WorksheetsBiomolecules & Enzymes
Total questions: 20
Worksheet time: 10mins
Lipids/Carbohydrate provide long-term energy for cells.
Lipids
Carbohydrates
Lipids / carbohydrates are also called fats.
Lipids
Carbohydrates
DNA and RNA are made up of nucleotides / amino acids.
nucleotides
amino acids
Nucleic acids / Carbohydrates provide proteins with specific instructions for cell growth and repair.
Nucleic acids
Carbohydrates
Polymers can be broken down into other polymers / monomers.
other polymers
monomers
How many calories are in the food label?
240
220
0
53
How many grams of short-term energy does this food label contain?
220
46
4
11
How many grams of lipids does this food label contain?
220
46
4
11
How many grams of the biomolecule used for cell growth and repair are in the food label?
220
46
4
11
Which two biomolecules are used for energy?
Carbohydrates and Proteins
Lipids and Carbohydrates
Proteins and Lipids
Nucleic Acids and Proteins
Which of the following has the correct monomer matched?
Protein -> Nucleotide
Carbohydrate -> Monosaccharide
Lipids -> Amino Acid
Nucleic Acid -> Glycerol & Fatty Acid
What is represented by letter A
Enzyme
Substrate
Active Site
Enzyme Substrate Complex
What does an enzyme do to a chemical reaction?
Speeds it up (catalyzes)
Slows it down
Breaks it down
What happens to an enzyme after it releases the product?
Enzyme is expelled from the cell.
Enzyme is denatured and can no longer catalyze a reaction
Enzyme is re-used and attaches to a new substrate
Enzyme becomes the product
All of the following can cause an enzyme to work less effectively EXCEPT -
Concetration (amount of) substrate
Temperature
pH
Perfect Conditions
Which of the following best defines denature?
An enzyme working in optimal conditions
An enzyme's shape changes causing it to no longer catalyze reactions.
A substrate's shape changes to match the enzyme
An enzyme shape changes to match the substrate.
What are the 2 factors that denature an enzyme?
pH and concentration
concentration and temperature
temperature is the only factor
pH and temperature
Based on the graph, what is the optimal temperature for the enzyme?
20
40
43
60
Based on the graph, what pH does Enzyme C work best at?
1.5
6
8
9
What does an enzyme do for the activation energy?
It raises it
It slows it down
It speeds it up
It reduces it
