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Worksheets2023_S1_Classification of protein
Total questions: 73
Worksheet time: 1hrs 4mins
What common methods used to group proteins?
First calss protein and second class protein
Levels of oragnisation
Structure
composition
function
What we call all the protein that contain all the essential amino acid?
(a)
Where we can find first class protein?
(a) protein
What we call the protein thath lack one or more essential amino acid?
(a)
Where we can find second class protein?
(a) protein
What will the primary structure describes?
_____ of amino acid
number
type
the specific linear sequence
function
solubility
In polypeptide chain, amino acids join together by _____ _____s.
(a)
Does protein in primary chain any function?
yes
no
What is the level of arganisation?
(a) structure
In _____ structure, _____ occurs, forming _____
secondary; coiling; β-pleated sheet
primary; folding; α-helix
primary; coiling; α-helix
secondary; folding; β-pleated sheet
In secondary structure , the coiling or folding of its polypeptide chain dueto formation of hydrogen bonds between _____ _____ _____s.
(a)
Tertiary structure of a protein is formed by the folding and coiling of the secondary structure due to _____ _____ interaction
(a)
The compact three dimensional shape of tertiary structure and quaternatry sturcture is maintained by _____
hydrogen bonds
ionic bonds
disulphide bonds
hydrophobic interactions
van der Waals interactions
Examples of tertiaty structure
hormones
enzymes
haemoglobin
collagen
myoglobin
What is the structure that consists of two or more polypeptide chain?
(a) structure
Examples of quaternary structure
hormones
enzymes
haemoglobin
collagen
myoglobin
How many polypeptide chains are consisted by Haemoglobin?
2
3
4
5
How many polypeptide chains are consisted by Collagen?
2
3
4
5
What we call the protein that the shape is long parallel poly peptide chain?
_____ _____s
(a)
What we call the protein that the shape is coiled and floded into globular shape?
_____ _____s
(a)
What is the function of fibrous protein?
(a) function
What is the function of Globular protein?
(a) function
Examples of fibrous protein
keratin in hair and nail
collagen in bone
tendon
ligament
haemoglobin
Examples of globular protein
keratin in hair and nail
collagen in bone
enzymes
some hormones (insulin)
haemoglobin
Does the fibrous protein dissolve in water?
yes
no
Does the globular protein dissolve in water?
yes
no
What we call the protein that consists fo amino acid only?
(a) protein
What we call the protein that consists fo amino acid and non- protein components?
(a) protein
Example of simple protein
keratin, collagen, antibodies, albumin(白蛋白)
keratin, collagen, glycoprotein, nucleoprotein
haemoglobin, myoglobin, antibodies, albumin(白蛋白)
haemoglobin, myoglobin, glycoprotein, nucleoprotein
Example of conjugated protein
keratin, collagen, antibodies, albumin(白蛋白)
keratin, collagen, glycoprotein, nucleoprotein
haemoglobin, myoglobin, antibodies, albumin(白蛋白)
haemoglobin, myoglobin, glycoprotein, nucleoprotein
What is the prosthetic group of Myoglobin?
(a) (contain Fe2+)
What is the prosthetic group of Haemoglobin?
(a) (contain Fe2+)
What is the prosthetic group of Glycoprotein?
(a)
What is the prosthetic group of Nucleoprotein?
(a)
Where the Myoglobin locate?
muscles
red blood cells
cell membrane
chromosomes (protein + DNA)
ribosomes (protein + rRNA)
Where the Haemoglobin locate?
muscles
red blood cells
cell membrane
chromosomes (protein + DNA)
ribosomes (protein + rRNA)
Where the Glycoprotein locate?
muscles
red blood cells
cell membrane
chromosomes (protein + DNA)
ribosomes (protein + rRNA)
Where the Nucleoprotein locate?
muscles
red blood cells
cell membrane
chromosomes (protein + DNA)
ribosomes (protein + rRNA)
What is the protein that function is
selective acceleration of chemical reactions?
(a) protein
What is the protein that function is
protection against diseases?
(a) protein
What is the protein that function is
storage of amino acid?
(a) protein
What is the protein that function is
transport of substances?
(a) protein
What is the protein that function is
coordination of body activities of an organism?
(a) protein
What is the protein that function is
response of cell to chemical stimuli?
(a) protein
What is the protein that function is
movement?
(a) and motor protein
What is the protein that function is
provides support?
(a) protein
How many type of protein that classified by it function?
6
7
8
9
Which enzymatic protein
can catalyse the hydrolysis of bonds in food?
_____ _____
(a)
Which denfensive protein
inactivate and help destroy viruses and bacteria?
(a)
Which storage protein
is the main source of amino acids in the egg white for developments of embryo?
(a)
Which transport protein
transport oxygen from the lungs to other parts of the body?
(a)
Which transport protein
transport molecules across cell membranes?
_____ _____
(a)
Which hormonal protein
secreted by the pancreas（胰腺）, cause other tissues to take up glucose, thus regulating blood sugar concentration?
(a)
In receptor protein,
what will be released and detected by the receptor protein?
_____ _____s
(a)
Which contractile and motor protein
are responsible for the contraction of muscles?
(a) and myosin protein
Which contractile and motor protein
are responsible for the contraction of muscles?
actin and (a) protein
What is the example of keratin (structural protein)
hair
horn
feathers
tendon (between bond and muscles)
ligament (between bond and bond)
What is the example of collagen (structural protein)
hair
horn
feathers
tendon (between bond and muscles)
ligament (between bond and bond)
What we call a loss of biological activity in protein?
(a)
What we call a regains activity in protein?
(a)
Can the denaturation of protein reversible?
yes
no
What factors can break the bond in the three-dimensional structure?
heat
strong acids
strong alkalis
your beautiful smile
What will the denaturation of proteins cause?
This will cause the loss of protein (a) s.
What we call the phenomenon when the three-dimensional of protein turn into primary structure?
(a)
What is the colour of Million's reagent?
(a)
What tests we can use to test the presence of protein ?
Million's test
Biuret test
Emulsion test
Sudan III test
Grease spot test
What colour of the soluntion will form when the presence of protein in Million' test?
(a)
What will form to indicate the presence of protein in Biuret test?
(a) precipitate
Give an example of α-helix protein that we can find in hair and nails.
(a)
Give an example of β-pleated sheet protein that we can find in spider web.
(a)
What structure of a protein is formed by the folding and coiling of the secondary structure?
(a) structure
In secondary structure , the coiling or folding of its polypeptide chain dueto formation of _____ _____s between peptide bond regions.
(a)
In _____ structure, _____ occurs, forming _____
primary; coiling; β-pleated sheet
secondary; folding; α-helix
secondary; coiling; α-helix
primary; folding; β-pleated sheet
