organisation

Question 1

testing for sugar

Answer 1

benedicts solution a posotive result looks like, once heated the solution will change from blue-green to yellow-red

Question 2

test for starch

Answer 2

idoine posotive test will be when it turns blue-black when starch is present

Question 3

protine test

Answer 3

biurret solution will change from blue to pink-purple

Question 4

lipid test

Answer 4

sudan III the lips when posotive will separate and top layer will turn bright red

Question 5

effect on ph rate of reaction iodine starch test required practicle

Answer 5

1. use the marker pen to lable a test tube with the first value of a ph buffer solution (ph4) and stand it in the test tube rack
2. into each well of the spotting tiles place a drop of iodine
3. using a measuring cylinder measure 2cm3 of amylase and pour into test tube
4. using a syringe measure 1cm3 of buffer solution and pour into the test tube
5. leave this to stand for five minuites and then use the thermomegtger to measure the temp

6.at 2cm3 of starch solution into the test tube

7. after 10 seconds use a pippette to extract some of the amylase starch solution and place one drop into each tile every 10 seconds
8. record how long it takes for starch to be completly digested by amylase by counting th wells tested posotive

Question 6

enzymes

Answer 6

is a biological catalyst enzymes speed up chemical reaction without being chnaged or used up enzymes have an active site in extreeme temp or ph enzyme denature

Question 7

amylase reactant product

Answer 7

sugar(gkucose product
reactant starch

Question 8

protease reactant product

Answer 8

protiene amio acids

Question 9

lipase reactant prodct

Answer 9

lipid glycerol fatty acid

Question 10

bile

Answer 10

is produced in the liver and stored din the gall bladder it is an alkalinesubstance neutralises hydrochloric acid in stomach emulsofy fats smalldroplets larger surface area rate of digestion lipase increased

Question 11

heart

Answer 11

large muscular organ pumps blood carying oxygen or waste products around body

Question 12

capilaries

Answer 12

narrow vessels which form networks to closley supply cells and organisms between vein and artiries once cell thick walls

Question 13

heart lable

Answer 13

imagine it opposite in an image the left is right for us atrium at top ventricle at bottom line with bum at top on right atrium is sinus node

Question 14

right atrium

Answer 14

recieves deoxygenated blood via vena cava pumped down through valves into right ventricle forced through pulmonary atery towards lungs where changes carbon to ocygen . oxygenated blood travels through left atrium bia pulmanoafry vein down left ventricle much thicker so can pump blood arounda=out of heart by aorta

Question 15

plasma

Answer 15

transports different bloodcells around body as well as carbon dioxide nutrients urea and hormones distributesheat through body

Question 16

red blood cells

Answer 16

transport oxygen

Question 17

platlest important

Answer 17

blood clotting factors

Question 18

coronary heart disese

Answer 18

condition resulting from blockages in cornary arteries fatty deposites blocked main symptoms chest pain heart attack or heart failure

Question 19

diet disease

Answer 19

high fat diet higher cholestorol levles which block arteries

Question 20

smoking disease

Answer 20

nicotine carbon monoxide increase risk of heart failure carbon monoxide redces amount of oxygen transported by red blood cells

Question 21

artifical pace makers

Answer 21

surgically implanted into a person if their heart nodes are not functioning properly

Question 22

stress

Answer 22

prologned exposure to stress can lead to high blood pressure

Question 23

xylem

Answer 23

transports water through plangt

Question 24

root hair cell

Answer 24

plants absorb water by osmosis through root hair cell of root absorbed by active transport

Question 25

photosynthesis equation

Answer 25

carbondioxide+water SUNLIGHT=ocygen+glucose

Question 26

begnine tumour

Answer 26

grows slowly within a membrain easily removabke doesnt spread around or grow back can cause damage to organs

Question 27

malignant tumour

Answer 27

cancerous can grow back can spread around body via bloodstreame cells break away acnd cause secondary tumoursd

Question 28

phloem

Answer 28

vessels transport food such as sugar and glucose from photosynthesis around where growth is occuring

Question 29

heart disease treatment statins

Answer 29

drugs usedd to lower cholesterol levfles in blood reducing amount produced in liver

Question 30

heart disease treatment stents

Answer 30

mechanical device which is used to strech narrow or blocked arteries restoring blood flow advantage for patients where drugs dont work

Question 31

heart disease treatment heart transplant

Answer 31

heart fromorgan doner given to you