Chapter 3: Cell Structure and Function

Which of the following led to the discovery of cells?

• electricity

• computers

• microscopes

• calculators

Which of the following is part of the cell theory?

• all livnig things ar emakde o fone cell

• cells are the basic units of structure and function in organisms

• most cells arise from existing cells

• cells are nonliving units that makeup organisms

TO function most efficiently, a cell's size must be

• large

• small

• any size

• medium

Which of the following statements about prokaryotes is correct?

• they have a nucleus

• their evolution preceded that of eukaryotes

• the organelles in their cytoplasm are surrounded by membranes

• they are multicellular organisms

Only eukaryotic cells have

• DNA

• membrane-bound organelles

• ribosomes

• cytoplasm

Refer to the illustration above. Which structure immediately identifies this cell as a eukaryote?

• structure 1

• structure 2

• structure 3

• structure 4

Refer to the illustration above. In eukaryotic cells, DNA is found in

• structure 1

• structure 2

• structure 3

• structure 5

Microfilaments, microtubules, and intermediate fibers are three kids of cytoskeleton

• protein fibers

• membranes

• organelles

• DNA

cell : cell membrane : :

• nucleus : DNA

• nucleus : nuclear envelope

• organelle : cell

• cell : DNA

In a cell, proteins are made on the

• mitochondria

• ribosomes

• nucleus

• cell membrane