Some plants that live in dry environments have stomata that are sunken in pits on their leaves.
Why are sunken stomata an advantage to these plants?
They slow down the rate of respiration.
They slow down the rate of transpiration.
They prevent the plant from photosynthesising.
They stop translocation in the leaf.
194 exam-style questions on OCR GCSE Biology 2.1 Supplying the cell, covering 2.1.1 Transport across cell membranes, 2.1.2 Mitosis and the cell cycle, 2.1.3 Importance of cell differentiation, and 2.1.4 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.