Which of the following is a function of a Carbohydrate?

Provides energy for cells through sugars like glucose

The Law of Conservation of Matter states that...

Matter cannot be created or destroyed; it can only change forms

New molecules are created by the body when needed

Molecules are destroyed in a chemical reaction

All matter must stay in its original form

If there are 12 hydrogen atoms present in the reactants of photosynthesis, what does that mean about the products of photosynthesis?

There will be 12 atoms of hydrogen present in the products of photosynthesis.

There will be 6 atoms of hydrogen present in the products of photosynthesis since some get used during the process.

There will be 24 atoms of hydrogen present in the products of photosynthesis since glucose is formed.

All atoms put into a reaction get destroyed during the process, so none will be left.

If carbon dioxide is formed during a chemical reaction, what is true of the inputs of the reaction?

To form carbon dioxide as a product, there must have been at least one carbon atoms and 2 oxygen atoms present in the inputs.

To form carbon dioxide as a product, carbon dioxide must have been a molecule present in the inputs.

To form carbon dioxide as a product, we must start with 2 water molecules.

Carbon dioxide can never be a product of a reaction, it can only be used as an input.

Which of the following is a function of proteins?

Makes up your body; cells, tissues, and organs.

Provides fuel for your body to have energy.

Carries hereditary material that determines traits.

Insulates and protects organisms.

Which of the following is a function of nucleic acid?

Carries hereditary material that determines traits.

Provides fuel for your body to have energy.

Makes up your body; cells, tissues, and organs.

Insulates and protects organisms.

Which of the following is a function of lipids?

Insulates and protects organisms.

Provides fuel for your body to have energy.

Carries hereditary material that determines traits.

Makes up your body; cells, tissues, and organs.

Enzymes are examples of catalysts. What does a catalyst/enzyme do?

Helps to speed up a chemical reaction.

Forms new elements throughout a chemical reaction.

Supplies the reactants for a chemical reaction.

Causes a chemical reaction to require more energy to take place.

What is the difference between a monomer and a polymer?

A polymer is many monomers bonded together to form a larger molecule.

Monomers are larger molecules that form using many polymers.

Polymers are comprised of one atom and monomers contain many atoms.

Polymers are found in lipids, while monomers are only found in proteins.

What is a monosaccharide?

A. Molecule comprised of one sugar.

B. Molecule that makes up proteins.

C. Molecules that is a carbohydrate monomer.

When an enzyme's environment has a pH that is too high, what will happen to it?

It will denature and not function properly.

It will cause the chemical reaction to really speed up.

The enzyme will not be able to bind with multiple substrates.

The high pH will cause the enzyme to perform new functions.

When an enzyme 'denatures', what does that mean?

The shape of the enzyme changes

The enzyme performs more functions

The enzyme can now only work with a co-enzyme

This is when an enzyme if working at its optimum level

How does temperature affect enzyme function?

Too high of temperatures denature the enzyme

Low temperatures speed up the reactions

Enzymes work best and very extreme temperatures

Temperature does not have an affect on enzyme function

Which end of the water molecule has a slightly positive charge?

both ends are slightly positive

As water freezes, it expands and its density decreases.

As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.

As water freezes, air becomes trapped between the hydrogen bonds of water molecules.

As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

Water has a high heat capacity.

Water is polar because...

The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.

The molecule has two poles, at which the it is colder than other regions of the molecule.

The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.

Why can fish survive winters in a pond?

ice is less dense than liquid water so it will be on the top of a lake or pond allowing fish to swim beneath it

water is available in all 3 phases so ice will be on the top of a lake or pond allowing fish to swim beneath it

water is polar so ice will be on the top of a lake or pond allowing fish to swim beneath it

Adhesion so ice will be on the top of a lake or pond allowing fish to swim beneath it

Surface tension is caused by ...

strong cohesion between water molecules

strong adhesion between the water molecules

Why does water move from the roots to the leaves of plants?

Capillary action pulls the water molecules like a chain

Water’s cohesion causes it to “pull” towards the leaves

Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –

made of two different elements.

Unit 3: BioChemistry

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Hard

•

NGSS

MS-PS1-1, HS-PS1-7, HS-LS1-6

+12

Standards-aligned

katie obrien

Used 64+ times

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where do the atoms come from that form new molecules?

New molecules can never be formed.

Atoms come from existing molecules to form new ones.

Atoms are created from the air whenever they are needed.

Molecules are made up of cells, not atoms.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes up a molecule?

Molecules are the smallest unit and make up atoms.

Elements, that form atoms.

Molecules are made up of individual cells.

Atoms, that form elements.

Tags

NGSS.HS-LS1-6

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the reactants of a chemical reaction are Carbon Dioxide and Water, what is true of the products of the reaction?

The products must contain carbon, hydrogen, and oxygen.

The products will contain only carbon since hydrogen and oxygen will be destroyed.

The products will not contain any of the original atoms.

The only product left would be water.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a chemical reaction has 6 nitrogen as part of its inputs, what is true about the amount of nitrogen that would be present in the outputs?

Since a new molecule would be formed, nitrogen will turn into something new, so 0 would be left.

There would be 12 nitrogen present in the outputs due to 2 outputs being formed.

Since a chemical reaction breaks down molecules, only 3 nitrogen atoms would be left due to some being destroyed.

There will 6 nitrogen atoms present in the outputs.

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following make up carbohydrates?

Monosaccharides

Amino acids

Nucleotides

Fatty acids

Tags

NGSS.HS-LS1-6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following are building blocks of proteins?

Simple sugars

Amino acids

Nucleotides

Fatty acids

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following makes up lipids?

Simple sugars

Amino acids

Nucleotides

Fatty acids

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Unit 3: BioChemistry

50 questions

Where do the atoms come from that form new molecules?

What makes up a molecule?

If the reactants of a chemical reaction are Carbon Dioxide and Water, what is true of the products of the reaction?

If a chemical reaction has 6 nitrogen as part of its inputs, what is true about the amount of nitrogen that would be present in the outputs?

Which of the following make up carbohydrates?

Which of the following are building blocks of proteins?

Which of the following makes up lipids?

Which of the following are building blocks of nucleic acids?

Which of the following is a function of a Carbohydrate?

The Law of Conservation of Matter states that...

Access all questions and much more by creating a free account

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Discover more resources for Biology