WGU C190 intro to biology |OA| Objective Assessment|
Actual Questions and Answers Latest Updated
(Graded A+)
Correct
Incorrect
1 of 114
A patient has developed digestive upset. Questioning reveals she has
just gotten over a recent infection after having taken antibiotics.
Give this one a try later!
The antibiotics strengthened the The antibiotics eliminated all bacteria,
immune system, causing digestive including beneficial ones, from the
upset. patient's body.
The antibiotics enhanced the growth The antibiotics damaged the
of harmful bacteria in the patient's mutualistic bacteria found in the
gut. patient's gut.
, 2 of 114
Term
What is the main function of phospholipids in the membrane?
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determine the inside from the
facilitate protein synthesis
outside of the cell
regulate membrane fluidity provide energy for cellular processes
Don't know?
3 of 114
Term
Water can bind to the walls of these cells because they are____ When
water binds to the walls of the cells, this is called ________
Give this one a try later!
Nonpolar; cohesion Hydrophobic; tension
Ionic; repulsion Polar; adhesion
, Don't know?
4 of 114
Term
Explain why plants produce larger cells during wet seasons.
Give this one a try later!
These cells can transport more
These cells require less energy.
water.
These cells are more resistant to
These cells are easier to repair.
drought.
Don't know?
5 of 114
Term
The sugar-phosphate backbone is not the same for DNA and RNA.
What is different?
Give this one a try later!
, DNA is missing one oxygen on DNA is missing a phosphate group on
its sugar. its sugar.
DNA has an additional carbon on its DNA has an extra nitrogen on its
sugar. sugar.
Don't know?
6 of 114
Term
In DNA and RNA sequences, each letter corresponds to a single
nucleotide in the nucleic acid molecule. So, for example, the sequence
AGGU represents four RNA nucleotides linked in a chain. Which
components are present in a single nucleotide?
Give this one a try later!
A nucleotide includes a A nucleotide includes a nitrogenous
nitrogenous base, a 5-carbon base, a lipid chain, and a sulfate
sugar, and a phosphate group group.
A nucleotide includes a fatty acid, a
A nucleotide includes a protein, a 6-
4-carbon sugar, and a hydroxide
carbon sugar, and a carboxyl group.
group.
Don't know?
7 of 114
Actual Questions and Answers Latest Updated
(Graded A+)
Correct
Incorrect
1 of 114
A patient has developed digestive upset. Questioning reveals she has
just gotten over a recent infection after having taken antibiotics.
Give this one a try later!
The antibiotics strengthened the The antibiotics eliminated all bacteria,
immune system, causing digestive including beneficial ones, from the
upset. patient's body.
The antibiotics enhanced the growth The antibiotics damaged the
of harmful bacteria in the patient's mutualistic bacteria found in the
gut. patient's gut.
, 2 of 114
Term
What is the main function of phospholipids in the membrane?
Give this one a try later!
determine the inside from the
facilitate protein synthesis
outside of the cell
regulate membrane fluidity provide energy for cellular processes
Don't know?
3 of 114
Term
Water can bind to the walls of these cells because they are____ When
water binds to the walls of the cells, this is called ________
Give this one a try later!
Nonpolar; cohesion Hydrophobic; tension
Ionic; repulsion Polar; adhesion
, Don't know?
4 of 114
Term
Explain why plants produce larger cells during wet seasons.
Give this one a try later!
These cells can transport more
These cells require less energy.
water.
These cells are more resistant to
These cells are easier to repair.
drought.
Don't know?
5 of 114
Term
The sugar-phosphate backbone is not the same for DNA and RNA.
What is different?
Give this one a try later!
, DNA is missing one oxygen on DNA is missing a phosphate group on
its sugar. its sugar.
DNA has an additional carbon on its DNA has an extra nitrogen on its
sugar. sugar.
Don't know?
6 of 114
Term
In DNA and RNA sequences, each letter corresponds to a single
nucleotide in the nucleic acid molecule. So, for example, the sequence
AGGU represents four RNA nucleotides linked in a chain. Which
components are present in a single nucleotide?
Give this one a try later!
A nucleotide includes a A nucleotide includes a nitrogenous
nitrogenous base, a 5-carbon base, a lipid chain, and a sulfate
sugar, and a phosphate group group.
A nucleotide includes a fatty acid, a
A nucleotide includes a protein, a 6-
4-carbon sugar, and a hydroxide
carbon sugar, and a carboxyl group.
group.
Don't know?
7 of 114
