What is the primary role of the stomata found on the surface of plant leaves?
Answer and explanation
Correct answer: B. regulating gas exchange of CO2 and O2 and controlling transpirational water loss
- Step 1: Stomata (flanked by guard cells) open to take in CO2 and release O2, while regulating water vapor transpiration. Answer: regulating gas exchange of CO2 and O2 and controlling transpirational water loss. Why not the others: Roots absorb water/minerals; mesophyll synthesizes sucrose.
Practise more Biological Sciences, Genetics and Physiology.
Free questions with an explanation for every one, and full timed University of the Philippines College Admission Test mock tests.
More Biological Sciences, Genetics and Physiology questions
- Which cellular organelle is responsible for synthesizing ATP through oxidative phosphorylation during aerobic cellular respiration?
- In Mendelian genetics, what is the expected phenotypic ratio in the F2 generation of a monohybrid cross between two heterozygous individuals…
- During which phase of meiosis does crossing over (homologous recombination) occur?
- What is the central dogma of molecular biology describing the flow of genetic information?
- Which enzyme unzips and unwinds the DNA double helix at the replication fork during semi-conservative DNA replication?
- What is the primary function of hemoglobin in human erythrocytes?