Question

If you help you get 40 points!!!!

In plants, leaves are the primary photosynthetic organ. The diagram shows a cross section of a leaf; DISCUSS what would happen if the guard cells permanently blocked the stomata on the underside of the leaves of a plant. Include at least 2 possible scenarios that could happen to the plant if the stomata were blocked. Number each example, and provide specific examples supporting your answers in complete sentences.

Answer 1

Permanently blocked stomata would impair photosynthesis by preventing CO2 intake and disrupt water regulation through transpiration, potentially leading to reduced plant growth, cellular damage, and impacts on nutrient uptake.

Step-by-step explanation:

Consequences of Permanent Stomatal Closure

If the guard cells permanently blocked the stomata on the underside of the leaves of a plant, several scenarios could arise due to disrupted gas exchange and water regulation:

1. Impaired Photosynthesis: Photosynthesis requires the intake of carbon dioxide (CO2). If the stomata are blocked, the inability to absorb CO2 would severely limit the plant's capacity to perform photosynthesis, leading to reduced growth and potentially the plant's death due to the lack of glucose production for energy.
2. Disrupted Water Regulation: Stomata also play a crucial role in transpiration, which helps pull water and nutrients from the roots through the plant. Permanently closed stomata would reduce transpiration, leading to an overaccumulation of water within the leaf, causing cellular damage or impacting nutrient uptake.

These are just two examples supporting the importance of functional stomata for a plant's survival and health. Any disturbance in their regulation could have detrimental effects on the plant's overall physiology.

Answer 2

Hey there!


1. Taking in oxygen is very important because it allows your cells to do things, like make energy from the food you eat. Plants 'breathe' too, but they do it through tiny openings in leaves called stomata (singular: stoma). Stomata open and close to allow the intake of carbon dioxide and the release of oxygen.

Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata.If the guard cells permanently blocked the stomata, essential gas(es), such as carbon dioxide, would not have access to the stoma. Thus being, the plant would not be able to go through photosynthesis and therefore die.


2.As stated before, the stomata are openings on the bottom of leaves that allow for gas exchange and water from the plant tissue can evaporate through them. If the stomata are open all the time water from the plant will diffuse into the air based on humidity, basically if there is more water in the leaf than in the air, water will leave the leaf until the air around it has the same amount of water as in the leaf. SO, if the air is dry the plant could lose a lot of water, which can eventually also lead to death.

I hope I was able to explain this in a way you can understand. (I labeled the scenarios to make it easy for ya *wink*)

-Much love, Makayla