Question

1. Which area of the brain is primarily involved in the coordination of complex motor patterns?

   	a.	cerebellum
   	b.	cerebrum
   	c.	brain stem
   	d.	hypothalamus

2. How is most carbon dioxide transported in the blood?

   	a.	as bicarbonate ions (HCO3-) in plasma
   	b.	as dissolved gas in the plasma
   	c.	as carbonic anhydrase in the red blood cell
   	d.	bound to the heme group of hemoglobin

3. Heart rate will increase in the presence of increased _________________.

   	a.	epinepherine
   	b.	low-density lipoproteins
   	c.	platelets
   	d.	immunoglobulins
   	e.	erythropoietin

Answer 1

The correct option is a) Cerebellum

One function of the cerebellum is to coordinate different muscle group that together help in body movements or we can say that cerebellum is that part of brain that is involved in coordination of complex motor patterns.

The correct option is a.

Most of the carbon dioxide in blood is transported as bicarbonate ions(HCO3-) in plasma.

Carbon dioxide can be transported through blood by three methods: as a dissolved gas, bound to haemoglobin as carbaminohaemoglobin but the majority of them is transported as bicarbonate ions dissolved in blood plasma.

- The correct option is a.

Heart rate will increase in the presence of increased epinephrine.

Epinephrine causes constriction of blood vessels thus it increases the heart rate thereby increasing the output of blood and increasing blood pressure.