Hiff

Some POSSIBLE questions for practice

Scientific Article 2011.

1. Define the term gene (2) 


2.       What is the role of oxygen in aerobic respiration? (3) 


3.       How does a mutation affect the structure of a protein like IGF-1? 
 (4)


4.       Explain how erythropoietin has an affect on cells. (p1 paragraph 
6) (3)


5.       Using the epo receptor as an example, explain the type of control 
that the body uses to maintain the oxygen levels in the blood. 
(page 1, paragraph 6) (4)


6.       How would you produce recombinant bacteria containing the epo gene? 
 (5)


7.       Describe the structure of viruses. (2) 


8.       How are viruses ‘recognised and destroyed by the immune system’? 
(p2, paragraph 4) (7)


9.       Describe the process by which cells ‘pump out the protein’? 
(p3, paragraph 5) 
 (2)

10.     Explain how viruses can be used in gene therapy. (3) 


11.     Explain what would be involved in clinical trials (p4, paragraph 
1)   (6) 


12.     Explain how high blood pressure leads to a heart attack. (p4, 
paragraph 1) 
 (4)

13.     Describe the structure of a muscle fibre. (2) 


14.     What proteins are found in muscle fibres and what is their 
structure? (4) 


15.     IGF-1 exists in 5 forms whose parts are spliced together in 
different ways. How is

this possible?  (page 4 paragraph 3). (3) 


16.     How could IGF-1 be ‘turned on’? (page 4, paragraph 3) (2)


17.     Discuss the ethics of athletes using performing enhancing drugs. (4)
 


18.     How will your body ‘build up antibodies’ against the virus? (page 
5 paragraph 6)  (3) 


19.     Why would using an alternate virus overcome the problem? (p5, 
paragraph 6) 
 (2)

20.     Compare and contrast the methods of action on cells of steroid 
hormones and

protein hormones. (3) 


21.     What reaction is involved in the breakdown of...