Use the chart to answer the following question.
Biomolecule Elements Function
Protein C, H, O Used for short term energy
Lipids C, H, O Used by the body for grown and repair
Nucleic Acids C, H, O, N, P Used to store and transmit genetic information
Carbohydrate C, H. O, N Used to control the rate of reactions and regulate cell processes
Which molecule in the chart above is paired with its correct elements and function?
(1 point)
Responses
Nucleic Acids
Nucleic Acids
Lipids
Lipids
Proteins
Proteins
Carbohydrates
Carbohydrates
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Nucleic Acids is the correct answer.
The digestion of food involves the body’s use of enzymes to assist in breaking down organic compounds. The following chart illustrates the amount of time necessary for protein digestion in varying conditions.
Digestion Rates or Protein
Reaction Seconds
Protein only 60
Protein + Acid 30
Protein + Acid + Enzyme 10
This chart provides evidence that enzymes
(1 point)
Responses
maintain a specific pH
maintain a specific pH
speed up chemical reactions
speed up chemical reactions
dissolve in water
dissolve in water
slow down chemical reactions
speed up chemical reactions
In 1931, a chemist named Arthur Fox was pouring some powdered PTC (phenylthiocarbamide) into a bottle when some of the powder accidentally blew into the air. A colleague standing nearby complained that the dust tasted bitter. Fox tasted nothing at all. Curious how they could be tasting the chemical differently, they tasted it again. The results were the same. Fox had his friends and family try the chemical then describe how it tasted. Some people tasted nothing. Some found it intensely bitter, and still others thought it tasted only slightly bitter (from The University of Utah Genetic Science Learning Center, 2013). It is estimated that 70% of the population can taste PTC and 30% cannot. We also know that the ability to taste PTC is passed from parent to child.
Which of the following molecules is responsible for the fact that parents who can taste PTC will most often have children who can taste PTC?
(1 point)
Responses
Nucleic Acids
Nucleic Acids
Proteins
Proteins
Lipids
Lipids
Carbohydrates
Nucleic Acids
Which structure below represents the most abundant molecule in lipids?(1 point)
Responses
The structure representing the most abundant molecule in lipids is missing from the information provided.
All organic compounds are essential for life. Some compounds act as building blocks for muscle tissue and hair. Others are responsible for determining which traits are inherited by an organism. Which of the following combination of macromolecules provide energy for basic life functions?(1 point)
Responses
lipids and nucleic acids
lipids and nucleic acids
[nucleic acids and proteinD]
[nucleic acids and proteinD]
water and carbohydrates
water and carbohydrates
lipids and carbohydrates
The correct combination of macromolecules that provide energy for basic life functions is lipids and carbohydrates.
The structure labeled X in the image above most likely represents
(1 point)
Responses
an antibody
an antibody
a receptor molecule
a receptor molecule
an enzyme
an enzyme
a hormone