Biology 9700 · AS & A Level · Testing for biological molecules
Testing for biological molecules — practice question
Fig. 1.1 shows a diagram based on an electron micrograph of a plant cell. Fig. 1.2 shows a diagram based on an electron micrograph of an animal cell. Neither diagram is complete.
(a)[2]
Explain how Fig. 1.1 may be recognised as a plant cell.
(b)[8]
Several organelles are absent from Figs 1.1 and 1.2. Details for these organelles appear in the shaded boxes in Table 1.1. Fill the blank boxes in Table 1.1 by writing the correct details beneath each column heading.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “It is identified as a plant cell because a cell wall is present (cellulose cell wall accepted).” …