AP Bio Unit 1 Test- Practice Test Part 2
This flashcard set focuses on identifying and comparing types of chemical bonds, such as hydrogen, ionic, and covalent bonds. It aids in understanding bond strength and electron sharing in molecular structures.
Fats from animals usually are liquid at room temperature.
a. True
b. False
False
Key Terms
Fats from animals usually are liquid at room temperature.
a. True
b. False
False
After hydrolysis of a triglyceride, we would have _____.
a. many amino acids
b. different types of nucleotides
c. fatty acids and glycerol
d. monosaccharides and disaccharides
fatty acids and glycerol
Which of the following is NOT a use/function of lipids?
a. speed up chemical reactions
b. insulation
c. plasma membrane component
d. long-term energy storage
speed up chemical reactions
Lipids are generally _____ due to an absence of polar groups.
hydrophobic
form the waterproof cuticle of plants that decreases water loss.
a. oils
b. steroids
c. waxes
d. phospholipids
waxes
Phospholipids have a hydrophilic head (phosphate group) and hydrophobic
tails (fatty acids).
a. True
b. False
True
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| Term | Definition |
|---|---|
Fats from animals usually are liquid at room temperature. | False |
After hydrolysis of a triglyceride, we would have _____. | fatty acids and glycerol |
Which of the following is NOT a use/function of lipids? | speed up chemical reactions |
Lipids are generally _____ due to an absence of polar groups. | hydrophobic |
form the waterproof cuticle of plants that decreases water loss. | waxes |
Phospholipids have a hydrophilic head (phosphate group) and hydrophobic | True |
The chemical characteristics of the amino acids are determined by their _____. | R group |
The plasma membrane is primarily composed of _____. | phospholipids |
Which of the following statements about cholesterol is TRUE? | all of the above |
Which of the following can bring about a change in protein shape? | either A or B |
The monomers of proteins are _____. | amino acids |
Which of the following specific kinds of proteins defends us against infectious agents? | antibodies |
When you boil an egg, the white becomes hard because the albumin protein is denatured | True |
The sequence of amino acids in a protein determines its _____. | primary structure |
Each of the twenty different amino acids has an amino group, a carboxyl group and | True |
All proteins have four levels of structure. | False |
The bond between two amino acids is ______. | known as a peptide bond |
Which of the following acts as an intercellular messenger? | hormone |
DNA is single-stranded, but RNA is double-stranded. | False |
In DNA, the number of purine bases always equals the number of pyrimidine bases. | True |
Which of the following is NOT found in a nucleotide? | peptide bonds |
Nucleotides joined together by condensation synthesis form _____. | nucleic acids |
The two strands of DNA are held together by _____ between the purine and | hydrogen bonds |
The nucleotide that supplies energy for condensation synthesis is _____. | adenosine triphosphate |
The molecule that stores the information about the order of amino acids in a protein is | DNA |