Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BIOLOGY > food > Flashcards

food Flashcards

study

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

what is a biomolecule?

A

is a cheamical that is made inside a living thing.
carbohydrates
protein
lipids
vitamins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

monosaccarides

A

the simplest sugar molecule
e.g glucose and fructose(fruits)
glucose is the main carbohydrate we obtain eneryg from.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

disaccarides

A

two monosaccarides connected
more energy than monosaccarides due to more bonds
more bonds=more energy
e.g maltlose sucrosae (table sugar) lactose (milk)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

polyscaccharide(starch)

A

many glucose molecules joined together to form a long chain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

where is stach found?
where is starch storage?
whe is the polysaccharide glycogen storge

A

in bread pasta and potatoe
starch is storage form of sugars in plants
form of sugars in animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

cellulose(fiber)
where is it found

A

is a structural carbohydrates
food in vegetables wholemeal bread and bran.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

lipids contain what elements

A

carbon hydrogen and oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the basic unit of a lipid

A

a triglyceride (three fatty acids and one glycerol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the functions of lipids in the body

A

lipids are used as a long term energy store in the body
lipids under the skin insulate the body and prevent heat loss.
lipids provide protection to certain organs
phospholipids are structural lipids and are used to form cell membranes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

phospholipids

A

where one of the fatty acids is replaced by a phosphate group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what are sources of fat in the diet

A

butter suet cream and lard. plants are the main source of oil e.g sunflower and maize.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

phospholipid structure

A

glycerol one fatty acid 1 fatty acid 2
phosphate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

metabolism of cell

A

is the sum of its cheamical reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what are the two types of metabolic reactions

A

anabolic reactions and catabolic reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

anabolism

A

is the building up of large molecules from smaller ones
e.g photosynthesis is an anabolic reaction

carbon dioxide + water- glucose +oxygen

energy(light energy) is used to make up the larger molecule, glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

catabolism

A

is the breaking down of large molecules into smaller ones.
e.g respiration is a catabolic reaction

glucose+oxygen-carbon dioxde + water

energy is released for use by by the cell.

17
Q

what elements are in proteins

A

carbon hydrogen oxygen and nitrogen sometimes contain sulfur

18
Q

cellulose

A

is a structural carbohdrate

19
Q

how many common amino amino acids are there
a protein is a long chain of molecules called amino acids.

A

20

20
Q

what are proteins functions in the body.

A

structural fibrous protein forms keratin in hair and skin and myosin in muscles.

21
Q

what are sources of protein in the diet

A

fish nuts dairy products

22
Q

trace elements

A

iron (fe) copper(Cu) zinc(Zn)

23
Q

main elements in food are

A

carbon (C) hydrogen (H)oxygen (O) nitrogen (N) phosphorus(p) and sulfur(S)

24
Q

mineral elements

A

sodium (Na) magnesium (Mg) chlore(Cl) potassium (K) calcium (Ca)

25
Q

what are the two vitamin groups?

A

water soluble(vitamin C) fat soluble (vitamin D)

26
Q

what are sources of vitamin C

A

fruits such as oranges lemons and limes kiwi fruits potatoes and green vegetables

27
Q

Deficiency of vitamin C

A

scurvy a disease whose sysptoms include bleeding from the gums and very small blood vessels, and slow healing of wounds

28
Q

sources of vitamin D

A

fish liver oil butter margarine egg yolk dairy products

29
Q

deficiency of vitain d in children
and adults

A

children rickets a condition in which the bones lose
adults osteomalacia
a condition in which the bones lose calcium and become weak pianful and liable to fracture easily

30
Q

mineral

A

are chemical element dissolved as salts in food and water

31
Q

minerals chemial elements

A

sodium magnesium chorine potassium calcium iron copper and zn

32
Q

minerals in plant calcium
magnesium

A

absorbed from soil is uesd to form the middle lamella that cements plant cells together

absorbed from soil is essential in forming the green pigment chlorophyll

33
Q

minerals in animals calcium
iron

A

in milk and other dairy products forms strong bones and teeth

in liver meat and green vegetables is used for m haemoglobin

34
Q

haemoglobin

A

a chemical found inred blood cells that is used to carry oxygen

35
Q

water

A

essential for life
excellent solvent
what diffusing into cells gives them their shape
water heats up cools down very slowly this helps to keep the body temperatur constant

BIOLOGY (36 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions