DP Biology (first assessment 2025)

Test builder »

Question 22N.1A.HL.TZ0.37

Select a Test
Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1A.HL.TZ0.37
Level HL Paper 1A Time zone TZ0
Command term Question number 37 Adapted from N/A
37.
[Maximum mark: 1]
22N.1A.HL.TZ0.37

Movement of insects requires muscles in antagonistic pairs. The diagram shows an insect leg with muscles labelled X and Y.

[Source: Johnson, S.K., n.d. [Insect leg]. [diagram online] Available at: http://www.susankjohnson.com/portfolio.shtml
[Accessed 26 October 2021].]

 

What actions in the human arm are equivalent to muscle X contracting and muscle Y relaxing?

A.  triceps contracts, biceps relaxes, arm extends

B.  biceps contracts, triceps relaxes, arm flexes

C.  triceps contracts, biceps relaxes, arm flexes

D.  biceps contracts, triceps relaxes, arm extends

[1]

Markscheme

A

Syllabus sections