AnswersRVACR EcologyCharacteristics of Life

Proteins and Nucleic Acids Answers

0 verified answers1 views
2
Free Preview

Who first identified nucleic acids, and where were they discovered?

A
Friedrich Meischer discovered nucleic acids in blood cells.
B
Phoebus Levine discovered nucleic acids in plant cells.
C
James Watson and Francis Crick discovered nucleic acids in DNA.
D
Gerardus Johannes Mulder discovered nucleic acids in bacterial cells.
3

Which pair of statements best describes an essential amino acid?

A
It is an amino acid that contains peptide bonds. An example is proline.
B
It is an amino acid that contains nitrogen. An example is aspartic acid.
C
It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
D
It is an amino acid that can be produced by the body. Vitamin supplements maintain healthy levels.
5

Which component makes each amino acid unique?

A
amino group
B
carboxyl group
C
R group
D
phosphate group
6

Which protein serves as a chemical messenger?

A
hemoglobin
B
actin
C
myosin
D
insulin
8

Which is a difference between proteins and carbohydrates and fats?

A
Proteins are macromolecules; carbohydrates and fats are not.
B
Proteins are composed of monomers; carbohydrates and fats are not.
C
Carbohydrates and fats contain carbon, hydrogen, and oxygen; proteins do not.
D
Excess carbohydrates and fats are stored; excess proteins are not.
9

What effect has breast cancer research had on society?

A
People who have gene mutations have more treatment options.
B
People now face an increased risk of breast cancer.
C
The complete history of breast cancer is now known.
D
Breast cancer research has no impact outside of a lab.
10

Who discovered the monomers of nucleic acids?

A
Phoebus Levene
B
James Watson, Francis Crick, and Rosalind Franklin
C
Friedrich Miescher
D
Gerardus Johannes Mulder and Jöns Jacob Berxelius

Did you find these answers helpful?