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WorksheetsN5 CB Revision
Total questions: 18
Worksheet time: 14mins
Identify THREE structural features present in an Elodea leaf cell but absent from a cheek epithelial cell.
(a)
Name FOUR structural features that a typical plant and animal cells have in common.
(a)
Match the functions of the following structures:
Photosynthesis
Chloroplast
Control of cell activities
Nucleus
Control of movement of substances into and out of the cell
Cell membrane
Aerobic respiration
Mitochondria
Osmosis is a form of (a) . It is a (b) process that (c) energy. During osmosis, (d) molecules move through a (e) permeable membrane down a concentration gradient
Animal cells left in a solution with a lower water concentration than their contents:
Shrink
Burst
Become turgid
Become plasymolysed
What is the name for movement of molecules/ions from a low concentration to a high concentration against a concentration gradient?
(a)
What is the name of the base at position 1 in the diagram?
A
T
C
G
What term is used to describe the temperature at which enzymes work best?
(a)
The diagram below shows how genetic information in the nucleus is used in the first stage of making a protein. Name molecule Y.
(a)
The diagram shows stages in the production of a protein in a cell. Which option identifies the exact location of each stage?
Stage 1 - Nucleus, Stage 2 - Cytoplasm
Stage 1 - Nucleus, Stage 2 - Ribosome
Stage 1 - Cytoplasm, Stage 2 - Ribosome
Stage 1 - Cytoplasm, Stage 2 - Nucleus
A single strand of DNA contains 830 adenine, 929 cytosine, 774 guanine and 615 thymine
bases.
How many guanine bases would be in the complementary strand?
615
774
830
929
The diagram below represents part of the process of genetic engineering. Structure X is removed from the bacterium and modified during this process. Name structure X.
(a)
Name 2 factors which affect the activity of enzymes
temperature
carbon dioxide concentration
light intensity
pH
Which row in the table identifies the order of stages involved in genetic engineering?
A
B
C
D
The diagram below represents a genetically engineered bacterial cell. The structure labelled X is a
Chromosome
Plasmid
Ribosome
Nucleus
Name Product Y from stage 1
(a)
The movement of the coloured liquid in the capillary tube can be used to measure the volume of
oxygen produced by respiration
carbon dioxide used up by respiration
oxygen used up by respiration
carbon dioxide produced by respiration
Where does aerobic respiration occur in living organisms?
(a)
