Chapter 4 - Cell Structure and Function

Question 0

All cells come only from ________ cells

Answer 0

Preexisting

Question 1

All organisms are composed of

Answer 1

Cells

Question 2

Cells are the ______ structural and functional unit of organisms.

Answer 2

Smallest

Question 3

Cells need a large surface area of plasma membrane for ..

Answer 3

for exchanging wastes for nutrients through the plasma membrane

Question 4

Prokaryotic ____ a membrane-bound nucleus.

Answer 4

Lack

Question 5

Archaea?

Answer 5

• Live in extreme habitats
• More diverse in shape
  Methanogens
  Halophiles
  Thermoacidophiles

Question 6

Cell envelope includes …

Answer 6

Plasma membrane
Cell wall
Glycocalyx

Question 7

Plasma membrane can form internal pouches called ..

Answer 7

Mesosomes

Question 8

Prokaryotes ____ mitochondria and other eukaryotic organelles

Answer 8

Lack

Question 9

( long ) - provides motility

Answer 9

Flagella

Question 10

Small bristle-like fibers that sprout from the cell surface to help attach to other surfaces.

Answer 10

Fimbriae

Question 11

Rigid, tubular structures used to pass DNA from cell to cell

Answer 11

Conjugation pili

Question 12

They contain a membrane-bounded nucleus that houses the DNA and contain specialized organelles .

Answer 12

Eukaryotic cells

Question 13

Known as the traffic cop?

Answer 13

Plasma membrane

Question 14

Eukaryotic cells contain small structures called _________

Answer 14

Organelles

Question 15

Two classes of organelles :

Answer 15

Endomembrane System & Energy related organelles .

Question 16

Command or control center of cell, usually near center. Also separated from cytoplasm by nuclear envelope.

Answer 16

Nucleus .

Question 17

Produced by the Golgi apparatus?

Answer 17

Lysosomes

Question 18

Membrane-bounded vesicles that enclose enzymes.

Answer 18

Peroxisomes

Question 19

________ reactions that produce hydrogen peroxide.

Answer 19

Catalyze

Question 20

Store materials and support cells ..

Answer 20

Vacuoles

Question 21

Photosynthesis

Ex: autotrophs make their own food

Answer 21

Chloroplasts

Question 22

The “powerhouse” of the cell.

Answer 22

Mitochondria

Question 23

Serves as internal skeleton that maintains cell shape and assists in movement of its parts?

Answer 23

Cytoskeleton.

Question 24

Intercellular traffic control ..

Answer 24

Actin filaments

Question 25

Does plant cells have centrioles?

Answer 25

No.

Question 26

( short ) move in coordinated waves like oars.

Answer 26

Cilia.

Question 27

( long ) move like a propeller or cork screw

Answer 27

Flagella