Nutrients,Food Tests , Teeth Flashcards
Why do people eat food
We like and enjoy the food we eat . To get nutrients into our body
What does the body do with nutrients found in the body
Provide energy. Provide materials for chemicals that make new cells
Name the different types of food we find in output diets
Minerals
Water
Fiber
Fat
Protein
Carbohydrates
Vitamins
What is the function of protein
To supply nutrients . To used for making new cells . Used to make enzymes and antibodies . Used as a source of energy
Function of carbohydrates
Main source of energy
Function of fat
Reserve source of energy . Helps with thermal insulation
Vitamin C
Good source
Citrus foods
Function in the body
To make skin stronger
Deficiency disease
Scurvy - skin becomes weak so sores develop
Vitamin D
Good source
Diary products
-Function in body
To make bones and teeth stronger
-Deficiency disease
Rickets - bones are weak , so legs bend
Iron
Good source
Dark green veggies
Red meat
Function in body
Needed to make hemoglobin, which carries oxygen
Deficiency
Amanda - blood cannot carry oxygen person feels tired
Calcium
Good source
Diary products,fish
Function in body
Make bones and teeth stronger
Diefincy disease
Bones and teeth become weak
How does the amount of vitamins and minerals we need in our diets compare to the amount of proteins and carbohydrates we need in our diets.
We need carbohydrates and protein in larger amounts. Vitamins and minerals in smaller amounts
What is the function of fibre in the body?
Help food move more easily through the digestive system .
Helps prevent colon cancer
Function of water
60-70% of our body is water. Water helps cool our body down. Water transports waste and nutrients
What is the difference between food and nutrients.
Food - if things we eat and drink that contain nutrients
Nutrients - useful substances we get from food . Supplying our body with nutrients and allowing it to function.
List of foods that provide us with energy
Carbohydrates
Protein
Fat
What happens when a person suffers from a lack of iron in there diet?
Iron is used to make hemoglobin so the person makes less hemoglobin
Hemoglobin s used to carry oxygen so person carries less oxygen
oxygen is used in the respiration to release energy person releases is energy,,
Amenia is a condition where a person suffers from lack of energy
Name the regent used to test for starch
Iodine
What color will be observed when starch is present versuswhen , not present
When present, it will be blue/black
When absent, it will be red/brown
Name the regent used to test for sugar
Benedict solution 
Keep the color change when sugar is present vs absent
When present, it will be orange
when absent, it will be blue
Doing a sugar, test tube is placed in boiling water. Explain why.
Heat is a catalyst that speeds up the rate of a chemical reaction
What is the deposit at the bottom of the test tube called after a reducing sugar test?
Precipitation
What is a pestle and mortar used for
Used two crushed up solid into smaller pieces that can be crushed up into smaller pieces to go through the funnel increasing surface area
What is a diet?
Include the food we eat every day
What is a balanced diet?
Include eating from all the food groups in the right amount every day
What influences balanced diet?
Depends on the age size, how active they are , the gender if ,they are sick or not, occupation level of activity if they’re pregnant or breast-feeding.
What is an alimentary canal? Where does it start and end?
starts with the mouth and ends with the anus, includes cubes in between
Nutrition
Digestion
Absorption
Egestion
Food entering the alimentary canal
Food been broken up into smaller pieces
Small pieces of food going into the bloodstream to be taken to the cells
Food that has not been absorbed, is passed through the end of the digestive system
Name the three types of molecules that cannot be able to because the two big
Protein starch and fat
named the function of the mouth
The teeth chew the food into smaller pieces saliva helps to break down starch into sugar, tongue, helps with swallowing
Salivary glands
Produce and release saliva
Esophagus
Tube carrying food from the mouth to the stomach with peresterals
Liver
Makes bile . Help with fat digestion. Bile helps with digestion
Stomach
Hydrochloric acid kills bacteria. Stomach juices break down protein , fat and starch . Churning movements mix food
Gall bladder
Stores bile. Helps with fat digestion
Pancrease
Pancreatic juice breaks down fat , starch and protein. It helps to control blood sugar levels with hormones, insulates and glucagon
