Unit 2: Cells

Micro means...

• very large

• very small

• it is a part on a microscope

• it is unrelated to biology

Macro means...

• very large

• very small

• just right

• the part you look through on a microscope

Molecules that have both carbon and hydrogen are called:

• water

• inorganic molecules

• organic molecules

• salt

Venus fly traps break down insects that land on them. Which macromolecule would break down an insect?

• fats

• lipids

• proteins

• water

Which of the following helps with the digestion of food?

• fats

• lipids

• starch

• enzymes

The smallest unit of all living things is known as...

• the macromolecule

• the cell

• the nucleus

• a compound

Which of the following matches the description of a vacuole in a plant cell?

• very small; contains water and waste

• they provide energy for the cell

• they are not in plant cells

• very large; important for plant structure and water storage

Plants often have a shiny coating on their leaves to help prevent water loss. Which substance would be responsible for preventing water loss ?

• amino acids

• nucleic acids

• glycogen

• wax; lipids

Which organelle is specific to animal cells?

• cell wall

• nucleus

• lysosome

• mitochondria

A unicellular, small, simple cell is called...

• eukaryote

• plant cell

• nucleus

• prokaryote