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Describe the synthesis of ATP in oxidative phosphorylation

Oxidative phosphorylation is a critical component of the cell's metabolic pathway, and is responsible for the generation of most of the cell's ATP. Overall, reducing potential in the form of NADH and FADH...

Answered by Alex G. Biology tutor
2547 Views

Describe the structure of the human gas exchange system and explain how we breath in and out.

The human gas exchange system includes the trachea, the bronchioles and the alveoli. During inhalation (breathing in) the diaphragm contracts and the external intercostal muscles contract. This increases ...

Answered by Hajira I. Biology tutor
21131 Views

What is a reflex arc and why is it important?

A reflex arc is made up of a receptor (which detects a stimulus), a sensory neurone, a relay neurone, a motor neurone and an effector (which brings about a respon...

Answered by Janella B. Biology tutor
3916 Views

Outline an example of a reflex action

Stimulus - receptor - sensory neuron - (dorsal) spinal cord - (ventral) spinal cord - motor neuron - muscle/effector - response

Answered by Tunmise A. Biology tutor
2197 Views

Explain how increased blood CO2 leads to an increased heart rate

The high CO2 rate is detected by chemoreceptors in the aorta. The chemoreceptors send impulses to the medulla in the brain. The medulla then sends impulses along sympathetic neurons to the sinoatrial node...

Answered by Alice V. Biology tutor
8908 Views

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