Enzymes, Part 2 and Nucleic Acids

Presentation

•

Biology

•

9th - 12th Grade

•

Medium

•

NGSS

HS-PS1-5, HS-LS1-1

Standards-aligned

Nancy Osborne

Used 4+ times

FREE Resource

12 Slides • 12 Questions

Multiple Choice

How do enzymes increase the speed of chemical reactions?

reducing the number of products

reducing the activation energy

increasing the temperature of the cell

increasing the concentration of reactants

Multiple Choice

After the enzyme and substrate bind together and perform the reaction, what does the substrate become?

a substrate

an enzyme

a product

an active site

Multiple Choice

Letter C...

active site

enzymes

substrate

products

Denaturation: the misfolding of a protein when outside its optimal range

Nucleotides: the monomers for nucleic acids

Multiple Choice

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 .

Multiple Choice

Based on the graph, what temperature does this enzyme work best?

15 C

40 C

30 C

50 C

Multiple Choice

What happens when enzymes are heated to a high temperature?

The enzymes die.

The shapes of the enzyme are altered denature

The enzymes' amino acid sequence changes.

The enzymes remain the same

Multiple Choice

Which of the following denatures an enzyme?

High Temperatures

Incorrect pH

Both

Multiple Choice

Enzymes are...

nucleic acids

proteins

lipids

carbohydrates

Multiple Choice

What is the difference between DNA and RNA from the point of view of the nitrogenous bases that are present in their nucleotides?

In DNA, nucleotides can be made up of A, T, C, G. In RNA, nucleotides can also contain A, C or G; however, instead of T, they contain U.

Purine and Pyrimidine

Pyrimidine: Thymine, Cytosine (Urical)

DNA, RNA

Multiple Choice

DNA and RNA are examples of...

proteins

nucleic acids

carbohydrates

lipids

Multiple Choice

What is the monomer of nucleic acids?

Glycerol

Monosaccharides

Amino Acids

Nucleotides

Multiple Choice

What are the components of a nucleotide?

nitrogen base, phosphate group, and pentose sugar

pentose sugar, purine, and pyrimidine

nitrogen base and a phosphate group

DNA, phosphate group, monosaccharide

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