What is absorption? The digested food molecules enter the circulatory system.

What food substances are absorbed by Z? Lipid soluble substances: fatty acid, glycerol, vitamin A, D, E, K Z

Blood in Y will first transport to….through…… liver; hepatic portal vein Y

Stomach Digestive juice Gastric juice

What is X? Villus X

Physical digestion function Increase surface area of food for digestive enzyme to act on

What is L? Pancreas

Mouth Digestive juice Saliva

What is egestion? The undigested materials are removed from the body as faeces.

Saliva contain Salivary amylase, water

What is E? Ileum

Digestion of protein starts at K

What is the fluid inside Z? Lymph Z

Chemical digestion by Digestive enzymes

Mouth Physical digestion by Chewing of teeth

Bile Physical digestion by Emulsify fat to oil droplet to increase surface area for lipase to act on

Villus number Large number to increase surface area

Liver Digestive juice Bile

Small intestine Digestive juice Intestinal juice

Small intestine is long because It can provide more time to digest and absorb food substances.

Saliva Secreted by Salivary gland

Bile contain Bile salt, hydrogencarbonate salt, bile pigment

Pancreatic juice contain Amylase, protease, lipase, Hydrogencarbonate salt

Gastric juice contain Protease, hydrochloric acid

What is Z? Lacteal Z

Intestinal juice contain Carbohydrase, protease

Lipase Can be found in Pancreatic juice

Which part absorbs the largest amount of nutrient? E

Amylase Can be found in Saliva, pancreatic juice

Food move in alimentary canal by peristalsis

Which part is acidic? stomach

Villus shape Finger like to increase surface area for absorption

What is Y? Blood capillaries Y

What is ingestion? Food is taken in through the mouth.

What is digestion? Food is broken down into soluble and simple molecules.

What is assimilation? The absorbed food molecules are taken up by cells for metabolism.

What is N? Rectum

Bile Secreted by Liver

Stomach Physical digestion by Churning of muscle

State two features of X that allow it to absorb food substances easily. X is finger like to increase surface area to absorb food. There are lots of X in small intestine to increase surface area to absorb food. X

Which part stores faeces? N

What food substances are absorbed by Y? Water soluble substances: glucose, amino acid, vitamin C, minerals, water Y

What is B? Gall bladder

Intestinal juice Secreted by Intestinal gland in small intestine

Gastric juice Secreted by Gastric gland in stomach

Pancreas Digestive juice Pancreatic juice

Secreted by Pancreas

Stomach Is protected by mucus

What part is acidic? K

Which part of our body can villi be found? ileum

3 examples of physical digestion are Churning of muscle in stomach Chewing by teeth in mouth Emulsification by bile salt in duodenum