In what direction does blood flow through the heart quizlet.
Answers
Blood flows through the heart in a specific direction. Blood is pumped into the right atrium from the body, from the right atrium to the right ventricle, from the right ventricle to the lungs, from the lungs to the left atrium, and from the left atrium to the left ventricle.
The left ventricle then pumps blood out to the body. The left ventricle is the strongest heart chamber, so it has to pump the hardest to get the blood to the whole body. Blood flow through the heart is regulated by heart valves. The heart valves ensure that blood flows in the correct direction through the heart. These valves operate automatically to open and close during the cardiac cycle.The right atrium is the heart chamber that first receives deoxygenated blood from the body. It then passes the blood to the right ventricle through the tricuspid valve. The right ventricle pumps the blood to the lungs through the pulmonary valve. Blood is then oxygenated in the lungs and is passed on to the left atrium through the pulmonary veins. The left atrium then pumps the blood to the left ventricle through the mitral valve.The left ventricle is the strongest chamber of the heart and is responsible for pumping oxygenated blood out to the rest of the body. It pumps blood out to the body through the aortic valve.
The flow of blood through the heart is a well-coordinated process that ensures that the blood flows in the right direction. Heart valves open and close automatically to ensure that the blood flows in the correct direction. Blood flows from the right atrium to the right ventricle to the lungs, from the lungs to the left atrium, and from the left atrium to the left ventricle. The left ventricle then pumps blood out to the body.
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Related Questions
what would happen if the golgi apparatus stopped working
Answers
The Golgi apparatus plays a crucial role in the processing, sorting, and packaging of proteins and lipids within cells. If the Golgi apparatus were to stop working, several important cellular functions would be affected. Here are some potential consequences:
Impaired Protein Sorting: The Golgi apparatus is responsible for modifying and sorting proteins synthesized in the endoplasmic reticulum (ER).
Without a functional Golgi apparatus, proteins would not undergo necessary modifications such as glycosylation, phosphorylation, or addition of lipids. This could lead to misfolded or improperly sorted proteins, affecting their functionality.
Disrupted Vesicle Formation: The Golgi apparatus is involved in the formation of vesicles, small membrane-bound sacs that transport molecules within the cell.
These vesicles carry proteins, lipids, and other molecules to their specific destinations. If the Golgi apparatus is not functioning properly, vesicle formation and trafficking would be disrupted, leading to cellular transport defects.
Altered Lipid Metabolism: The Golgi apparatus is involved in lipid metabolism, including the synthesis and modification of lipids. Without a functional Golgi apparatus, the processing and distribution of lipids within the cell would be compromised.
This could impact membrane integrity, signaling pathways, and cellular functions that rely on lipid components.
Disrupted Secretory Pathway: The Golgi apparatus plays a central role in the secretory pathway, where proteins are packaged into vesicles and transported to the cell surface or other organelles.
If the Golgi apparatus malfunctions, secretion of proteins and other molecules would be affected, leading to reduced or altered secretion. This could impact intercellular communication and the release of essential molecules.
Cellular Stress and Dysfunction: The malfunctioning of the Golgi apparatus could induce cellular stress due to the accumulation of misprocessed proteins, disrupted lipid homeostasis, and impaired transport pathways.
This stress may trigger cellular responses such as the unfolded protein response (UPR) and ultimately lead to cell dysfunction, apoptosis (programmed cell death), or cell survival strategies depending on the severity of the damage.
It's important to note that the consequences of a non-functioning Golgi apparatus can vary depending on the extent and duration of the dysfunction, as well as the cell type and its specific requirements.
Overall, the loss of Golgi apparatus function would severely impact cellular processes involved in protein sorting, vesicle formation, lipid metabolism, secretion, and overall cell homeostasis.
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9. A human can be considered an ecosystem.
True
False
Answers
Answer:
True
Explanation:
The human body is also an ecosystem. There are trillions tiny organisms living in and on it. These organisms are known as microbes and include bacteria, viruses, and fungi.
Answer:
True.
Explanation:
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When a patient is given chemotherapy to rid the body of cancer, the drugs target cells that divide quickly. Which other body cells (somatic cells) would
be most affected by this?
a. Brain Cells
b. Hair Cells
c. Muscle Cells
d. Heart Cells
Answers
Answer
B. Hair Cells
Explanation
Why chemotherapy causes side effects
The fact that chemotherapy drugs kill dividing cells helps to explain why chemotherapy causes side effects. It affects healthy body tissues where the cells are constantly growing and dividing, such as:
your hair, which is always growingyour bone marrow, which is constantly producing blood cellsyour skin and the lining of your digestive system, which are constantly renewing themselves
6) What new thing have you been doing to stay stress-free and positive during the pandemic?
Answers
Answer:
Close my eyes an play calming music of nature and relax and feel like in nature and there is nothing else to stress about
Explanation:
Answer: I've been reading books, cleaning my room and listening to podcasts and music!
can anyone please answer this question for me its almost the end of the day
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most genetic diseases tend to be recessive. why is that?
Answers
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place the following in increasing order: bacterium, atomic nucleus, red blood cell,cellular nucleus,thickness of plasma membrane, carbon atom
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Answers
Answer: bacterium, nucleus, secretory granule, red blood cell, human ovum, eukaryotic cell, thickness of plasma
Explanation:
1) List 10 ways that energy is used in your home or outside of your home.
2) Now, imagine yourself having surgery in a hospital and the power goes out. What could be done that the surgery could continue?
Answers
Answer:
There are many ways to save energy at home some are as following:-
1)Use Led Bulbs rather than Tubelight
2)Using Heater or Air Conditioner uses a lot of energy so we should reduce there usage
3)If possible, install a programmable thermostat to automatically adjust your home's temperature settings when you're away or sleeping.
4)Use a bucket of water rather than taking a shower
5)During Winter season use suns heat to heat up your body rather than using heater at day time
6)Save water by scraping dishes instead of rinsing them before loading in the dishwasher
7)Close the tap when not in use
8)While brushing tour teeth, use utensils to clean your mouth rather than using a tap
9)The water you use to mop the floor can we used to water the plant or even clean your car
10)Dont use dryer to dry your cloth rather put it in under sun
Explanation:
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Chuck just moved to Florida from Texas, and is applying for his Florida real estate license. However, Chuck's background check turns up an investigation for fraud back in Texas. What does this mean for Chuck
Answers
Chuck, who just moved to Florida from Texas, and is applying for his Florida real estate license may face some difficulties in acquiring his license if his background check turns up an investigation for fraud back in Texas.
If the investigation for fraud turns out to be true, then Chuck will likely face more significant consequences and penalties under the law.In order to be a licensed real estate agent in Florida, the Florida Department of Business and Professional Regulation requires individuals to be of good character, be honest, trustworthy, and possess good business ethics. If the Florida DBPR uncovers information regarding a real estate applicant's past criminal record, they will evaluate the severity of the offense(s) and determine if the candidate should be licensed. Even if the candidate is permitted to be licensed, they may have limitations on the type of license they can obtain or may be required to operate under the supervision of another licensee, for instance. Chuck may be denied his Florida real estate license or may be required to fulfill additional requirements such as appearing before a committee or providing additional information.
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Explain life cycle of bryophytes with example?
Answers
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Explanation:
Yes it is your answer I think it will help you
A biologist recorded a count of 516 bacteria present in a culture after 10 minutes and 1136 bacteria present after 20 minutes To the nearest whole number, what was the initial population? bacteria TIP Enter your answer as an integer or decimal number. Examples: 3,-4,5.5172 Enter DNE for Does Not Exist, oo for Infinity Get Help: Written Example Points possible: 1 This is attempt 1 of 3 Post this question to forum Submit DOLC If the population doubles every six minutes, then it doubles 10 times every hour, so the model is: P(t) = 5 - 2104 After 2 hours: P(t) 5.2106 P(2) = 5.210-2 P(2) 5. 220 P(2) 5242880 Alternatively, we can solve it in a different way by using the formula f(t) = Ageht. First note that if it doubles 10 times every hour, then after 1 hour there will be 5120 bacteria. Now solve for k: 5120 = 5e" 1024 = el k 6.9315 So the model is: f(t) = 526.93154 After t hours: P(2) — 56.9315-2 P(2) = 5e13.863 P(2) 5.1048635.1296 P(2) 5243175.6
Answers
Explanation: The Germ Theory.
what are some three new things about slavery
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A cross section of tissue layers from a whale is shown above. The thick layer of blubber insulates the whale against the extremely cold waters the whale inhabits. What class of biomolecule makes up this blubber layer?
Answers
The blubber is an adipose tissue that insulates the animals body, keeping its interior warm and avoiding heat loss. The biomolecules that make up this blubber layer are LIPIDS.
That is the function of blubber in cetaceans?Bubbler is a thick layer of fatty tissue covering cetaceans' bodies. Its main function is to insulate the animals from the environmental conditions in which they live.
Deep diver individuals are exposed to extremely low temperatures. To survive in these conditions, cetaceans have developed different strategies. One of them is having the bubbler.
This adipose tissue keeps the animal's interior warm enough to accomplish its physiological functions. Besides, it lets the outermost skin layer be as cold as the environment to avoid losing heat.
The composition of the blubber might vary among cetaceans. All of them are composed of lipids, but their lipidic nature might vary. Some of them exhibit more triacylglycerols, while others wax esters.
Besides, fatty acids are stratified through the tissue.
The biomolecule that makes up this blubber layer is LIPID.
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Which of the following statements is TRUE of both aerobic and anaerobic respiration (fermentation)? Both produce NADH as high-energy intermediates. Both use glycolysis to oxidize glucose to pyruvate and both produce NADH as high-energy intermediates. Both produce NADH as high-energy intermediates and both produce either lactic acid or ethanol as a byproduct. Both use glycolysis to oxidize glucose to pyruvate.
Answers
Both use glycolysis to oxidize glucose to pyruvate.Aerobic respiration is a metabolic process that requires oxygen. It is the process in which cells utilize oxygen to burn food and produce ATP for energy. Aerobic respiration produces energy for cell activities, such as cell division, DNA replication, protein synthesis, and muscle contractions. Aerobic respiration has three stages: glycolysis, the Krebs cycle, and oxidative phosphorylation.
Anaerobic respiration is a metabolic process that does not require oxygen. It is a process in which cells burn food to produce energy without the need for oxygen. Anaerobic respiration takes place in the cytoplasm of the cell. It is the process that some cells, such as yeast cells, use to produce energy. During anaerobic respiration, cells use glycolysis to break down glucose into two molecules of pyruvic acid, which are then converted into other molecules.
In the absence of oxygen, pyruvic acid is fermented to produce either lactic acid or ethanol.Both aerobic and anaerobic respiration use glycolysis to oxidize glucose to pyruvate, so option 4 is correct. Option 1 and 3 are incorrect because only anaerobic respiration produces either lactic acid or ethanol as a byproduct. While, option 2 is incorrect because, although both aerobic and anaerobic respiration produce NADH as high-energy intermediates, they produce ATP differently.
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Which of the following are functions of the proximal convoluted tubule (PCT)? More than one answer may be correct. reabsorb nutrients reabsorb water adjust the pH of the filtrate remove toxins filter waste from the blood reabsorb ions
Answers
The functions of the proximal convoluted tubule (PCT) include:
Reabsorb nutrients, Reabsorb water, Reabsorb ions and Filter waste from the blood.
The proximal convoluted tubule's (PCT) functions include:
Reabsorb nutrients: The PCT returns the bulk of the bloodstream's supply of glucose, amino acids, and other nutrients from the filtrate.Reabsorb water: In order to keep the body's fluid balance in check, the PCT reabsorbs a significant proportion of water from the filtrate.Remove waste from the blood: The PCT is essential in the removal of wastes from the body, including urea and creatinine, from the blood.Reabsorb ions: The PCT returns a variety of ions to the bloodstream, including sodium (Na+), potassium (K+), and chloride (Cl-).To know more about proximal convoluted tubule, visit:
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Complete Question:
Which of the following are functions of the proximal convoluted tubule (PCT)? More than one answer may be correct.
reabsorb nutrients reabsorb water adjust the pH of the filtrate remove toxins filter waste from the blood reabsorb ionsI will give brainliest to the first person to answer
Answers
In order to be categorized as a bilaterian, the organism must display bilateral symmetry in: Its nervous system At least one of its life stages All of its life stages None of its life stages
Answers
In order to be categorized as a bilaterian, the organism must display bilateral symmetry in "all of its life stages".
Bilateral symmetry means that the organism can be divided into two equal halves along a central axis, with identical structures on either side. This symmetry is reflected in the organism's nervous system, which is organized around a central nerve cord with paired ganglia and nerves extending to each side. The term 'bilaterian' refers to a diverse group of animals, including insects, mammals, reptiles, and many others, all of which share this fundamental feature of bilateral symmetry.
Therefore, "all of its life stages" is the correct option.
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Explain why Euglenozoa cannot be classified as either plants or animals?
Answers
Euglenozoa are monophyletic group of flagellated protists as well as free-living, symbiotic, and parasitic species. According to genetic studies, Euglenozoa are meither plant nor animal despite the suffix zoa. They are somewhat the living dependent of a few of the primal unicellular organisms called eukaryotes. It is also a genus of unicellular flagellate protists where the word "unicellular" means that the organism consists of one cell only that's why they're not considered plant or animals.
what is occurring when the dot disappears? in your explanation, include the anatomical term for the part of the eye responsible for the phenomenon and describe why this anatomical part causes this effect
Answers
Because the optic nerve is not light sensitive, the optic disk is a blind region. When you focus on the optic disk, the black dot you drew'disappears. The optic disk is now very close to another vital component of your retina known as the fovea.
Scotoma, or blind spot, is an obscuration of the visual field. A physiological blind spot, also known as a "blind point," or punctum caecum in medical literature, is a location in the visual field that corresponds to a lack of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve passes through.
Because the optic disc lacks light-detecting cells, the corresponding area of the field of vision remains invisible.
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1. ) The cell is normally more ___ on the inside and more _____ on the outside. This voltage difference is maintained by the ___. 2. )If enough ions move to exceed the ___, an ___ can be generated that causes a change in the membrane potential big enough to conduct a signal.
Answers
The cell is normally more negative on the inside and more positive on the outside. This voltage difference is maintained by the cell membrane.
If enough ions move to exceed the threshold, an action potential can be generated that causes a change in the membrane potential big enough to conduct a signal.
The statement refers to the resting membrane potential of a cell. The inside of the cell is negatively charged relative to the outside due to an uneven distribution of ions across the cell membrane. This voltage difference is maintained by various ion pumps and channels present in the cell membrane.
When a stimulus is strong enough to depolarize the cell membrane beyond the threshold level, an action potential is triggered. This depolarization involves a rapid influx of positively charged ions, such as sodium (Na+) ions, into the cell. The action potential propagates along the cell membrane, allowing the transmission of signals in neurons and other excitable cells.
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Imagine you are a red blood cell sitting in the right atria of the heart. In your laboratory journal, write a paragraph that describes what happens to this red blood cell as it moves through the body. What structures will it pass through?
How will it interact with oxygen? Think back to Unit 3 and make sure to include the word hemoglobin in your response.
Answers
Answer:
Right atrium -----> Atria contracts and passes through the tricuspid valve -------> Now in right ventricle ------> Ventricles eventually contract and now blood goes past pulmonary valve into the pulmonary trunk into pulmonic circulation where gas exchange occurs in the alveoli and CO2 is exhaled & released from the carboxyhemoglobin portion of hemoglobin and O2 inspired and binds to one of the alpha/beta chains of hemoglobin ---------> Blood now returns via pulmonary veins and ends up in the left atrium ----------> atria contract and blood passes the mitral valve ----------> blood now in the left ventricle -----------> left ventricle eventually contracts and blood passes through the aortic semilunar valve into the aorta to go out into systemic circulation.
Explanation:
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Which organelle is responsible for packaging and sending out proteins to their proper destinations?
Choose 1 answer:
Lysosome
Golgi body
С
Mitochondria
D
Nucleus
Answers
You see smoke coming out of the computer which safety equipment is best to use
Answers
Surrounding the pyloric orifice is a thick ring of circular smooth muscle called the pyloric: a) Sphincter b) Valve c) Atrium d) Sinus
Answers
Surrounding the pyloric orifice is a thick ring of circular smooth muscle called the pyloric sphincter. The correct option is a) Sphincter.
The pyloric sphincter is a ring of circular smooth muscle located around the pyloric orifice, which is the opening between the stomach and the small intestine. The function of the pyloric sphincter is to regulate the passage of food from the stomach into the small intestine. When the stomach is full and the food is properly digested, the pyloric sphincter relaxes and opens up to allow the food to pass into the small intestine. However, if the food is not properly digested or the stomach is not yet empty, the pyloric sphincter will remain closed to prevent the food from passing into the small intestine prematurely.
Overall, the pyloric sphincter is an important component of the digestive system, ensuring that food is properly digested and passed along through the digestive tract. The other terms mentioned, such as valve, atrium, and sinus, are not associated with the pyloric orifice and its surrounding circular smooth muscle.
Therefore, the correct answer is a) sphincter.
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1) compare all three states of matter to the
right. Which square has the greatest density
and why? And why is it correct?
Answers
Answer:
A
Explanation:
it has more matter in given area, so it is denser.
What configuration do atoms usually take by forming covalent bonds?
Answers
Describe the main events that take place inside your body in order to turn a meal into simple food molecules
Answers
Answer:
amylase and other carbohydrase enzymes break down starch into sugar.
protease enzymes break down proteins into amino acids.
lipase enzymes break down lipids (fats and oils) into fatty acids and glycerol.
Explanation:
need help! will give brainly! no points answers plz
Answers
Answer:
The correct answer is -
gly-met-arg-phe-val-pro
Explanation:
The production of the amino acid chain or sequence from the desired DNA sequence is called the protein synthesis or central dogma that involves two processes, transcription and translation. Transcription is the process of transcribing the information encoded in the DNA sequence into a complementary mRNA sequence. The translation is the second process that involves the translation from mRNA to a specific amino acid.
mRNA sequence is complementary to the DNA
so, DNA - CCC-TAC-CGC-AA-CG-CC
mRNA - GGG-AUG-CGC-UUU-GUC-GG
and amino acid from the chart : gly-met-arg-phe-val-pro
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Answers
RR (round peas) and rr (wrinkled peas), The heterozygous peas have genotype Rr which when crossed will have RR, Rr, Rr and rr. Therefore, 50% of the off springs will be heterozygous.
What is a punnett square?
The genotypes of a certain cross or breeding experiment are predicted using the Punnett square, a square diagram. It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a certain genotype.
When two heterozygotes are crossed, the anticipated genotype ratio is 1 (homozygous dominant): 2 (heterozygous): 1. (homozygous recessive) or 1:2:1.
R r
R RR Rr
r Rr rr
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What type of sustainable development encourages enjoyment and conservation of biodiversity and habitats?
a.
Solar energy
c.
Ecotourism
b.
Organic farming
d.
Wind farming