Week 2 - Exam 1

Question 1

histo

Answer 1

tissue

Question 2

logos/logy

Answer 2

study of

Question 3

human body has how many cells

Answer 3

90 trillion

Question 4

cell components:

Answer 4

membrane, nucleus, ER, Golgi apparatus, mitochondria, lysosomes, cytoskeleton

Question 5

phospholipid bilayer structure

Answer 5

hydrophilic head, hydrophobic tail; makes up the membrane

Question 6

functions of cell membranes

Answer 6

encloses cytoplasm, separates from extracellular space, allows for selective permeability, cellular recognition (i.e.: organ transplant)

Question 7

components of a nucleus

Answer 7

chromosomes, nucleolus, nuclear envelope, nuclear pores, chromatin

Question 8

functions of a nucleus

Answer 8

controls cell activity, mitosis (replication via division)

Question 9

smooth endoplasmic reticulum

Answer 9

no ribosomes, synthesis of glycogen and lipids

Question 10

rough endoplasmic reticulum

Answer 10

ribosomes present, synthesis of proteins i.e.: enzymes

Question 11

Golgi apparatus function

Answer 11

replaces cell membrane, packaging of cell products to extracellular space, “bubbling”

Question 12

lysosomes function

Answer 12

contain enzymes, digestion, metabolism

Question 13

mitochondria function

Answer 13

produce energy via Kreb cycle

Question 14

cytoskeleton function

Answer 14

keeps structures in place, allows for mobility, “spider web”, “scaffolding”

Question 15

simple squamous

Answer 15

flat, “scales of fish”

Question 16

simple cuboidal

Answer 16

boxes

Question 17

simple columnar

Answer 17

elongated

Question 18

stratified squamous

Answer 18

starts flat, then goes cuboidal

Question 19

stratified columnar

Answer 19

starts columnar, goes cuboidal

Question 20

pseudostratified columnar

Answer 20

pyramids

Question 21

transitional

Answer 21

mix of all

Question 22

hyaline cartilage

Answer 22

bone/joint, composed of chondrocytes (cartilage cells)

Question 23

matrix composed of

Answer 23

collagen, chondrocytes, and growth factors

Question 24

matrix fibers

Answer 24

amorphous ground substance, collagen, glycosaminoglycans (PSGAG- gives springiness), hyaluronic acid (long chain sugar)

Question 25

microtome

Answer 25

machine used to prepare histological samples and slides