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4 years ago

Which of these processes occurs when you inhale?

2 answers:

4 0

The correct answer is D. When you inhale the diaphragm contracts or tightens and moves downward. This increases the thoracic volume or the space in your chest cavity, giving your lungs room to expand as they fill up with air.

professor190 [17]4 years ago

4 0

Answer:

D.The diaphragm contracts and thoracic volume increases.

Explanation:

During inhalation, the diaphragm and intercostal muscle contract which results in the expansion of the lungs. Due to this increase, the pressure is reduced. This decrease of pressure within the thoracic cavity as compared to the surroundings makes which creates a pressure gradient between the environment and the thoracic cavity. Due to the pressure gradient, air rush into the lungs

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What is the brains fear threat center called?

salantis [7]

"Medulla" is that center!!

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4 years ago

True or false when the body maintains homeostasis conditions in the body are unchanging

Fynjy0 [20]

Answer:

The correct answer is - true.

Explanation:

Homeostasis is the capacity to keep up a generally steady inward express that endures in spite of changes on the planet outside. Homeostasis ordinarily includes negative feedback circles that neutralize changes of different properties from their target values, known as set points.

Homeostasis is the property to oppose change so as to keep up a stable, moderately steady inward condition. Every single living being, from plants to little dogs to individuals, must manage their interior condition to deal with vitality and eventually survive.

Thus, the correct answer is - true.

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4 years ago

Uranium-235, with a half-life of 713,000,000 years, decays to lead-207. If a rock sample is determined to have one-quarter of th

eimsori [14]

Answer:

A 1.43 billion years

Explanation:

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3 years ago

For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle. For each glucose that enters glycolysis,

klio [65]

Answer:

For each glucose that enters glycolysis, 2 acetyl CoA enter the citric acid cycle.

Explanation:

SYNTHESIS OF 2Acetyl CoA -:

The glucose is transformed into 2pyruvate (6 carbon molecules are converted into 2 -3 carbon molecules) during glycolysis. In both aerobic and anaerobic respiration, glycolysis occurs frequently. This process takes place in the cytoplasm (it does not require oxygen or mitochondria), but if both oxygen and mitochondria are present, two molecules of pyruvate join mitochondria and prepare for citric acid cycle.

Until entering this, the molecules go through a mechanism known as the linked (connects glycolysis with citric acid cycle) reaction, in which the pyruvate molecule is transformed into 2 acetyl CoA (meaning 3 carbon molecules are converted into 2 carbon molecules) and a carbon molecule is released in the form of $2CO_2$ (waste product).

2NAD+ and NADH are synthesized in the linked reaction, implying that reducing power is produced. It means that electrons from pyruvate are released in the form of hydrogen, which 2NAD+ accepts and reduces to form 2 NADH.

$Glucose$ → $2pyruvate$ → $2Acetyl CoA$

Linked reaction is also known as oxidative -dicarboxylation.

Hence, 2 Acetyl CoA is required to enter citric acid cycle.

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3 years ago

What is the process being shown in the diagram below?

Kipish [7]

Digestion in Amoeba.

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4 years ago

Read 2 more answers