FORESTRY
PLANT AND WOOD ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It keeps the pollen dry by exposing it to air while keeping the ovary moist
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a. It makes it possible for seeds to develop both in the ovary and in the pollen grains.
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It encourages animals to carry pollen for cross-fertilization while leaving the ovary alone
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a. It allows the plant to self-fertilize more easily since the pollen can drop into the ovary.
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Detailed explanation-1: -In some flowers, the ovary is hidden deep within the base of the flower while the pollen is held up in the air, often near a source of nectar. How is this general design helpful to the plant? It encourages animals to carry pollen for cross-fertilization while leaving the ovary alone.
Detailed explanation-2: -Stomata facilitate not only the uptake of CO2 but also the exchange of all gases between the aerial parts of the plant and the atmosphere. Water vapour and oxygen molecules exit the leaf through the same path as CO2 enters, but usually in the opposite direction (Figure
Detailed explanation-3: -Stomata, as mentioned above, are the structures through which gas exchange occurs in leaves. Each stoma is surrounded by two guard cells, which can open and close depending on environmental conditions.
Detailed explanation-4: -All leaves change sunlight into energy through photosynthesis. The leaves are the primary food-making part of the plant. Leaves absorb carbon dioxide from the air, combine it with water that comes through the roots of the plants to make food (a sugar molecule known as glucose), and release oxygen into the air.
Detailed explanation-5: -Stomata open in response to light, including blue and red light (Shimazaki et al., 2007). Red light induces stomatal opening via photosynthesis in the mesophyll and guard cell chloroplasts (Mott et al., 2008; Suetsugu et al., 2014). In contrast, blue light as a signal induces stomatal opening.