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tia_tia [17]
3 years ago
14

ASAP..I will give BRAINIALIST!! Describe how oxygen and hydrogen form water.

Biology
1 answer:
Ket [755]3 years ago
6 0

Answer:

When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide. In this oxidation, a molecule of hydrogen gas is ionized to two electrons and two protons

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2. What is the goal of the cell cycle/mitosis?
Serjik [45]

Answer:

<em>Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.</em>

<em></em>

8 0
2 years ago
Give two reasonsthat may account for the continuous firing of a<br> PostsynapticNeuron.
lyudmila [28]

Answer:

1.Continuous diffusion of negatively charged ions into the postsynaptic neurons , <u>which  leads to continuous reversal of charges (hyperpolarization) and therefore continuous firing of action potential</u>

2. Inhibition of hydrolytic enzymes e.g (acetycholinesterase)   that  metabolize activities of  cholinergic   neurotransmitters  e,g acetycholine at post synaptic cleft. leading to firing of action potential.

Explanation:

Neuron whose dendrites  transmits action potential to the  neuromuscular junction is called presynaptic neuron. While  neuron that  transmit action potential away from the neuronal synaptic junction, or from the neuromuscular  junction to the cell body of adjacent neuron or to effectors (gland and muscles) are called  post synaptic  neuron.

The more  negatively charged ions that diffused into the post synsptic neuron, the more depolarization, and the greater the frequency of action potential produced

The inhibition of  activities of hydrolytic enzyme which metabolize cholinergic neurotransmitter leads to  continuous   excitatory activities  of cholinergic neurotransmitters   on  the receptors at the postsynaptic neuron, and the more  action potential

6 0
3 years ago
when measuring the blood pressure, the cuff is deflated until two consecutive beats are heard through the stethoscope. This meas
dem82 [27]

Answer: Systolic pressure.

Explanation:

Every time the heart beats, it pumps blood into the arteries, which are vessels through which blood circulates from your heart to your tissues with the oxygen and nutrients they need. Blood pressure is the force of the blood pushing against the walls of the arteries, and is highest when the heart beats, pumping blood, which is measured as systolic pressure (i.e., when the heart contracts). On the other hand, diastolic blood pressure refers to the pressure of blood in the artery when the heart relaxes between beats (i.e., when the heart relaxes). Since there are two types of pressures, blood pressure readings are given in two numbers, with the top number being the systolic pressure and the bottom number being the diastolic pressure.  

For example, if the systolic pressure measured in a person is 125 millimeters of mercury (mm Hg) and the diastolic pressure is 85 mm Hg, the blood pressure is recorded as 125/85.  

So, <u>the systolic blood pressure is registered with the stethoscope when the cuff is deflated.</u> When two heartbeats are heard, the pressure gauge reading is recorded. <u>When the heartbeat ceases, the cuff pressure is released and the diastolic pressure is measured at this time.</u>

4 0
3 years ago
WILL GIVE BRAINLIEST!!!!
Archy [21]

The main difference between Exponential growth and Logistic growth is that logistic growth takes into account carrying capacity. On a graph, logistic growth levels off as it nears carrying capacity while exponential growth does not.

Exponential growth involves a positive feedback loop and Logistic growth involves a negative one.

please mark as brainliest if correct!

3 0
3 years ago
Read 2 more answers
The function of coenzyme A in the citric acid cycle is most like Group of answer choices a limousine driver dropping off a coupl
notka56 [123]

Answer:

a limousine driver dropping off a couple at the school prom

Explanation:

The citric acid cycle, also known as the Krebs cycle, is a metabolic pathway by which carbohydrates, lipids and amino acids can be oxidized to carbon dioxide (CO2) and water (H2O). Coenzyme A (CoA) is a key coenzyme in the citric acid cycle. Coenzyme A acts as a carrier of acyl groups: its acetyl-coenzyme A form delivers the acetyl group to the citric acid cycle in order to be oxidized for energy production. During the citric acid cycle, Coenzyme A delivers the acetyl group to oxaloacetate (a four-carbon molecule), in order to form citrate (a six-carbon molecule that contains three carboxyl groups). Subsequently, citrate is oxidized and decarboxylated to produce a succinyl CoA, 2 CO2, and 2 NADH.

5 0
2 years ago
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