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WorksheetsCh.1 - Ch. 6
Total questions: 15
Worksheet time: 5mins
Which organelle is involved in the formation of spindle fibres?
Nucleus
Ribosome
Lysosome
Centriole
What is the effect to the cell if there is no smooth endoplasmic reticulum?
No energy product
No synthesis of lipids
No synthesis of protein
No modification of protein
An experiment shows the plasma membrane of red blood cell loses its shape when immersed in 1.5% sodium chloride solution. What causes the red blood cell to lose its shape?
Water diffuses into the cell by diffusion.
Water diffuses out of the cell by osmosis.
Sodium chloride diffuses into the cell by active transport.
Sodium chloride diffuses out of the cell by facilitated diffusion.
The graph shows the effect of substrate concentration on the rate of reaction. Which of the following conclusions can be deduced from the graph?
Enzyme concentration is the limiting factor at level Z.
When the concentration of substrate is increased from X to Y, more substrate molecules are available to bind with the active side of the enzymes.
At concentration Y, no more reaction takes place as all the active sites of enzymes are fully saturated.
Rate of reaction at level Z can be increased if more substrate is added in the reaction.
What are X and Y?
X : Mitosis
Y: Meiosis
X : Fertilisation
Y: Meiosis
X : Meiosis
Y: Mitosis
X : Fertilisation
Y: Mitosis
Diagram above shows events of phase X in a cell cycle.
What is phase X?
G1
G2
Mitosis
Cytokinesis
Diagram above shows the mechanism of enzyme action.
Which part labelled A, B, C or D represents the substrate?
A
B
C
D
Which structure A, B, C or D controls the movement of substances into and out of the cell?
A
B
C
D
Name the following structures:
Cell S →
(a)
Based on the results of the experiment, what is the characteristic shown by L?
less permeable
semi-permeable
non-permeable
fully permeable
Name the proscess that occurs in the experiment.
simple diffusion
osmosis
active transport
facilitated diffusion
What is the process that occurs when a red blood cell is immersed in a hypertonic solution?
Crenation
Haemolysis
Plasmolysis
Deplasmolysis
Which food contains saturated fats?
Butter
Corn oil
Margerine
Coconut oil
An organism has 36 chromosomes.
How many chromosomes in the daughter cell that are formed through mitosis?
18
36
54
72
Which of the following helps enzyme to function well?
Product
Cofactor
Inhibitor
Substrate
