State the causes of scurvy and rickets
State the causes of scurvy and rickets
1 AnswerQuestions and Answers
1 Answer State the principal dietary sources and describe the importance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, limited to C and D (e) mineral ions, limited to calcium and iron (f) fibre (roughage) (g) water
State the principal dietary sources and describe the importance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, limited to C and D (e) mineral ions, limited to calcium and iron (f) fibre (roughage) (g) water
1 Answer Describe what is meant by a balanced diet
Describe what is meant by a balanced diet
1 Answer Identify in diagrams and images the following structures in the leaf of a dicotyledonous plant: chloroplasts, cuticle, guard cells and stomata, upper and lower epidermis, palisade mesophyll, spongy mesophyll, air spaces, vascular bundles, xylem and phloem
Identify in diagrams and images the following structures in the leaf of a dicotyledonous plant: chloroplasts, cuticle, guard cells and stomata, upper and lower epidermis, palisade mesophyll, spongy mesophyll, air spaces, vascular bundles, xylem and phloem
1 Answer Investigate and describe the effect of light and dark conditions on gas exchange in an aquatic plant using hydrogencarbonate indicator solution
Investigate and describe the effect of light and dark conditions on gas exchange in an aquatic plant using hydrogencarbonate indicator solution
1 Answer Investigate and describe the effects of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis
Investigate and describe the effects of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis
1 Answer Explain the importance of: (a) nitrate ions for making amino acids (b) magnesium ions for making chlorophyll
Explain the importance of: (a) nitrate ions for making amino acids (b) magnesium ions for making chlorophyll
1 Answer State that chlorophyll transfers energy from light into energy in chemicals, for the synthesis of carbohydrates
State that chlorophyll transfers energy from light into energy in chemicals, for the synthesis of carbohydrates
1 Answer State the word equation for photosynthesis as: carbon dioxide + water → glucose + oxygen in the presence of light and chlorophyll
State the word equation for photosynthesis as: carbon dioxide + water → glucose + oxygen in the presence of light and chlorophyll
1 Answer Describe photosynthesis as the process by which plants synthesise carbohydrates from raw materials using energy from light
Describe photosynthesis as the process by which plants synthesise carbohydrates from raw materials using energy from light
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