biological molecules

Question 1

carbohydrates - what is a group of glucoses called?

Answer 1

glycogen or cellulose

Question 2

carbohydrates- what is 2 or more glucoses join together called?

Answer 2

maltose

Question 3

carbohydrates- what is glycogen?

Answer 3

glycogen is in animals/fungi and it stores glucose

Question 4

carbohydrates- where is glycogen found?

Answer 4

the liver and muscles

Question 5

carbohydrates- what is cellulose?

Answer 5

it is in plants and it builds cell walls

Question 6

carbohydrates- what is an example of a simple sugar.

Answer 6

glucose

Question 7

carbohydrates- starch is insoluble but glycogen and cellulose are?

Answer 7

soluble

Question 8

carbohydrates- what are the elements in carbohydrates?

Answer 8

hydrogen, oxygen,carbon

Question 9

carbohydrates- what are the elements in carbohydrates?

Answer 9

hydrogen, oxygen, carbon

Question 10

lipids- what are the elements in fat?

Answer 10

hydrogen, carbon, oxygen

Question 11

lipids- what are the monomers of lipids called

Answer 11

triglycerides

Question 12

lipids- what are the monomers of triglycerides?

Answer 12

3x fatty acids and 1x glycerol

Question 13

proteins- what are the elements of proteins?

Answer 13

nitrogen, carbon,hydrogen and oxygen

Question 14

proteins- what are the monomers of proteins?

Answer 14

amino acids

Question 15

proteins- how many amino acids are there?

Answer 15

20

Question 16

proteins- one example of a protein

Answer 16

enzyme

Question 17

monomers- what are monomers

Answer 17

things that make up polymers

Question 18

lipids- what is its function?

Answer 18

insulation and storing energy

Question 19

carbohydrates- what is its function?

Answer 19

quick release energy, stores energy

Question 20

proteins- what is its function?

Answer 20

to build blocks of cells

Question 21

carbohydrates- why is glycogen different to starch?

Answer 21

it has more branches and the more branches it has the quicker the energy is released

Question 22

what does emulsion mean?

Answer 22

tiny droplets of fat that are floating in a liquid

Question 23

food tests- what is the test for reducing sugars?

Answer 23

Benedict’s test

Question 24

food tests- what is the tis for reducing sugars?

Answer 24

Benedict’s test

Question 25

food test- what is the test for protein?

Answer 25

biuret test

Question 26

food test- what is the iodine test for?

Answer 26

starch

Question 27

food test- what is the iodine solution test for?

Answer 27

starch

Question 28

food test- what is the ethanol emulsion test for?

Answer 28

fat test

Question 29

food test- what is the colour change for the Benedict's test

Answer 29

Blue to brick red

Question 30

food test- what is the colour change for Biuret test

Answer 30

blue to purple

Question 31

food test- what is the colour change with the iodine solution?

Answer 31

yellow to blackish brown

Question 32

food test- what does the emulsion ethanol test do?

Answer 32

It turns cloudy

Question 33

water- what is water?

Answer 33

the strongest solvent ever

Question 34

water- what are the charges?

Answer 34

negative, positive,positive

Question 35

water- what makes it polar?

Answer 35

the bent shape

Question 36

enzymes- what are they?

Answer 36

proteins

Question 37

enzymes- what are catalysts?

Answer 37

they speed up reactions without using them up

Question 38

enzymes- what are catalysts?

Answer 38

they speed up reactions without using them up and enzymes are catalysts

Question 39

enzymes-how do you know if something is an enzyme

Answer 39

it has ase at the end like lipase or maltase

Question 40

enzymes- what does amylase do and where can you find amylase?

Answer 40

it breaks down starch and food into maltose then into glucose and you can find them in your saliva

Question 41

enzymes- what does denaturing mean?

Answer 41

when an enzyme no longer works because the active site has changed

Question 42

enzymes-what do all enzymes have?

Answer 42

an optimum temperature and an optimum pH

Question 43

enzymes- at low temps what does it mean?

Answer 43

it means low kinetic energy

Question 44

enzymes- once it reaches an optimum level what happens?

Answer 44

it denatures

Question 45

what does pH mean?

Answer 45

potenital hydrogen

Question 46

enzyme- what does the enzyme lock onto?

Answer 46

substrate

Question 47

enzymes- what is the thing that makes the substrate break into product?

Answer 47

active site

Question 48

enzymes- what is it called when polymers break down into monomers?

Answer 48

catalysed

Question 49

enzymes- what is so important about enzymes?

Answer 49

its shape

Question 50

enzymes- what does optimum temperature mean

Answer 50

what they work best at

Question 51

water- it doesn't not dissolve?

Answer 51

non polar substances

Question 52

variables- what does dependent variables mean?

Answer 52

measuring

Question 53

variables- what does independent variables mean?

Answer 53

changes