biology PPE improvment flashcards

Question 1

what do smooth endoplasmic reticulum do

Answer 1

produce/package/modify transport/lipids

Question 2

what is the bond between glycerol and fatty acids

Answer 2

ester bonds

Question 3

2 diffrences between triglyceride and a phospholipid

Answer 3

1. 3 fatty acids rather than 2;
2. 3 ester bonds rather than 2;
3. No phosphate group;

Question 4

what dose saturated and unstaurated mean

Answer 4

A saturated solution is a solution that contains the maximum amount of solute that is capable of dissolving. An unsaturated solution is a solution that contains less than the maximum amount of solute that is capable of being dissolved

Question 5

why can fatty acids perform a bi layer

Answer 5

• hydrophobic and hydrophilic attracts water to each side of the bi layer

Question 6

what is the R group of the fatty acid

Answer 6

the straight chain of carbon atoms.

Question 7

what increases the fluidity of a membrane

Answer 7

unsaturated fatty acids

unsaturated fatty acids have bend and kinks in there tails which push phospholipids away

Question 8

factor to be kept the same with a crushed subtance

Answer 8

-the crushing method.
-age and source of the substance
-temprature of the sustance
-mixing/ stiring of the substance

Question 9

what do phospholipids do in ethanol

Answer 9

dissolve

Question 10

primary structure of amino acids

Answer 10

sequence of amino acids joined by peptide bonds

Question 11

what is universal

Answer 11

same codon triplets always code for the same amino acids

Question 12

non overlapping

Answer 12

each base is only part of one triple/ codon

Question 13

degenerate

Answer 13

more than 1 codon triplet codes for amino acids