Question

0 0 E S T 1 0 N S What advantage over an aquatie organism does n terrestrial organism have with regard to obtaining oxygen for respiration? 2. What are the different ways in which glucose is oxidised to provide energy in various organisms? 3. How is oxygen and carbon dioxide transported in human beings? How are the lungs designed in human beings to maximise the area for exchange of gases? TRANSPORTATION .1 Transportation in Human Beings​

Answer 1

Answer:

Answer no.1

A terrestrial animal has over an aquatic animal with regard to obtaining oxygen for respiration. It's because the air in the atmosphere contains the maximum amount of oxygen. Oxygen level is high in the atmosphere when compared to oxygen in the water.

Answer no.2

Different ways in which glucose breaks down

Following are the different ways in which the breakdown of glucose takes place

Anaerobic Respiration

The anaerobic respiration process takes place in the absence of oxygen. For example: In yeast during fermentation. In this process, the pyruvate is converted into ethanol and carbon dioxide.

Aerobic Respiration

In aerobic respiration, the breakdown of pyruvate occurs in oxygen to give rise to 3 molecules of carbon dioxide and water. The release of energy in aerobic respiration is much more than anaerobic respiration.

Lack of Oxygen

At times when there is a lack of oxygen in our body, mainly during vigorous activity, in our muscles, pyruvate is converted into lactic acid, which is a 3 carbon molecule compound. The formation of lactic acid in muscles causes cramp.

Answer no.3

Lungs play a major role in the respiratory system. In humans, a pair of lungs are designed in such a way that they are lined by a thin membrane, the smaller tubes called bronchioles a balloon-like structure called alveoli and a network of blood capillaries increase the surface area for the exchange of gases. They are soft spongy and elastic organs enclosed in a thin membranous sac called the pleura.

Answer no.4

The components of the transport system in human beings are the heart, blood, and blood vessels. The function of the heart is to pump oxygenated blood throughout the body and receives deoxygenated blood from the various body parts and sends this impure blood to the lungs for oxygenation. Blood has three main functions: transport, protection, and regulation. Blood transports the following substances: Gases, namely oxygen between the lungs and rest of the body. Nutrients from the digestive tract and storage sites to the rest of the body. The function of blood vessels is to transport blood throughout the body.