Exam 1

Question 1

ID tags on cells

Answer 1

glycolalyx

Question 2

4 common elements in biology

Answer 2

C H N O

Question 3

anatomical position (3)

Answer 3

body erect
feet slightly apart
palms facing forward

Question 4

nervous system is protected by the ___ cavity

Answer 4

dorsal

Question 5

from the receptor to the CNS is the ___ pathway

Answer 5

afferent

Question 6

what is homeostasis? which 2 systems is it regulated by?

Answer 6

maintaining a relatively stable environment

nervous & endocrine

Question 7

hierarchy of cells (5)

Answer 7

atoms > molec > cell > tissue > organ

Question 8

carbohydrates are stored in liver and muscle as

Answer 8

glycogen

Question 9

organic compounds contain ___ except ___ and ___ which are inorganic

Answer 9

C

CO and CO2 inorganic

Question 10

what is an amino acid chain called?

Answer 10

poypeptide

Question 11

RNA structure

Answer 11

ribose + phosphate + uracil

Question 12

unsaturated fats have few ___

Answer 12

H atoms

Question 13

RBC does not have a

Answer 13

nucleus

Question 14

covalent v hydrogen bodn

Answer 14

covalent = sharing of e

hydrogen bonds = attractive force between electropositive H and electronegative atom of another molecule

Question 15

major extracellular cation

Answer 15

Na

Question 16

dehydration synthesis is catabolism/anabolism

Answer 16

anabolism

Question 17

glycogen = ___ + ___

Answer 17

glucose & galactose

Question 18

true or false

epithelial tissue is avascular

Answer 18

true

Question 19

hydrostatic pressure vs osmotic pressure

Answer 19

hydrostatic = push water out

osmotic pressure = sucks water towards itself

Question 20

3 fates of vesicles

Answer 20

• repair cell membrane
• exocytosis
• phagolysosome formation

Question 21

organ definition

Answer 21

2 or more tissues forming a specific function

Question 22

plasma membrane is never permeable to (3)

Answer 22

proteins, large molecules, polar/water souble molecules

Question 23

RBC placed in a hypotonic solution will

Answer 23

burst

Question 24

diffusion is the movement of molecules from ___ to ___ concentration

Answer 24

hi to low

Question 25

___ in cell membrane keeps it fluid at room temperature

Answer 25

cholesterol

Question 26

active transport involves ___ which involves the use of ___

Answer 26

move against concentration gradient which involves the use of ATP

Question 27

rate of diffusion depends on (3)

Answer 27

size of particle, gradient difference, SA of membrane

Question 28

Na/K pump is an example of ___ transport

Answer 28

active

Question 29

in heart and blood vessels, the simple squamous epithelium is called the ___

Answer 29

endothelium

Question 30

fingerlike projections that increase SA

Answer 30

microvilli

Question 31

___ membranes lines cavities open to the outside body

Answer 31

mucous

Question 32

this disease is characterized by a lack of lysosomes

Answer 32

tay sachs disease

Question 33

function of SER (2)

Answer 33

-protein synthesis & store Ca

Question 34

ionic vs covalent bonds

Answer 34

ionic = complete transfer of e
covalent = sharing of e

Question 35

bruises in the abdominal area results because

Answer 35

there are no bones

Question 36

has its own DNA

Answer 36

mitochondria

Question 37

the mediastinum contains (3)

Answer 37

blood vessel, heart, trachea