cell structure and cell cycle

Question 1

plasma membrane

Answer 1

controls the movement of substances into and out of the cell

Question 2

microvilli

Answer 2

folds of the plasma membrane that increase the surface area of the cell to increase absorption or secretion

Question 3

the nucleus contains

Answer 3

DNA molecules and nucleolus

Question 4

chromatin

Answer 4

long thin strands within nucleus

Question 5

assembly site for ribosomes

Answer 5

nucleolus

Question 6

area of the cell between the plasma membrane and the nucleus

Answer 6

cytoplasm

Question 7

fluid portion of cytoplasm

Answer 7

cytosol

Question 8

makes atp via aerobic cellular respiration

Answer 8

mitochondria

Question 10

site of protein synthesis in cytosol and RER

Answer 10

ribosomes

Question 11

Rough ER synthesizes

Answer 11

proteins and phospholipids

Question 12

fatty acid and steroid synthesis

Answer 12

smooth ER

Question 13

receives and modifies protein from RER

Answer 13

Golgi complex

Question 14

secrete substances outside the cell

Answer 14

secrete vesicles

Question 15

enzymes digest and recycles worn-out organelles and substances entering the cell

Answer 15

lysosomes

Question 16

peroxisomes produce

Answer 16

hydrogen peroxide

Question 17

cytoskeleton

Answer 17

maintain cell shape and be involved in cell movement and movement in organelles

Question 18

needed to form cilia and flagella

Answer 18

centrosomes

Question 18

cilia

Answer 18

hairlike, cell projections that move fluids and particles along the cell surface

Question 19

flagella

Answer 19

long cell projection

Question 20

when does somatic cell division occur?

Answer 20

when one cell divides to produce 2 genetically identical cells

Question 21

why is cell division needed for

Answer 21

growth of the individual, wound healing, and replacement of old and dying cell

Question 22

a period during which a cell grows and divides into 2 genetically identical cells

Answer 22

cell cycle

Question 23

phases of the cell cycle

Answer 23

interphase, prophase, metaphase, anaphase, telophase

Question 24

a long period during which the cell conducts its normal activity, grows, and prepares for cell division

Answer 24

interphase

Question 25

mitotic phase

Answer 25

when the cell is dividing

Question 26

blastula

Answer 26

an early embryonic stage in which cells are dividing rapidly

Question 26

mitosis

Answer 26

nuclear division

Question 27

prophase

Answer 27

nucleolus and nuclear membrane disappear

Question 28

metaphase

Answer 28

chromosomes line up at metaphasal plate

Question 29

chromatids of chromosomes separate

Answer 29

anaphase

Question 30

telophase

Answer 30

cell recerses prophase activites

Question 31

cytokinesis

Answer 31

cytoplasmic division into 2 genetically identical daughter cells

Question 32

s phase lasts up to

Answer 32

8 hours

Question 32

what happens in s phase

Answer 32

dna is replicated

Question 33

G2 phase lasts up to

Answer 33

4-6 hours

Question 34

G 2 phase

Answer 34

cell growth continues

Question 35

The G1 phase lasts up to

Answer 35

8-10 hours

Question 36

g=G1 ohase

Answer 36

cell metabolically active