Diet And Digestion Flashcards
Name 3 foods containing vitamin A
Liver, fish, dairy products, eggs
Name 3 Symptoms of vitamin A deficiency
Dry eyes, night blindness and poor wound healing/weak immune system
What is the name of vitamin C deficiency
Scurvy
What happens when you have vitamin C deficiency
The red blood cells are destructed, eyes can fall out, fingers and legs can fall off (pirates eye patches hook hands and peg legs)
What are symptoms of vitamin D deficiency
Muscle and bone pain, bending of bones
What is the name of vitamin D deficiency
Rickets
What is the name of calcium deficiency
Rickets or osteoporosis
What is the function of calcium
Healthy teeth and bones
What is iron deficiency called
Anaemia
What is the function of iron
Forms the part of red blood cells/haemoglobin that bind to oxygen
State 1 symptom of iron deficiency
Extreme fatigue
What is water used to transport
Water is used to transport blood
Water is essential in temperature regulation in the body
Water is an essential solvent for chemical reactions in the body
Fibre is a plant material that cannot be digested
Fibre is cellulose
Fibre is essential to assist the movement of food through the intestine
amalayse
breaks down starch to maltose
pepsin
breaks down protein to polypeptides
trypsin
breaks down polypeptides to amino acids
lipase
breaks down lipids to gylcerol
maltase
breaks down maltose to glucose
where is amylase found
mouth and small intestine
where is pepsin found
stomach
where is trypsin found
small intestine
where is lipase found
small intestine
where is maltase found
small intestine
name two key properties of bile
neutralises stomach acids and emulsifies fats
why does bile emulsify fats
so that it can be broken down in the small intestine
Name one adaption of a villi
it is covered in microvilli
name adaptions of microvilli
- Only one cell thick, so short diffusion distance
- Maximised surface area for absorbtion
- close blood network
- lacteal absorbs fatty acids and glycerol
