The model illustrates the relationship between photosynthesis and aerobic cellular respiration. The reactants needed by the plant for photosynthesis are CO2 and H2O in the presence of sunlight. How does the plant acquire the H2O needed for photosynthesis?
Responses
A from cellular respirationfrom cellular respiration
B absorption through the rootsabsorption through the roots
C osmosis through all plant partsosmosis through all plant parts
D transpiration through the leaves
B absorption through the roots
B absorption through the roots
To determine how a plant acquires the H2O needed for photosynthesis, we can refer to our understanding of plant biology.
In plants, water is typically acquired through a process called absorption through the roots.
The root system of a plant consists of tiny root hairs that are in direct contact with the soil. These root hairs have a large surface area, which allows them to absorb water from the soil.
Water in the soil contains dissolved nutrients that are essential for the plant's growth and development. Through a process called osmosis, water moves from areas of low solute concentration (inside the plant cells) to areas of high solute concentration (in the soil). This helps the plant to acquire the necessary water for photosynthesis.
Therefore, the correct answer to how the plant acquires the H2O needed for photosynthesis is B: absorption through the roots.