Which of the Following Organelles Is Responsible for Modifying and Packaging Proteins Into Vesicles - Medical Science Assignment Help

Assignment Task

Introduction to the Human Body and Cells

1. Which of the following organelles is responsible for modifying and packaging proteins into vesicles: 
Nucleus 
Mitochondria 
Ribosome 
Golgi complex 
Smooth Endoplasmic reticulum

2. Which of the following modes of transport is used by sodium ions to enter the cell: 
Simple diffusion 
Channel mediated facilitated diffusion 
Primary active transport 
Concentration gradient  
Osmosis

3. Which of the follow is occurring during the repolarisation phase of an action potential: 
Voltage-gated sodium ion channels are open 
Sodium ions are rapidly entering the cell 
Voltage-gated potassium ion channels are closing 
Ligand-gated channels on the axon are open 
Potassium ions are rapidly exiting the cell 

4. Elevated levels of thyroid hormones T3 and T4 would result in: 
Decreased basal metabolic rate 
Decreased body temperature 
A positive feedback loop to restore thyroid hormone levels to normal 
Decreased TSH secretion 
Weight gain 

5. During muscle contraction, which of the following is true of Calcium (Ca2+) ions: 
a. Acetylcholine directly stimulates the movement of extracellular Ca2+ into the cytosol 
b. Ca2+ ions are actively pumped out of the cell to allow for muscle fibre relaxation 
c. Myosin is only active when directly bound by Ca2+ ions 
d. Ca2+ is released from the sarcoplasmic reticulum through voltage-gated ion channels 

6. Which of the following are likely to occur during the post absorptive state: 
a. Increased levels of insulin 
b. ATP synthesis from fatty acids 
c. Glycogenesis 
d. Gluconeogenesis 

7. A patient with type B blood can receive a transfusion from donors with: 
a. type B blood 
b.  type AB blood 
c.  type O blood 
d. No blood types are compatible

8. Capillary exchange of fluid from the blood vessel into the tissue occurs: 
a. When the blood hydrostatic pressure is greater than the blood colloid osmotic pressure 
b. When the blood colloid osmotic pressure forces fluid out of the vessel 
c. At the arterial side of the capillary bed 
d. By active pumping of the fluid across the vessel wall 

9. Which of the following factors are components of innate immunity:  
a. Helper T cells   
b. Inflammation 
c.  B cells  
d. Natural killer cells 

10. How is CO2 transported in the blood:  
a. dissolved in the plasma  
b. bound to the globin portion of haemoglobin  
c. as bicarbonate ions  
d. bound to the haem portion of haemoglobin

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