Download Life Sciences Grade 11 Previous Question Papers and Memos 2019

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Life Sciences Grade 11 Question Papers 2018

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Memos

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Memos

 

Life Sciences Grade 11 Essays Topics

 

NUTRITION (DIABETES) – Blood glucose levels are controlled by two hormones: insulin and glucagon. These hormones are secreted by the pancreas. Discuss what happens in a healthy person and a person with diabetes

NUTRITION (DIABETES)
Describe how the human body regulates the blood sugar level after a breakfast of maize soft porridge and suggest two ways in which diabetes mellitus can be controlled.

NUTRITION – Describe the digestion, absorption and assimilation of food that contains PROTEIN only

NUTRITION – Describe the digestion, absorption and assimilation of food that contains FATS only

NUTRITION – Describe the digestion, absorption, and assimilation of food that contains carbohydrates only. Also, describe the homeostatic control of glucose concentration of the blood in a normal healthy person

NUTRITION
Describe the digestion and absorption of food that contains only carbohydrates. Also, describe the transport of the products of carbohydrate digestion, following their absorption (EC, Nov 2017)

PHOTOSYNTHESIS – Describe the process of photosynthesis from the time light is absorbed until carbohydrates are formed.

PHOTOSYNTHESIS
Carbon dioxide id required in the dark phase of photosynthesis but is released during the Krebs cycle of cellular respiration. Describe the dark phase of photosynthesis and Krebs cycle of respiration and then explain the structural adaptations of the mitochondria for respiration’ (June 2017)

PHOTOSYNTHESIS
Photosynthesis takes place within the chloroplasts of green plants. Explain THREE structural adaptation of chloroplast and describe the process of photosynthesis (June 2016)

PHOTOSYNTHEISS
Describe the process of photosynthesis and explain how this process may be influenced by temperature (June 2015)

RESPIRATION – Describe how anaerobic respiration is involved in the food industry. Give at least two examples.

RESPIRATION
Describe the different stages of aerobic respiration and explain how high levels of CO2 produced during strenuous exercise are reduced to normal in the human body.

RESPIRATION – Describe how the process of the LIGHT PHASE of photosynthesis is used to form a GLUCOSE molecule and how this molecule is then broken down in the cell of a plant to release energy

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