Give an example that illustrates the involuntary control of cardiac muscle tissue

Answers

Answer 1
There are two types of muscles, voluntary and involuntary. In order to answer this question, you need to know the difference between the two. Voluntary muscles are ones that you can control. For example, by doing a push up or waving your arms around you are using your muscles voluntarily. In contrast, involuntary muscles are ones that you cannot control. You heart contains muscle tissue that cannot be controlled voluntarily. One example that illustrates the involuntary control of cardiac muscle tissue is the shortening in the bands of muscle in your heart, resulting in a decrease in chamber size, which then ejects blood to the pulmonary and systemic vessels.

Related Questions

In the illustration, which site is an example of a trench ?

A
B
C
D

????

Answers

im pretty sure its D i agree with him.

During which phase of the sexual response cycle does the refractory period begin? orgasm

Answers

The Resolution Phase.

What is the main concern with coral harvesting methods?
a.
Coral harvesting methods are not economically profitable.
b.
The coral cannot regenerate quickly enough to recover from harvesting practices.
c.
Organisms that rely on coral are harmed by the methods, even though the coral is not.
d.
The coral is harmed by the methods, even though the organisms that rely on it are not.

Answers

The answer is B. Coral cannot regenerate quickly enough to recover harvesting practices
This will harms both the corals and the organisms that rely on it because many types of organism use corals as a place for protection and as a source of food his will harms both the corals and the organisms that rely on it because many types of organism use corals as a place for protection and as a source of food 

Answer:

One concern I have is the metal frames. I wonder if they could damage the natural coral in the region or if fish and other sea animals could become trapped in them.

Explanation:

PLATO

What is the term that describes the pattern or base pairing in dna?

Answers

It is depicted as Complementary DNA of cDNA. It is frequently utilized as a part of quality cloning or as quality tests or in the production of a cDNA library. At the point when researchers exchange a quality from one cell into another cell with a specific end goal to express the new hereditary material as a protein in the beneficiary cell, the cDNA will be added to the beneficiary , on the grounds that the DNA for a whole quality may incorporate DNA that does not code for the protein or that intrudes on the coding arrangement of the protein.

Final answer:

The term that describes the pattern of base pairing in DNA is 'base complementary rule' where adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C), forming the building blocks of the DNA double helix and ensuring accurate replication and storage of genetic information.

Explanation:

Base Pairing in DNA

The pattern of base pairing in DNA is a fundamental concept that explains how nucleotides bond to each other within the DNA molecule. It refers to the specific pairing of nitrogenous bases: adenine (A) with thymine (T), and guanine (G) with cytosine (C). This is known as the base complementary rule and is critical for DNA replication and genetic information storage. For instance, if one DNA strand has the sequence ATGCCAGT, the opposite strand, following base pairing rules, will read TACGGTCA.

These base pairs are held together by hydrogen bonds, forming the rungs of the DNA double helix. The genetic code within an organism's DNA is determined by the sequence of these base pairs. Moreover, these rules of base pairing enable us to deduce the complementary strand of DNA from one of its strands, an insight first explained by Chargaff's rules.

The specificity of base pairing is not only crucial for the structure of DNA but also plays a key role in DNA replication and transcription processes. This specific pairing creates a reliable system in which the genetic code can be accurately copied and expressed.

The timing of the cell cycle in eukaryotic cells is controlled by a group of closely related proteins known as

Answers

I'm not completely sure, but I think the answer is centrioles. 

Which act addresses abandoned hazardous waste sites with significant contamination?

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The Act which addresses this is THE RESOURCES CONSERVATION AND RECOVERY ACT [RCRA]. The act was passed on October 21, 1976.
The RCRA Act gives the Environmental Protection Agency the power to control hazardous wastes from the moment they are generated to the point when they are finally disposed of. 

Waste solvents are flammable but not toxic true or false

Answers

The statement above is FALSE.
Waste solvents are both flammable and toxic.
Waste solvents refers to the liquid waste obtained from the chemical processes that are performed in a laboratory. Such waste are labelled as hazardous, which means, they are toxic and harmful.

Which is the correct procedure to put out a fire with a fire extinguisher after the pin is pulled?

Answers

aim the fire gauze towards fire

To put out a fire with a fire extinguisher, remember the acronym PASS: Pull the pin, Aim the nozzle, Squeeze the trigger, and Sweep the nozzle from side to side. Following these steps ensures effective fire extinguishing in an emergency situation.

How to Use a Fire Extinguisher

Knowing how to operate a fire extinguisher by following four simple steps can be beneficial and potentially life-saving. The correct procedure to put out a fire with a fire extinguisher after the pin is pulled can be remembered using the acronym PASS.

Pull the pin: This will break the tamper seal and allow you to use the extinguisher.

Aim the nozzle: Point the nozzle or hose at the base of the fire.

Squeeze the trigger: This will release the extinguishing agent.

Sweep the nozzle from side to side: Move across the base of the fire until it is completely extinguished.

These steps ensure that you can effectively and efficiently put out a fire in an emergency situation.

"some __________ neurons are specialized to detect stimuli, whereas __________ neurons send signals to the effectors of the nervous system."

Answers

some afferent neurons are sec specialized to detect stimuli, whereas efferent neurons send signals to the effectors of the nervous system.

Some afferent neurons are specialized to detect stimuli, whereas efferent neurons send signals to the effectors of the nervous system.

What are Neurons?

Neurons may be characterized as nerve cells that significantly sends or receives signal to and from the brain. These cells typically communicated with other cells of the body with the help of a junction which is known as a Synapse.

According to the physiology of the function of neurons, sensory neurons perceive as a set of information or messages from various sense organs like eyes, ears, nose, tongue, and skin and send them directly to the brain.

While the function of motor neurons is understood by the fact that these neurons send the perceived information and messages from the brain to the entire body at the target site.

Afferent neurons carry information from sensory receptors of the skin and other organs while efferent neurons carry motor information away from the central nervous system.

Therefore, some afferent neurons are specialized to detect stimuli, whereas efferent neurons send signals to the effectors of the nervous system.

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State where bile is synthesized and explain the role of bile in digestion and excretion

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Liver secretes bile which is then stored in gall bladder. Bile enters the duodenum via the bile duct. Bile emulsifies lipids, transforming large lumps of lipids into tiny droplets, which provide a larger surface area for digestion. This allow lipid digestion to proceed more rapidly. Bile contains bile acids, which are critical for digestion and absorption of fats and fat-soluble vitamins in the small intestine.Many waste products, including bilirubin, are eliminated from the body by secretion into bile and elimination in feces.

The bile is synthesized and it is secreted from the liver and then stored in gall bladder.

What liver secretes?

Liver secretes bile which has been stored in the gall bladder. Bile enters the duodenum just via the bile duct. Bile emulsifies lipids and transforming the large lumps of the lipids into tiny droplets, which has been provide the larger surface area for the digestion. This has been allow the lipid digestion to the proceed more rapidly.

Bile has been contains bile acids, which are the critical for the digestion and the absorption of the fats and fat-soluble vitamins in the small intestine. Many waste products has been including bilirubin, are the eliminated from the body by the secretion just into the bile and elimination in feces.

Bile aids in digestion by breaking down fats in the small intestine and carrying waste away, making specific proteins for blood plasma. Cholesterol and unique proteins are produced to assist the body in transporting fats. The liver's special ability to produce bile is essential to the organism's existence.

Therefore, The bile is synthesized and it is secreted from the liver and then stored in gall bladder.

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The point where the tibia meets with the femur

Answers

This is the "Tibiofemoral Joint" ( Sorry if this is spelled wrong)

this is the patella i hoped this helped ;)

A cell with a predominance of rough endoplasmic reticulum is most likely ________.

Answers

in active protein translation and folding.

Rough endoplasmic reticulum is called rough because it has many ribosomes on its wall making it look rough. RER is involved mainly in protein production, folding, and quality control. Smooth endoplasmic reticulum is specialised in fats and steroids production. 

Consists of 206 named bones which make up the general framework of the body

Answers

Skeletal system is your answer.

Sperm are released out of the male reproductive system through the ____?

Answers

Basically it's the Urethra

Answer:

urethra

Explanation:

what effect do enzymes have on chemical bonds

Answers

They break it apart and then reform new bonds. This that a good answer?

Enzymes have a direct and significant effect on the chemical bonds during a chemical reaction to a larger extent.

What are Enzymes?

Enzymes may be defined as the types of biocatalysts that remarkably increases the rate of the chemical reaction without itself being consumed in the overall process. It may be thought that all cellular reactions and processes are mediated by enzymes.

Enzymes typically increase the rate of the chemical reaction by lowering its activation energy. Activation energy is a type of energy that a chemical reaction needs in order to initiate the process.

Here, comes the importance of the existence of enzymes. Enzymes usually bind to the reactant molecules and restrict them in such a way that the breaking and forming of chemical bonds occur more readily and efficiently.

Therefore, enzymes have a direct and significant effect on the chemical bonds during a chemical reaction to a larger extent.

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Cells in cardiac muscle are able to contract in a coordinated fashion because of communication made possible through __________.

Answers

Gap junctions, because they are a specialized inter-cellular connection between a multitude of animal cell-types. They directly connect the cytoplasm of two cells, which allows various molecules, ions and electrical impulses to directly pass through a regulated gate between cells.

Which curve shows the course of the reaction in the presence of an enzyme--the black curve or the red curve? Which line represents the activation energy for that reaction--a, b, or c?

Answers

I found the attached image on the internet and it really helps complete this exercise.

First question:
In the presence of an enzyme, the course of the reaction is shown by the red curve. The necessary energy to make a reaction occur is less when there is an enzyme to help the reaction happen. Enzymes work as catalysts that act over substrates converting them into different molecules in a much accelerated way then it would happen without the enzyme's help, if it would happen at all.

Second question:
The activation energy is represented by line B. The activation energy is the energy needed to be available for a reaction to happen. If we compare it with line A, which represents the activation energy necessary for a reaction without an enzyme, we can see how much less energy is necessary to dispend when an enzyme is part of the reaction. Line C represents the energy resultant from the reaction.

Why would it be better to look at living cells than a dead ones?

Answers

In order to see precise cells, living cells are better to observe to get the correct information while dead cells do not do anything and you can't really get information out of it

One of the most crucial methods in cellular and molecular biology is cell culture because it offers a platform for studying the biology, biochemistry, physiology, metabolism, and other aspects of both healthy and diseased cells.

What is the importance of living cell in cell culture?

They have a variety of advantages, such as being cheap, easy to use, providing an infinite supply of material, and not posing any ethical questions with the use of animal or human tissue.

One of the most important tools in cellular and molecular biology is cell culture.

Which offers superior model systems for studying the typical physiology and biochemistry of cells (such as metabolic studies, aging).

The effects of drugs and toxic substances on the cells, and mutagenesis and carcinogenics.

Therefore, In place of primary cells, immortal cell lines are frequently used in research.

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Exercise releases chemicals in our bodies called __________ , which make us feel good.

Answers

Endorphins............................................................

Answer:

Endorphin is released

Explanation:

When we exercise, endorphin is released in the body. Endorphin produces a positive feeling. Due to the release of this chemical, we feel like as if our pain has reduced and hence endorphin fall into the category of analgesics. Endorphin is released by several parts of the body including the brain and spinal cord and bind to the neuron receptor in the same way as a pain medicine does.

Hence, while doing exercise it is the endorphin which is released in the body to make us feel good.

Peristalsis, which is controlled by ____, describes the movement of food along the digestive tract.​

Answers

The process of peristalsis is controlled by Medulla Oblongata, which describes the movement of food along the digestive tract. Esophageal peristalsis is typically assessed by performing an esophageal motility study.

Peristalsis, controlled by the nervous system, describes the movement of food along the digestive tract.

Peristalsis, which is controlled by the nervous system, describes the movement of food along the digestive tract. It is an involuntary muscle contraction that pushes food forward through the esophagus, stomach, and intestines. This coordinated muscular movement allows for efficient digestion and absorption of nutrients.

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A (n)______ is a solid that settles out of a liquid solution in a chemical reaction

Answers

The answer is precipitate.
I believe precipitate is the answer.

why are cheek cells more irregular in shape then that of the onion or elodea cells

Answers

Final answer:

Cheek cells are irregularly shaped because they are epithelial cells that need to conform to the inner surface of the mouth, unlike the brick-shaped onion cells which have a rigid cell wall that contributes to plant structure.

Explanation:

Cheek cells are more irregular in shape than that of onion or elodea cells because they are squamous epithelial cells. Unlike the regular brick-like shape of onion cells, cheek cells are flake-shaped to provide a flexible covering that conforms to the oral cavity. The irregularity in shape allows cheek cells to cover surfaces and adjust, as they are not rigid like plant cells which have a firm cell wall. In addition, cheek cells contain a prominent nucleus that can be stained with methylene blue, which can then be easily observed and identified under a microscope. When preparing wet mount slides of cheek cells, it is important to handle the methylene blue carefully as it will stain skin and clothes and to dry off the slides and coverslips with paper towels. After staining, this enables a clear view of the cell membrane, cytoplasm, and nucleus of the cheek cell. Onion cells, with their uniform shape, create a highly organized structure, which helps in the plant's overall structural integrity.

Directional growth of a plant in response to light is known as

Answers

The answer is Phototropism, this is because the tip of the plant moves towards the light and the auxins make the plant elongate on the side with no light.

Buddha is shown symbolically through a wheel or footprints as well as

Answers

Buddha is shown symbolically through a wheel or footprints as well as Mahayan symbols. The Eight-Spoked Dharma Wheel portrays, In which the Buddha is turning the Wheel of Truth. It is the most important of all the buddhism symbols. Footprints represents the physical presence of Buddha.

Explain how ozone is both beneficial and detrimental to human health

Answers

Answer:

There are both good ozone, and bad ozone. The good ozone help prevent uv rays from entering the earth, preventing skin cancer and other diseases. It is harmful by containing all the pollution and chemicals . That damages our lungs and causes chest pain, coughing, etc.

Explanation:

The first half i wrote, the second half was copied by the person above me.

1. Stratospheric ozone forms a protective layer in the atmosphere that helps in shielding living organisms from the Sun’s harmful ultraviolet (UV) rays and radiation, which causes skin cancer.

2. Ground-level ozone is the constituent element of smog and it is a harmful atmospheric pollutant that damages the lung and other internal organs when its breathed in.

Ozone is also referred to as trioxygen and it can be defined as a colourless, toxic, and unstable inorganic gas that has a pungent smell and it is formed from oxygen by ultraviolet lights.

Basically, ozone can be classified into two (2) main categories based on its benefits and these are:

1. Stratospheric ozone: this is a highly beneficial ozone and as such it is referred to as good ozone.

Stratospheric ozone forms a protective layer in the atmosphere that helps in shielding living organisms from the Sun’s harmful ultraviolet (UV) rays and radiation, which causes skin cancer.

2. Ground-level ozone: this type of ozone is very harmful to the health and life of living organisms. Thus, it is known as bad ozone.

Ground-level ozone is the constituent element of smog and it is a harmful atmospheric pollutant that damages the lung and other internal organs when its breathed in.

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Why are glycoproteins said to be peripheral?

Answers

They are said to be in peripheral because they are in the extracellular side and they are mostly involved with the inter cellular recognition and to be able to protect as they are serves as a protective coat, they also are responsible of maintaining the membrane’s asymmetry.

What stage of cellular respiration occurs after the formation of acetyl-CoA? Electron transport chain Fermentation Glycolysis Krebs cycle

Answers

the Krebs cycle begins after the formation of acetyl-CoA

Answer: Kreb cycle begins after the formation of acetyl-CoA.



Kreb cycle is also called as the Citric acid cycle (CAC) or Tricarboxylic acid cycle (TCA). It is a sequence of chemical reactions used by aerobic organisms for releasing energy by the oxidation of Acetyl CoA.  


In Glycolysis, the oxidation of glucose results in 2pyruvate molecules which are converted to acetyl CoA. The products of the Kreb Cycle for 2 Acetyl CoA processed are



- [tex]6 NADH, 2 FADH_2, 2 ATP, \text{and }4 [/tex] [tex]CO_2[/tex]

The suffix in the medical word hematocrit means​ ________.

Answers

In the word hematocrit, the suffix crit means to separate.

The suffix 'crit' in hematocrit means 'to separate' or 'to judge'.

The suffix 'crit' in the medical term hematocrit is derived from Greek and means 'to separate' or 'to judge'. In the context of a hematocrit test, it refers to the process of separating blood cells from plasma to measure the volume percentage of erythrocytes (red blood cells) present. A hematocrit test involves centrifuging a blood sample to cause the heavy erythrocytes to settle at the bottom of the tube, which allows for a measurement of the proportion of RBCs relative to the entire blood sample. A normal hematocrit value is usually around 45%, and it is a critical indicator of the oxygen-carrying capacity of blood, with low hematocrit values indicating possible anemia.

The average adult aged 19-50 should consume 1000mg per day of calcium.
a. True
b. False

Answers

That statement is true
Calcium is very important in maintaining healthy bone density, strong teeth, and improve muscle contractions.
As we got older, our bones capability to regenerate is decreasing which make it harder for older people's bone to be healed when it's broken., so it is really important to start consuming a required amount of calcium since the early age.

Which of these are true about intraplate volcanism? select the two that apply?

Answers

Looking on the internet I found these two correct options to the question:
"-Intraplate volcanism usually erupts basaltic lava.
Intraplate volcanism occurs both on continental and oceanic landmasses."
Basaltic lava is the most common lava and is composed by the least percentage of silica compared to the other types of lava and that's because of the crust that's in this lava origin. The melting of the mantle is what's in the origin of this lava and that's why intraplate volcanism usually erupts basaltic lava.
Intraplate volcanism is the type of volcanism that takes place within tectonic plates and not plates bounderies. Therefore, it can happen in any plate, whether of continental or oceanic landmasses.

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