TCE Biology (BIO315124): mixed exam-style practice quiz
12 questions. Pick an answer and you'll see why right away. Options are shuffled each attempt, and the review at the end links each missed question to the dot point to revise.
Practice investigation: a student places pondweed in water and counts the oxygen bubbles released in one minute with a lamp at 10, 20, 30 and 40 cm. What is the independent variable?
Practice investigation: a student places pondweed in water and counts the oxygen bubbles released in one minute with a lamp at 10, 20, 30 and 40 cm. Why should the water temperature be controlled, for example with a heat shield or water bath?
Practice investigation: a student places pondweed in water and counts the oxygen bubbles released in one minute with a lamp at 10, 20, 30 and 40 cm. Each distance was tested only once. Which change best improves the reliability of the results?
Three trials at one lamp distance gave 12, 14 and 13 bubbles per minute. The mean rate is:
Which is the balanced net equation for photosynthesis, as required by the course?
Adding more substrate restores the maximum reaction rate of an enzyme in the presence of inhibitor X, but not in the presence of inhibitor Y. Which conclusion is correct?
In the lac operon of E. coli, what happens when lactose is absent?
A bushwalker's core temperature starts to fall on a cold, windy evening. Which responses help restore it?
After several hours of heavy exercise without drinking, which set of changes is expected?
A student receives a vaccine and later develops memory cells against the pathogen. This is:
Haemophilia is X-linked recessive. A carrier woman () and an unaffected man () have a daughter. The probability that the daughter has haemophilia is:
A population of 2000 birds is reduced to 20 by a disease outbreak and then recovers in number. Compared with before the outbreak, the recovered population is most likely to have: