EC Teacher Question Preview (ID: 44068)


Biology Unit 5 Test. TEACHERS: click here for quick copy question ID numbers.

Phospholipids, which make up the structure of the cell (plasma) membrane are examples of which organic compound?
a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids

Monosaccharides are monomers of which organic compound?
a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids

Which of the following organic compounds provides quick energy?
a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids

A single nucleotide is composed of which of the following substances?
a) A phosphate, a sugar, a nitrogen base
b) A phosphate, a sugar, a nucleic acid:
c) A phosphate, a sugar, a lipid
d) A phosphate, a sugar, ribosome

Which organic molecule carries or stores genetic information?
a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids

Proteins are made of long chains of __________________________
a) Monosaccharides
b) Amino acids
c) Fatty acids
d) Nucleotides

The distortion (change in shape) of enzyme molecules which occurs at high temperatures is known as?
a) Homeostasis
b) Denaturation
c) Replication
d) Transcription

A glycerol backbone and fatty acid chains are characteristics of which organic molecule?
a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids

Unless they are denatured by excessive heat or changes pH, enzymes are______
a) Buffers
b) Unchanged and reusable
c) Damaged
d) New products

Bears are able to hibernate all winter due to the fact that during the warm, summer months they store large amounts of _______________ which provides ________________ and _______________________.
a) Carbohydrates, quick energy and insulation
b) Proteins, quick energy and insulation
c) Lipids (body fat), quick energy and insulation
d) Lipids (body fat), long term energy and insulation

The monomers of carbohydrates are:
a) Nucleotides
b) Amino acids
c) Monosaccharides
d) Fatty acids

The monomers of nucleic acids are:
a) Nucleotides
b) Amino acids
c) Monosaccharides
d) Monosaccharides are simple sugars that make up the structure of more complex sugars

The monomers of proteins are:
a) Nucleotides
b) Amino acids
c) Monosaccharides
d) Fatty acids

Enzymes are used in the body to _______ chemical reactions by lowering the energy needed to start them.
a) slow down
b) speed up
c) change
d) stop

The structure of which organic molecule is characterized by a glycerol backbone and fatty acid tails?
a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids

The primary function of hemoglobin is to transport oxygen throughout the entire body via the red blood cells. Hemoglobin is composed of amino acids. Hemoglobin is classified as a(n):
a) Carbohydrate
b) Lipids
c) Protein
d) Nucleic acid

What are the 3 components of nucleotides?
a) DNA, phosphate, ribosomes
b) Phosphate, sugar, nitrogen base
c) Phosphate, sugar, ribosomes
d) Phosphate, sugar, proteins

Insulin is a hormone that regulates blood glucose levels. Insulin is composed of chains of amino acids held together by peptide bonds--therefore, insulin should be identified as a(n):________
a) Carbohydrate
b) Lipid
c) Protein
d) Nucleic acid

Select the answer choice that correctly pairs the organic compound with its function.
a) Carbohydrates - Long term energy storage.
b) Lipids - Provides quick energy
c) Nucleic acids - Stores genetic information and controls the synthesis of proteins.
d) Proteins- builds the structure of cellular membranes

Select the answer choice that correctly pairs the organic compound with its function.
a) Carbohydrates - quick energy.
b) Lipids - builds up muscles, skin, hair and nails.
c) Nucleic acids - provides long term energy
d) Proteins - builds the structure of cellular membranes

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