Question

1. Which of the following descriptions is NOT correct regarding prokaryotic cells, also known as bacteria:

1. Single celled organisms                            c. Possess cellular organelles
2. Possess a cellular membrane                   d. Reproduce largely by mitosis
   
3. 2. A chemical bond that relies on its ions relative charge to attract each other is known as a:
4. onic Bond                                                               c. Hydrogen Bond
5. Covalent Bond                                                        d. Molecular Bond
7. 3. Which of the following is an important aspect of human biological homeostasis:
8. Oxygen exchange                                   d. Internal body temperature
9. Hydration status                                     e. Acid/Base Balance (pH)
10. All of the above (A, B, D, E)                  f. None of the above (A, B, D, E)
12. 4. The periodic table of elements, organizes all known distinct chemical elements by what major biochemical factor?
13. Atomic Mass                                             c. Atomic Weight
14. Atomic Number                                        d. Atomic Charge

Answer 1

1-d- in a Prokaryotes absence of nucleus is there so mitosis requires different phases of chromosome condensation ( prophase- metaphase- telophase- cytokinesis) which will not afford in prokaryotes.

2-a- ionic bond is characterized by attraction of various charged ion in a compound.

3-c- all of the above is correct for maintaining the cellular function and homeostasis in our body to maintain body oxygen level for cellular activity of energy deriving in ETS , for enzymes activity body temperature is regulated well, cell require particular hydration status to maintain physiology, Acid base balance is also a factor to maintain vital organ functioning.

4-d- Atomic charge is a major biochemical factor to organise periodic table of elements because in our body different proteins and DNA ,RNA

Superoxides having some charge and function and interaction is based on charge.

e.g. for Nucleosome organisation in Eukayotes is basically charge dependent.