ZOO505 Grand Quiz by Sir Arslan

ZOO505 · CELL AND MOLECULAR BIOLOGY · MIDTERM MEGA GRAND QUIZ FILE · LION ZOOLOGIST GROUP FOR 2nd SEMESTER

1. Water has tratomic molecule and consists of _ hydrogen and _ oxygen atom.

Answer: 2 and 1

2. _ can formed within RNA structure between the nearby self complementary sequence

Answer: Hairpin loops

Q3. For optimal activity lysosomes maintain a pH of about?

Answer: 5

Q4. Professional phagocytes ?

Answer: Neutrophils

Q5. Serve as the attachment surface for several structure including cell Wal glycolysis cytoskeleton ?

Answer: Plasma membrane

6. If stretch out some human chromosome would be several

Answer: Centimeters

7. Region of endoplasmic reticulum that lack _ are called smooth endoplasmic reticulum.

Answer: Ribosome

8. Pectin and hemicellulose of the cell wall in plants are synthesized in

Answer: Golgi Apparatus

9. In 1838 Mathias Shirleen a German botanist conclude that plants were made up of

Answer: Cells

10. Depending upon species and cell type the carbohydrates of the plasma membrane range between_ and _ percentage by weight.

Answer: Ans. 2-10%

11. DNA replicating during _ phase.

Answer: Ans. Synthesis

12. Power house of cell convert energy into useable from is called

Answer: Ans. Mitochondria

13. _ receive material from rough endoplasmic reticulum and modify them

Answer: Ans. Golgi Apparatus

14. The bacterial chromosome is as long as up to _

Answer: 1mm

15. Protein imported into the matrix of mitochondria are usually taken from _ within seconds or minutes of their release from ribosome

Answer: Ans. Cytosol

16. _ and the colleagues provide clue of structure of DNA

Answer: Ans. Erwin chargraf

17. Each ribonucleotide is composed of three component a nitrogen base phosphoric acid and _.

Answer: Ans. Ribose sugar

18. Glycogen hydrolysis secreting cells have abundant amount of_

Answer: Ans. SER

19. Phagosome usually has size of _ nm.

Answer: Ans. > 250

20. tRNA pair with the _ in such a way that amino acids are joined to growing polypeptide in the correct sequence.

Answer: Ans. mRNA

Q21. Statement incorrect about mitochondria?

Answer: Ans. It is single membranenclosed organelle

22. Golgi Apparatus also lies on the exit route from _.

Answer: Ans. Endoplasmic reticulum

23. Three different RNA synthesis enzyme are known as

Answer: Ans. RNA polymerase

24. Plasma membrane play a critical role in the response of a cell to external stimulus a process known as

Answer: Ans. Single transduction

25. Carbon is _ element.

Answer: Ans. Tetravalent

Q26. In addition cell membrane are involved in a variety of cellular processes _ ?

Answer: Ans. Cell adhesion

27. Lysosomes are membrane enclosed compartment filled with _ enzyme that are used for the controlled intracellular digestion of macromolecules

Answer: Ans. Hydrolytic

Q28. During which relation water molecule is released?

Answer: Ans. Condensation

29. The electro static attraction is an important force in chromatin.

Answer: Ans. Stabilising

30. Water molecule move from membrane by osmosis by pathways called

Answer: Aqua porins

31. A phospholipids molecule travel from one into the other in about

Answer: Ans. One second

32. Study confirm that continued treatment of bacterial DNA with _ increase number of relaxed loops.

Answer: Ans. Nuclease

33. An egg has _ mitochondria .

Answer: Ans. A few hundred thousand