Term 2 Biology Flashcards
Name the protein that acts as biological catalyst and speeds up chemical reactions
Enzyme
What do you call the process of breaking down food to make nutrient molecules available to the body
Digestion’s
What nutrient molecule is the main source of energy ?
Carbohydrate
What nutrient molecule is used for growth and repair ?
Protein
What nutrient molecule other than carbohydrate is used for energy?
Lipid (fat)
In What form does excess or extra energy stored in the body ?
Lipid (in fat cells)
What material in food is not digested and keeps bowels functioning properly?
Fibre
Define digestion
The breaking down of good to make nutrient molecules available to the body
Define enzyme
A protein that acts as a biological catalyst and speeds up chemical reactions
Define carbohydrate
A nutrient molecule that is the main source of energy
What is fibre
A material that is not digested and keeps the bowels functioning properly
What is protein
A nutrient molecule used for growth and repair
What are all foods made up of ?
Biological molecules
Just different amounts depending on the type of food
More carbohydrate molecules in bread
More protein molecules in chicken
Name the three types of biological molecules in our food?
Carbohydrate
Protein
Lipids
What are the THREE elements in carbohydrates ?
Carbon
Hydrogen
Oxygen
CHO
May be simple glucose of sugars - or complex like starch
What process happens when we digest complex carbohydrates ?
Carbohydrates are the main source of energy
When they are digested the break down into sugars which our bodies used for RESPIRATION
What helps to break down carbohydrates into energy /sugars ?
Enzymes
What are proteins made up of ?
Amino acids
These aminos acids break down protein to new types of new proteins in our modules
Eg muscle protein
What five elements are in protein?
Like carbohydrates, proteins have carbon Hydrogen Oxygen Nitrogen Supper
CHONS
Examples of carbohydrate
Bread Potatoes Pasta Rice Corn Fruit
Examples of food high in protein
Eggs Meat Fish Nuts Cheese Avocado
Name some parts of our body made of protein
Muscles Bones Organs Skin Nails
Apart from water and fats the rest of our body is made of protein
How many amino acids are there ?
There are 20 amino acids that make up all proteins
Two types - 9 essential amino acids and 11 non essential amino acids
Why do more active people need more protein?
To rebuild their muscles after exercise
Do we need supplements a like protein powders to building good muscles?
No you can get enough protein for your muscles from having a balanced diet