30 Questions
The enzyme worked quickest at _______ °C.
50
Explain why the iodine solution remained blue-black at 80 °C.
high temperature
A high cholesterol concentration in the blood can lead to blockages inside _______.
arteries
The coronary arteries supply blood to the _______ muscle.
heart
Doctors can measure the concentration of cholesterol in the _______.
blood
Table 3 shows four different blood cholesterol _______.
categories
Viruses reproduce inside ______, damaging them.
cells
A vaccine can protect humans from a viral ______.
disease
What does the vaccine contain? A weakened form of a ______.
virus
Which graph shows how the concentration of antibodies in a person’s blood changes after the first and second ______?
vaccinations
TMV affects the rate of ______ in plants.
photosynthesis
Which part of a plant shows discolouration caused by TMV? ______.
Leaf
A cactus is a plant that lives in a ______ environment.
dry
Some desert plants only grow leaves after it has ______.
rained
How could the leaves falling off the plant be an advantage to a plant that lives in a ______ environment?
dry
Complete Figure 5: You should label the y-axis, add the correct scale to the y-axis, plot the data from Table 1, label each ______.
bar
What conclusion can be made from the data in Table 1? A high level of TMV infection reduces ______ in a plant.
growth
A plant may produce poisons that make animals unwell. What is this type of defence mechanism? Tick () one box. Chemical Mechanical ______.
Physical
Carbohydrates are needed as part of a balanced diet. Which formula shows glucose?
C6H12O6
Which type of enzyme breaks down starch?
Carbohydrase
Name one substance transported through the xylem in the stem of the cactus.
water
Name the tissue that transports dissolved sugars through the stem of the cactus.
phloem
What name is given to a group of tissues working together?
Organ
What is the advantage to the cactus of having a green stem?
photosynthesis
Immediately add two drops of ______ solution to the amylase-starch solution mixture on the spotting tile.
iodine
Record the ______ of the iodine solution added to the amylase-starch solution mixture.
colour
Repeat steps 3 to 5 every ______ until the iodine solution is yellow-brown.
minute
Why were the starch solution and the amylase solution left for five ______ before mixing them together?
minutes
How many ______ did it take until the iodine solution and amylase-starch solution mixture was yellow-brown?
minutes
How could a more accurate ______ be obtained?
time
This quiz is about analyzing data on the level of TMV infection in plants and its impact on the rate of photosynthesis. Questions involve interpreting Table 1, labeling a bar graph, and drawing conclusions based on the data provided.
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