life science grade 11 assignment term 2 animal nutrition

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Gr.11 T2 Revision Booklet Life Sciences 2024

Life Sciences Grade 11 Term 2 revision material 2024

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7. Animal Nutrition

Study & master life sciences learner's book page 162 - 193, core content.

The differences in dentition for herbivorous, carnivorous and omnivorous lifestyles in terms of nutritional requirements and energy relationships (link with ecology - food chains).

• Human nutrition

The macro-structure of the alimentary canal and associated organs and the functions of the different parts.

• The Processes of ingestion, digestion, absorption, assimilation and egestion and the significance of each:

- Mechanical or physical digestion: types and functions of different kinds of teeth, processes of chewing. Peristalsis

- Chemical digestion: Enzymes: functions of carbohydrases, proteases and lipases: where produced; substrate, pH and end-products (Specific enzymes need not be named - link to enzyme activity.)

- Absorption: small intestine as a region of most absorption of digested food; adaptations to increase surface area. Structure (to tissue level) and significance of villi. Importance of hepatic portal system in the transport of absorbed food to the liver and then through hepatic vein to the rest of the body

- Assimilation: incorporation of glucose and amino acids into cells, the role of the liver: glucose metabolism, deamination of excess amino acids, and the breakdown of alcohol, drugs and hormones.

• Homeostatic Control

Hormonal control of blood sugar levels.Increase in the number of people affected by diabetes in recent years and brief explanation of diabetes.

The relationships between food intake, energy, growth and health. The importance of a balanced diet and changing requirements due to age, gender and activity levels.

- Different diets due to cultural, religious, personal and health choices, e.g., vegan, vegetarian, halaal, kosher

- Interpret dietary information on food packaging;

- Dietary supplements: for health, sport, beauty and anti-ageing (link to organic and inorganic substances)

- Malnutrition: the reason for and the effects of malnutrition with respect to unbalanced diets (e.g., kwashiorkor), starvation (e.g., marasmus and anorexia), bulimia, food allergies, coronary heart disease, diabetes and obesity.

• Analysis of information in the popular press, or any other sources, with respect to malnutrition.

• Tooth decay related to diet and fluoride in water supplies and its effect on teeth.

• The effects of alcohol and drug abuse and the dangers associated with their misuse.

2. Activities to be completed

Act. 1 How different types of teeth are related to lifestyle (page 163)

Table (page 164)

Act. 3 The structure of the human digestive system (page 168)

Act. 4 The breakdown of food (page 169)

Act. 5 Why are the stomach walls not digested? (page 170)

Act. 6 The process of digestion (page 174)

Act. 7 Illustrating what happens to nutrients (page 174) - complete in workbook over TWO A4 pages.

Act. 8 An investigation into digestion (page 175 - 176)

Act. 9 Diabetes mellitus (page 177)

Act. 10 Essay: The hormonal control of blood glucose (page 177) - VERY IMPORTANT! LEARN!!!

Act. 11 The prevalance of diabetes mellitus in South Africa (page 178)

Act. 12 Energy content of food (page 179)

Act. 13 Nutritional composition of foods (page 181)

Act. 14 Project: Nutritional disorders (page 184) - Select a nutritional disorder from Table 2.2.7 (page 83) and collect the required information as outlined in the activity. Record in your workbooks.

Act. 15 Tooth decay (page 185)

Act. 16 Formal Assessment Task: Nutrient sources (page 187 - 188)

Activity: Self assessment (page 190 - 193)

Textbook Activities - QUESTIONS (For the bananas who left their textbooks at school)

Textbook Activities - MEMO

3. Relevant video resources

Mindset Resources: Animal Nutrition

4. Revision resources

5. informal assessments.

Class Test 1: Animal Nutrition

• No category

life-sciences-grade-11-chapter-5-animal-nutrition

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GRADE 11 LIFE SCIENCES CLASSWORK ANIMAL NUTRITION WITH MEMORANDUM (2022)

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GRADE 11 LIFE SCIENCES CLASSWORK ANIMAL NUTRITION THERE ARE 63 QUESTIONS TERMINOLOGY, SHORT ANSWER, MATCHING AND DIAGRAM QUESTIONS ARE PRESENT IN THE DOCUMENT MEMORANDUM IS AVAILABLE PERFECT FOR REVISION PURPOSES GOOD LUCK

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