Applied biology

      How is the secondary structure of a protein stabilized?

 

• a) Van der wall forces
  

• b) Hydrogen bonding
  

• c) Covalent bond
  

• d) Hydrophobic bond

1.      Identify the purine base of nucleic acids in the following

• a) Cytosine

• b) Thymine

• c) Uracil

• d) Adenine

Which of the following statements is true about metabolism

• a) It only involves the processes that build up the large molecules in the body

• b) It only involves the processes that break down the small molecules in the body

• c) It only involves the processes that break down the large molecules in the body.

• d) It involves all of the processes that break down and build up molecules in the body.

A tripeptide has (a)         amino acids and----- peptide bond     

A virus is made up of _______.           

• (a) Protein coat and nucleic acid

• (b) Protein coat and mitochondria

• (c) Nucleic acid and cell membrane

• (d) Nucleic acid, cell wall and cell membrane

Which of the following statements are true about a virion?        

• (a) Lytic phage

• (b) Lysogenic phage

• (c) The viral capsid

• (d) An infectious and fully formed viral particle

Which of the following systems protects our body against disease-causing microbes?

                                                                                                                   

• (a) Immune system                                         

• (b) Digestive system

• (c) Excretory system

• (d) Respiratory system

  Identify whether the given statement is ‘True or False’                   

1. An amino acid is an amphoteric molecule.                                 

• a) True
  

• b) False

3. Fatty acids are amphipathic by nature.                                       

• a) True
  

• b) False

6. The purpose of the human immune system is to defend the body against non-self pathogens.                                                                                            

 

• a) True
  

• b) False