hi i want to ask you what does a root do to help plants grow? and what does a leave do to help a plant grow? could you please answer this queastion immediately?
As I said to your later post, it is unrealistic to expect an immediate reply. However, you should typically get a reply within 24 hours, as most tutors check the message boards at least daily.
Since this is not my area of expertise, I searched Google under the key words "plant growth roots leaves" to get these possible sources:
http://ccl.northwestern.edu/netlogo/models/PlantGrowth
(Broken Link Removed)
http://www.life.umd.edu/classroom/bsci124/lec2.html
http://www.answers.com/topic/plant-growth
In the future, by using the appropriate key words, you can search yourself to get answers more quickly.
I hope this helps. Thanks for asking.
I am not a biologist or plant man but here is a non-scientific answer. Roots are the primary way plants derive nutrients and water from the soil. Leaves are how plants breathe and use sunshine in the process of photosynthesis to convert CO2 and H2O to starches (ultimately).
To get a more scientific and detailed answer about the role of roots and leaves in plant growth, you could consult reliable sources such as textbooks or scientific articles. Here is a general explanation:
1. Roots:
- Anchorage: The roots anchor plants in the soil, providing stability against wind and other external factors.
- Absorption of water and nutrients: Roots have tiny, hair-like structures called root hairs that increase the surface area for absorption. They absorb water and essential nutrients from the soil, which are necessary for the plant's growth and metabolism.
- Storage: Some plant species store carbohydrates and other nutrients in their roots, which can be used during periods of limited resource availability.
2. Leaves:
- Photosynthesis: Leaves play a crucial role in photosynthesis, the process by which plants convert sunlight, carbon dioxide, and water into glucose (a type of sugar) and oxygen. Chlorophyll, a pigment present in chloroplasts within the leaf cells, captures light energy and initiates the synthesis of glucose. Oxygen, a byproduct of photosynthesis, is released into the atmosphere.
- Gas exchange: Leaves also facilitate the exchange of gases with the atmosphere. They have tiny openings called stomata through which carbon dioxide enters and oxygen exits. Water vapor also evaporates through these openings, a process known as transpiration.
- Storage: Some plants store water, essential oils, pigments, or other substances in their leaves. These stored compounds can be used for various functions, including defense against herbivores or to attract pollinators.
Remember, while this explanation provides a general understanding, if you require more specific or in-depth information, it is recommended to consult reliable sources or seek guidance from a biologist or plant expert.