which of the following cells engulf antigens by phagocytosis and present fragments of them on their own surfaces for recognition? which of the following cells engulf antigens by phagocytosis and present fragments of them on their own surfaces for recognition? t lymphocytes nk cells plasma cells dendritic cells
Answers
Dendritic cells are the cells that engulf antigens by phagocytosis and present fragments of them on their own surfaces for recognition.
Dendritic cells are a type of immune cell that acts as a bridge between the innate and adaptive immune systems. They are usually present in tissues in contact with the outside environment, such as the skin, nasal mucosa, and lungs. Dendritic cells capture, process, and present antigens to lymphocytes, activating them and causing an immune response to occur. Antigens are particles that are typically on the surface of pathogens and can elicit an immune response. Phagocytosis is the process by which cells engulf particles and debris to remove them from the body. Dendritic cells are unique because they can detect and engulf antigens, as well as present them to T lymphocytes, which can cause the production of antibodies by plasma cells, and NK cells, which can kill virally-infected cells. So, dendritic cells are the cells that engulf antigens by phagocytosis and present fragments of them on their own surfaces for recognition.Learn more about dendritic cells: https://brainly.com/question/27305384
#SPJ11
Dendritic cells are the cells that engulf antigens by phagocytosis and present fragments of them on their surfaces for recognition, triggering an immune response.
Explanation:The cells that engage in the process of engulfing antigens by phagocytosis and presenting fragments of them on their own surfaces for recognition are dendritic cells. These cells function as antigen-presenting cells (APCs) in the immune system. Their main role is to process antigen material and present it on their surface to other cells of the immune system, thus triggering an immune response. They play a crucial role in initiating the adaptive immune system, where the body responds specifically to an invading microorganism.
Learn more about Dendritic cells here:https://brainly.com/question/31608698
Related Questions
an inherited, progressive disorder of the muscles that affect movement and function is called
Answers
The inherited, progressive disorder of the muscles that affect movement and function is called muscular dystrophy.
A muscular dystrophy is a group of genetic disorders characterized by progressive weakness and degeneration of the skeletal muscles that control movement. It is a progressive disorder that results in muscle weakness and decreased muscle mass. It also causes issues with the heart and breathing muscles as it progresses. Muscular dystrophy is caused by a lack of a protein called dystrophin that helps maintain muscle integrity. In some cases, this lack of dystrophin is inherited, but in other cases, it is caused by a spontaneous genetic mutation. There are several types of muscular dystrophy, with Duchenne muscular dystrophy being the most common and severe form. Other types include Becker muscular dystrophy, limb-girdle muscular dystrophy, and myotonic dystrophy. Treatment for muscular dystrophy varies depending on the type and severity of the disorder.
To learn more about muscular dystrophy here
https://brainly.com/question/27961678
#SPJ11
Where are agglutinogens located
Answers
Answer:
In blood typing, antigens on the surfaces of red blood cells (RBCs) are also known as agglutinogens and the antibodies that react against them are also called agglutinins. Antibodies in the blood are found in the plasma.
I couldn’t fit the whole question in so the last two options are
-Natural disasters are so rare that they have not affected human population very much
-Natural disasters are a concern for human, life and property, but there is nothing we can do to predict them or prepare for them
Thank you! Will mark brainliest
Answers
Answer:
how natural disasters are a concern for human, life and property
Oxygen diffuses into the _______space blood cells and carbon dioxide diffuses out of the _______
A-blood plasma, red
B-none of these
C-Red, blood plasma
D-White, red blood cell
Answers
Answer:
c-red blood plasma
Explanation:
I think helping you
oxygen diffuses into the red blood cells and is carried by hemoglobin. CO2 is carried as carbonic acid in blood plasma.
What happens when molecules lose energy?
Answers
Answer:
Condensation occurs,motion slows down so that it's cohesive force pulls the molecules close but still it have enough energy to break away from one to connect with other molecule and have constant movement
What are three ways that the function of a root is helped by its structure
Answers
Answer:
Subsequently, question is, what are three ways that the function of a root is helped by its structure? A root's four major functions are 1) absorption of water and inorganic nutrients, 2) anchoring of the plant body to the ground, and supporting it, 3) storage of food and nutrients, 4) trans locating water and minerals to the stem.
Explanation:
In addition to absorbing water and nutrients, they also anchor and support the plant and store food.
What are roots?Roots are defined as a vascular plant's subterranean portion. Water and essential minerals are taken up by a plant's roots from the earth and sent to the stem. The plant's roots firmly anchor it to the earth. They first give a plant the anchor it needs to stay put. More significantly, a plant's roots are its life support system because they transport nutrients, water, and air up into the leaves.
The root hairs have a vast surface area, making them ideal for absorbing water from the soil. The absorption increases as surface area increases. There is a semi-permeable barrier on each root hair. Anchoring the plant, absorbing water and dissolving nutrients, transferring them to the shoot, storing nutrients, vegetative reproduction, and binding soil particles are just a few of the crucial roles that roots play in plants.
Thus, in addition to absorbing water and nutrients, they also anchor and support the plant and store food.
To learn more roots, refer to the link below:
https://brainly.com/question/1693262
#SPJ2
13. Given the original DNA strand, which of the following would be the new, complementary strand
of DNA? ACTTACGCCGAT *
(8 Points)
CAGGCATAATCG
ACTTACGCCGAT
TCAATCGCCGTA
TGAATGCGGCTA
Answers
Answer:
TGAATGCGGCTA
Explanation:
The complementary DNA codes for A is T and for G its C
Answer:
TGAATGCGGCTA
Explanation:
Remember these are the complementary dna base pairs
adenine with thymine
thymine with adenine
cytosine with guanine
guanine with cytosine
so a would change to t
c to g
t to a
etc
after pairing each letter we would end up with
TGAATGCGGCTA
Identify the cranial nerves associated with gastrointestinal tract motor output. a. facial
b. vagus
c. glossopharyngeal
d. hypoglossal
e. olfactory
f. trochlear
Answers
The cranial nerves which are associated with gastrointestinal tract motor output is vagas.
What nerves associated with gastrointestinal tract motor?The parasympathetic system exerts its effects primarily through the vagus and pelvic nerves that comprise of lower large intestine, rectum, and anus. The vagus nerve regulates tone and volume by activating the enteric motor neurons.
So we can conclude that the cranial nerves which are associated with gastrointestinal tract motor output is vagas.
Learn more about nerves here: https://brainly.com/question/2114466
protein synthesis definition
Answers
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination.
Answer:
the process by which amino acids are linearly arranged into proteins through the involvement of ribosomal RNA, transfer RNA, messenger RNA, and various enzymes.
Explanation:
If you could take two of Pema’s sperm cells, would the genetic information in them be the same or different? Support your answer with reason(s).
Answers
Answer:should be same
Explanation:
Can someone answer please.
Answers
All of them provide the sticky end because, after the cut, there will be a hanging end at the site, where this enzyme cuts, hence option D is correct.
How restriction enzymes cuts?Restriction enzymes, that cuts the nucleotide sequence at the restricted sites, act as molecular scissors in recombinant DNA technology.
When this enzyme cuts the DNA it creates two ends, a blunt end and a sticky end in the particular sequence. In the sticky end, one strand is longer than the other, while in the blunt end, both strands are of the same length.
Therefore, option D is correct.
Learn more about the restriction enzymes, here:
https://brainly.com/question/15451888
#SPJ1
Which method gives the actual age of a fossil in years?
Answers
Answer:
Radiometric dating methodsExplanation:
Researchers use a clock to estimate the date a rock or fossil was produced in order to ascertain its age. Radiometric dating methods, which are based on the natural radioactive decay of specific elements like potassium and carbon, are widely used by geologists to date ancient events.
OAmalOHopeO
Human cells can use either an aerobic process or an anaerobic process to produce ATP for energy. What determines which cells will use?
Answers
Answer:
Amount of Oxygen available.
Nuclear power is known for producing
large amounts of _?_
pollution.
A. oceanic
B. thermal
C. noise
D. air
Answers
Answer:
B, thermal.
Explanation:
Nuclear power waste a lot of energy through heat.
What makes birds and planes similar and different.?
Answers
Answer:
Airplanes have wings, just like birds. They also have a light skeleton (or framework) to decrease their weight, and they have a streamlined shape to decrease drag. The big difference is that airplanes do not flap their wings.
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.you perform a two-factor cross of two true breeding plants, one with bumpy leaves and stinky flowers (bbff) and one with smooth leaves and unscented flowers (bbff). assume bumpy and stinky are dominant since those are capitalized.
Answers
In the given scenario, you perform a two-factor cross of two true breeding plants, one with bumpy leaves and stinky flowers (bbff) and one with smooth leaves and unscented flowers (bbff). The two-factor cross examines two different traits. One from each parent, that is, bumpy/smooth leaves and stinky/unscented flowers.
Here, bumpy and stinky are dominant because those are capitalized.
The phenotype of the F1 generation will be bumpy leaves and stinky flowers.
This generation will be heterozygous for both traits, that is, BbFf. To determine the phenotype of the F2 generation, the genes from each trait must be examined separately. First, the Bb heterozygotes for leaves are crossed with one another:
Bb × Bb.Bb Bb bB bbB bB bb
Since both B and b are dominant, the phenotypic ratio will be 3 bumpy leaves to 1 smooth leaves. For the second trait, the Ff heterozygotes for flowers are crossed with one another:
Ff × Ff.Ff Ff fF ff
Since both F and f are dominant, the phenotypic ratio will be 3 stinky flowers to 1 unscented flowers.
Therefore, the expected phenotypic ratio of the F2 generation is 9 bumpy/stinky: 3 bumpy/unscented: 3 smooth/stinky: 1 smooth/unscented.
To know more about leaves visit;
brainly.com/question/33352192
#SPJ11
Life appeared 3.5 billion years ago. What was the first life on earth?
Prokaryotic single celled organisms
Eukaryotic single celled organisms
Multicellular organisms
Answers
What can affect the rate of a chemical change?
A. color
B. texture
C. temperature
D. gas bubbles
Answers
all of the following are environmental impacts of commercial farming except
a. over harvesting of ocean fisheries b. contribution to the urban heat island effect
c. dofrestation
d. erosion of top-soil
e. chemical contamination of drinking water
Answers
B) Contribution to the urban heat island effect is not typically considered an environmental impact of commercial farming.
Commercial farming can have significant environmental impacts, including overharvesting of ocean fisheries, deforestation, erosion of topsoil, and chemical contamination of drinking water.
Overharvesting of ocean fisheries can lead to depletion of fish populations and disrupt marine ecosystems. Deforestation is often a result of clearing land for agricultural purposes, which can lead to soil erosion, loss of habitat for wildlife, and increased greenhouse gas emissions. Soil erosion can lead to the loss of topsoil and reduce soil fertility, affecting crop yields and water quality. Chemical contamination of drinking water can occur when pesticides, herbicides, and fertilizers used in farming practices leach into groundwater and surface water sources.
The urban heat island effect is a phenomenon in which urban areas experience higher temperatures than surrounding rural areas due to the absorption and retention of heat by buildings and pavement. While commercial farming can contribute to greenhouse gas emissions and climate change, it is not typically considered a direct cause of the urban heat island effect.
Visit to know more about Heat:-
brainly.com/question/934320
#SPJ11
3. given the genetic code able to translate a nucleic acid sequence into an amino acid sequence
Answers
The genetic code is a set of rules that enable us to translate a nucleic acid sequence into an amino acid sequence. It works by assigning each of the four nucleotides (A, T, C, G) a specific 3-letter codon.
Each codon corresponds to a specific amino acid, allowing us to determine the sequence of amino acids in a protein from a given nucleic acid sequence. The genetic code is a universal code, meaning that any organism from bacteria to humans uses the same codon-to-amino acid mapping.
It is also a degenerate code, meaning that more than one codon can code for the same amino acid. This redundancy provides the genetic code with a high level of robustness, making it easier for organisms to tolerate mutations. The genetic code is also read in triplets, meaning that it is read in sets of three nucleotides at a time.
know more about genetic code here
https://brainly.com/question/29413263#
#SPJ11
complete question is :-
given the genetic code able to translate a nucleic acid sequence into an amino acid sequence. EXPLAIN.
complete the sentence using the word below
Answers
Answer:
During a process called photosynthesis, plants take in carbon dioxide, sunlight ,and water.
Plants make sugar and give off oxygen as a by-product of this process.
Please mark me brainliest if this answer could help, have a great day.
how do the structure of chloroplast support its function?
Answers
Answer:
The structure of the chloroplast is adapted to the function it performs: Thylakoids – flattened discs have a small internal volume to maximise hydrogen gradient upon proton accumulation. ... Photosystems – pigments organised into photosystems in thylakoid membrane to maximise light absorption.
Explanation:
Answer:
A chloroplast is an organelle unique to plant cells that contains chlorophyll (which is what makes plants green) and is responsible for enabling photosynthesis to occur so that plants can convert sunlight into chemical energy.
Explanation:
Heres an image and hopes this helps and brainlest
Which property of water is most responsible for water moving from the roots to the leaves of a plant?.
Answers
Capillary action is the property of water is most responsible for water moving from the roots to the leaves of a plant.
What is Capillary action?Capillary action is the process by which liquids flow in a confined space without support or against external forces such as gravity.Examples of capillary action include the absorption of water by Paris paper and gypsum (two porous materials), the absorption of paint between brush bristles, and the movement of water through sand.This is caused by intermolecular forces between the liquid and the surrounding solid surface. If the tube diameter is small enough, a combination of surface tension (caused by cohesive forces within the liquid) and adhesive forces between the liquid and the vessel wall act to propel the liquid.Cohesion: It is an intermolecular bond of matter that maintains a certain liquid shape due to mutual attraction.Surface tension: This occurs as a result of cohesive forces like molecules binding together to form a surface that is fairly impermeable to water bodies.To learn more about Capillary action from the given link :
https://brainly.com/question/13228277
#SPJ4
why do areas with low altitude have warmer air than higher altitudes
Answers
Answer:
when altitude increase the temprature become low,so that most of higher mountains usually covered by ice
Answer:
the more you go upwards the more temperature will decrease because the amount of oxygen will decrease and about eh low altitude have warm air because the air inside is hot due to the layer of earth with is extremely hot
In the 1940s and 1950s, Dr Barbara McClintock studied mosaic colour patterns in corn and discovered their unstable inheritance and the underlying mechanisms. In 1983 she was awarded the Nobel Prize in Physiology/Medicine for her discovery, and is now considered one of the most influential geneticists of the 20th century. (a) Name two synonymous names for the genetic elements that Dr McClintock discovered
(b) What can these genetic elements do, and what can the consequences be for a gene and for a host genome?
(c) Which gene function do these elements require for their activity, and what are the two classes that these elements can be assigned to, and how do these two classes function in a host genome? (d) Why did Dr McClintock initially find resistance to publish her findings and in the scientific community, to the point that she did not publish these for 20 years, and why were her ground-breaking research findings a paradigm shift in the end?
Answers
They are known by two synonymous names: transposable elements or transposons. These elements can move within a genome and have various consequences for a gene and the host genome.
(a) The two synonymous names for the genetic elements discovered by Dr. McClintock are transposable elements and transposons. These terms refer to segments of DNA that have the ability to move or transpose within a genome.
(b) Transposable elements can have various effects on genes and the host genome. They can insert themselves into a gene, disrupting its function and causing mutations. They can also influence gene expression by inserting near regulatory regions, affecting the level of gene activity. Additionally, transposable elements can cause genomic rearrangements, such as duplications, deletions, or inversions, altering the structure of the genome.
(c) The activity of transposable elements requires specific genes called transposase genes. Transposase enzymes catalyze the movement of transposable elements within the genome. Transposable elements can be classified into two main classes: Class I retrotransposons and Class II DNA transposons. Class I retrotransposons transpose via a copy-and-paste mechanism, where the element is first transcribed into RNA, then reverse transcribed back into DNA and inserted at a new location. Class II DNA transposons, on the other hand, move through a cut-and-paste mechanism, directly excising from one genomic location and reinserting into another.
(d) Dr. McClintock initially faced resistance and skepticism from the scientific community, which led her to withhold publishing her findings for nearly 20 years. At the time, the prevailing belief was that genes were fixed entities with stable positions in the genome. Dr. McClintock's discovery of mobile genetic elements challenged this view and was initially met with skepticism.
Learn more about mutations here:
https://brainly.com/question/13923224
#SPJ11
do these absorb or release carbon? 1.forest fire 2.power plant 3.car 4.land plants 5.land animals
Answers
Answer:
Forest fires- Release
Power plant- Release
Car- Release
Plants- Absorb
Animals- Release
Let me know if this helps!
Answer:
1, 2, 3, and 5 releases carbon
4 is the only one that absorbs
speciation is the divergence of two populations from a common ancestor. how does it contribute to biological diversity?
Answers
The diversity we observe today is the result of new adaptations emerging in the survivors of the extinction. The separation of two populations from a common ancestor is known as speciation. Biodiversity is increased by speciation.
Diversity is increased by speciation. The diversity of organisms within an ecosystem is known as biodiversity. It boosts biodiversity because speciation leads to the creation of new species.
The amount of biological diversity is directly inversely correlated with the pace of speciation. This implies that the diversity of a species will increase as speciation increases. Understanding the evolutionary tendency of any species and re-establishing the different bio-diversities already present on earth are both made possible by speciation.
To know more about adaptations
https://brainly.com/question/13052491
#SPJ4
Which of the following statements is true?
A.
The nitrogen cycle is the most important cycle for life.
b. The oxygen cycle is the least important cycle for life.
C.
Life can be sustained without any of the cycles for life present.
d
All cycles of matter are equally important for life to the sustained.
Please select the best answer from the choices provided
A
B
C
D
Answers
All cycles of matter are equally important for life to the sustained. thus, option D is correct.
What are biogeochemical cycles?Any of the natural processes by which vital elements of living matter are circulated is referred to as a biogeochemical cycle. The term biogeochemical refers to the biological, geological, and chemical elements of each cycle being taken into account.
All cycles matter equally Biogeochemical cycles depend on, and co-evolved with, specific metabolic pathways.
Learn more about the biogeochemical cycle here:
https://brainly.com/question/1422238
#SPJ2
which best describes bacterium?
Answers
Answer:
Bacteria (singular: bacterium) are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids. Hope this helps :))
Explanation:
Answer:
Bacteria are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids.
Explanation: