Unit 6 Critical Thinking Questions! (HELP) - 30 POINTS


1. Compare and contrast positive and negative feedback loops of the endocrine system. Provide a specific example of each, including which gland is responsible for the hormone related to that loop.



2. What is the difference between endocrine and exocrine glands in terms of both form and function? Why is one type not considered part of the endocrine system?



3. Describe the cascade of events that occurs when blood glucose levels decline, including which organ and cells respond, which hormones are released, and how the process helps maintain homeostasis. Your answer should cover all three ways glucose is re-introduced to the body. What is the ultimate use of the glucose created in this process?



4. Why can both type I and type II diabetes, untreated, result in impaired vision or blindness as someone ages? How does type II diabetes turn into type I diabetes as someone ages?



5. Imagine you have a patient who has come to you and is exhibiting symptoms such as fatigue and increased thirst and urination. What would you check for to determine whether the patient has Cushing’s, type I diabetes, or type II diabetes?

The concentration of the HF solution is  0.03.

We know that the concentration has to do with the amount of the substance that is present in the system. We know that what we have is an acid hence we can only talk about the concentration of the acid if we can obtain the amount of the hydrogen ion.

We know that the acid is defined as any substance in which there is the presence of the hydrogen ion is what we call and acid. Since the hydrogen fluoride does have the hydrogen, we can say that the substance that we are dealing with here is an acid.

Thus;

pH = 14 - pOH

pOH = hydroxide ion concentration

pH = hydrogen ion concentration

pH = 14 - 12.5

= 1.5

[HF]  = Antilog (-1.5)

= 0.03

The acid would have a concentration of  0.03.

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Answer:

Approximately 7.65

Explanation:

math.

skillz.

The staggered Newman projection of heptane with the highest energy is the last one mentioned, which has the substituent groups H н ot Н. (CH2)2CH3 H. H3C eclipsed to each other.

To determine which staggered Newman projection of heptane has the highest energy, we need to look at the steric hindrance caused by the substituent groups.

In the Newman projection with H (CH2)2CH3 H, all the substituent groups are in the anti position, which means they are farthest apart and experience the least amount of steric hindrance. This conformation is the most stable and has the lowest energy.

In the Newman projection with H3C DE H H H pt H H H CH3 H H, the two methyl groups are in the gauche position, which means they are closer together and experience more steric hindrance than the anti conformation. However, this conformation is still more stable than the last option.

In the Newman projection with CH3 (CH2)2CH3 H, the two ethyl groups are in the gauche position, which means they experience more steric hindrance than the anti conformation. This conformation is less stable than the first two options.

In the Newman projection with H н ot Н. (CH2)2CH3 H. H3C, the two substituent groups on either side of the central carbon are both in the eclipsed position, which means they experience the most steric hindrance. This conformation is the least stable and has the highest energy.

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Answer:

Total minute ventilation is comprised of dead space plus alveolar ventilation. Minute ventilation is respiratory frequency (14 breaths per minute) multiplied by tidal volume (450 mL/breath) = 6300 mL/min.

Explanation:

hope this helps you!

Answer:

obesity means having too much fat

hemoglobin is a protein in red blood cells .

for example if your hemoglobin is low you are anemic.

obesity if you are overweight your health is at risk because of excess fat.

When the reaction is subjected to pressure, the equilibrium will shift to the side with fewer gas molecules, which is the left side. Therefore, the answer is c. left.

According to Le Chatelier's principle, when a system at equilibrium is subjected to a change in pressure, it will respond by shifting in a way that reduces the effect of the change. In this case, increasing the pressure would cause the equilibrium to shift towards the side with fewer gas molecules to alleviate the increase in pressure.

Since there are fewer gas molecules on the left side of the reaction (2 CO + O2), the equilibrium will shift to the left to reduce the total number of gas molecules. This means that the concentrations of CO and O2 will increase, while the concentration of CO2 will decrease until a new equilibrium is established. Thus, the equilibrium will shift to the left.

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The molar mass and molecular weight of bromobenzene  is 157.008.

Actually, you wouldn't even need to be aware of the amount of benzene or bromobenzene created. Using the balanced equation, you can calculate that one mole of bromobenzene (157 g/mol) will be created for every mole of benzene (78 g/mol). Thus, 157 g of bromobenzene will be created from 78 g of benzene.

Bromobenzene is produced when benzene and bromine combine with either aluminium bromide or iron.

There are a total of 12 bonds in the molecule of brombobenzene (s) Seven non-H bonds, six multiple bonds, six aromatic bonds, and one six-membered ring are present (s). Skeletal formula, which is the accepted nomenclature for organic compounds, is another name for the 2D chemical structure illustration of BROMOBENZENE.

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Egg whites are simply made frothy by adding air during the whipping process. It's a physical shift as they are still eggs whites—a material that has not changed. Yet in a chemical transformation.

To put it another way, a chemical always consists of the same "substance." There are some substances in nature, like water. Other chemicals, including chlorine, are produced

All of these things are made of chemicals, some organic and others manmade, including air, water, iron, fuel, clothes, stones, equipment, plastics, plants, and food. Chemicals can be made up of several distinct chemicals or they might be specific chemical molecule like water. Nitrogen, carbon, water, carbon dioxide, and other substances are all present in air.

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Answer:

false

Explanation:

you have bromine , its a non metal and liquid in room temperature

Answer: Calcium carbide (CaC2) reacts with water to produce acetylene (C₂H₂):. CaC2 (s) + 2H2O (g) → Ca(OH)2 (s) + C₂H₂ (g).

The melting point (Tmp) of bromine is approximately 265.8 K, or -7.3 °C.

The melting point (Tmp) of bromine (Br₂) can be calculated using the Clausius-Clapeyron equation, which relates the change in temperature (ΔT) to the enthalpy of fusion (ΔHfus) and the entropy of fusion (ΔSfus) of the substance. The equation is:

ΔT = ΔHfus / ΔSfus

Substituting the values given for bromine, we get:

ΔT = 10.57 kJ/mol / (39.8 J/mol • K) = 265.8 K

Therefore, the melting point (Tmp) of bromine is approximately 265.8 K, or -7.3 °C. This means that bromine is a liquid at room temperature and must be stored under special conditions to prevent it from evaporating.

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The structural formula of a chemical compound is a graphic representation of the molecular structure, which shows how atoms are arranged or spatially distributed. The chemical bonds within the molecule are shown, either explicitly or implicitly.

a) If we look at the structure of propanol then it is having single bonds with one alcohol (OH) group. In such a case, the closest homologues which cab be formed will be ketone and aldehyde.

b) Isomers can be of different types. In this the structural formula is talked about so we will take into account only about the structural isomer. Structural isomer is the arrangement of compound in which the number of bonds and elements remains same but the structure is different. In propanol, the OH group can come in the mid carbon and that carbon can also have a methyl group attached to it.

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Answer:

metal, cottonwool, wool, copper

Explanation:

ATOMIC THEORY

Lesson 1 - Page 5

J.J. Thomson

In 1897, English physicist J. J. Thomson (1856–1940) disproved Dalton’s idea that atoms are indivisible. When elements were excited by an electrical current, atoms break down into two parts. One of those parts is a negative tiny particle, which Thomson called a corpuscle in 1881. The term electron was introduced in 1891 by G. Johnstone Stoney (1826-1911) as a way to describe a “natural unit of electricity.” Thomson envisioned these negative charges embedded into positive charges, like an English plum pudding. The plums were the electrons and the pudding was the positive matter.

Thomson's idea of an atom did not survive very long. English physicist Ernest Rutherford (1871–1937) studied the effects of bombarding thin gold foil with alpha particles. Alpha particles are helium atoms that have lost their electrons and are positive. Rutherford’s model had a nucleus, which occupied a very small area toward the middle, and was positive. He used the term proton for the positive particles. However, his electrons were moving on the outside of the nucleus in no definable manner in his model.

A is Dalton's Model; B is Thomson;

and C is Ruthford's model of an atom

The student collected data on the mass of each artificial cell. The student predicted that the cell in the beaker with 25% sugar solution would have the greatest change in mass after 24 hours. The student's prediction would be correct.

The artificial cell placed in the beaker with 25% sugar solution would likely have the greatest change in mass after 24 hours because of osmosis.

Osmosis is the movement of water across a semi-permeable membrane from an area of high water concentration to an area of low water concentration. In this case, the artificial cell has a semi-permeable membrane that allows water to pass through, but not sugar.

The 25% sugar solution in the beaker is less concentrated than the sugar solution inside the artificial cell, so water will move from the beaker into the cell, causing the cell to swell and increase in mass.

On the other hand, the artificial cells in the beakers with 0% and 12.5% sugar solutions will have less of a change in mass as the solution outside of the cell is more concentrated than inside the cell.

Therefore, the correct answer is as given above

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A 72 kg object moving 25 m/s will require the greatest amount of force

Given

mass of object and the velocity

Required

the greatest amount of force

Solution

Newton's 2nd law :

∑F = m. a  

F = force, N  

m = mass = kg  

a = acceleration due to gravity, m / s²  

Assuming the object is moving from rest (vo = 0) and the time needed to reach its velocity is the same (delta t = equal), it can be formulated:

\(\tt \Sum F=m.\dfrac{v_f-v_i}{\Delta t}\\\\F=m.\dfrac{v_f}{\Delta t}\)

So the force on an object depends on the product of its mass and velocity

Or if we use the impulse and momentum formula

\(\tt F.\Delta t=m(v_f-v_i)\\\\F,\approx m.v_f\)

So that we determine which is the greatest from the multiplication of mass and velocity will produce the greatest force as well

A 72 x 25 = 1800

B. 55 x 32 =1760

C. 75 x 22 = 1650

D.63 x 27 = 1701

Option A has the greatest force

Answer:

[Ne]3s2

Explanation:

ahora tenemos que mirar cada una de las configuraciones electrónicas de cada átomo de cerca antes de tomar una decisión.

considerando la configuración electrónica más externa de cada una de las especies mostradas;

para la primera configuración, ns2 np6 corresponde a un gas noble.

para la segunda configuración ns2 np3 corresponde a un elemento no metálico del grupo 5.

para la tercera configuración, ns2 corresponde a un elemento metálico del grupo 2.

para la cuarta configuración, ns2 np4 corresponde a un elemento no metálico del grupo 6

There is a different way to contribute to the CO₂ budget balance besides reducing or turning off this carbon, which would help reduce the amount of greenhouse gases in the atmosphere. However, that depends on the precise amount of carbon that the oceans, trees, and plants are absorbing.

The carbon sinks in the cycle have so far had plenty of extra capacity. In fact, since we began burning fossil fuels for energy after the Industrial revolution, about half of the carbon dioxide emissions released into the atmosphere have naturally cycled away again.

A quarter of this carbon dioxide dissolves in water, so the oceans have absorbed it. As they used sunlight to turn it into glucose and oxygen during photosynthesis, plants use up an additional quarter.

The airborne carbon that was captured now exists as trees or is buried in peat, grassland, and soils. It is submerged in the water, dissolving in the deep ocean, or drifting as sediment on the seafloor. In other words, the planet has improved.

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2.87 kg will be equal to 2870 grams, when converted using the metric system.

The metric system is a decimalized system of measurement used in many parts of the world. It is based on a decimal system, where the base unit of measurement is the gram. The metric system is the most common system of measurement used in the world today and is used in many scientific and medical applications.

It is based on the decimal system, where units of measurement are based off of a single base unit. It is also easy to convert from one unit of measurement to another, as the conversions are based on multiples of ten. This makes it easier to use and understand and is beneficial in many applications.

In order to convert 2.87 kg to grams, the following steps can be taken:

1. Multiply 2.87 kg by 1000, as there are 1000 grams in 1 kg.

2. 2.87 kg x 1000 = 2870 g

Therefore, 2.87 kg is equal to 2870 grams when using the metric system.

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Answer:

\(50ml=0,05l\\n_H_2SO_4=2.0,05=0,1mol\\mH_2SO_4=0,1.98=9,8g\)

Explanation:

Answer:

Magnesium + Hydrochloric Acid → Magnesium Chloride + Hydrogen

Answer:

The density of the  substance is 1.0611 \(\frac{g}{cm^{3} }\)

Explanation:

The density of a substance is a characteristic property that matter, whether solids, liquids or gases, has to be compressed in a given space, that is, it allows us to measure the amount of mass in a certain volume of a substance.

Density is expressed as follows:

\(density=\frac{mass}{volume}\)

In this case:

Replacing:

\(density=\frac{21.1164 grams}{19.9 cm^{3} }\)

density= 1.0611 \(\frac{g}{cm^{3} }\)

The density of the  substance is 1.0611 \(\frac{g}{cm^{3} }\)

The arrangement of particles in solids allows for their distinctive properties, such as rigidity, shape retention, and high melting and boiling points.

In general, particles in solids are arranged in a closely packed and ordered manner. The arrangement of particles in solids is characterized by three main factors:

Proximity: The particles in solids are closely packed together, with minimal empty space between them. This close proximity contributes to the density and stability of solids.

Regular Pattern: The particles in solids are arranged in a regular and repeating pattern called a crystal lattice. The crystal lattice structure ensures that each particle has a fixed position relative to its neighboring particles.

Strong Intermolecular Forces: The particles in solids are held together by strong intermolecular forces, such as ionic bonds, covalent bonds, or metallic bonds. These forces are responsible for the rigidity and strength of solids.

The specific arrangement of particles in a solid depends on the type of solid and the nature of the intermolecular forces involved.

For example, in crystalline solids, the particles are arranged in a well-defined geometric pattern, whereas in amorphous solids, the particles have a more random arrangement.

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The mass of the piece of wood is 35.58 g.

Joule = M × T × C

Where, M = mass

T = change in temperature(42C-23C=19 C)

C = specific heat capacity = 1.716 joules/gram

Substituting the values in the equation,

1160 = M × 19 × 1.716

M = 1160/32.604 = 35.58 g

Therefore, the mass of the piece of wood = 35.58 g

A material's specific heat capacity, which is defined as its heat capacity divided by its mass, determines how much energy is required to increase a gram's temperature by one degree Celsius (or one Kelvin)

Mass is the quantity of matter in a physical body.

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The heat of fusion of the  substance can be shown from option B.

The amount of heat energy required to transform a substance from a solid phase to a liquid phase at its melting point is known as the heat of fusion, also known as the enthalpy of fusion. The solid-liquid transition is the subject of a particular category of phase transition enthalpy.

The strong intermolecular interactions that keep a substance's particles organized into a solid lattice are dissipated during fusion, allowing the particles to change into a more disordered, fluid state.

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Answer:

labouring kits tub sagot non

Explanation:

games like that in England are not a good thing to do with them in the first half and we are in a kant state that we are going through a difficult situation that will happen and sex.

In order to accurately determine the amount of vitamin C present in a sample, it is necessary to titrate blank samples.

This is because the presence of other substances in the sample can interfere with the accuracy of the results. By titrating blank samples, which are essentially samples without vitamin C, we can determine the amount of interference present in the sample.

This interference can then be subtracted from the total amount of titrant used in the sample to obtain the accurate amount of vitamin C present.

Additionally, blank samples are used to ensure that the titrant and other equipment being used are working properly and are not contaminated. Overall, titrating blank samples is a crucial step in obtaining accurate results in the analysis of vitamin C.

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Answer:

independent variable - the thing you change

dependent variable - the thing you measure

control variables - the things you keep the same

The one does not result in deviations from linearity in a beer's law plot of absorbance versus concentration is light losses at the cell interface.

The Beer's law describes the relationship of concentration and the factor affecting absorbance. the factors affecting the absorbance are : the path length and the molar absorptivity. the straight line equation for beer's law is given as ;

A = εcl

according to beer's law, there will be a linear graph between the absorbance and the concentration.

Thus, The one does not result in deviations from linearity in a beer's law plot of absorbance versus concentration is light losses at the cell interface.

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