Plant Responses for OCR A-level Biology: Tropisms, Auxins, Gibberellins and Abscisic Acid
How plants respond to light, gravity and water stress, what auxin, gibberellins, abscisic acid and ethene do, and seven real OCR exam questions with mark-scheme answers.
OCR A Level Biology Plant and Animal Responses Exam Questions – 15 Question Self-Marking Quiz
This free quiz has 15 multiple choice questions on plant and animal responses, all taken from OCR A Level Biology A exam papers. It marks itself, so you get your score as soon as you finish.

