Note AcademyNote Academy
Start

Biology · Oct / Nov 2022 · Paper 42 · Question 1

0610

As printed in the paper

The question as text

Phytoplankton consist of many species of single‑celled and many‑celled algae.

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme

  • 1(a)[1]

    Plants ;

  • 1(b)[1]

    190 (μm) ;

  • 1(c)[5]

    G

    F

    B

    D

    C

    A

    E

    ;;;;;

  • 1(d)[3]

    any three from:

    1

    phytoplankton are, producers / first trophic level / autotrophs ; 2

    converts (sun)light (energy) into chemical energy ; 3

    provide / source of, (named) food for, primary consumers / herbivores / second trophic level ;

    4

    make energy available to, (all) other trophic levels / (rest of) food web / food chain ;

    5

    ref to conversion of (water and) carbon dioxide to glucose ; AVP ; e.g. release / AW, nutrients when decompose

Practise this paper →

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.