PLANT PHYSIOLOGY
PLANT GROWTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Seeds can use the food stored inside.
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Seeds can do photosynthesis in the dark soil.
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Seeds can produce light to make their own food.
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Seeds can do photosynthesis without light.
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Detailed explanation-1: -Some seeds do not need light to germinate. This is because they do not contain chlorophyll in their cells. Therefore, they do not use sunlight for photosynthesis like other plants do but still provide an essential role inside the ecosystem.
Detailed explanation-2: -Most seeds germinate best under dark conditions and might even be inhibited by light (e.g., Phacelia and Allium spp.). However, some species (e.g., Begonia, Primula, Coleus) need light to germinate (Miles and Brown 2007). Don’t confuse seed light requirements with what seedlings need. All seedlings require sunlight.
Detailed explanation-3: -Endosperm: The endosperm is a tissue that is present inside the seeds of angiosperms. It stores food in the form of starch. The stored food is used by an embryo for its nourishment and growth.
Detailed explanation-4: -If you are planting seeds indoors, then your seedlings must have strong light once the first leaves have emerged. Otherwise, they will get leggy and weak, a sure sign they are not getting enough light.