Want to know:
The cells of beetroot contain a red pigment. A student investigated the effect of temperature onthe loss of red pigment from beetroot. He put discs cut from beetroot into tubes containing water.He maintained each tube at a different temperature. After 25 minutes, he measured thepercentage of light passing through the water in each tubeThe student put the same volume of water in each tube.Explain why it was important that he controlled this experimental variable [2 marks]
Get a detailed, AI-powered explanation for this question and thousands more on StudyFetch.
Get the Answer for FreeHow StudyFetch Helps You Master This Topic
AI-Powered Answers
Get instant, detailed explanations powered by AI that understands your course material.
Deep Understanding
Go beyond surface-level answers with step-by-step breakdowns and examples.
Personalized Learning
Sparky adapts to your learning style and helps you connect ideas.
Practice & Test
Turn any question into flashcards, quizzes, and practice tests to solidify your knowledge.
Explore More Questions
- What is the optimum pH of pancreatic amylase?
- What group of people made up the farmers that were part of Shays' Rebellion?
- Scientists estimated the strength of several RIBs between two genetically distinct beetle populations. RIBs were measured on a scale of 0 (complete gene flow) to 1 (full reproductive isolation) as follows. None of the individual RIBs are fully effective. Do you expect the populations to be reproductively isolated?