NEET BIOLOGY

ECOLOGY

EXCRETORY PRODUCTS AND THEIR ELIMINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
While running you breathe faster and harder and your heart rate increases. This illustrates that body systems
A
work together
B
work independently
C
all have the same function
D
have no connection one another
Explanation: 

Detailed explanation-1: -The respiratory system and the muscular system are all used when running. The heart is a muscle that pumps blood through the circulatory system to deliver oxygen and nutrients to tissues.

Detailed explanation-2: -When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a minute (12 litres of air) when you are resting, up to about 40–60 times a minute (100 litres of air) during exercise.

Detailed explanation-3: -As your run progresses, your breaths become more frequent and your heart rate rises. Your muscles now have a greater need for oxygen to facilitate the conversion of carbs or fat into energy, and as the heart and lungs are responsible for delivering this oxygen, they have to work harder.

Detailed explanation-4: -Your blood picks up oxygen as it travels through your lungs and delivers it to the muscles you’re using. As your level of activity increases, your breathing rate increases to bring more air (oxygen) into your lungs so that your lungs can pump more oxygen into your blood and out to your muscles.

There is 1 question to complete.