Part1

Question 1

Ribozymes catalyze:

Answer 1

1-RNA splicing
2-RNA cleavage
3-protein synthesis

Question 2

Small ribozymes

Answer 2

1- Hairpin التوكة الكحلا 
2- Hammerhead رأس القادومة 
3- Hepatitis delta virus (HDV)
4- Varkud satellite   فيري قود 
5- glmS Ribozyme قلمس هههههه

Question 3

Large ribozymes

Answer 3

1- Group 1 introns
                                  Both فريق الانتر      
2- Group 2 introns
3- spliceosome 
4- RNase P

Question 4

Enzyme can be:

Answer 4

Group , substrate, stereo ,regio , universal , tissue ,cell , stage specific

Question 5

Regiospecifity

Answer 5

Substrate is attacked at the same site

Question 6

Group specific

Answer 6

E.g

Hexokinase

Question 7

Substrate specific

Answer 7

E.g

Glucokinase ,lactase

Question 8

Stereo specific

Answer 8

D-Glucose kinase

Question 9

Enzyme used As a diagnostic tool for many disease e.g:

Answer 9

(MI) myocardial infarction

Question 10

Proteolysis

Answer 10

Removing a.a segments from active site