One way a lipid is different from a carbohydrate is:

Carbohydrates are quick energy sources while lipids are stored slow burning energy.

Lipids and carbohydrates are the same.

They can never be found in the same food source.

What is the purpose of an enzyme?

control how many reactions occur

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

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 .

Which property of the carbon atom makes it an essential component of organic compounds?

Carbon can form four covalent bonds.

Carbon oxidizes to carbon dioxide.

Carbon is solid at room temperature.

Which part of an amino acid's structure makes it unique from other amino acids?

The placement of the Hydrogen atom.

What happens when enzymes are heated to a high temperature?

The shapes of the enzyme are altered or denatured

The enzymes' amino acid sequence changes.

Which factors can change the shape of an enzyme and thus denatures a enzyme?

Excessive heat and changes in pH

Exposure to bacteria and Amoebas

What is a valence electron?

The # of electrons in the last shell.

The sum of neutrons and protons.

Valence electrons are found

in the outermost energy levels of an atom

in the innermost energy level of an atom

in the middle energy levels of an atom

Why do all bonds form?

to fill the outermost energy level

so the number of protons equals the number of electrons

Macromolecules and Enzymes

Authored by Kelli Moon

Biology

9th - 12th Grade

54 Questions

NGSS covered

Used 95+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Used for short term (quick) energy.

carbohydrates

lipids

proteins

nucleic acids

Provides long term energy and insulation,

lipids

carbohydrates

nucleic acids

proteins

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Example include DNA and RNA

lipids

carbohydrates

proteins

nucleic acids

Monomer of this macromolecules contains a phosphate, sugar and nitrogen base

nucleic acid

lipid

carbohydrate

protein

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Building blocks of the body, hair , muscles etc.

protein

nucleic acid

lipids

carbohydrates

Is the main component of the cell membrane

lipids

protein

nucleic acid

carbohydrate

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The pictured molecule is glucose. Which macromolecule is made of this monomer?

lipid

protein

nucleic acid

carbohydrate

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Macromolecules and Enzymes

Used for short term (quick) energy.

Provides long term energy and insulation,

Example include DNA and RNA

Monomer of this macromolecules contains a phosphate, sugar and nitrogen base

Building blocks of the body, hair , muscles etc.

Is the main component of the cell membrane

The pictured molecule is glucose. Which macromolecule is made of this monomer?

The picture monomer is an amino acid. Which macromolecule is made of these?

Identify the macromolecule in the picture

Made of monomers of amino acids

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