Which process is a form of primary growth?

Increase in stem diameter by vascular cambium

Why is the root cap continually renewed?

Outer cells are worn away as the root advances through soil

It is the main site of photosynthesis

The quiescent centre is important because it:

Helps maintain root-meristem organization and regenerative capacity

Which statement about histogen theory is correct?

It proposes tissue-forming regions in the apex

It explains only hormone transport

It describes fruit ripening stages

It is a theory of pollinator behaviour

In many shoot apices, the corpus differs from tunica because corpus cells:

Divide only anticlinally in every case

Which event can release lateral buds from apical dominance?

Removal or suppression of the shoot apex

Addition of more apical auxin in every case

Gibberellin promotes cereal seed germination partly by stimulating:

Alpha-amylase production in the aleurone

Chlorophyll destruction in roots

Which hormone balance commonly favours shoot regeneration in tissue culture?

Relatively high cytokinin compared with auxin

Relatively high ABA compared with all signals

Plant Growth, Development and Reproduction — Quiz 3 of 4

Part 3 of 4 in the 200-question Plant Growth, Development and Reproduction series. This quiz contains questions 101–150 from the original quiz, with original question order, answer keys and explanations preserved where supported. Suggested time: 45 minutes.

Made with 💙 by @benjvmin243