Unit II Exam Review (Enzymes)

Unit II Exam Review (Enzymes)

9th - 10th Grade

20 Qs

quiz-placeholder

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Unit II Exam Review (Enzymes)

Unit II Exam Review (Enzymes)

Assessment

Quiz

Biology

9th - 10th Grade

Medium

NGSS
MS-PS1-2, HS-PS1-5, HS-PS1-4

+4

Standards-aligned

Created by

Josue Urbina

Used 9+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

William is conducting an experiment in his chemistry class. He observes that during a chemical reaction, one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Chemical reactions are an integral part of technology, of culture, and indeed of life itself. Burning fuels, making glass, pottery, and making cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Question: In chemical reactions, atoms are

rearranged.

created.

neutralized.

destroyed.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Reading Passage:  Enzymes are proteins that do the everyday work within a cell. Their basic function is to speed up the process and efficiency of a reaction without themselves being consumed in the process. Enzymes are responsible for moving large parts of a cell’s internal structure, such as pulling chromosomes apart when a cell divides. Enzymes make the energy molecules that are constantly needed for the cell to survive. And they break down molecules, recycle the old parts and make new molecules that allow the cell to grow.Question: Enzymes affect the reactions in living cells by changing the
speed of the reaction.
products of the reaction.
pH of the reaction.
temperature of the reaction.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Question: The energy needed to get a reaction started is the
chemical energy.
activation energy.
adhesion energy.
cohesion energy.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Question: What is the process that changes one set of chemicals into another set of chemicals?
hydrogen bonding
cohesion
dissolving
chemical reaction

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image
Question: When hydrogen and oxygen combine to form water, water is
an enzyme.
a catalyst.
a reactant.
a product.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Question: A substance that speeds up the rate of a chemical reaction is called
a molecule.
a lipid.
a catalyst.
an element.

Tags

NGSS.HS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image
Question: Consider the energy diagram for a chemical reaction in the Figure. Overall, is energy released or absorbed?
absorbed, because the energy level increases during the reaction
absorbed, because the energy level of the products is greater than that of the reactants
released, because the reaction is initiated by the addition of heat
released because the energy level of the reactants is greater than that of the products

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