What can be concluded from this graph?

The enzyme lowers the energy of activation for the reaction.

What is the function of enzymes in biological systems?

Enzymes act as catalysts to drive chemical reactions forward

Which statement is incorrect regarding science?

Correct scientific conclusions are never subject to change.

What is NOT an example of qualitative data?

The average high daily temperature for the month of July

Which question cannot be answered scientifically because the quantity cannot be measured?

How happy is a chimpanzee when it finds its favorite food?

The reason that lipids and water will not mix is because -

water is polar and lipids are nonpolar

Enzymes only work with specific substrates because each substrate -

has a specific active site for enzyme attachment

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Macromolecules and Enzymes

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Macromolecules and enzyme questions, with a couple of review questions on water chemistry and scientific method

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Questions 15

Answers

1
What can be concluded from this graph?
The enzyme is consumed during the course of the reaction.
The amount of free energy produced increases with an enzyme.
The enzyme lowers the energy of activation for the reaction.
The reactants have less energy that the products.
2
What is the function of enzymes in biological systems?
Enzymes act as catalysts to drive chemical reactions forward
Enzymes bond with substrates to create new reaction products
Enzymes act as products to create new chemical reactions
Enzymes act as substrates if the proteins are unavailable
3
Which statement is incorrect regarding science?
Science is a changing field and theories can be modified.
Information is gathered by observation and experimentation.
Information is gathered using scientific method.
Correct scientific conclusions are never subject to change.
4
What is an example of a nucleic acid?
Vegetable oil
A sweet potato
A strand of DNA
Collagen found in human skin
5
What temperature would be considered the optimum temperature for this enzyme’s activity rate?
30°C
40°C
60°C
20°C
6
What is NOT an example of qualitative data?
The names of chemicals found in a breakfast cereal
Types of shoes worn by pedestrians on a city street
The average high daily temperature for the month of July
The zip codes in which each high school student resides
7
Which macromolecules are a prominent part of animal tissues that function in insulation?
Proteins
Carbohydrates
Lipids
Nucleic Acids
8
Which question cannot be answered scientifically because the quantity cannot be measured?
How much food does a water buffalo consume in one day?
How fast can a tiger swallowtail butterfly fly?
How happy is a chimpanzee when it finds its favorite food?
How heavy is a mature female elephant?
9
Molecule X contains chains of amino acids. What is molecule X?
Nucleic Acid
Adenine
Protein
Nucleotide
10
The substance on which an enzyme acts is the -
Product
Active site
Substrate
Activation energy
11
The reason that lipids and water will not mix is because -
water is nonpolar and lipids are polar
both water and lipids are polar
water is polar and lipids are nonpolar
both water and lipids are nonpolar
12
A substance with a pH of 4 is -
Neutral
Neither acidic nor basic
Basic
Acidic
13
Enzymes only work with specific substrates because each substrate -
has a specific active site for enzyme attachment
can only use a specific ionic bond with the enzyme
destroys its specific enzyme
actively interferes with other substrates around it
14
Which structure in the figure would mostly likely be used to form muscle and connective tissue?
4
3
1
2
15
All carbohydrates are -
Composed of C, H, and O atoms
Composed on C, H, O, and N atoms
are made of fatty acids
are made of amino acids

Macromolecules and Enzymes Flashcards | StudBud