Identify the key biological processes, hormones, structures, and variations described in the provided text.

Another one J — let's solve it. Here are the answers to the questions from your notes: Question 11: The most important hormone that induces the ripening of fruit is ethylene. Question 12: The anaerobic fermentation of a glucose molecule yields ethanol (alcohol) and carbon dioxide. (Note: Pyruvic acid is an intermediate, not a final product alongside alcohol). Question 13: Excess water in plants is excreted as water vapour and droplets respectively through transpiration and guttation. Question 14: Mammals are capable of producing hypertonic urine mainly because of reabsorption in the loop of Henle. Question 15: The photosynthetic pigments include chlorophylls and carotenoids. (Note: Chloroplasts are organelles, not pigments, and cytochromes are involved in electron transport, not primary light absorption). Question 16: When two equal sized pieces of unripe pawpaw labelled X and Y are dropped into equal volumes of concentrated salt solution and distilled water respectively, pawpaw Y will become turgid. Question 17: The diseases listed above (Onchocerciasis, Schistosomiasis, and Salmonellosis) are associated with poor sanitation and contaminated water. Question 18: Dilute solution of phenylthiocarbamide tastes bitter to some people and it is tasteless to others. This is an example of discontinuous variation. Got more? Send 'em 📸