Showing posts with label Cell Cycle MCQs. Show all posts
Showing posts with label Cell Cycle MCQs. Show all posts

Tuesday, October 4, 2016

Cell Cycle Questions Online Test 5

Cell Cycle Questions Online Test 5
1. What causes the decrease in the amount of cyclin at a specific point in the cell cycle?
  • an increase in production once the restriction point is passed
  • the cascade of increased production once its protein is phosphorylated by Cdk
  • the changing ratio of cytoplasm to genome
  • its destruction by a process initiated by the activity of its complex with a cyclin


2. Which of the following is released by platelets in the vicinity of an injury?
  • PDGF
  • MPF
  • protein kinase
  • cyclin

Friday, September 23, 2016

Cell Cycle MCQs part 4

Cell Cycle MCQs part 4
1. In order for anaphase to begin, which of the following must occur?
  • Chromatids must lose their kinetochores
  • Cohesin must attach the sister chromatids to each other
  • Cohesin must be cleaved enzymatically
  • Kinetochores must attach to the metaphase plate.
2. Why do chromosomes coil during mitosis?
  • to increase their potential energy
  • to allow the chromosomes to move without becoming entangled and breaking
  • to allow the chromosomes to fit within the nuclear envelope
  • to allow the sister chromatids to remain attached

Wednesday, September 7, 2016

Cell Communication And Signalling MCQs Part 1

Cell Communication And Signalling MCQs Part 1
1. Which of the following is the correct order of events in signal transduction?
  • Receptor -> Chemical Signal -> Target Proteins -> Intracellular Proteins ->Cell Response
  • Chemical Signal -> Target Proteins-> Receptor -> Intracellular Proteins ->Cell Response
  • Chemical Signal -> Receptor -> Intracellular Proteins -> Target Proteins -> Cell Response
  • Chemical Signal -> Receptor -> Target Proteins -> Intracellular Proteins -> Cell Response
2. Which of the following types of chemical signals is secreted in the blood and travels long distances to its target.
  • Neurotransmitters
  • Cytokines
  • Hormones
  • Target Proteins
3. Which of the following is a characteristic of a receptor?
  • Speed
  • Specificity
  • Saturation
  • All except a
4. This type of extracellular receptor causes a transporter to open or close to allow particles through once a chemical signal binds.
  • G couple Protein
  • JAK Kinase
  • Tyrosine Kinase
  • Ligand Gated Ion Channel
5. An intracellular portion of this receptor phosphorylates intracellular Proteins.
  • G coupled Protein Receptor
  • Tyrosine Kinase
  • Ligand Gated Ion Channel
  • All of the following
6. Once Adenylyl cyclase is activated it
  • Opens Ca2+ doors on the Sarcoplasmic Reticulum
  • Makes cAMP
  • Phosphorylates intracellular proteins
  • Causes a change in membrane potential
7. IP3 does which of the following?
  • Opens Ca2+ doors on the Sarcoplasmic Reticulum
  • Activates target proteins
  • Both a and b
  • None of the above
8. An insulin receptor is an example a _____________ receptor.
  • Tyrosine Kinase
  • G couple Protein
  • Ligand Gated Ion Channel
  • JAK Kinase
9. Most cytokine receptors are an example a _____________ receptor.
  • Tyrosine Kinase
  • G couple Protein
  • Ligand Gated Ion Channel
  • JAK Kinase
10. Beta adrenergic receptors on cardiac contractile cells are an example a _____________ receptor.
  • Tyrosine Kinase
  • G couple Protein
  • Ligand Gated Ion Channel
  • JAK Kinase
Cell Communication And Signalling MCQs

Score =

Correct answers:


Cell Communication And Signalling MCQs Parts => 1..


Wednesday, July 27, 2016

Cell Cycle MCQs Part 3

Cell Cycle MCQs part 3 *******************
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Cell Cycle MCQs

Wednesday, June 29, 2016

Cell Cycle MCQs part 2

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Cell Cycle MCQs

Cell Cycle MCQs Part 1

Cell Cycle MCQ part 1 *********************
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Cell Cycle MCQs

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