A)
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)
Proteins
Lipids
Carbohydrates
Nucleic Acids
Carbohydrates
A)
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)
slow down chemical reactions
dissolve in water
speed up chemical reactions
maintain a specific pH
speed up chemical reactions
A)
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)
Carbohydrates
Proteins
Nucleic Acids
Lipids
Nucleic Acids
A) Which structure below represents the most abundant molecule in lipids? (1 point)
Fatty acid molecules
A) 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)
water and carbohydrates
lipids and nucleic acids
lipids and carbohydrates
[nucleic acids and proteinD]
lipids and carbohydrates
A)
The structure labeled X in the image above most likely represents
(1 point)
a receptor molecule
an antibody
an enzyme
a hormone