Biology Unit 1 OCR

Healthy: Means not having any illness or disease

Fitness:  how well you can perform physical tasks

BLOOD PRESSURE : Healthy pressure is around 135 over 85

Systolic Pressure- Highest pressure (heart contracts)

Diastolic Pressure-Lowest pressure (heart relaxes)

High Blood Pressure: Caused By:

-TOO much Alchol and Salt ,being overweight, being under lots of stress ,not doing enough exercise

Can Cause:-Strokes,Brain Damage,kidney Damage

Low Blood Pressurecan cause:Bad Circulation >Tissues don't get oxygen needed-->dizzyness and Fainting

IT'S NOT breathing IN and OUT...

Respiration is the process of releasing Energy from Glucose, which happens constantly in EVERY CELL. 

There are two types--> Aerobic Respiration (Using Oxygen) and Anaerobic Respiration (not using oxygen)

Aerobic Respiration :Is the most efficient way of releasing energy from Glucose:

Glucose + Oxygen --> Carbon Dioxide and Water (+energy)

C6H12O6 +6O2    -->  6CO2       + 6H2O (+energy)

Anaerobic Respiration - This creates Lactic acid which can be painful.

Glucose --> Lactic Acid (+energy)

This also builds up oxygen debt so people have to breathe heavily when they stop exercising/ get oxygen

Balanced Diet: SIX essential nutrients

-Carbohydrates- made of simple sugars

-Fat

-Protein

-Vitamins 

-Minerals

-Water