Chapter 2 review #3

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

• the oxygen end

• the hydrogen end

• both ends are slightly negative

• neither end is negative

Tags

NGSS.MS-PS1-1

Why is water so good at dissolving so many substances?

• it is polar

• it is less dense as a solid

• cohesion

• adhesion

Paper clips are able to float on water because of ....

• adhesion
• capillary action
• surface tension
• universal solvent

What is the chemical formula for water?

• HO

• 2HO

• H₂O

• HO₂

Tags

NGSS.MS-PS1-1

Lipids are made of... 

• C H O
• C H O N
• C H O N P
• C H O N S

Proteins are made of... 

• C H O
• C H O N
• C H O N P
• C H O N S

Tags

NGSS.HS-LS1-6

Which macromolecule stores energy, insulates us, and makes up the cell membrane?

• lipids
• proteins
• carbohydrates
• nucleic acids

Used for short term (quick) energy.

• carbohydrates
• lipids
• proteins
• nucleic acids

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

Tags

NGSS.MS-LS1-7

In the diagram, what is letter A? 

• product
• substrate
• enzyme-substrate complex
• active site