7 Cells

Why can a chicken egg grow so large?

• It is a single cell

• it has a yolk and shell

• it does not have to take in nutrients

• it grows faster than small cellts

What limits most cells to a very small size?

• the surface area to volume ratio of the cell

• the thickness of the cell membrane

• the amount of cytoplasm in the cell

• the number of surrounding cells

How would you calculate the surface area to volume ration?

• divide the volume by the surface area

• divide the total surface area of the cell by the cell's volume

• multiply the area of each side times the number of sides

• multiply the surface area times the volume

How do eukaryotes compare in size to prokaryotes?

• eukaryotes have more cells

• they are about the same size

• eukaryotes are about 10 times smaller

• eukaryotes are about 10 times larger

What does a eukaryote have that a prokaryote does not?

• one or more cells

• cells with a nucleus

• cells with DNA

• cells with membranes

Which of these words describes humans?

• eukaryote

• prokaryote

• protist

• fungi

A web of proteins in the cytoplasm is known as the

• phospholipid

• cytoskeleton

• cell membrane

• organelle

What is the genetic material contained inside a cell's nucleus?

• protein

• lipids

• DNA

• nucleolis

The function of proteins in a cell is to

• control chemical reactions

• store genetic information

• cover the nucleus

• copy messages from DNA

What is the nucleolus?

• the opposite of the nucleus

• another name for DNA

• a network of fibers in the cytoplasm

• a dark area of the nucleus that stores materials and begins to make ribosomes