1. compare and contrast channel proteins and the classes of carrier proteins (e. g. , uniporter, symporter, and antiporter) including the relative direction of molecule movement and any associated energetic needs. which protein class would nicotinic acetylcholine receptors (nachrs) be associated with?

2. in cardiac muscle, acetylcholine binds to muscarinic acetylcholine receptors (machrs), which are g-protein coupled receptors, which elicit a signal transduction pathway that induces cardiac muscle to relax. outline how g-protein coupled receptors induce signal transduction pathways including relevant secondary messengers.

3. interpret dr. peterson’s statement that active transport is essential for facilitated diffusion of na+ ions to occur in muscle cells. how are na+/k+ pumps involved in this process? sketch a na+/k+ pump indicating conformational changes and energy usage steps and identify ions that are moved during the cyclic process.

4. generally, after neurotransmitters are released in the neuromuscular junction, many of the neurotransmitters or some of their components are recycled by a reuptake mechanism inherent in the pre-synaptic neuron. considering that the reuptake mechanism is often a sodium-dependent process that utilizes membrane potential, what type of membrane transport might you expect to be in play here?

Yes, water is a polar molecule because the Electrons are NOT shared EQUALLY

Answer:

Yes

Explanation:

Water is a polar molecule. Hope this helps.

Answer:

If all the electrons of an atom are removed, it will change to become a positively charged ion called a cation. Additionally, the loss of all of its electrons means there is no negative charge to balance the positive charges of the protons.

Explanation:

Answer:

El aire ingresa al cuerpo a través de la boca o la nariz y se mueve rápidamente hacia la faringe o la garganta. Desde allí, pasa a través de la laringe o laringe y entra en la tráquea.

La tráquea es un tubo fuerte que contiene anillos de cartílago que evitan que se colapse.

Dentro de los pulmones, la tráquea se ramifica en un bronquio izquierdo y derecho. Estos se dividen aún más en ramas cada vez más pequeñas llamadas bronquiolos.

Los bronquiolos más pequeños terminan en diminutos sacos de aire. Estos se llaman alvéolos. Se inflan cuando una persona inhala y se desinflan cuando una persona exhala.

Durante el intercambio de gases, el oxígeno pasa de los pulmones al torrente sanguíneo. Al mismo tiempo, el dióxido de carbono pasa de la sangre a los pulmones. Esto sucede en los pulmones entre los alvéolos y una red de pequeños vasos sanguíneos llamados capilares, que se encuentran en las paredes de los alvéolos.

Aquí puede ver los glóbulos rojos que viajan a través de los capilares. Las paredes de los alvéolos comparten una membrana con los capilares. Eso es lo cerca que están.

Esto permite que el oxígeno y el dióxido de carbono se difundan o se muevan libremente entre el sistema respiratorio y el torrente sanguíneo.

Las moléculas de oxígeno se adhieren a los glóbulos rojos, que viajan de regreso al corazón. Al mismo tiempo, las moléculas de dióxido de carbono en los alvéolos salen del cuerpo la próxima vez que una persona exhala.

El intercambio de gases permite que el cuerpo reponga el oxígeno y elimine el dióxido de carbono. Hacer ambas cosas es necesario para sobrevivir.

Explanation:

The sarcomere is the muscle unit of contraction. Option C) sarcomere size is relatively constant in vertebrates. as a result, mouse and elephant sarcomeres will likely be equal in size.

When talking about a sarcomere we are referring to the contractile unit of the contractile apparatus -muscle-.

In the sarcomere, we can identify the following components,

When the muscle contracts, the muscular fiber gets shorter and thicker due to the reduction in the sarcomere length.

The H line and the I band get shorter. The Z lines get closer to the A band, meaning they get closer to one another. The A band keeps constant in length.

The sarcomere length is about 2 mm during a contraction when actin filaments are completely superposed over the myosin filaments. This length is about the same in all vertebrates.

The correct option is C) sarcomere size is relatively constant in vertebrates. As a result, mouse and elephant sarcomeres will likely be equal in size.

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Answer:

B. As the mass of the chest increases, more force is required to pull it.

Explanation:

Option B is the correct that can be concluded from the data.

From the data, we can see that the mass of the chest is on the increase; it increases from 50, 75, 100, 150 and to 175. Also, in the force column, we can see an increment in the force also; from 0.25, 0.50, 1.15, 1.50 and to 1.70. So, from this data, we discover that as the mass increases, the force needed to pull it increases also.  

Moreover, this is true even logically. If you want to pull an object with a heavy, more force will be required to pull it. Therefore, Option B is the correct answer.

Answer:

The major functions of the circulatory system is it delievers oxygen and nutrients to cells and takes away wastes.

Explanation:

Hope this helps! :)

Although most of our DNA resides inside the nucleus of our cells, a small amount is found in the mitochondria — the organelles that generate energy for cells. In most mammals, mitochondrial DNA is inherited from the mother, while mitochondrial DNA from the father is thought to be destroyed shortly after conception.

Answer: D

Answer:

An observer in space will see that Earth requires 23 hours, 56 minutes, and 4 seconds to make one complete rotation on its axis. But because Earth moves around the Sun at the same time that it is rotating, the planet must turn just a little bit more to reach the same place relative to the Sun.

Answer:

Yes, but actually no.

Explanation:

Since gravity pulls inward from all directions equally, a clump, if big enough, will eventually become a round planet. Inertia then keeps that planet spinning on its axis unless something occurs to disturb it.

To simplify, due to gravity, things will keep spinning until something stops it from spinning (this applies to being in space, I think).

This example shows the feedback system that connects the brain and the endocrine system.

During this process, the hypothalamus secretes gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to release gonadotropins (such as luteinizing hormone and follicle-stimulating hormone).

These gonadotropins stimulate the ovaries to produce estrogen and the testes to produce testosterone. Elevated levels of these hormones act as negative feedback, inhibiting the release of GnRH and gonadotropins, closing the feedback loop.

This process points to the role of feedback systems in regulating hormone production and release. Feedback systems are common in both the nervous and endocrine systems and involve the release of signaling molecules (such as GnRH and hormones) that trigger responses that alter the original signal. In this way, the feedback system helps maintain homeostasis or balance within the body.

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By the age of 1 year, children typically achieve several dressing skill milestones that help them become more independent with self-care tasks.

At this age, children can typically remove a hat or socks, and may be able to take off their shoes with assistance. They may also be able to help with pulling their arms through sleeves and legs through pant holes, although they may still need assistance with fastening buttons or zippers.
Overall, it is important to remember that every child develops at their own pace and may achieve these milestones at slightly different times. Encouraging and praising their efforts can help build their confidence and independence with dressing tasks.
Dressing skill milestones at 1 year include the ability to remove a hat or socks, and with assistance, take off shoes. Children may also be able to help with putting on clothes, pulling arms through sleeves, and legs through pant holes. However, they may still need help with fastening buttons or zippers. It is essential to note that children develop at different rates, and some may reach these milestones earlier or later than others. As parents or caregivers, it is important to offer support and encouragement as children work towards mastering these skills. Praising and rewarding their efforts can help build their confidence and independence with dressing tasks, which are important for daily self-care and overall development.

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Answer:

See the attachment.

Hope u understand

In the given question, 5₹ is the fixed charge and 3₹ is the charge for each extra day.

A fixed charge is a fee or cost that remains constant and does not vary with changes in usage or consumption.

Let the fixed charge for the first three days be x and the charge for each extra day be y.

From the given information, we can set up two equations:

For Saritha: \(\rm 3x + 4y = 27 -----(equation 1)\)  

For Susy: \(\rm 3x + 2y = 21 -----(equation 2)\)

We can solve for x and y by using elimination or substitution:

Using elimination, we can multiply the second equation by 2 and subtract it from the first equation:

\(\rm 3x + 4y = 27\)

\(\rm - (6x + 4y = 42)\)

Solving above equations, we get:

\(\rm -3x = -15\)

\(\rm x = 5\)

Substituting x = 5 into one of the equations, we can solve for y:

\(\rm 3(5) + 4y = 27\)

\(\rm 15 + 4y = 27\)

\(\rm 4y = 12\)

\(\rm y = 3\)

Therefore, the fixed charge is ₹5 and the charge for each extra day is ₹3.

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Answer:

Hazardous type: This type poses potential threats to the environment and human life. Battery wastes from thrown away technology.

Electronic waste or e-waste describes discarded electrical or electronic devices. Used electronics which are destined for refurbishment, reuse, resale, salvage recycling through material recovery, or disposal are also considered e-waste.

A higher absorbance (A670) tells us that the sample on the slide has a higher concentration of stain in the solution. This could mean that the biofilm on the slide is thicker than other samples grown in the same jar.

Sample is a small portion of a larger population used to represent the whole. It is an essential part of the scientific process and is used in many different contexts, including market research, quality control, medical and social science research, and survey research. Sampling is important because it allows researchers to analyze data from a manageable number of individuals and make generalizations about a much larger population.

It could also mean that the sample on the slide has a higher density of cells, indicating a greater proliferation of biofilm-forming bacteria. Alternatively, it could mean that the biofilm on the slide is more highly organized, with more extracellular components, such as proteins and polysaccharides, than other samples.

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Infecting tissue is not an example of how bacteria aid in the nitrogen cycle, so the correct option is D.

The nitrogen cycle is a process in which nitrogen is converted into different forms when it circulates through the biosphere, this can be through biological or physical processes. The nitrogen cycle includes fixation, ammonification, nitrification, and denitrification.

This nitrogen to be able to do this will have to enter through bacteria that converts it into biological forms that can be used, this process is called nitrogen fixation. This nitrogen will then be converted to ammonia and absorbed by plants to generate organic molecules.

Therefore, we can confirm that the correct option is D. infecting tissue.

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Answer: b-7

h-5

i would say tht d-6 but not sure

a-3

e-8

g-4

c-1

f-2

Explanation: not 100% sure but thts what i would say are the right answers srry if they are wrong

Answer:

im guessing white blood cells i have never seen osmosis jones sorry :(

Explanation:

The cells that make up the monkeys in Osmosis Jones are known as White blood cells.

Osmosis may be defined as the process that significantly involves the movement of water from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a semi-permeable membrane.

White blood cells play numerous important functions in the body of each and every living organism. They perform the function of protecting the body against infections. These cells have an important role in inflammation along with allergic responses.

There are two types of white blood cells that are considerably formed in the bone marrow. They are phagocytes and lymphocytes.

Therefore, the cells that make up the monkeys in Osmosis Jones are known as White blood cells.

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The tunica media is the middle layer of blood vessels and is composed of elastic and muscular tissue.

Muscle tissue is generally composed of cells which have the special ability to shorten and contract in order to help in the movement of the body parts. This tissue is highly cellular and it is well supplied with blood vessels.

Connective tissues bind structures together to form a framework which supports organs and the body, store fat, transport substances, protect against disease, and also help repair tissue damage. They occur throughout the body.

Therefore, The tunica media is the middlemost portion of the vessel wall and contains smooth muscle cells and connective tissue. It is the most thickest layer of the three layers of the blood vessels. The tunica media of arteries is generally thicker than veins.

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Answer:

I think it's C. The female parent hemophiliac..eta

but I would wait for a second opinion

c. granulation tissue is another name for a blood clot. Granulation tissue is a highly vascularized mixture of macrophages and fibroblasts embedded in a collagen and fibrin matrix.

It is crucial because it promotes early blood flow and strength to the wound, creates a surface for fibroblasts and epithelial cells to migrate on, and fights off infection. In order to repair the damaged tissues, our body automatically sets into motion a sequence of actions known as the "cascade of healing" when the skin is harmed. Hemostasis, Inflammatory, Proliferative, and Maturation are the four overlapping stages that make up the healing cascade. Inflammation is the initial step in tissue restoration. Injury to tissues causes inflammation.

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Answer:

Inferior venacava is a D vein

Vein is defined has been defined as the blood vessel that carries blood to the heart from tissues and organs in the body.

The arteries, which are three-layered blood vessels, transport oxygen-rich blood from the heart to the body's tissues. The three-layered blood channels known as arteries carry oxygen-rich blood from the heart to the body's tissues.

Collagen and elastic fibres are present in the connective tissues that make up the outer layer, which supports the blood artery. The intermediate layer is composed primarily of elastic fibres, collagen, and smooth muscles.

The flexibility and strength are provided by this layer. The wall may stretch because of its elastic fibres. Because of the smooth epithelial cells that make up the inner endothelium, friction is reduced. In terms of structure, veins and arteries are comparable, with the exception of these three thin and elastic layers.

Therefore, Vein is defined has been defined as the blood vessel that carries blood to the heart from tissues and organs in the body.

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Hemoglobin: The high iron-containing protein in red blood cells (RBCs) is known as hemoglobin. This gives the blood a red color.

It has two main functions: it carries oxygen from the lungs to tissues of the body, and it carries carbon dioxide from cells back to the lungs for excretion.

Functions of hemoglobin:

Consequences of hemoglobin deficiency:

Hemoglobin deficiency reduces the blood's oxygen-carrying capacity.

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Answer:

Explanation:

Through practice of personal hygiene, personal hygiene have been a point of emphasy over the years as one of the major ways to avoid various infection inclusing bacteria infection. Human are likely receptor of infection in an unhealthy and dirty environment and more reason for personal hygiene to reduce it.

The use of antibiotics to prevent various bacterial infection. Many antibactetial drugs have been develop over time to combact the infection from thriving leading to a reduction in the outbreak of the infection.

refrigeration and trash collection

Explanation: took test on edge

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The pest of rice crops is purple witchweed. Thus, option C is correct.

The hemiparasitic plant Striga hermonthica, sometimes known as purple witchweed or giant witchweed, is a member of the Orobanchaceae family. It destroys important crops like rice and sorghum. Along with sorghum and rice, it also infests maize, pearl millet, and sugar cane in sub-Saharan Africa.

Striga hermonthica, a purple witchweed that infests about 40% of the arable land in the savanna region and poses a threat to the lives of over 100 million Africans, is thought to be responsible for a yearly loss of $7 to 13 billion. It almost certainly causes more crop loss in Africa than any other single weed species. In six countries in West Africa alone, over 5 million ha of crops, primarily sorghum, millets, and maize, are affected; it's possible that 10 million ha of crops are affected throughout all of Africa.

Hence, purple witchweed is a pest for rice crops.

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Answer:

False

Explanation:

Answer:false

Explanation:

Primitive traits are more recent and derived traits are more ancient. False. Derived traits are newer.

Evolution is a change in the characteristics of a population of organisms passed down from one generation to the next. Changes that cause evolution are caused by several things such as variation, reproduction, and selection.

In the evolution of organisms, there are two types of traits, namely first, derived traits are traits that have just emerged from new ancestors that give rise to new branches. New properties can be obtained from changes in genes due to mutations or gene transfer between populations and between species. These two primitive traits are traits passed down from distant ancestors hundreds of millions of years ago and have simpler body designs and structures. Therefore it can be concluded, the inherited properties are more recent, and the primitive properties are more ancient.

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Answer:

it is not a life form because it has no cells. The basic building blocks of life is cells so without cells it its not a living organism.

Explanation:

:)

Answer:

D. A warm front brings rain in humid air on occasion, but a cold front brings thunderstorms in summer.

Explanation:

Weather can be defined as the atmospheric conditions of a particular area over a short period of time. Some examples of elements of weather includes clouds, precipitation, air pressure, wind, relative humidity, temperature etc.

In meteorology, precipitation is the end result of condensation of atmospheric water vapour falling under gravity from clouds. Precipitation is rain, snow, sleet, hail, drizzle, pellets, ice and graupel falling from the sky.

A warm front refers to the transition zone or boundary where a mass of cold air is being replaced by a mass of warm air.

On the other hand, cold front refers to the transition zone or boundary where a mass of warm air is being replaced by a mass of cold air

Generally, the weather caused by a warm front compare to the weather caused by a cold front based on the fact that, a warm front brings rain in humid air on occasion, but a cold front brings thunderstorms in summer.

D) A warm front brings rain on occasion, but a cold front brings thunderstorms in summer

Explanation:

A warm front brings gentle rain or light snow, followed by warmer, milder weather. Commonly, when the cold front is passing, winds become gusty; there is a sudden drop in temperature, and heavy rain, sometimes with hail, thunder, and lightning. Lifted warm air ahead of the front produces cumulus or cumulonimbus clouds and thunderstorms.

Plus I got it correct on Edge 2020

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Answer:

False

Explanation:

DNA fragments are negatively charged. In the process of gel electrophoresis, the fragments are drawn through the gel down towards the positive pole of the electric field.

Answer:

No differences!

Explanation:

There are approximately 22 amino acids and whilst the pig can synthesise the majority of these, there are a number it cannot.

Ducks are from bird origin which mainly consists of 22 amino acids.

Therefore there are no differences between amino acid in a pig and duck.