Which statement about active transport is true?
It involves the use of DNA.
It involves smaller molecules only.
It does not require transport proteins.
It requires ATP molecules.
CONCEPT
Facilitated Dif
...
Which statement about active transport is true?
It involves the use of DNA.
It involves smaller molecules only.
It does not require transport proteins.
It requires ATP molecules.
CONCEPT
Facilitated Diffusion
2
Which of the following statements about enzymes is true?
Enzymes are single-use proteins that must be regenerated after each
reaction.
Enzymes can only break down larger substances into smaller ones.
Enzymes are composed primarily of carbohydrates.
The function of an enzyme is to speed up chemical reactions that occur in
your body.
CONCEPT
Enzymes
3
Which of the following is a component of cell membranes and
includes a hydrophilic head, a glycerol backbone and two fatty acid
tails?
Nucleic acids
Fatty acids
Phospholipids
Triglycerides
CONCEPT
Plasma Membrane
4
What role do sensory receptors play in feedback loops to
maintain homeostasis?
Reverse the effects of stimuli
Respond to stimuli
Detect stimuli
Interpret stimuli
CONCEPT
Homeostasis
5
Amy wonders if it takes her longer to get home from work when it's raining.
Which of the following could be her observation?
"Based on many tests, I realize that it does indeed take me longer to get
home from work on rainy days."
"I propose that it takes me longer to get home from work when it's raining."
"I notice that I get home from work later on rainy days."
"Does rain have an impact on the length of my evening commute?"
CONCEPT
Scientific Method
6
What is chromatin?
A form of uncondensed DNA found within the nucleus of the cell
A structure found within the nucleus that produces subunits of ribosomes
A condensed form of DNA that occurs when the cell is dividing
A cell organelle that houses the DNA and controls activity within the cell
CONCEPT
Nucleus
7
Which of the following sources of information is most credible?
An article in the science section of a local newspaper
An article in a popular magazine
An article in a peer-reviewed journal
An article written for the school paper by a science teacher
CONCEPT
Evaluate Information
8
What is a nucleotide?
An organelle found in eukaryotic cells that houses the DNA and controls
activity within the cell
A component of DNA and RNA made up of sugar, a phosphate group and a
nitrogen base
A nucleic acid that produces protein in cells
A nucleic acid tha
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