1. Consider a scenario in which the soil in which Banana plant seedlings have been planted is supplied with nitrogen in

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1 Consider A Scenario In Which The Soil In Which Banana Plant Seedlings Have Been Planted Is Supplied With Nitrogen In 1 (44.63 KiB) Viewed 66 times

1. Consider a scenario in which the soil in which Banana plant seedlings have been planted is supplied with nitrogen in the form of K'NO. (a) Explain why rain water will be so important for the uptake or absorption of this nitrogen by the banana tree seedlings. (6) (b) Mention two functions of the nitrogen that will be absorbed by these Banana seedlings. (2) (c) Fully grown Banana trees will produce Bananas. Mention a mineral element that bananas are rich in and also mention the role of this element in living organisms. (2) 2. (a) Mention the function of (i) glucose, (ii) cellulose, (ii) cholesterol and (iv) and (iv) Bile salts and (v) phospholipids. (5) (b) Mention any two structural differences between a neutral fat and a phospholipid. (2) (c) Mention any two structural differences between starch and cellulose. (2) (d) The tertiary structure of a protein is determined by four factors that involve interactions between R groups of the amino acids. Mention any two of these four factors. (2) (e) Mention any two functions performed by membrane proteins. (2) 3. (a) Mention any two basic features that a prokaryotic and a eukaryotic cell have in common. (2) (b) Mention any two functions of the smooth ER. (2) (c) Mention any two functions of the lysosome. (2) (d) Mention any two functions of the vacuole in plant cells. (2) (e) Mention any two functions of the microtubules (2) (f) What kind of cell junctions are found in (i) tissues lining the intestines and (ii) tissues of the heart (2)