Answers062mde1 SE ECAD Fall 2025 - Q2 - NM-Biology - S1Unit Test

Prokaryotic and Eukaryotic Cells Answers

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What is a difference between starch and glycogen?

A
Starch stores energy, and glycogen provides structural support.
B
Starch is found in plants, and glycogen is found in animals.
C
Starch is composed of fructose, and glycogen is composed of glucose.
D
Starch is a monomer, and glycogen is a polymer.
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Which will increase the rate of a chemical reaction?

A
adding a catalyst
B
decreasing the pressure
C
decreasing the temperature
D
removing a catalyst
43

What would most likely happen if a person increased the amount of saturated fat in his or her diet?

A
The person's risk of cardiovascular disease would increase.
B
The person's risk of cardiovascular disease would decrease.
C
The person's bad cholesterol would decrease.
D
The person’s good cholesterol would increase.
44

The table shows the energy that is stored in three types of organic molecules.Energy Storage in HumansWhat is the best conclusion based on this data?

Question illustration
A
Blood is a primary location for energy storage.
B
Fat molecules contain more energy-containing bonds than simple sugars.
C
A gram of glycogen has twice as much energy as a gram of fat.
D
The human body stores approximately 1,000 kcal of glucose.
45

A scientist is examining the role of an element found in fats and carbohydrates of living things. This element makes up 65% of human body mass. Which statement describes the element he is studying?

A
He is studying oxygen, which can also be found in proteins.
B
He is studying oxygen, which is the most abundant element in the atmosphere.
C
He is studying nitrogen, which can also be found in proteins.
D
He is studying nitrogen, which is the most abundant element in the atmosphere.
46

Which two substances bind using a lock-and-key mechanism?

A
enzyme and substrate
B
reactant and substrate
C
substrate and product
D
reactant and product
47

How many amino acids must be obtained in the diet because they cannot be made by the body?

A
2
B
5
C
9
D
20
48

A substance that influences the reaction but does not participate in the reaction is a

A
catalyst
B
reactant
C
product
D
substrate

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