Biology Review

What percentage of water is found in all organisms?

• 25%-75%

• 50% - 75%

• 60% - 80%

• 65%-95%

The "backbone" of all organic compounds is _______.

• carbon

• water

• oxygen

• nitrogen

During _______, water is REMOVED to form a molecule.

• hydrolysis

• photosynthesis

• protein synthesis

• dehydration synthesis

What organic compounds contain C, H, and O where the ratio of H:O is 2:1?

• nucleic acids

• proteins

• lipids

• carbohydrates

Triglycerides, waxes, and steroids are all types of what organic compound?

• nucleic acids

• proteins

• lipids

• carbohydrates

_____ is formed in the liver and stored in the liver and muscle.

• triglycerides

• glycogen

• starch

• amino acids

Proteins are long chains of _______.

• monosaccharides

• fatty acids

• amino acids

• nucleotides

An enzyme is a _____ that acts as a catalyst.

• carbohydrate

• lipid

• protein

• nucleic acid

DNA and RNA are types of?

• carbohydrates

• lipids

• proteins

• nucleic acids

True or False: A prokaryote is a cell that has a nucleus surrounded by a membrane.

• true, yup

• false, nope