Archives: Questions and Answers

How is the supply of vascular cambium maintained? – by the differentiation of apical meristem – by the differentiation of secondary xylem – by the division of its cells – by the differentiation of cork – by the differentiation of secondary phloem

What is the function of cork? – regulating the opening and closing of stomata – providing a site for photosynthesis – providing cells for primary growth – providing cells for secondary growth – insulation and waterproofing

Vascular cambium forms wood toward the stem’s _____ and secondary phloem toward the stem’s _____. – surface … center – center … center – surface … surface – top … bottom – center … surface

____ provides cells for secondary growth. – Vascular cambium – Secondary phloem – Secondary xylem – Apical meristem – The root

Secondary growth NEVER occurs in _____. – leaves – stems and leaves – roots – stems – roots and leaves

How does carbon dioxide enter a leaf? – CO2 is moved by active transport into the leaf by special cells called guard cells. – CO2 passes through openings called stomata on the leaf surface. – CO2 diffuses through the epidermal cells into the mesophyll. – CO2 travels dissolved in the water in the xylem. – … Read more

What is transpiration in the water cycle?

What is transpiration?

What is transpiration in plants?

What does transpiration mean?