Molecular Biology Unit Test
Quiz by Deborah Roll
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- Q1
1. What advantage do sugars provide for an organism's diet?
provide the code for DNA of offspring
supply amino acids needed to build muscle tissue
to keep a person's blood sugar low
produce some energy for the cells
30s - Q2
2. Which BEST describes the nutrients that are sources of energy for the body?
fiber and fats
fats and proteins
fats and carbohydrates
water and carbohydrates
30s - Q3
3. Which BEST explains how mold is able to grow on an old piece of cheese in the refrigerator?
Mold is produced when the cheese ages and reacts with moisture in the air.
Mold spores are present in the air, and the cheese provides the energy and building materials the mold needs to survive and reproduce.
Mold is naturally contained within the cheese and spontaneously (suddenly) grows when the cheese becomes old.
Mold spores are present in the air, and moisture in the air provides the energy and building materials the mold needs to survive.
30s - Q4
4. Which BEST describes the process by which the energy from the sun is used to create glucose molecules?
fermentation
cellular respiration
chemosynthesis
photosynthesis
30s - Q5
5. When an organism oxidizes (burns) food, some of the energy is lost. Which best explains this loss of energy?
Energy is converted to chemical compounds.
Energy is released and lost as heat.
Energy is converted to waste.
Energy is stored for later use.
30s - Q6
6. Which MOST ACCURATELY describes how plants and animals obtain the energy they need for growth and survival?
Animals produce energy through photosynthesis, while plants produce energy through respiration.
Animals produce energy through respiration, while plants produce energy through photosynthesis.
Molecules are broken down during photosynthesis to release stored energy.
Molecules are broken down during respiration to release stored energy.
30s - Q7
7. Which is the primary molecule broken down for energy in cells?
sugar
protein
water
salt
30s - Q8
8. Crystal is trying to increase the protein in her diet. Which foods will BEST satisfy this nutritional need?
apples, carrots, juice, and rice
kiwi, lettuce, tea, and strawberries
peas, fish, milk, and beans
watermelon, spinach, coffee, and pasta
30s - Q9
9. What are the products of cellular respiration?
oxygen and water
carbon dioxide and sugar
oxygen and sugar
carbon dioxide and water
30s - Q10
10. Which BEST describes the process of photosynthesis?
Carbon dioxide and oxygen are converted into glucose and water.
Carbon dioxide and water are converted into glucose and oxygen.
Oxygen and water are converted into carbon dioxide and glucose.
Oxygen and glucose are converted into carbon dioxide and water.
30s - Q11
11. Which would be most beneficial to an individual suffering from heart disease?
Drinking a glass of fruit juice with every meal
Walking on a treadmill for 30 minutes a day and eating a high fiber diet.
Eating foods with a high calorie content
walking on a treadmill for 30 minutes a day and eating a low saturated fat diet.
30s - Q12
12. Which is most likely the result of a diet high in sugars and fats?
cancer
diabetes
tuberculosis
AIDS
30s - Q13
13. Which type of diet best contributes to a healthy lifestyle?
a diet high in protein and lipids
a diet high in fruits, vegetables, and lean protein
a diet high in carbohydrates, fruits, and vegetables
a diet high in fruits, vegetables, and lipids
30s - Q14
14. Which activity would supply the most oxygen to the body for digestion and respiration?
lifting weights
running
sit-ups
stretching
30s - Q15
15. Which digestive process initiates (begins) cellular respiration?
breaking down food into glucose
filtering out harmful substances in the food
eliminating waste
drinking water after you eat
30s