Copy and Edit

Biological Molecules

Description

AS Unit F212: Module 1
clidna
Quiz by clidna, updated more than 1 year ago
clidna
Created by clidna over 10 years ago
138
3
0

Resource summary

Question 1

Question
Which part of an amino acid differs to introduce variation?
Answer
  • Amino Group (NH2)
  • Acid Group (COOH)
  • R Group

Question 2

Question
Reactions that break down molecules are called?
Answer
  • Catabolic reactions
  • Anabolic reaction

Question 3

Question
Enzymes that catalyse the breakage of peptide bonds are called?
Answer
  • Diastases
  • Lactases
  • Proteases

Question 4

Question
A peptide (covalent) bond forms between which parts of amino acids?
Answer
  • An acid group and an R group
  • An acid group and an amino group
  • An amino group and an R group

Question 5

Question
When amino acids join together it is called?
Answer
  • Synthesis
  • Hydrolysis

Question 6

Question
The name of many amino acids is?
Answer
  • Polypeptide
  • Dipeptide

Question 7

Question
There are 35 naturally occurring amino acids.
Answer
  • True
  • False

Question 8

Question
The specific sequence of amino acids is the?
Answer
  • Primary structure
  • Secondary structure

Question 9

Question
The polypeptide coiling into an alpha-helix or folding into a beta-pleated sheet is caused by?
Answer
  • Ionic bonding
  • Hydrogen bonds
  • Disulfide bridges

Question 10

Question
A disulfide bridge occurs between?
Answer
  • Cystine
  • Gylcine

Question 11

Question
The tertiary structure (proteins) is caused by which bonds?
Answer
  • Hydrophobic and hydrophilic interactions
  • Ionic bonding
  • Disulfide bridges
  • Glycosidic bonds
  • Ester bonds
  • Hydrogen bonding

Question 12

Question
Tertiary bonding forms two structures of proteins?
Answer
  • Pigment
  • Fibrous
  • Globular

Question 13

Question
Globular proteins have which roles within the body?
Answer
  • Metabolic roles
  • Structural roles

Question 14

Question
fibrous proteins usually soluble ?
Answer
  • True
  • False

Question 15

Question
Quaternary structure is?
Answer
  • More than 1 polypeptide subunit joined together
  • Further coiling and folding of a polypeptide

Question 16

Question
How many polypeptide sub-units is haemoglobin made up of?
Answer
  • 6
  • 4
  • 2
  • 3

Question 17

Question
Collagen is a fibrous protein?
Answer
  • True
  • False

Question 18

Question
How many polypeptide chains is collagen made up of?
Answer
  • 4
  • 2
  • 3
  • 6

Question 19

Question
What are the 3 main amino acids making by collagen?
Answer
  • Glycine
  • Cystine
  • Alanine
  • Proline

Question 20

Question
The role of haemoglobin is to
Answer
  • Transport O2 and CO2 around the body
  • Fight infection
  • Aid blood clotting

Question 21

Question
Haemoglobin contains a prosthetic group?
Answer
  • True
  • False

Question 22

Question
Glucose is a
Answer
  • Pentose sugar (5 carbon atoms)
  • Hexose sugar (6 carbon atoms)

Question 23

Question
In alpha glucose the hydrogen is above the hydroxyl on the 1st carbon in the ring.
Answer
  • True
  • False

Question 24

Question
Plants and animals can use beta glucose.
Answer
  • True
  • False

Question 25

Question
Monosaccharides join to form di/polysaccharides by?
Answer
  • Ester bonds
  • Glycosidic bonds
  • Hydrogen bonds
  • Peptide bonds

Question 26

Question
The disaccharide of alpha glucose is?
Answer
  • Maltose
  • Amylose

Question 27

Question
Starch is made of?
Answer
  • Amylose
  • Cellulose
  • Amylopectin
  • Glycogen

Question 28

Question
Structure of amylose?
Answer
  • Unbranched
  • Branched
  • Alpha-glucose
  • Beta-glucose
  • Coiled and compact

Question 29

Question
Structure of amylopectin?
Answer
  • Branched
  • Unbranched
  • Alpha-glucose
  • Beta-glucose

Question 30

Question
Structure of cellulose?
Answer
  • Branched
  • Unbranched
  • Straight chains= fibrils
  • Coiled and compact

Question 31

Question
Starch is made of alpha-glucose and cellulose is made of beta glucose.
Answer
  • True
  • False

Question 32

Question
Starch is made of 1 polysaccharide, cellulose is made of 2.
Answer
  • True
  • False

Question 33

Question
Both starch and cellulose are insoluble and found in plants
Answer
  • True
  • False

Question 34

Question
Starch is for structural support, cellulose is an energy store.
Answer
  • True
  • False

Question 35

Question
Glycogen is the main energy store in animals.
Answer
  • True
  • False

Question 36

Question
Structure of glycogen?
Answer
  • Branched
  • Unbranched
  • Compact
  • Joined by ester bonds
  • Joined by 1,4 glycosidic bonds
  • Alpha-glucose
  • Beta-glucose

Question 37

Question
Why has glycogen a compact and branched structure?
Answer
  • To provide support
  • For storage and breakdown

Question 38

Question
Cellulose forms straight chains linked by hydrogen bonds= microfibrils=macrofibrils for?
Answer
  • Structural support
  • Energy store

Question 39

Question
A triglyceride is made up of?
Answer
  • 1 molecule of glycerol with 4 fatty acids
  • 1 molecule of glycerol with 3 fatty acids
  • 1 molecule of glycerol with 2 fatty acids

Question 40

Question
A Phospholipid is made up of?
Answer
  • 1 molecule of glycerol with 3 fatty acids
  • 1 molecule of glycerol with 3 fatty acids and a phosphate group
  • 1 molecule of glycerol with 2 fatty acids and a phosphate group

Question 41

Question
The phosphate group is?
Answer
  • Hydrophilic (likes water)
  • Hydrophobic (dislikes water)

Question 42

Question
Triglycerides are used as a?
Answer
  • Molecules to stabilise the cell membrane
  • Energy storage molecule

Question 43

Question
Phospholipids make up the cell membrane bilayer as do not let water-soluble substances pass through due to?
Answer
  • No gaps for substances to pass through
  • Centre is hydrophobic (tails)
  • Outside layer is hydrophobic (heads)

Question 44

Question
Cholesterol stabilises bilayer by?
Answer
  • binding to hydrophobic tails packing them closer together
  • Creating an extra layer outside of the membrane

Question 45

Question
The test for proteins is the?
Answer
  • Biuret test
  • Ethanol emulsion test
  • Iodine test
  • Benedict's test

Question 46

Question
Positive result for starch using iodine solution is?
Answer
  • yellow/brown ----> blue/black
  • yellow/brown ----> purple/blue
  • yellow/brown ----> red/orange

Question 47

Question
The concentration of glucose say be determined by?
Answer
  • Benedict's solution
  • A colorimeter

Question 48

Question
A colorimeter works by?
Answer
  • Measuring the amount of light passing through the sample.
  • Comparing the colour to a defined scale.

Question 49

Question
The more Cu(II)SO4 used up in Benedict's test the more light will be transmitted.
Answer
  • True
  • False

Question 50

Question
Precipitation will be filtered out before using a colorimeter?
Answer
  • True
  • False
Show full summary Hide full summary

Want to create your own Quizzes for free with GoConqr? Learn more.

Similar

Biological Molecules Definitions
siobhan.quirk
Biology AQA 3.1.3 Cells
evie.daines
Biology AQA 3.2.5 Mitosis
evie.daines
Biology AQA 3.1.3 Osmosis and Diffusion
evie.daines
GCSE AQA Biology - Unit 2
James Jolliffe
GCSE Biology AQA
isabellabeaumont
AQA Biology 8.1 structure of DNA
Charlotte Hewson
Biology Unit 2 - DNA, meiosis, mitosis, cell cycle
DauntlessAlpha
Cells And Cell Techniques - Flashcards (AQA AS-Level Biology)
Henry Kitchen
Cell Structure
megan.radcliffe16
Exchange surfaces and breathing
megan.radcliffe16
Browse Library