Biology Unit 2a

1. 8inch chamer connects the colon to the anus. Recieves stool from the large intestine. Holds stool til evacuation. (4, 6, 6)
6. Hollow rogan that holds food whilst being mixed with enzymes that break down food. Changed into paste -> small intestine. Strong acid and protease enzymes are produced. (4, 6, 7)
7. Esophagus carries food to stomach. Food then enters the esophagus. Esophagus = muscular tube. Food is pushed through the esophagus + into the stomach by means of a series of contractions called peristalsis. (4, 6, 9)

2. Last part of digestive tract. 2 inch long canal consisting of the pelvic floor muscles + 2 anal sphincters. Muscles that line the pelvis + 2 other muscles called anal sphincters. (4, 6, 4)
3. Yeast is a single-celled organism. Yeast is a microorganism. A yeast cell has a nucleus, cytoplasm and a cell membrane surrounded by a cell wall (5, 5, 5)
4. The vein contains the xylem and the phloem tissue. These supply water and minerals to the cells that need them and the products of photosynthesis. E.G. glucose are carried away to where they are needed (5, 9, 4)
5. Process the blood containing the nutrients absorbed from the small intestine. Bile made in the liver is the body's chemical "factory". It takes raw materials absorbed by the intestine and makes all the various chemicals the body needs to function. (4, 6, 5)
6. The pharynx is the portion of the digestive tract that recieves the food from the mouth. Pharynx is where swallowing takes place. (4, 6, 7)
8. Digestion starts here. Once you start chewing and breaking the food down into pieces small enough to be digested. Produces amylase. (4, 6, 5)
10. Diffusion is the spreading out of particles from an area of high concentration to an area of low concentration. An example of this would be the spreading of oil across the surface of the ocean. (9)

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