Rate Of Photosynthesis (GCSE Biology)

In a starch test, which sequence of steps is correct?

If a student wants to show that blue light gives a faster rate than green light using leaf discs, which control is essential?

Why are variegated (partly white) leaves useful in investigating photosynthesis and starch production?

When light intensity is increased from low to moderate levels while CO2 and temperature remain constant, what typically happens to the rate of photosynthesis?

In a controlled photosynthesis experiment using pondweed, which factor should be kept constant to ensure a fair test when comparing light colours?

Which experimental change would test the effect of CO2 concentration on rate of photosynthesis?

Why would a plant’s rate of photosynthesis decrease if stomata close due to drought stress?

What effect does very high temperature have on the enzymes involved in photosynthesis?

Which of these is a practical advantage of using a gas syringe rather than counting bubbles to measure oxygen production?

In an experiment using a lamp and pondweed, the student moved the lamp from 20 cm to 40 cm from the pondweed. According to the inverse square law, what happens to light intensity at the pondweed?

Which practical method is commonly used to measure the rate of photosynthesis by collecting gas?