WorksheetsReview: Quiz Two
Total questions: 21
Worksheet time: 12mins
Which of the following is TRUE of a cell in an isotonic solution.
There will be no movement of water
The amount of water that enters the same is the same as the amount that leaves the cell
Water will leave the cell
Water will move into the cell
Which of the following types of membrane transport require a protein? Select all that apply!
Simple diffusion
Facilitated diffusion
Primary active transport
Secondary active transport
Osmosis
What is the difference between a channel and transporter protein?
Channels are peripheral proteins, and transporters are transmembrane proteins
Channels are only involved in active transport
Channels require energy
Transporters undergo a conformational change while channels do not
What are aquaporins?
Channel proteins that move water across a membrane
Transporter proteins involved in osmosis
Pores in the membrane
Vesicles that transport water around the cell
If water is moving OUT of a cell, this means the outside of the cell is (a) to the inside.
A(n) _____ protein is used in primary active transport.
Lipid-anchored
Periperal
Ion pump
Aquaporin
If water is moving INTO a cell, this means the outside of the cell is (a) to the inside.
Which of the following would DECREASE membrane fluidity? Select all that apply!
High amounts of cholesterol
Short phospholipid tails
Saturated phospholipid tails
High temperature
_____ would have the EASIEST time passing through the cell membrane.
Water
Glucose
H+
Carbon dioxide
_____ would have the HARDEST time passing through the cell membrane.
Water
Glucose
H+
Carbon dioxide
What is the monomer of a protein?
Amino acid
Phospholipid
Nucleotide
Simple sugars
Which of the following are a component of amino acids? Select all that apply!
Central calcium atom
Carboxyl group
Phosphate group
Amino group
Central carbon atom
Primary polypeptide structure is stabilized by (a) bonds.
Secondary polypeptide structure is stabilized by (a) bonds.
Carbon can form _____ ____________ bonds.
2; covalent
3; ionic
4; ionic
4; covalent
Which of the following are examples of secondary structure?
Linear polypeptide chain
Aplha helix
Amino acid
Beta pleated sheet
Which TWO things can denature a protein?
pH
Temperature
Water
Carbon
Describe the side-chain of this amino acid.
Non-polar and hydrophobic
Polar and uncharged
Polar and charged (basic)
Polar and charged (acidic)
Describe the side-chain of this amino acid.
Non-polar and hydrophobic
Polar and uncharged
Polar and charged (basic)
Polar and charged (acidic)
A ___________ is the bond that forms between two cysteine amino acids in __________ structure.
Covalent bond; primary
Ionic bond; quaternary
Hydrogen bond; secondary
Disulfide bridge; tertiary and quaternary
Proteins are formed via ________ reactions, in which water is a _______.
dehydration; reactant
dehydration; product
hydrolysis; reactant
hydrolysis; product
