Fig. 1.1 is a drawing made from an electron micrograph of a mammalian liver cell. (a) Complete the table by naming the structures B to G and stating one function of each. The first one (A) has been completed for you. name of organelle function --- --- --- A cell surface membrane controls movement of substances into and out of the cell B C D E F G (b) As shown in Fig. 1.1, liver cells contain many storage granules of glycogen. Describe the molecular structure of glycogen and…

Biology 9700/21 — October/November 2012

Cambridge AS Level · AS Level Structured Questions · worked solutions for every part, with the mark scheme

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Topics Biological Molecules · Cell Structure · Cell Membranes and Transport · Transport in Plants · The Mitotic Cell Cycle · Immunity · +2 more

Q1Cell StructureBiological MoleculesFree sample

Fig. 1.1 is a drawing made from an electron micrograph of a mammalian liver cell.

Fig. 1.1

(a)

Complete the table by naming the structures B to G and stating one function of each. The first one (A) has been completed for you.

	name of organelle	function
A	cell surface membrane	controls movement of substances into and out of the cell
B
C
D
E
F
G

(b)

As shown in Fig. 1.1, liver cells contain many storage granules of glycogen.

Describe the molecular structure of glycogen and explain how this structure makes it suitable for storage.

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