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Lostsunrise [7]
3 years ago
10

Jeremy walks down a dark alley and finds himself confronted by a vicious dog. His heart starts beating faster and his eyes dilat

e, so he can see better in the dark. _____ has been released from his pituitary gland to help him prepare for the danger.
Biology
1 answer:
salantis [7]3 years ago
8 0

Answer:

Adrenocorticotropic hormone (ACTH)

Explanation:

During stress condition, the pituitary gland located in the brain receives a stimulatory signal from the hypothalamus and releases the Adrenocorticotropic hormone .

The Adrenocorticotropic circulate in the brain and when reaches the adrenal gland causes the release of the cortisol and the epinephrine or adrenaline from the adrenal gland cortex.

These two hormones along with norepinephrine acts in the adrenergic receptors and produces the stress response or fight or flight response.

Thus, Adrenocorticotropic hormone is the correct answer.

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Why is Catalase important to the body?
oksian1 [2.3K]

Answer:

Catalase behaves as a catalyst for the conversion of hydrogen peroxide into water and oxygen.

Explanation:

Catalase is an antioxidant enzyme that plays a very important role in the protection against oxidative damage by breaking down hydrogen peroxide. It is a very highly conserved enzyme that has been identified from numerous species including bacteria, fungi, plants and animals.

Catalase has one of the highest turnover numbers for all known enzymes (40,000,000 molecules/second). This high rate shows an importance for the enzymes capability for detoxifying hydrogen peroxide and preventing the formation of carbon dioxide bubbles in the blood.

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3 years ago
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What is the best way to study?? I need help to study for Science
Volgvan
The best way may be is going over the notes on the chapter you were doing. Or going over the chapter once or twice.
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3 years ago
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Qué tipo de anomalía cromosómica es el síndrome de down y Cómo se manifiesta? ¿Qué tipo de anomalía cromosómica es el síndrome d
sashaice [31]

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.

5 0
3 years ago
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fenix001 [56]

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