Molecular Biology Quiz
Preview:
Which is the primary molecule broken down for energy in cells?
A. salt
B. water
C. sugar
D. protein
What advantage do sugars provide for an organism’s diet?
A. Produce some energy for cells
B. Supply amino acids needed to build muscle
C. provide code for DNA offsprinc
What are the products of cellular respiration?
A. oxygen and sugar
B. carbon dioxide and sugar
C. oxygen and water
D. carbon dioxide and water
Which best describes the nutrients that are sources of energy for the body?
A. fats and proteins
B. water and carbohydrates
C. fats and carbohydrates
a thing that is not food; can be edible (like vitamins, medicine, and supplements) or an inedible thing.
A. nonfood
B. nutrients
C. vitamins
D. mineral
Which molecules are most closely linked to heart disease in humans?
A. carbohydrates
B. fats
C. proteins
Which best explains how mold is able to grow on an old piece of cheese in the refrigerator?
A. Mold is produced when the cheese ages and reacts with moisture in the air.
B. Mold is naturally contained within the cheese and spontaneously grows when the cheese becomes old.
C. Mold spores are present in the air, and the cheese provides the energy and building materials the mold needs to survive.
D. Mold spores are present in the air, and moisture in the air provides the energy and building materials the mold needs to survive.
Which activity would supply the most oxygen to the body for digestion and respiration?
A. sit-ups
B. running
C. stretching
D. lifting weights
Crystal is trying to increase the protein in her diet. Which foods will best satisfy this nutritional need?
A. Peas, fish, milk, and beans
B. Apples, carrots, juice, and rice
C. Kiwi, lettuce, tea, and strawberries
D. Watermelon, spinach, coffee, and pasta
Which most accurately describes how plants and animals obtain the energy they need for growth and survival?
A. Molecules are broken down during respiration to release stored energy.
B. Molecules are broken down during photosynthesis to release stored energy.
C. Animals produce energy through photosynthesis, while plants produce energy through respiration.
D. Animals produce energy through respiration, while plants produce energy through photosynthesis.
a chemical compound that is needed in small amounts for the human body to work correctly.
A. vitamins
B. nutrients
C. nonfood
D. minerals
something consumed by organisms that provides chemical energy
A. food
B. nonfood
C. energy
D. dietary supplements
Which digestive process initiates cellular respiration?
A. Eliminating waste
B. Filtering out harmful substances
C. Breaking down food into glucose
D. Chewing up food into smaller pieces
High levels of glucose in the blood may be a symptom of which disease?
A. asthma
B. diabetes
C. cancer
D. heart disease
When an organism oxidizes food, some of the energy is lost. Which best explains this loss of energy?
A. Energy is released as heat
B. Energy is stored for later use
C. Energy is converted to waste
D. Energy is converted to chemical compounds