What is the purpose of an enzyme?

give permission for the reaction

control how many reactions occur

The enzyme known as ‘catalase’ is involved in the breakdown of hydrogen peroxide molecules into separate water and oxygen molecules. During this reaction, what happens to the ‘catalase’?

The enzyme would remain unchanged in any way.

The enzyme would become products: O2 and H20

The enzyme would be fully used up and discarded.

The enzyme would become a new type of enzyme.

Enzymes need certain environmental conditions in order to function properly. What happens when enzymes are heated to a high temperature?

they change their amino acid sequence

Why is the “lock and key” analogy often used to describe enzyme function?

Each enzyme will fit with only one specific kind of substrate.

Each enzyme is the same as its substrate.

Each enzyme can only be used once in a reaction and cannot be used again.

Each enzyme has its own active site that will not fit with other active sites.

Which best describes the importance of lipids to organisms?

They serve as cellular membrane components and as concentrated energy storage.

They provide keratin in hair and outer layers of the skin.

They keep cellular organelles hydrated within an organism.

They provide storage for cellular waste within an organism.

Which of these statements describes how monomers combine and create macromolecules?

Amino acids combine to make proteins.

Glucose molecules combine to make nucleic acids.

Nucleic acids combine to make starch.

Proteins combine to make glucose.

What is the purpose of an enzyme?

Lower activation energy, which speeds up reactions

Give permission for the reaction

Raise activation energy, which speeds up reactions

Control how many reactions occur

The function of the nucleic acid is --

to store and transmit genetic information inherited from your parents

to maintain our body temperature

to build up muscles bones and other body parts

to regulate sugar in your blood and give your cells energy

Two organs of the same system will-

work together to perform a function

work independently because they don't need each other

Which list the levels of organization in order from smallest to largest?

biomolecules-organelles-cells-tissue-organ-organ system-organism

cell-organ-tissue-biomolecules-organism

organism-organ system-organ-tissue-cells-organelles-biomolecules

organism-atom-cell-organ system-organ-biomolecules

Which of the following determines an enzyme's effectiveness?

not enough enzymes; too many substrates

Which of the following statements is NOT part of the cell theory?

Only animals are made of cells.

Cells are the basic unit of structure & function in all living things.

All cells are made from other cells.

All living things are made of cells.

Which is NOT a part of cell theory?

Anything that moves is made of cells

All cells come from other cells All cells come from other cells

All living things are made of cells

Cells are the basic units of structure & function

Cells are the basic units of life for a cell.

All living cells must have a cell wall.

All living cells require glucose for survival.

Which of the following is NOT one of the main components of the cell theory?

All living things are made of cells

Cells can only come from other cells

Cells are the basic unit of life

When cells are damaged, new cells are created by cell division. How does the cell theory support this fact?

Cells come from previously existing cells.

All cells have a nucleus which divides.

All living things are made up of one or more cells.

The basic units of structure & function are cells.

What is one way in which all living things on Earth are alike?

All living things are made of cells & come from other cells.

All things that move are alive .

Choose the correct order of organization from simplest to most complex.

cells --> tissues -->organs --> organ systems --> organism

tissues --> cells --> organs --> organism --> organ system

organism --> organ system --> organs --> tissues --> cells

organs --> organ system --> tissues --> organism --> cells

DA#1 Review

Authored by Christine Mahand

Biology, Science

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56 questions

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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 helps form body structures like muscles?

Nucleic Acid

Carbohydrate

Protein

Lipids

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biomolecule is responsible for insulation and long term energy storage?

Protein

Nucleic Acid

Lipid

Carbohydrate

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biomolecule includes sugars, cellulose and starch?

Lipids

Proteins

Carbohydrates

Nucleic Acid

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biomolecule is made of the monomer amino acids?

Nucleic Acid

Carbohydrate

Protein

Lipid

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biomolecule is your main source of energy?

Nucleic Acid

Protein

Lipid

Carbohydrate

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biomolecule contains fats, oils, and waxes?

Proteins

Nucleic Acid

Lipids

Carbohydrate

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DA#1 Review

Which biomolecule contains pastas and breads?

Which biomolecule helps form body structures like muscles?

Which biomolecule is responsible for insulation and long term energy storage?

Which biomolecule includes sugars, cellulose and starch?

Which biomolecule is made of the monomer amino acids?

Which biomolecule is your main source of energy?

Which biomolecule contains fats, oils, and waxes?

The monomer of a protein is called...

Many monomers can be linked together to form ______________.

Enzymes are considered to be

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