General Biology I- Exam 2
General Biology I Exam 2Claudia Cummings, InstructorCreated by: Isaiah Newport
- 1.The four main macromolecules are ___________, _____________, ___________ and ___________
- 2.How many different types of amino acids make up proteins?
- A.
34
- B.
20
- C.
16
- D.
55
- 3.Carbohydrates are composed of:
- A.
Monosaccharides
- B.
Polysaccharides
- C.
Disaccharides
- 4.The molecule of DNA consists of two strands coiled together to form a ________ ________
- 5.Each enzyme catalyses only one type of reaction.
- A.
True
- B.
False
- 6.The main source of energy for life on Earth is sunlight.
- A.
True
- B.
False
- 7.What letters are short for Adenosine Triphosphate?
- 8.Lipids are generally _______.
- A.
Hydrophobic
- B.
Hydrophilic
- 9.Glycerol has only ____ carbons.(how many)
- 10.What are the 3 structures of a nucleotide?(multiple answers)
- A.
5 carbon sugar
- B.
Nitrogenous base
- C.
Phosphate group
- D.
Carboxyl group
- E.
Amino acid base
- 11.How many strands does DNA have?
- 12.What are the nitrogenous bases of DNA?
- A.
Adenine
- B.
Uracil
- C.
Thymine
- D.
Guanine
- E.
Cytosine
- 13.One DNA strand is complementary to the other, choose the correct ones below.(multiple answers)
- A.
A + C
- B.
T + G
- C.
A + T
- D.
G + C
- 14.What is the name of the process that joins monomers together to make polymers?
- A.
Hydrolysis
- B.
Monomerization
- C.
Protein formation
- D.
Coiling
- E.
Dehydration synthesis
- 15.In hydrolysis, __________________ , and in this process water is _________________________ .
- A.
A polymer breaks up to form monomers ... consumed
- B.
A monomer breaks up to form polymers ... produced
- C.
Monomers are assembled to produce a polymer ... consumed
- D.
Monomers are assembled to produce a polymer ... produced
- E.
A polymer breaks up to form monomers ... produced
- 16.Every protein (polypeptide) has a free ________________ on one end and a free ___________________ on the other end.
- A.
Carboxyl group......R group
- B.
Amino group.....carboxyl group
- C.
C-terminus........C-terminus
- D.
A-terminus.......A-terminus
- 17.A polypeptide is the same as a protein.
- A.
True
- B.
False
- 18.A_______ is a polymer constructed from a set of just 20 kinds of monomers called Amino Acids?
- 19.How many amino acids are there?
- A.
1000
- B.
20
- C.
61
- D.
2
- 20.What is a monomer?
- A.
A single unit of macromolecules
- B.
Multiple units of macromolecules
- C.
A type of protein
- D.
An organic compound
- 21.What is a polymer?
- A.
A single unit of macromolecules
- B.
Multiple units of macromolecules
- C.
A type of protein
- D.
An organic compound
- 22.How do you get from a monomer to a polymer?
- A.
Add water
- B.
Add carbon
- C.
Remove water
- D.
Remove carbon
- 23.How do you get from a polymer to a monomer?
- A.
Add water
- B.
Add carbon
- C.
Remove water
- D.
Remove carbon
- 24.What are carbohydrates?
- A.
Proteins
- B.
Fats, oils, etc..
- C.
Sugars, starches, etc..
- D.
The basis of genetics
- 25.What is the monomer of carbs?
- A.
Nucleotide
- B.
Amino Acid
- C.
Monosaccharide
- D.
Glycerol
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