Which one of them is a micro-molecule?

Related Mcqs:

1. In Urea cycle __________ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.

   A. 1
   B. 2
   C. 3
   D. 4

2. Chemical substances used on living tissues that inhibit the growth of micro organism are called___________?

   A. Antiseptics
   B. Disinfectants
   C. Antibiotics
   D. Vaccines

3. Which of the following is an example of “molecule”?

   A. Chloroplast
   B. A Nerve Cell
   C. DNA
   D. Hydrogen

4. Chlorophyll is a/an _____ molecule?

   A. Inorganic
   B. Cationic
   C. Anionic
   D. Organic

5. A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called________________?

   A. Monosaccharide
   B. Fatty acid
   C. Neutral lipid
   D. Nucleic acid

6. An insulin molecule consists of _________ polypeptide chains?

   A. 1
   B. 2
   C. 3
   D. 4

7. Which of the following statement about the head of a chlorophyll molecule is incorrect?

   A. It is a porphyrin ring or tetrapyrrole ring structure
   B. It is flat, square and light absorbing
   C. Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen.
   D. It is hydrophobic

8. The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as___________?

   A. Hydrophilic
   B. Hydrophobic
   C. Both of these
   D. None of these

9. Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.

   A. Binding sites of actin get attached to the myosin head.
   B. Troponin uncovers the actin binding sites.
   C. Tropomyosin gets removed from the binding sites of actin filaments.
   D. Ca2+ goes back inside sarcoplasmic reticulum.

10. In fermentation …………. ATP produce per glucose molecule :

    A. 2
    B. 4
    C. 6
    D. 36

    Submitted by: Ameer Hamza