In an experiment, a scientist removes half of the aerenchyma tissues and covers the remaining half with wax what will he observe and why?
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Answers
Explanation:
Aerenchyma is a spongy tissue that forms spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. The channels of air-filled cavities (see image to right) provide a low-resistance internal pathway for the exchange of gases such as oxygen and ethylene between the plant above the water and the submerged tissues. Aerenchyma is also widespread in aquatic and wetland plants which must grow in hypoxic soils.
Answer:
The coat of wax would cover up all the small openings that the leaf has for exchange of carbon dioxide and oxygen. Lack of carbon dioxide would stop it from making food for the plant by affecting the photosynthesis and also the transpiration of water that happens to the small opening food stop.