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Question
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.
B Plants take in water from the soil through their roots.
Plants get the water they need for photosynthesis from option B: Plants take in water from the soil through their roots.
To determine where plants get the water they need for photosynthesis, we need to understand the process of photosynthesis and how plants absorb water.
Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into glucose (a type of sugar) and oxygen. This process occurs in specialized plant structures called chloroplasts, which are primarily located in the leaves of plants.
Now, let's examine the options:
A) Plants take in water from the air through their stems.
B) Plants take in water from the soil through their roots.
C) Plants take in water from the air through their leaves.
D) Plants take in water from their leaves through the cuticle.
Out of these options, the correct answer is B. Plants take in water from the soil through their roots. The roots of plants are specialized structures that have tiny hair-like structures called root hairs. These root hairs increase the surface area of the roots, allowing them to absorb water and nutrients from the surrounding soil. The water absorbed by the roots is then transported through the stem to the leaves, where it is used during photosynthesis.
Therefore, plants obtain the water they need for photosynthesis by taking in water from the soil through their roots.