Biology

2001 1 The Australian hopping mouse, Notomys alexis, is a desert animal. It produces peeing that is very concentrated. Why is this an advantage for the animal? (A) It needs to tramp urine. (B) It is nocturnal and only drinks at dusk. (C) It has a high want of salt in its specialised diet. (D) It needs to excrete self-aggrandizing measuring sticks of pissing to survive. 2 What is the role of ADH (vasopressin)? (A) It increases the amount of piddle reabsorbed in the kidney. (B) It increases the amount of staff of life reabsorbed in the kidney. (C) It decreases the amount of water reabsorbed in the kidney. (D) It decreases the amount of scrape reabsorbed in the kidney. 3 The flow sheet represents one example of homeostasis in an endotherm. Which of the sideline does Response X represent in this cycle? (A) increase rate of labor production (B) Increased rate of urine production (C) fall rate of labor production (D) Decreased rate of urine prod uction 4 Four students were asked to project a first-hand investigation to determine the effect of pH on the activity of an enzyme. Their designs of the investigation are shown in the tables. Which investigation is the rough appropriate?

(A) name A (B) Design B (C) Design C (D) Design D 5 The sweet adjudicate of freshly-picked lemon is due to the high dulcorate content in the kernels. Enzyme action switchs about 50% of the net profit to starch within one day of picking. To preserve its sweetness, the freshly-picked corn is immersed in change state water for a few minutes, then cooled. Wh ich of the following explains why the boiled! corn kernels remain sweet? (A) boiling destroys the sugar molecules so that they cannot be converted into starch. (B) Boiling inactivates the enzyme prudent for converting sugar into starch. (C) Boiling kills a fungus on the corn that is demand to convert sugar into starch. (D) Boiling activates the enzyme that converts starch into sugar. Question 17 (3 marks) (a) Label, on the...If you want to get a full essay, enjoin it on our website: OrderCustomPaper.com

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