Chapter 7 Cells

Question 1

Exocytsis

Answer 1

Transport material outside of cell

Question 2

Endocytosis

Answer 2

Take in material from extracellular environment into cell

Question 3

Name a type of endocytosis

Answer 3

Phagocytosis

Question 4

Define phagocytosis

Answer 4

Engulfs

Question 5

What organelle houses DNA

Answer 5

Nucleus

Question 6

What is the chromatin

Answer 6

DNA

Question 7

Chromosome

Answer 7

condensed chromatin

Question 8

Centromere

Answer 8

clear constricted middle of chromosome

Question 9

Chromatids

Answer 9

Daughter chromosomes (Half of chromosome)

Question 10

Nuclear envelope

Answer 10

surrounds nucleus; similar to cell membrane; double layered

Question 11

Nuclear pores

Answer 11

present on nuclear envelope; acts as avenues of communication between inner nucleoplasm and outer cytoplasm

Question 12

Ribosomes

Answer 12

produced by rRNA in nucleolus

Question 13

Endoplasmic reticulum function

Answer 13

Modify new protein

Question 14

Microfilaments

Answer 14

Delicate, threadlike microscopic structures

Question 15

Microtubules

Answer 15

Slender hollow tubular structures

Question 16

Tonofilaments

Answer 16

Play a role in intercellular unctions

Question 17

Mitosis

Answer 17

tissue growth or regeneration

Question 18

Interphase

Answer 18

DNA is replicated

Question 19

Cell division phases

Answer 19

Prophase
Metaphase
Anaphase
Telophase

Question 20

Tissue fluid

Answer 20

interstitial fluid; medium fro dissolving, mixing, transporting substances

Question 21

Intercellular junctions

Answer 21

mechanical attachments formed between cells or cells and noncellular surfaces

Question 22

Desmosomes

Answer 22

Disc-shaped; acts as “spot weld”
Cell to cell attachment

Question 23

Hemidesmosomes

Answer 23

attachment of cell to an adjacemtn noncellular surface

Question 24

What type of intercellular junction attaches gingival tissue to tooth surface by epithelial attachment

Answer 24

Hemidesmosomes