___________ are some functions of lipids.

storing energy and cell membrane structure

providing actin & providing myosin

cellulose structure and digestive assistance

storing & transferring genetic info

Which of the following is a difference between DNA & RNA?

DNA does not contain a nitrogen base.

DNA is found only in eukaryotic cells.

Define selective permeability

allows substances to pass through plasma membrane while keeping others out

proteins that move waste materials

all the components of the plasma membrane

not able to go through plasma membrane

What 3 substances move among phospholipids?

Cholesterol, proteins, carbohydrates

amino acids, carbohydrates, cells

lipids, proteins, carbohydrates

cells, cholesterol, amino acids

What is the role of transport proteins?

Move needed substances or waste materials through plasma membrane

Move proteins sideways within plasma membrane

What is a fluid mosaic model?

organization of the plasma membrane

allows substances to pass through plasma membrane

maintaines balance in a cells survival

Move among tails of phospholipids

What is a phospholipid made out of?

Glycerol, Two fatty acids, and a phosphate group

Plasma, Membrane fluid, and Glucose

Carbohydrates, Proteins, and cholesterol

Ribosomes, Glycerol, and Plasma

The major difference between facilitated diffusion and active transport is...

Active transport requires energy input while facilitated diffusion does not.

Active transport moves with the concentration gradient while facilitated diffusion moves against the concentration gradient.

Active transport uses proteins while facilitated diffusion does not.

Active transport does not require energy input while facilitated diffusion requires energy input.

A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?

The water in the gums has moved out due to the high concentration of salt in the solution.

The swollen gums have absorbed the saltwater solution.

The saltwater solution lowers the temperature of the water in the gums.

The salt in the solution has moved against the concentration gradient.

The energy needed to power the sodium-potassium pump is provided by the

removal of a phosphate group from ATP

Na + ions enter cells by

diffusing through Na + ion channels

diffusing across the lipid bilayer without assistance

binding to Na + carrier proteins

What is a peptide bond?

Bond that holds two amino acids together.

A bond that holds hydrogen and oxygen molecules together.

A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.

A bond that is formed by the sharing of electrons.

Enyzmes are a very important type of protein used to

Send hormonal signals throughout body

Photosynthesize glucose in plants

Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?

reducing the number of products

increasing the temperature of the cell

increasing the concentration of reactants

a protein that transports oxygen

a nucleic acid that transports oxygen

a protein that regulates blood sugar level

a nucleic acid that carries genetic information

Which of the following conclusions can be drawn from this graph?

The optimum pH of the enzyme is 6.6.

The optimum pH of the enzyme is 5.8

The enzyme’s activity increases as pH increases 5.0 to 9.0

The enzyme’s activity is greater around pH of 8.0 .

The structural level of a protein least affected by hydrogen bonds is

all levels are equally affected

break complex molecules into simpler ones

make complex molecules from simpler ones

VCE Biology - Unit 3 AOS1 Revision

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80 Qs

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VCE Biology - Unit 3 AOS1 Revision

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11th - 12th Grade

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Practice Problem

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Medium

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80 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the monomers of carbohydrates?

Nucleotides

Amino Acids

Polysaccharides

Monosaccharides

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The monomer of a nucleic acid is

Monosaccharide

Amino Acid

Nucleotide

Triglyceride (3 Fatty Acids and 1 Glycerol)

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The purpose of nucleic acids is to store

Water

Minerals

Genetic Information

Energy

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which macromolecule is this?

carbohydrate

lipid

protein

nucleic acid

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biomolecule contains pastas and breads?

Lipid

Protein

Nucleic Acid

Carbohydrate

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biomolecule contains enzymes?

Carbohydrate

Lipid

Nucleic Acid

Protein

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Carbon, Hydrogen, Oxygen and Nitrogen

Carbohydrate

Lipid

Protein

Nucleic acid

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VCE Biology - Unit 3 AOS1 Revision

80 questions

What are the monomers of carbohydrates?

The monomer of a nucleic acid is

The purpose of nucleic acids is to store

Which macromolecule is this?

Which biomolecule contains pastas and breads?

Which biomolecule contains enzymes?

Carbon, Hydrogen, Oxygen and Nitrogen

The cell membrane is made up of

The cell wall in plants contains which carbohydrate?

DNA & RNA are composed of what two general types of molecules?

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