How do plants excrete their waste products?
By storing them in vacuoles or excreting through falling leaves and resins
Plants do not have dedicated excretory organs, so they handle wastes in several ways: many waste products are stored in cell vacuoles or as gums, resins and crystals, and a large amount is removed when old leaves and bark fall off the plant.
Plants also release some wastes into the surrounding soil through their roots, and gaseous wastes through stomata, but the key point is storage and shedding rather than a special organ.
"Through root hairs only" is wrong because root hairs mainly absorb water and minerals; excretion is not limited to them.
"Converting all wastes into oxygen and carbon dioxide" is wrong because most plant wastes are organic compounds that are not turned wholesale into these gases.
Nephrons are filtering units of the animal kidney; plants have no nephrons.
Hence, plants excrete by storing wastes in vacuoles or removing them through falling leaves and resins.
Which of the following statements is/are correct regarding vegetative propagation?
Statement A: Root, stem and leaves develop into new plants under appropriate conditions.
Statement B: Vegetative propagation is used in sugarcane, roses and grapes.
Which of the following plant nutrients is supplied from air?
The parenchyma cells in plants are:
Which of the following options best describes a component of a flower's reproductive system?
One advantage of sexual reproduction over asexual reproduction is that it helps species to survive over long evolutionary time. This is because sexual reproduction produces :
During a laboratory experiment, a student immerses epidermal leaf peel in a hypertonic solution. After some time, the student examined the cells under a microscope and observed that:
The breakdown of glucose in cytoplasm results in the formation of
After fertilization, the fruit and the seed are produced by