Answer:
Plant cells have a cell wall, as well as a cell membrane.
Explanation:
In plants, the cell wall surrounds a cell membrane. This gives the plant cell its unique or rectangular shape. animal cells simply have a cell membrane, but no cell wall.
Answer:
Plants exchange oxygen and carbon dioxide. The oxygen is used for respiration and is also a waste product of photsynthesis. The carbon dioxide is used for photsynthesis.
During the day time, the stomata of the plant will open to let the carbon dioxide in for photsynthesis. Cabron dioxide diffuses into the leaf down a concetration gradient. oxygen will leave the leaf down the concentration gradient.
This process is the gas exchnage of plants.
How stomata open: Stomata open during the dayby absorbing water vapor, become turgid and and open. During the night, the stomata becomes flaccid and floppy. this causes it to close.
Explanation:
Answer:
1. The sun shines on a plant 2.chlorophyll traps energy from the sun 3. the plant makes sugar and oxygen 4.cells use sugar for energy
Explanation:
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Given what we know, we can confirm that the three pathways of photosynthesis (C3, C4, and CAM) are all similar in that they use CO2 as the substrate in order to produce sugar, which is carbon-based.
<h3>Why are these pathways similar?</h3>
- These pathways all produce carbon-based molecules in the form of sugars or carbohydrates.
- These pathways are also similar in that they use carbon dioxide as the substrate in order to fuel these reactions and create sugar.
- Finally, they are also similar in terms of the use of carbon and the production of carbon-based molecules in that they all use the Calvin cycle to complete this process.
Therefore, we can confirm that each of the three pathways of photosynthesis are similar in terms of carbon and the formation of carbon-based molecules in that each of them uses the Calvin cycle in order to turn carbon dioxide into sugars.
To learn more about the Calvin cycle visit:
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Answer:
El síndrome de Down es el resultado de un niño nacido con un cromosoma adicional agregado al número esperado de cromosomas (generalmente destinado a ser 46).
El síndrome de Angelman se produce cuando un niño nace con una mutación en el 15º cromosoma heredado de los padres.
Explanation:
En el síndrome de Down, se agrega un cromosoma adicional al complemento de cromosomas que un niño debe heredar de sus padres. Se supone que un niño tiene un complemento de 46 cromosomas (23 cada uno) de ambos padres. Una vez que hay un aumento en este número, se establece el síndrome de down. Es una condición cromosómica común. Puede manifestarse como una trisomía, causada por la no disyunción durante la división celular, lo que resulta en 3 copias del cromosoma 21 en lugar de 2 copias, mosaicismo, donde una mezcla de células se clasifican en 2 grupos que contienen un complemento completo de 46 cromosomas y el otro un el cromosoma adicional lo hace 47 y la translocación ocurre cuando un cromosoma 21 adicional o parte del 21 se une al cromosoma 14. Los niños generalmente tienen cabezas y orejas pequeñas, cuellos cortos, caras planas, etc.
En el síndrome de Angelman, el cerebro se ve afectado en gran medida, debido al efecto de la mutación en el sistema nervioso. La pérdida de la función en el 15º cromosoma es responsable del síndrome de Angelman, que resulta en la incapacidad del niño para hablar, mantener el equilibrio, moverse, un desarrollo deficiente tanto física como intelectualmente.
