Water is one of the required reactants for photosynthesis. It provides electrons that are energized by sunlight and used to make energy carriers like ATP. Where do plants get the water they need for photosynthesis?
Responses
A Plants take in water from the air through their stems.Plants take in water from the air through their stems.
B Plants take in water from the soil through their roots.Plants take in water from the soil through their roots.
C Plants take in water from the air through their leaves.Plants take in water from the air through their leaves.
D Plants take in water from their leaves through the cuticle.Plants take in water from their leaves through the cuticle.
B Plants take in water from the soil through their roots.Plants take in water from the soil through their roots.
B Plants take in water from the soil through their roots.
The correct answer is B. Plants take in water from the soil through their roots.
To understand why water is taken in through the roots, it's important to know a bit about plant anatomy. Plants have special structures called root hairs that extend from their roots and are in direct contact with the soil. These root hairs increase the surface area of the roots, allowing for better absorption of water and nutrients from the soil.
When plants need water for photosynthesis, they use a process called transpiration to draw water up from the roots to the rest of the plant. Transpiration is the loss of water vapor through small pores on the surface of leaves, known as stomata. When water is lost through transpiration, it creates a pull or suction force that helps to draw water up through the plant, similar to how water would be drawn up through a straw.
Therefore, plants obtain the water they need for photosynthesis by taking it in through their roots from the soil.