Class 11 Bio Ch 11 Notes
Important easy to understand Notes of Class 11 Bio Ch 11 Notes written by Professor Taskeen Hasider Suib. These notes are very helpful in the preparation of Biology for students of the 11 class Biology and these are according to the paper patterns of all Sindh Book Boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- What is Nutrition and Nutrients.
- What is holozoic Nutrition and process in holozoic nutrition.
- Types of Digestion and digestive system.
- Difference between SAC Like and Tube Like Digestive System.
- What is Human digestive system.
- Describe the Digestion in oral cavity.
- Describe the division of stomach and Glands in stomach.
- Describe the Mechanical Digestion in Stomach.
- Describe the Digestion in Intestine.
- Explain the Large Instestine.
- Explain the (i) Digestive Function of Liver and (ii) Non-Digestive Function of Liver.
- Explain the Disorders related to digestive system and food habits.
- List out the stages of holozoic nutritional.
- Enlist the role of large intestine.
- What accounts for the presence of bacteria in large intestine.
- List out some factors that may lead to obesity.
- What is anorexia nervosa?
- Define plica circulare.
- Which mode of nutrition is holozoic?
- Where are the taste buds located?
- What are the main functions of the oral cavity. or give oral cavity?
- Give the names and location of salivary glands found in man.
- What is the saliva? What are ingredients of saliva? or what is the composition of saliva. Give their role or what is pH and composition of a saliva?
- What is ptyalin or amylase?
- What is bile? Give its function.
- What are villi?
- What is the difference or differentiate between appendix and appendicitis? or what is appendicitis?
- What is the function of water and mucus found in saliva?
- What is peristalsis?
- What is antiperistalsis?
- What is the composition of stomach wall?
- What is gastric juice? What is the composition / ingredients of gastric juice?
- What is the function of hydrochloric acid leased by gastric glands?
- What is pepsin? or What is difference between pepsin and pepsinogen? or Give two ways by which pepsinogen is activated.
- What is chyme?
- What is the function of water and mucus found in saliva?
- Why holozoic nutrition is important?
- In which substance food of an organism consist of why nutrients are required for?
- Why digestion in planaria is intracellular as well as extracellular?
- How digested food is diffuses in planaria?
- Why are many proteases released in an inactive form?
- Why epiglottis is present on larynx?
- Why saliva is release?
- How pancreases served as both endocrine & exocrine gland?
- How obesity is considered as source of several killer diseases?
- How stomach itself is TΟΥ tected against the strong HCI?
- Why mucous is present on mucous living?
- Why pepsin is absent in infants?
- Why churning movement is needed?
- What causes in un-mixing of like and pancreatic juice?
- Why bicarbonate and ions are needed?
- Why bile is necessary?
- How villi can contract?
- Why large intestine lacks villi?
- Why infants have different muscles in Rectum?
- Why appendix is considered as vestigial organ?
- Why jaundice is not considered as a disease?
- How pancreas is served as exocrine as well as endocrine organ?
- How uncooked food is considered as contaminated sour of food poisoning?
- Why infants defecate inconveniently any time?