Plant Structure & Function: Evolutionary Perspective

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@GentlestDouglasFir

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Questions and Answers

Why can vascular plants sustain high rates of water loss?

Because they can absorb water from the soil and air

Because they can absorb water from the air

Because they can recycle water from within their cells

Because they can access water from the soil (correct)

What is the main role of the cuticle in leaves?

To prevent the loss of water and CO2

To limit water loss and prevent the uptake of CO2 (correct)

To allow for the uptake of CO2 and the loss of water

To allow for the uptake of CO2 and water

How do leaves maintain the balance between water loss and CO2 uptake?

By adjusting the frequency of stomatal opening and closing (correct)

By adjusting the size of stomata

By adjusting the humidity within the internal air spaces

By adjusting the rate of transpiration

What is the function of stomata in leaves?

To allow the diffusion of CO2 and water Signup and view all the answers

Why do leaves have stomata?

To allow the diffusion of CO2 and water Signup and view all the answers

What is the role of the epidermis in preventing water loss?

To secrete a waxy cuticle on its outer surface Signup and view all the answers

What is the consequence of the absence of a cuticle on the epidermis?

A drop in humidity within the internal air spaces Signup and view all the answers

What is the role of stomata in leaves?

To allow the diffusion of CO2 and water Signup and view all the answers

Why do leaves have to balance between water loss and CO2 uptake?

Because water and CO2 are essential for photosynthesis Signup and view all the answers

How do leaves handle the alternating dryness and wetness of the soil?

By adjusting the frequency of stomatal opening and closing Signup and view all the answers

What is the balance that leaves strive to maintain?

The balance between water loss and CO2 uptake Signup and view all the answers

Plant Structure & Function: Evolutionary Perspective

Podcast

Questions and Answers

Why can vascular plants sustain high rates of water loss?

What is the main role of the cuticle in leaves?

How do leaves maintain the balance between water loss and CO2 uptake?

What is the function of stomata in leaves?

Why do leaves have stomata?

What is the role of the epidermis in preventing water loss?

What is the consequence of the absence of a cuticle on the epidermis?

What is the role of stomata in leaves?

Why do leaves have to balance between water loss and CO2 uptake?

How do leaves handle the alternating dryness and wetness of the soil?

What is the balance that leaves strive to maintain?

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