Unit 2 Review

Proteins are made of monomers called _____________.

• nucleotides

• amino acids

• monosaccharides

• glycerol and fatty acids

The element _____ is found in all of the organic compounds.

• iron

• nitrogen

• oxygen

• carbon

Monosaccharides are monomers of ______________.

• carbohydrates

• lipids

• proteins

• nucleic acids

What type of macromolecule are enzymes?

• carbohydrates

• lipids

• proteins

• nucleic acids

Which macromolecule stores energy, provides insulation, and makes up the cell membrane?

• carbohydrates

• lipids

• proteins

• nucleic acids

Which structures are found in every living cell?

• cell membrane and cytoplasm

• cell wall and nucleus

• chloroplasts and mitochondria

• chloroplasts and cell wall

Which cell structure is selectively permeable and controls what can come into or leave a cell?

• nucleus

• cytoplasm

• nucleus

• cell membrane

Cell organelles that are responsible for digesting food, worn out organelles, and other cellular wastes are called ______________.

• mitochondria

• lysosomes

• vacuoles

• chloroplasts

What is one basic function of vacuoles?

• circulating oxygen

• controlling cell processes

• storing water

• producing food

All cells need energy to function. Which cell organelle is responsible for producing energy in the cell?

• mitochondria

• chloroplasts

• nucleus

• vacuoles