Which of the following statements about plant hormones is true?
A)Plant hormones are produced in very small concentrations.
B)Plant hormones mainly affect reproductive processes.
C)Individual hormones typically have single, specific effects.
D)Plant hormones play a vital role in photosynthesis.

Question

Quizplus · Accepted Answer

Plant hormones are produced in very small concentrations, often in parts per billion or parts per trillion. This is why they are also known as "phytohormones" or "growth substances".

Answer: C 
 Individual hormones typically have specific effects on plant growth and development, such as promoting cell elongation or inducing fruit ripening. However, some hormones can have multiple effects depending on their concentration and interaction with other hormones.

Answer: None of the choices 
 Choice B is incorrect because plant hormones affect many processes beyond reproduction, such as growth, development, and response to environmental stimuli. Choice D is incorrect because while plant hormones can influence photosynthesis indirectly through their effects on growth and development, they do not directly play a role in the process itself.

Which of the Following Statements About Plant Hormones Is True