B2-Digestive System 0.0 / 5 ? ScienceBiologyGCSEAQA Created by: Wynnie24Created on: 18-03-19 18:03 What does the pancreas do? The pancreas is is an organ that makes and releases digestive juices containing enzymes to break down your food 1 of 17 What does the stomach do? The stomach is the organ where food is churned with digestive juices and acids 2 of 17 What does the small intestine do? The small intestine is the organ where small digested molecules are absorbed into the bloodstream 3 of 17 What does the large intestine do? The large intestine is the organ where water passes back into the body, leaving solid waste 4 of 17 Why is bile important in digestion?(2 reasons) 1) Emulsifies fat 2) Neutralises stomach acid 5 of 17 Carbohydrates are broken down into starch Lipids are broken down into glycerol and fatty acids 6 of 17 Proteins are broken down into amino acids? h 7 of 17 What is a tissue? A group of similar cells that carry out a specific function. 8 of 17 Give three examples of human tissues • Connective tissue • Muscular tissue • Nervous tissue 9 of 17 What is an organ? A group of tissues in a living organism that have adapted to perform a specific function. 10 of 17 Give three examples of human organ 1. Brain 2. Stomach 3. Skin 11 of 17 Define an organ system An organ system is a group of organs, which work together as a system to perform one or more function. 12 of 17 Give three examples of human organ systems 1. Nervous System 2. Digestive System 3. Respiratory System 13 of 17 What do enzymes do? (3 reasons) • They speed up chemical reactions • They reduce activation energy • They are not used up in reactions 14 of 17 Embryonic stem cells definition Taken from fertilised egg cells. Lots of potential, taken from IVF but is experimenting with potential life 15 of 17 Adult stem cells definition Found in bone marrow. Less potential but consent can be given for use 16 of 17 Meristem cells definition Plant stem cells. Means it can grow throughout its life, forming new xylem and phloem 17 of 17
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