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WorksheetsBiology - Key Concepts
Total questions: 10
Worksheet time: 6mins
What is the function of a vacuole?
It contains the cellular DNA
It is the site of protein synthesis
It stores cell sap with nutrients e.g. water and sugar
It contains chlorophyll to absorb sunlight for photosynthesis
Energy in food can be measured using ...
Calorimetry
A scale
A gas syringe
Chromatography
The iodine test is used for testing the presence of what biological molecule in food?
Protein
Starch
Lipids
Reducing sugars
Carbohydrase breaks down ...
Sugars into starch
Proteins into amino acids
Starch into sugars
Amino acids into proteins
Nuclear DNA can be found in ...
Animal and plant cells
Animal and bacterial cells
Animal cells only
Plant and bacterial cells
Active sites and substrates must have...
the same shape
complimentary shapes
opposite shapes
complementary shapes
What is this cell organelle?
Chloroplast
Mitochondria
Flagellum
Nucleus
Osmosis requires a _________ _________ membrane.
(a)
Which reagent must be used to test for the presence of reducing sugars in food?
Benjamin's reagent
Iodine's reagent
Benedict's reagent
Ethanol's reagent
Which of the following is an adaptation of a sperm cell?
It has no nucleus to fit more haemoglobin in
It is ciliated to increase its surface area for absorption
It has a cell wall to provide protection against osmotic stress
It has many mitochondria to release energy for movement
