HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
root
|
|
|
stem
|
|
|
flower
|
|
|
leaf
|
Detailed explanation-1: -Furthermore, the stem is the support system of the plant. Moreover, it shields the plant and assists in asexual dissemination. The thorns of a stem protect it from animals as well. The growth of a stem takes place upwards allowing leaves to reach the sunlight for photosynthesis.
Detailed explanation-2: -Parenchyma cells are responsible for metabolic functions, such as photosynthesis, and they help repair and heal wounds. Some parenchyma cells also store starch. Collenchyma cells are elongated cells with unevenly thickened walls (Figure 3). They provide structural support, mainly to the stem and leaves.
Detailed explanation-3: -Stems support the whole plant and help it to stand erect. It also helps in the transportation of food and water. At the same time, the function of leaves is to prepare food by the process called photosynthesis. Thus, it is not the leaf but it is the stem that holds the plant upright.