Stomata are usually opena. at night, when the plant requires a supply of oxygen.b. during the day, when the plant requires a supply of carbondioxide.c. day or night if there is excess water in the soil.d. during the day, when transpiration occurs.e. Both b and d are correct.

Stomata are usually opena. at night, when the plant requires a supply of oxygen.b. during the day, when the plant requires a supply of carbondioxide.c. day or night if there is excess water in the soil.d. during the day, when transpiration occurs.e. Both b and d are correct.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter26: Plant Nutrition And Transport

Section: Chapter Questions

Problem 10SA

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Question

Stomata are usually open
a. at night, when the plant requires a supply of oxygen.
b. during the day, when the plant requires a supply of carbon
dioxide.
c. day or night if there is excess water in the soil.
d. during the day, when transpiration occurs.
e. Both b and d are correct.

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