You buy a new house and the front yard has some really nice rose bushes, but the

Question

You buy a new house and the front yard has some really nice rose bushes, but they are surrounded by lots of weeds! You don't really want to try and dig them out by hand and your nice new neighbor comes over with a bottle of weed killer. He says it shouldn't kill your roses, but you, knowing that weeds and rose are pretty similar physiologically decide to do some research. You find out the active ingredient in the weed killer causes the stomata close when in contact with the chemical.

What would be the results?

Explain which parts of photosynthesis would be effected and what those effects would be, how would the plant be effected?

Would it be likely to hurt your roses?

Explanation / Answer

What would be the results?

ANS: Stomata are found under plant leaves and are used for exchange of gases and they also release water vapor into the atmosphere.
Since the weed killer’s primary action is to close the stomata, it will most likely kill the roses too.

Explain which parts of photosynthesis would be affected and what those effects would be, how would the plant be effected?

ANS: Since stomata is of primary importance to photosynthesis, it’s closing will lead to lack of the building blocks/molecules for the essentials for the plant. There would be less or no intake of CO2 and hence will lead to death of the plants.

Would it be likely to hurt your roses?

ANS: Good air circulation is important to grow roses and it is recommended to grow the outside for this purpose. If the stomata closes, the roses will die. So the neighbour’s kind gift will most likely kill the roses too.

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