Emphysema causes the walls of the air sacs in the lungs to break down
Explain how this will affect the diffusion of gases into and out of the blood.
Answers
Emphysema is a chronic obstructive pulmonary disease (COPD) that causes the air sacs or alveoli of the lungs to break down. Emphysema causes inflammation and tissue damage that destroys the air sacs, making it difficult for oxygen and carbon dioxide to move in and out of the bloodstream.
The thin walls of the alveoli and pulmonary capillaries allow gases such as oxygen and carbon dioxide to diffuse across them. Emphysema damages the walls of the air sacs, decreasing the surface area available for gas exchange. As a result, less oxygen enters the bloodstream and less carbon dioxide is removed from it. The breakdown of the air sacs also causes the walls of the bronchioles to collapse, making it difficult for air to flow in and out of the lungs.
Emphysema affects the diffusion of gases into and out of the blood by decreasing the surface area available for gas exchange, decreasing the amount of oxygen entering the bloodstream and carbon dioxide leaving it, and trapping air in the lungs.
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Related Questions
A student proposes that the cell types shown here can be classified as to plant,animal,fungal,and bacterial. The student also proposes that an evolutionary relationship can be hypothesized based on the data. What evolutionary relationship and classification is best supported by the data
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Answer:
Cell types I and III are animal and fungal cells, which are most closely related since they are eukaryotic cells that are heterotrophic.
Explanation: ¯\_(ツ)_/¯
sister chromatids sister chromatids are found in cells called primary gametes and contain twice the normal amount of dna. are found in cells called primary gametes, contain twice the normal amount of dna, and occur during ovum formation. occur during ovum formation. are found in cells called primary gametes.
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Sister chromatids are found in cells called primary gametes and contain twice the normal amount of DNA. They also occur during ovum formation.
Primary gametes are the cells that are involved in sexual reproduction. In humans, these cells are called oocytes in females and sperm cells in males. When a primary gamete undergoes the process of cell division called meiosis, it produces four daughter cells, each containing half the number of chromosomes as the parent cell.
During the first phase of meiosis, called meiosis I, the sister chromatids are formed. Sister chromatids are two identical copies of a single chromosome that are held together at a region called the centromere. They are formed when the DNA replicates during the S phase of the cell cycle.
In the second phase of meiosis, called meiosis II, the sister chromatids separate and become individual chromosomes. This results in the formation of four haploid cells, each containing half the number of chromosomes as the parent cell.
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Both the seahorse and the fern have life cycle differences that increase the chance of survival for their offspring. How are their adaptations different?
A seahorse produces a large number of eggs, while a fern produces a large number of spores.
A seahorse produces a small number of eggs, while a fern produces a large number of eggs.
A seahorse produces eggs in water, while a fern produces spores in the shade.
The eggs of a seahorse are spread by water, while the spores of a fern are spread by wind.
Answers
Whereas a fern generates a lot of spores, a seahorse produces an abundance of eggs. A fern produces many eggs, compared to the few that a seahorse produces.
Does a seahorse have milk production?Male seahorses will experience the same things a female does typically when she is pregnant. Prolactin, which is comparable to a hormone that causes pregnant mammals to create milk, is supplied to the eggs by the males.
What happens when a seahorse reproduces?One distinctive aspect of seahorses' reproductive behaviour is the fact that the male bears the fertilised eggs. During a lengthy courtship, the female deposits her eggs into the a brood pouch at the base of a male's tail, where they are later fertilised, using an ovipositor (egg duct).
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In what part of the ocean do you find most marine organisms?
O shallow, coastal waters
O fisheries
O deep ocean waters
O none of the above
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The most marine organisms are found in Shallow coastal water ( A )
Most Marine Organisms live on coastal habitats even though these habitats are about 7% of the total ocean waters. while the majority of the open ocean waters constitute the habitat for about 50 to 80% of life found on earth.
Most marine organisms live in shallow coastal waters because of the accessibility to sunshine and oxygen while the deep ocean waters are always very dark having little access to sunshine almost throughout the years.
Hence we can conclude that most marine organisms are found in the shallow coastal waters of the ocean.
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How does photosynthesis help to balance oxygen and carbon dioxide levels in the atmosphere?
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This process takes in oxygen from the atmosphere and releases carbon dioxide. Photosynthesis – plants produce their own food in the form of glucose using the process of photosynthesis. This process uses sunlight (and so only occurs during the day) to remove carbon dioxide from the atmosphere and release oxygen.
Who is the man known to be responsible for the five basic rules of genetics?
Oliver Mendel
Gregor Mendel
O Gregor Mandela
O Ivan Pavlov
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Answer:
Gregor Mendel
Explanation:
Just search it up lol
50. What neural function i proceed directly by the pinal cord and not the brain?
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Arcs in Reflex. An immediate neural connection to the spinal cord causes this to happen.
You don't have to think about doing these actions since muscles move unconsciously during a reflex without any brain input. Without the involvement of your brain, your spinal cord manages some reflexes and involuntary motions. Although the brain may receive information during a spinal reflex, the spinal cord is ultimately in charge of integrating sensory data and transmitting a response to motor neurons. There are reflexes that go along the cranial nerves and brainstem, known as cranial reflexes.
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42. ______________ is the regulation of an organism’s internal environment tomaintain conditions needed for life.A. HomeostasisB. ReproductionC. Adaptation
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Homeostasis by definition is the capacity of organisms to maintain an inner stable condition, that is to say, is a state of equilibrium between all the organism systems necessary to survive and function properly. reproduction is the process by which new organisms are generated meanwhile adaptation is a trait that increases the organism's fitness and evolve. Therefore we can say that the correct answer is option A.
Answer:
homeostasis
Explanation:
_____ does not use water as an initial electron source for the light dependent reactions
Answers
non-cyclic photophosphorylation pathway does not use water as an initial electron source for the light dependent reactions.
A excited electron is passed through a series of electron carriers after being absorbed by photosystem I, eventually landing in NADP+ to form NADPH. In contrast to the oxygenic photosynthesis pathway this process does not require splitting water molecules in order to produce electrons. A different method of generating ATP and NADPH that does not require the division of water molecules is non-cyclic photophosphorylation.
In this pathway, photosystem I serves as the main electron donor. The electrons are then transferred through a number of electron carriers, such as ferredoxin and the enzyme NADP+ reductase, before being used to convert NADP+ to NADPH.
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in birds and mammals, a vestige of the sinus venosus of the fish heart remains as the sinoatrial node, which serves as a(n) group of answer choices baroreceptor. site of erythropoiesis. inhibitory node. diastole detector. pacemaker. previousnext
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In birds and mammals, the sinoatrial node is a small cluster of specialized cells located in the right atrium of the heart. It is often referred to as the "pacemaker" of the heart because it generates electrical signals. Pacemaker is right answer.
The vestige of the sinus venosus of the fish heart refers to the evolutionary remnants of the fish heart structure that can still be found in birds and mammals in the form of the SA node. The SA node acts as the primary natural pacemaker of the heart, initiating the electrical impulses that regulate the rhythm and rate of the heartbeat. These impulses spread throughout the heart and coordinate the contraction and relaxation of the atria and ventricles, ensuring an efficient and coordinated pumping action of the heart. Other options listed, such as baroreceptor, site of erythropoiesis, inhibitory node, and diastole detector, are not accurate descriptions of the SA node or its function in the heart.
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which vessel is highlighted?internal carotid artery external jugular vein vertebral artery internal jugular vein
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It is an vertebral artery. The brain and spine are supplied with blood through the vertebral arteries there in neck.
The term vertebral describes the location of the arteries along the vertebrae, or spine bones. There are two vertebral arteries that flow through the spinal column, one on each side. A stroke occurs when the subsequent loss of brain function is irreversible (an infarction or brain attack).
A stroke can be caused by a blood clot in the vertebral or anterior artery or by a particle of plaque (embolus) breaking off and traveling downstream, blocking a portion of both the blood supply to the brain. Blood penetrates between vertebral artery layers during a dissection, resulting in decreased blood flow.
This can result in a stroke, headache and vertigo, vision difficulties, and a variety of other neurological problems. The vertebral artery carries blood to the vertebrae of the neck, the upper spinal column, and the region surrounding the exterior of the skull. It also transports blood to two critical areas of the brain: the behind fossa and or the occipital lobes.
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Which of these contribute to the reduction in the population of harvested organisms?
a) harvesters
b) government
c) scientific research
d) all of the above
Answers
Answer:
D
Explanation:
I think I think I think I think
Which of the following would be the response to an animal hearing movement behind it while it drinks water? A: migrating to a new location B: moving from potential danger C: moving toward light D: going into hibernation
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Answer: It Would be B moving from potential danger
Explanation: I think thats its B because its more careful when the animal knows where the predators are.
Pea plant cross: PpYy x PpYy
How many possible allele combinations can each parent produce?
What are they?
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Which of the following does NOT describe the importance of the process of mitosis
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Answer:
Its D i think yea I thinks its d hopefully
Production of gametes from diploid cells exists the correct answer. This is not one of the functions of mitosis.
What is meant by mitosis?Multicellular creatures depend on mitosis to produce new cells for growth and to replace damaged or worn-out cells, such as skin cells. Asexual reproduction in many single-celled organisms is mostly accomplished through the process of mitosis.
When a cell splits into two, mitosis, a type of cell division, ensures that each new daughter cell has the same genomic makeup.
During mitosis, two cells known as daughter cells are produced. The number of chromosomes must remain constant, and any newly formed daughter cells must have genetic material that is similar to that of the parent cell.
After cell division, it aids in keeping the same number of chromosomes in the daughter cells. It is in charge of the expansion and maturation of multicellular organisms. It aids in the healing of broken tissues. It aids in maintaining the right size of the cell.
Therefore, the correct answer is option a) divides the chromosomal number in half.
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how does a virus keep the body from creating antibodies?
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Answer:
it adapts , it starts to create an imunity against anitbodies
(I'm not sure if i am right )
Put the steps of seafloor spreading in order from first to last.
Rock moves outward
A crack forms
Magma hardens
Magma pushes upward
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Answer: a crack forms, magma pushes upward, magma hardens, rock moves outward.
Answer:
image
Explanation:
what do cells do during g1 phase? choose one or more: separate sister chromatids destroy cyclins replicate dna repair dna damage
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During the G1 phase, cells primarily focus on growing and synthesizing proteins needed for DNA replication.
Cells in G1 phase can activate genes needed for cell division and produce cyclins, which help regulate the cell cycle.
They also check for any DNA damage and initiate repair mechanisms if necessary.
Therefore, the "DETAIL ANS" to the question "what do cells do during G1 phase?" is that they grow and synthesize proteins, check for and repair DNA damage, activate genes needed for cell division, and produce cyclins.
The G1 phase is a period of cellular growth and preparation for DNA replication in the subsequent S phase. During this phase, cells are actively synthesizing proteins and organelles, as well as repairing any DNA damage that may have occurred. So, the correct option from the choices provided is "repair DNA damage."
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Which statement correctly identifies the cell type and explains why?
A. This is a plant cell; the evidence is the cell wall.
B. This is a plant cell; the evidence is the nucleus.
C. This is an animal cell; the evidence is the mitochondria.
D. This is an animal cell; the evidence is the cell membrane.
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The cell membrane is a defining feature of animal cells, as it is the outermost layer that encloses the cell and separates it from the external environment. The cell membrane is selectively permeable, meaning it allows certain substances to pass through while preventing others from entering or leaving the cell. Animal cells also have other organelles, such as mitochondria, but these are not unique to animal cells and can also be found in plant cells. The presence of the cell wall, as in statement A, is actually a defining feature of plant cells, not animal cells.
What must happen for the disease to spread from one person to another?
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Which two phases of the moon are expected to come immediately after the phase on August 23?
Answers
Answer:
my name is mister nisegy ok
Explanation:
When food is eaten by an organism, the majority of the energy available from the food is:
Answers
Answer:
Lost as heat
Explanation:
This is the reason why energy and biomass are lost when moving up through trophic levels.
The food transferred from the producers to the consumers is part of the ecological pyramid and food chain. The energy in the food eaten by the organism is lost as heat.
What is energy transfer in the ecosystem?The energy in the ecosystem is available in the form of food that is produced by the producers like the plants and some bacteria. They are called autotrophs.
The animals and other organisms are heterotrophs that depend on the producers for the food in the food chain and web. These consumers receive energy from the producers.
In the ecosystem, only 10% of energy is transferred from one to another level, whereas the remaining 90 % of energy gets lost in the form of heat. The heat is lost as respiration, excretion, etc.
Therefore, the ecosystem follows the 10% energy law.
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Jorge has developed prostate cancer, so he undergoes an operation to remove the malignancy. what other structures will the cancer specialists look at to check for metastasis?
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Neighboring lymph node structures will the cancer specialists look at to check for metastasis.
What is Cancer?When a few of the body's cells develop out of control and spread into other internal organs called cancer.Cancer can appear almost anywhere of the trillions of cells that make up the human body. When the body needs new cells, human cells frequently divide (through a process known as cell proliferation and multiplication). When old cells pass away due to aging or damage, new ones take their place.This methodical procedure occasionally goes wrong, allowing damaged or abnormal cells to proliferate when they shouldn't.These cells have the ability to develop into tumors, which are tissue lumps. Malignant tumors may or may not exist (benign).Learn more about cancer here:
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Sister chromatids differ from nonsister chromatids in that sister chromatids __________.
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Sister chromatids differ from non-sister chromatids in that sister chromatids are two copies of a single chromosome and are products of the S phase of the cell cycle.
When a cell divides, there are two types of chromatids: sister chromatids and non-sister chromatids. During the early stages of cell division, chromatoids are produced. Nonsister chromatids appear during metaphase I of meiosis, whereas sister chromatids replicate from the same chromosome. The centromere links sister chromatids together. On the cell equator, the homologous chromosome pair contains non-sister chromatids. The fact that sister chromatids contain the same allele in the same loci, whereas non-sister chromatids do not, is the primary distinction between the two types of chromatids.
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Lorenzo pushes on a heavy crate with an applied force of 250N at an angle of 30° below the horizontal. The fo friction opposing the applied force is 95 N. If the mass of the crate is 45 kg, what is the acceleration of the crate.
Answers
Answer:
what is the speed and time
which part of the mrna is not modified? all are modified 3' end 5' end the sequences between the 5' and 3' end
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The mRNA molecule is synthesized during transcription with the help of RNA polymerase enzyme. The final product of transcription is pre-mRNA, which has to undergo a modification process before it is transported to the cytoplasm.
During the processing of pre-mRNA into mature mRNA, different modifications occur in mRNA. Given the options; 3' end, 5' end, and the sequences between the 5' and 3' end, the 5' and 3' end of mRNA molecules are usually modified, but the sequence between the 5' and 3' end is not modified. The primary modifications that occur at the 5' and 3' ends of mRNA are referred to as the 5' cap and 3' poly(A) tail.
The 5' cap modification involves the addition of 7-methyl guanosine (m7G) nucleotide to the first nucleotide of the pre-mRNA molecule. This cap provides a binding site for the ribosome, which is essential for translation to occur. The cap also prevents the 5' end of mRNA from being degraded by cellular exonucleases. The 3' poly(A) tail modification involves the addition of many adenine nucleotides (A) to the 3' end of the pre-mRNA molecule. The tail provides stability to the mRNA molecule and protects the 3' end of the mRNA from being degraded by cellular exonucleases. It also assists in the export of mRNA from the nucleus to the cytoplasm.
In summary, the sequence between the 5' and 3' end of mRNA molecules is not modified. However, the 5' and 3' ends of mRNA are usually modified. The 5' cap and 3' poly(A) tail modifications play significant roles in the stability, export, and translation of mRNA.
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6) Look at the picture to the right. Which do you
think are stronger: phosphodiester bonds or
hydrogen bonds? Why ?
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Pig dissection circulatory system terms and functions
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Here are terms and functions of the pig circulatory system:
Arteries: Arteries are blood vessels that carry blood away from the heart.Capillaries: Capillaries are very small blood vessels that allow the exchange of oxygen and nutrients between the blood and the cells.Heart: The heart is a muscular organ that pumps blood throughout the body.Lungs: The lungs are organs that allow the exchange of oxygen and carbon dioxide in the blood.Veins: Veins are blood vessels that carry blood back to the heart.What does the circulatory system do?The circulatory system of a pig is similar to that of a human. It is made up of the heart, blood vessels, and blood. The heart is a muscular organ that pumps blood throughout the body. The blood vessels are tubes that carry blood to and from the heart. The blood is a fluid that contains red blood cells, white blood cells, and platelets.
During a pig dissection, the circulatory system consists of various structures that play essential roles in the transportation of oxygen, nutrients, and waste throughout the body.
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A particular structure within the cell is shown in the model here. Which of these roles would this structure have in the cell?A It transports materials into and out of the cell. B It stores the water and food molecules for the cell. C It passes hereditary information from one generation to the next. D It stores the energy for the cell.
Answers
option(c) is the correct answer.
The nucleus is a membrane-bound organelle that is found in eukaryotic cells. It contains the genetic material of the cell in the form of chromosomes, which are made up of DNA molecules. The primary function of the nucleus is to store and protect this genetic material and to ensure that it is passed on accurately to daughter cells during cell division.
The nucleus is responsible for the transmission of hereditary information from one generation to the next. This is accomplished through a process called DNA replication, which occurs before cell division. During DNA replication, the DNA molecule is copied to produce two identical copies, one for each of the daughter cells. This ensures that each new cell has the same genetic information as the parent cell.
Erwin Chargaff's research determined the percentage of the nitrogen bases within a strand of DNA. His work determined thatthe concentration of adenine is twice the concentration of thymine and the concentration of cytosine is twice the concentration of guanine.the percent of adenine is equal to the percent of guanine and the percent of cytosine is equal to the percent of thymine.the percent of adenine is equal to the percent of thymine and the percent of cytosine is equal to the percent of guanine.the concentrations of adenine, thymine, guanine, and cytosine are all equal.
Answers
Erwin Chargaff's research determined the composition of the nitrogen bases within a strand of DNA. His work determined that DNA composition varies, but the amount of adenine is always the same as thymine and the amount of cytosine is always the same as guanine. Chargaff also found that the composition of DNA varied from one species to another.
We can conclude that the correct answer is:
Answer:the percent of adenine is equal to the percent of thymine and the percent of cytosine is equal to the percent of guanine.