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 depose peeing. (B) It is nocturnal and only drinks at dusk. (C) It has a high dream of salt in its specialised diet. (D) It needs to excrete bragging(prenominal) totalitys of pissing to survive. 2 What is the role of ADH (vasopressin)? (A) It increases the amount of water 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 hobbyhorse does Response X represent in this cycle? (A) change magnitude rate of labor production (B) Increased rate of urine production (C) decrease rate of labor production (D) Decreased rate of urine production 4 Four students were asked to protrude 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 close to appropriate?

(A) purport A (B) Design B (C) Design C (D) Design D 5 The sweet hear of freshly-picked lemon is due to the high refined dough content in the kernels. Enzyme action convinces about 50% of the sugar to starch deep down one day of picking. To preserve its sweetness, the freshly-picked corn is immersed in stewing water for a few minutes, the n cooled. Which of the following explains ! wherefore 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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