Focus on Nucleic Acids

Presentation

•

Biology

•

12th Grade

•

Practice Problem

•

Easy

•

NGSS

HS-LS1-1, HS-LS3-1, HS-LS3-2

Standards-aligned

Miranda Klees

Used 1+ times

FREE Resource

33 Slides • 34 Questions

Multiple Choice

Why are nucleic acids considered essential for life?

They store genetic information and direct cellular activities.

They provide energy for muscle contraction.

They help in digestion of food.

They are responsible for oxygen transport in blood.

Hotspot

Which arrow is pointing to the sugar?

Hotspot

Which arrow is pointing to the phosphate?

Labelling

Match the letter to the part.

Drag labels to their correct position on the image

Deoxyribose Sugar

Phosphate

Nitrogen Bases (2)

Hydrogen Bonds

Covalent Bond

Open Ended

Explain the significance of the sugar-phosphate backbone in the structure of DNA and RNA.

Type response here

Multiple Choice

Which of the following correctly describes the difference between AMP, ADP, and ATP?

AMP has one phosphate group, ADP has two, and ATP has three.

AMP has three phosphate groups, ADP has one, and ATP has two.

AMP has two phosphate groups, ADP has three, and ATP has one.

AMP, ADP, and ATP all have the same number of phosphate groups.

Open Ended

Explain how hydrogen bonds contribute to the structure of the DNA double helix.

Type response here

Labelling

Create a doubles stranded DNA sequence by dragging the complementary nucleotide sequence into position.

Drag labels to their correct position on the image

TCC

AUC

CCA

TAG

GGC

Multiple Choice

What macromolecule transforms the rough strain of S. pneumoniae into the smooth strain, making it deadly?

DNA

Protein

RNA

Lipids

Multiple Choice

In the Hershey-Chase experiment, radioactive sulfur (35S) was used to label phage protein. After infection and centrifugation, where was the radioactivity found?

In the liquid, not in the pellet

In the pellet, not in the liquid

Equally in both the pellet and the liquid

Nowhere, it disappeared

Fill in the Blanks

Open Ended

Based on the experiments by Alfred Hershey and Martha Chase, what evidence supported the conclusion that DNA, and not protein, is the genetic material?

Type response here

Multiple Choice

What was the main conclusion of the Hershey-Chase experiment depicted in the image?

Protein is the genetic material

DNA is the genetic material

Both protein and DNA are genetic materials

Neither protein nor DNA is the genetic material

Multiple Select

Based on Chargaff's data, which two bases are present in nearly equal amounts in the DNA of all organisms listed?

Adenine and Cytosine

Thymine and Guanine

Adenine and Thymine

Guanine and Cytosine

Drag and Drop

In a molecule of double-stranded DNA, if you have 20% Adenine present then you would have

% Guanine,

% Cytosine, and

% Thymine present.

Drag these tiles and drop them in the correct blank above

Multiple Choice

What important information about DNA did this image provide?

The black and white pattern implied DNA had positive and negative charges.

The light circle in the center implied DNA strands were not bonded together.

The x-shape immediately suggested DNA had a double-helix structure.

Multiple Choice

Which of the following statements best describes the significance of Watson and Crick's discovery of DNA structure?

It explained the chemical composition of proteins.

It provided a model for how genetic information is stored and transmitted.

It proved that proteins are the genetic material.

It showed that DNA cannot mutate.

Multiple Choice

Which base pairs are held together by three hydrogen bonds in DNA?

Adenine and Thymine

Guanine and Cytosine

Adenine and Uracil

Thymine and Cytosine

Open Ended

Explain the significance of the major and minor grooves in the DNA double helix structure.

Type response here

Fill in the Blanks

Multiple Choice

What is the primary force that stabilizes the stacking of adjacent base pairs in DNA?

Ionic bonds

Van der Waals interactions

Covalent bonds

Disulfide bridges

Fill in the Blanks

Multiple Select

Which of the following statements about the DNA double helix are correct?

The strands are antiparallel.

Base pairs are stabilized by hydrogen bonds.

The backbone is made of sugar and phosphate.

All bases pair with each other randomly.

Multiple Choice

Which nitrogenous base is found in RNA but not in DNA?

Thymine

Uracil

Cytosine

Adenine

Open Ended

Explain the role of hydrogen bonds in the structure of DNA and RNA.

Type response here

Multiple Select

Which of the following are differences between DNA and RNA?

DNA contains ribose sugar, RNA contains deoxyribose sugar

DNA is double stranded, RNA is single stranded

DNA contains uracil, RNA contains thymine

DNA is more stable, RNA mutates more easily

Fill in the Blanks

Open Ended

Describe what happens to DNA during the process of melting (denaturation) and renaturation.

Type response here

Fill in the Blanks

Multiple Choice

Which of the following is a nitrogenous base found only in RNA and not in DNA?

Thymine

Uracil

Cytosine

Adenine

Labelling

label the following parts of the DNA Molecule.

Drag labels to their correct position on the image

sugars

nitrogen bases

Phosphate

Hydrogen Bonds

Nucleotide

Hotspot

Which molecule represents RNA (ribonucleic acid)?

Multiple Choice

If a strand reads:
3' A A A T T T C 5'
The matching strand would read...

5' T T T A A A G 3'

3' T T T A A A G 5'

5' A A A T T T C 3'

3' U U U A A A G 5'

Open Ended

Summarize the main roles of nucleic acids discussed in today's lesson. How do DNA and RNA differ in their functions within the cell?

Type response here

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