DP Biology (last assessment 2024)

Test builder »

Question 22N.1.HL.TZ0.4

Select a Test
Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1.HL.TZ0.4
Level HL Paper 1 Time zone TZ0
Command term Question number 4 Adapted from N/A
4.
[Maximum mark: 1]
22N.1.HL.TZ0.4

Scenedesmus is a microscopic, unicellular green alga. However, it often exists as multicellular colonies of cells.

[Source: www.mikro-foto.de 2010. Scenedesmus, a green algae. [image online] Available at:
https://commons.wikimedia.org/wiki/File:Mikrofoto.de-alge2.jpg [Accessed 13 January 2023]. Source adapted.]

 

The magnification of the image is 500×. What is the length of one cell?

A.  10 nm

B.  50 μm

C.  20 μm

D.  10 mm

[1]

Markscheme

C

Syllabus sections