ch 3 part 2 reviews

Question 1

Glycosidic bond

gly co sid ic

fly co sidic

Answer 1

covalent bond that form between monosacchardie
dehydartion synthesis

Question 2

glycosidic bond example :

Answer 2

link glucose and fructose to create sucrose
between cellulose and chitin subunits

Question 3

the structural material in plant cell

Answer 3

cellulose

Question 4

chitin function :

Answer 4

in animal
form the rigid exoskeleton of insect and crustaceans
have a chain of nitrogen and no bond hydrogen

Question 5

Cellulose is :

Answer 5

in plant
fiber in our diet
polymer of glucose molecules or made uo of chain of many glucose
with different 3d structure
provide strength and rigidity to the plant cell wall by hydrogen bond

Question 6

Lipid :

Answer 6

-nonpolar
-greasy to the touch
-hydrophobic means water hating , dont dissolve in water
-wide range of structure and function
-consist primary of carbon and hydrogen
-include triglyceride(fats and olis ) phospholipids ,waxes , steroid
-can be signifcant sources of energy storage

Question 7

three types of lipids :

Answer 7

fat
sterols
phospholipids

Question 8

sterols function

satir ills

ster ols

Answer 8

regulate growth and development

Question 9

phospholipids

Answer 9

form cellular membarne

Question 10

triglyceride is ______________
consist of two parts like ______________and _______________ and also contain :

Answer 10

-dietary fat
-glycerol’‘head region’’
-fatty acid’‘tail region’’
- fat and oils

Question 11

Saturated vs. Unsaturated Fatty Acids

Answer 11

Saturated fatty acids have hydrocarbon chains connected by single bonds only like solid or meat or cheese or eggs
Unsaturated fatty acids have one or more double bonds
like liquid and Vegetable oils, nuts and fish have mostly unsaturated fats.

Question 12

differance between carb , lipid , protein

Answer 12

Question 13

trans fat is unsaturated fat that have been partially hydrogenated make unsaturated fat ______________at tempreture

Answer 13

solid

Question 14

hydrogenation :

Answer 14

artificial addition of hydrogen to unsaturated to make it saturated

Question 15

cis versus trans

Answer 15

Question 16

sterols

Answer 16

function in regulation and growth of development and membrane fluidity
cholestrol and steroid hormone

Question 17

cholestrol

Answer 17

-important component of cell membrane in animals
-can attach to blood vessel wall and cause them to thicken

Question 18

steroid hormone :

Answer 18

estrogen and testosterone and cortisol and aldosterone
regulate sex cell production , sexuall development
maturation and modified cholestrol molecules

Question 19

estrogen influence_________________

Answer 19

memory and mood

Question 20

testosterone stimulate ___________________

Answer 20

muscle growth

Question 21

plaque contain cholestrol can cause _____________________________________

Answer 21

hardeing of the artery and result in heart attack and stroke risk

Question 22

cells in our body produce almost___________of _______________cholestrol from ________fat in our diet

Answer 22

90% , circulating , saturated

Question 23

Phospholipids

Answer 23

Major component of cell membranes

Question 24

phospholipid Structure :

Answer 24

Glycerol backbone + 2 fatty acid “tails” + a modified phosphate group
and Amphipathic

Question 25

Amphipathic

Answer 25

Has both a hydrophilic and a hydrophobic part

Question 26

Phospholipids Form Cell Membranes :

Answer 26