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Life Processes at the Cellular Level · Part 5 of 5
9 exam-style questions with model answers, plus 12 quick multi-choice questions — every question on this part of the standard, grouped by the 3 pages of notes they come from.
Write a full answer before you reveal the model one. That comparison is where the learning happens.
Name the three stages of interphase and state what happens in each.
Explain why DNA replication must be completed before mitosis begins.
Cancer treatments often target cells that are dividing rapidly. Discuss why this approach works, why it produces the side effects it does, and what this reveals about the normal control of the cell cycle.
State the complementary base pairing rules for DNA, and write the complementary strand for the sequence G G A T C A.
Explain why DNA replication is described as semi-conservative, and explain why the two resulting molecules are identical.
Explain why the specific pairing of A with T and C with G is essential, discussing what would happen if bases could pair in any combination, and why the antiparallel arrangement of the strands matters.
State the four stages of mitosis in order, and describe what happens during anaphase. State how many daughter cells are produced and how they compare genetically to the parent cell.
Explain why a multicellular organism grows by producing more cells rather than by making its existing cells larger.
A kūmara plant reproduces asexually, producing new plants from tubers by mitosis. Discuss the advantages and disadvantages of this for the population, and explain why the process reliably produces plants identical to the parent.