Snapquiz - Proteins

This is the Snapquiz on Proteins. Click here or use the embedded video if you haven't watched the lesson yet.

Question 1. Which substances do plants need to absorb dissolved in water from the soil to construct proteins?

Carbonate ions.
Sulphate ions.
Chloride ions.
Nitrate ions.

Question 2. What do plants construct proteins from?

Amino acids.

Question 3. Which part of our cells builds proteins?

The nucleus.
The cytoplasm.
The ribosomes.
The cell membrane.

Question 4. What is a mutation?

Random damage or change to a particular gene when copied.
Adaptation by a species to a new habitat.
The effects of genetically engineering DNA.
Changes in the structure of an organism due to radiation exposure.

Question 5. What happens to the long protein molecules after they're formed by a cell?

They flatten out into layers.
They curl up into shapes which are unique to each protein.
They curl up into one particular shape for all proteins.
They stretch out throughout the cell.

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