Biology Exam

A water strider can skate along the top of a pond because of:

• cohesion

• neutralization

• adhesion

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

A pH level of 7 indicates

• acid

• base

• neutral

• none of the following

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

Fats, oils and cholesterol are all types of what?

• cell membranes
• hormones
  hormones
• lipids
• fatty acids

RNA and DNA are which type of macromolecules?

• carbohydrate
• lipid
• nucleic acid
• protein

Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?

• protein
• carbohydrate
• nucleic acid
•  lipid

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

Tags

NGSS.HS-LS1-6

The element _______is found in all of the organic compounds.

• Iron
• Nitrogen
• Carbon
• Oxygen

Tags

NGSS.HS-LS1-6