. The actual length of the animal is 12 mm. What is the magnification of the image? A ×0.3 B ×3 C ×43.2 D ×432

1 marks

Answer: B

This question in 0970/11 May/June 2024

6 The diagram shows a fly. X Y The line XY represents the length of the wing. The length of line XY is 26 mm. The actual size of the wing between X and Y is 4 mm. What is the magnification of the diagram? A ×0.15 B ×6.5 C ×22 D ×104

1 marks

Answer: B

This question in 0970/12 May/June 2024

6 Which magnification formula is correct? A magnification = actual size ÷ image size B magnification = actual size + image size C magnification = image size ÷ actual size D magnification = image size  actual size

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2024

6 Four students used a microscope to view some onion plant cells. Each student drew one of the cells. Each student calculated the actual length of the cell and the magnification of their drawing. Which student produced the longest drawing of a cell? actual length of magnification onion plant cell / mm of drawing A 0.120 150 B 0.125 300 C 0.150 225 D 0.200 175

1 marks

Answer: B

This question in 0970/11 May/June 2025

5 The table shows the magnifications and image lengths of three specimens when seen with a light microscope. image length specimen magnification / mm X 50 0.20 Y 150 0.50 Z 250 0.40 What is the order of increasing actual lengths of the specimens, from smallest to largest? A X  Y  Z B X  Z  Y C Y  X  Z D Z  Y  X

1 marks

Answer: D

This question in 0970/12 May/June 2025

5 The length of an insect in a diagram is 150 mm. The magnification of the diagram is 20. What is the actual length of the insect? A 0.13 mm B 3.0 mm C 7.5 mm D 130 mm

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2025