Question

Hemopoiesis is the

• loss of blood due to hemorrhaging.

• production of only red blood cells.

• production of white blood cells, red blood cells, and platelets.

• plugging of broken vessels to stop bleeding.

• migration of white blood cells from the blood out to the tissues.

Sputum is obtained by

• swabbing the mouth to sample saliva.

• a clean catch urine sample.

• the patient coughing up mucus from the lower respiratory system.

• a spinal tap above the chest.

• a throat swab.

Carbon dioxide (CO₂) is

• removed from the atmosphere during photosynthesis.

• a source of carbon.

• returned to the atmosphere during respiration and fermentation.

• used by marine organisms to make limestone for their hard shells.

• All of these choices are correct.

The conversion of gaseous nitrogen (N₂) to the ammonium ion (NH₄⁺) occurs during

• ammonification.

• nitrogen fixation.

• photosynthesis.

• nitrification.

• denitrification.

Answer 1

1. Answer; production of white blood cells, red blood cells and plasma.

Reason ; The term haemopoiesis refers not only production of the red blood cells but also all the major type of cells which of found in the blood circulation. Therefore the above mentioned option would be the appropriate one and the other option are not relevant.

2. Answer; the patient coughing up mucus from the lower respiratory system.

Reason ; During this procedure of that test the client is asked to cough and spit out the mucus from the internal respiratory tract, it should not be collected from the saliva or urine or from the throat. Therefore the above mentioned option would be the appropriate one

3. Answer; all of the choices are correct.

Reason ; All the listed statement regarding the carbon dioxide is true and it is factual to the environment function. Therefore the above mentioned option would be the appropriate one.

4. Answer; nitrogen fixation