(a)
Prokaryotes and plant cells have cell walls.
Outline the composition of the cell wall of a prokaryote and the composition of the cell wall of a plant cell to show how they differ.
[ 2 ]
[Maximum number: 1]
Which size of ribosome is found in mitochondria?
A
60 S
B
70S
C
80 S
D
90 S
[Maximum number: 1]
Which size of ribosome is found in chloroplasts and typical prokaryotic cells?
A
60 S
B
70 S
C
80 S
D
90 S
[Maximum number: 1]
What are found in both mitochondria and typical prokaryotic cells?
A
70 S ribosomes and circular DNA
B
70S ribosomes only
C
80 S ribosomes and circular DNA
D
circular DNA only
[Maximum number: 1]
Which size of ribosome is found in chloroplasts?
A
60 S
B
70S
C
80 S
D
90 S
[Maximum number: 1]
Which feature is found in both prokaryotic and plant cells?
A
cell wall
B
DNA bound to protein
C
endoplasmic reticulum
D
Golgi apparatus
[Maximum number: 1]
Fig. 1.1 is a transmission electron micrograph of a cell from the root of thale cress, Arabidopsis thaliana.
Fig. 1.1
(a)
(i)
The structures labelled A and B on Fig. 1.1 are sections of two mitochondria.
Suggest why A and B are different shapes.
[ 1 ]
[Maximum number: 1]
Fig. 1.1 is a transmission electron micrograph of part of an animal cell.
Fig. 1.1
(a)
Name one structure, visible in Fig. 1.1, that would also be present in a prokaryotic cell.
[ 1 ]
[Maximum number: 2]
Fig. 1.1 is an electron micrograph of a mitochondrion.
Fig. 1.1
(a)
Scientists think that mitochondria were once prokaryotes. The evidence for this is that mitochondria have features in common with prokaryotes.
State two features that mitochondria have in common with prokaryotes.
1.
2.
[ 2 ]
[Maximum number: 4]
Vibrio cholerae is a prokaryotic organism.
Fig. 1.1 shows the structure of a cell of V. cholerae.
Fig. 1.1
(a)
Locate the structures in Fig. 1.1 that apply to each of the features shown in Table 1.1. Complete Table 1.1 by writing the appropriate letter and the name of the structure. You must only give one letter in each case. You may use each letter once, more than once or not at all. The first answer has been completed for you.
Table 1.1
[ 4 ]