In 246 consecutive nasopharyngoscopy examinations, patterns of velopharyngeal (VP) valving and the location of velopharyngeal gaps were examined.
Velopharyngeal: What is it?Normal speech production depends heavily on the velopharyngeal valve. The structures that make up this valve are as follows:
Velum (also called soft palate) The side walls of the throat are called lateral pharyngeal walls. The back wall of the throat is known as the posterior pharyngeal wall.The coronal pattern of closure predominated (68%) and was followed by circular (23%), circular with a Passavant's ridge (5%) patterns, as well as sagittal (4%) patterns. In 181 patients, gaps were discovered, in 121, they were deemed typical (centrally located), in 28, they were in one of the lateral aspects of the valve, and in 32, they were attributed to abnormalities in the anatomy or function of the posterior border of the soft palate or to the shape of the adenoid tissue. Patients with a coronal valving pattern tended to have abnormal results. These findings highlight additional concerns regarding the care of patients with unusual valving issues.
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What is produced during the light-independent reactions of photosynthesis?
Answer:
Light-independent reaction is a series of biochemical reactions in photosynthesis not requiring light to proceed, and ultimately produce organic molecules from carbon dioxide. The energy released from ATP (produced during the light reactions) drives this metabolic pathway.27-Jan-2022
Purpose: Utilize stored chemical energy for carbon dioxide fixation and form glucose ...
Site of Reaction: Stroma of Chloroplast
Input: ATP, NADPH, CO2
Output: G3P, ADP, NADP+
what is the energy needed to start a chemical reaction called
Activation energy
Explanation:Activation Energy is the minimum amount of energy needed to start a chemical reaction.
A chemical reaction consists of different atoms, molecules, or compounds that arrange themselves to create new compounds.The chemical reaction contains reactant molecules that produce product molecules.The minimum amount of energy that is required to start any chemical reaction is called activation energy.This is because some amount of energy is always needed to initiate the reaction whether it is exothermic or endothermic.The exothermic reaction also involves some activation energy to initiate the reaction, and later it releases this energy.Activation energy can be affected by the nature of the reactant and the effect of the catalyst.The unit of activation energy is KJ/mol.microorganisms occur everywhere in nature and have several requirements to grow. what is one of these requirements? select all that apply
Microo rganisms occur everywhere in nature and have several requirements to grow will be food, moisture, darkness and suitable temperature.
Microorganisms can live in hott-er and colder temperatures than humans, but they do best in a warm, moist, protein-rich environment that is pH neutral or slightly acidic. Cellular microbes replicate a sex-ually and/or sex-ually
The smallest microorganisms, measuring between 0.0001 mm as well as 0.001 mm, were bacteria. Prot ozoa including phytoplankton have sizes ranging from 0.001 mm to 0.25 mm. The largest protozoa and phytoplankton can only be observed with the nak-ed eye. The majority are only visible under a microscope.
The question is incomplete, the complete question is:
Microorganisms occur everywhere in nature and have several requirements to grow , What is one of these requirements.
(a) food,
(b) moisture,
(c) darkness and suitable temperature.
(d) all of these
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what are things Animal Cells have Only
Answer:
Animal cells have centrosomes (or a pair of centrioles), and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.
Explanation:
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Explain the role of lipids, carbohydrates, and proteins in the cell membrane.
Ready? Enter your answer here.
III
Lipids provide structure - allow the selective diffusion. Proteins provide structure - involved transport - involved in cell adhesion. Carbohydrates are involved in cell recognition - receptor complexes.
What is the function of lipids, carbohydrates, and proteins in the cell membrane?The cell membrane is composed of a lipidic bilayer, cholesterol, proteins, and glucans incrusted in between.
⇒ Lipids
Phospholipids are amphipathic molecules.They have hydrophilic heads facing the exterior and the interior of the cells and hydrophobic tails that arrange against each other in the interlayer space.Lipids can easily change places with other lipids by lateral diffusion and transversal diffusion. Their function is to provide structure to the membrane and allow the diffusion of some selected small molecules.⇒ Cholesterol
These lipidic molecules play a significant role in membrane formation and structure. They are embedded in the membrane in between phospholipidic tails.
⇒ Carbohydrates
Carbohydrates are significant energy store molecules.
Carbohydrates get attached to lipids and proteins on the outer side of the membrane (glycolipids and glycoproteins).
Complexes protein-carbohydrate are used to identify and differentiate the cell and work as receptors.
Carbohydrates are also involved in cell adhesion.
⇒ Proteins
Among the proteins, we can find integral proteins and peripheric proteins.Integral proteins are permanently associated with the membrane. They accomplish many different functions such as substances transport, cellular receptors, and cellular adhesion, among others.
According to how they are incrusted in the lipidic bilayer, integral proteins might be,
→ Transmembrane proteins ⇒ they cross the two lipid layers of the cell membrane.
→ Monotypic integral proteins ⇒ they can be found tied to one of the lipidic layers.
Integral proteins provide structure to the plasmatic membrane.
Periferic proteins are in the internal or external surface but not incrusted in the membrane.
In conlusion,
Phospholipids are the basic elements of the cell membrane. They are arranged in two layers, and thanks to their motion properties, they allow passive transport (diffusion) of some substances.Proteins provide structure, are involved in facilitated and active transport, and are involved in cell adhesion. Carbohydrates are involved in cell recognition and in receptor complexes.You can learn more about membrane composition at
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eschenhagen t, fink c, remmers u, scholz h, wattchow j, weil j, zimmermann w, dohmen hh, schäfer h, bishopric n, wakatsuki t, elson el. three-dimensional reconstitution of embryonic cardiomyo- cytes in a collagen matrix: a new heart muscle model system.
A method has been developed for culturing cardiac myocytes in a collagen matrix to produce a coherently contracting three-d model coronary heart tissue that lets in direct size of isometric contractile force. Embryonic chick cardiomyocytes have been blended with collagen answer and allowed to gel between two Velcro-coated glass tubes. During culture, the cardiomyocytes shaped spontaneously beating cardiac myocyte-populated matrices (CMPMs) anchored at opposite ends to the Velcro-covered tubes thru which they ought to be attached to a force measuring system. Immunohistochemistry and electron microscopy printed an exceedingly prepared tissue-like shape of alpha-actin and alpha-tropomyosin-positive cardiac myocytes exhibiting normal cross-striation, sarcomeric myofilaments, intercalated discs, desmosomes, and tight junctions. Force measurements of paced or unpaced CMPMs have been carried out in organ baths after 6-11 days of cultivation and have been steady for up to 24 h. Force elevated with a frequency between 0.8 and 2 Hz (positive "staircase"), growing relaxation length (Starling mechanism), and growing extracellular calcium. The utility of this system as a check bed for genetic manipulation was established by infecting the CMPMs with recombinant beta-galactosidase-carrying adenovirus. Transduction effectivity improved from about 5% (MOI 0.1) to about 50% (MOI 100). CMPMs show extra physiological traits of intact coronary heart tissue than monolayer cultures. This approach, easier and faster than the era of transgenic animals, permit practical consequences of genetic or pharmacological manipulation of cardiomyocytes in vitro to be studied under highly controlled conditions.
Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. This may be abundant in some tissues and minimal in others.
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28 points and brainliest hurry!!
The movement of plates at a divergent boundary-
O Move up and down
O Move away from each other
O Move towards each other
O Form mountains
Answer:
They move away from eachother.
Explanation:
Took the test
Why are sex linked disorders most often seen in males
If you were given five unknown substances and we’re asked to describe them by their physical properties what would you work for what should you not do while observing their physical properties
Answer: do not touch
do not smell
and don't play with it
Explanation:
A scientist goes on an expedition to Greenland and finds an unknown organism. She then analyzes the DNA and confirms that the strand she has contains 1000 total nitrogenous bases. She continues to analyze it further and realizes the strand has 200 adenines. She needs to determine how many cytosines exist in that sample.
Answer:
800
Explanation:
1000-200
Why is it so difficult to design an effective experiment regarding Big Foot?
It so difficult to design an effective experiment regarding Bigfoot because the Bigfoot debate hasn't been approached scientifically by the believers.
What is bigfoot?
Bigfoot, often known as Sasquatch, is a supposedly ape-like creature that lives in North American woodlands.
In an effort to establish the reality of Bigfoot, numerous dubious articles have been put forth, including anecdotal accounts of sightings as well as supposed video and audio recordings, pictures, and casts of huge footprints. Some are blatantly or openly hoaxes. There are legends of wild, hairy humanoids around the world, and these monsters also figure in North American mythology, including the mythologies of the native population. Bigfoot is a recognizable figure in the outlawed field of cryptozoology and a steadfast part of culture.
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jansman, a. j., verstegen, m. w., huisman, j., and van den berg, j. w. 1995. effects of hulls of faba beans (vicia faba l.) with a low or high content of condensed tannins on the apparent ileal and fecal digestibility of nutrients and the excretion of endogenous protein in ileal digesta and feces of pigs. j. anim. sci. 73:118–127.
The effects of dietary inclusion of faba bean hulls (Vicia faba L.) with a low (.1% catechin equivalents; LT) or high tannin content on the obvious ileal and faeces digestibility of nutrients were studied in three experiments (Exp. 1, 2, and 3) with young pigs (BW 10 to 26 kg).
Faba beansAdditionally, using the 15N isotope dilution method, the actual digestibility of the meals' protein and the excretion of endogenous protein (N x 6.25) in the ileal digesta and feces of pigs were assessed.
Diets either contained casein and faba bean cotyledons as highly soluble (HS) protein sources (Exp. 1 to 3) or protein sources with a low solubility (LS), such as potato protein, soy concentrate, sunflower meal, animal meal, and fish meal.
It has been determined that faba bean condensed tannins interact with dietary and endogenous proteins in pigs' digestive systems.
As a result, less food protein is really digestible and more endogenously secreted proteins are excreted. Faba bean tannins interact with proteins more frequently than other molecules.
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Transmembrane proteins assist passive transport of substances that cannot cross the lipid bilayer on their own down their concentration gradient. True or false?.
It is true that transmembrane proteins assist passive transport of substances that cannot cross the lipid bilayer on their own down their concentration gradient
The passive movement of molecules over a concentration gradient is referred to as facilitated diffusion. It is a selective mechanism in which only certain molecules and ions may flow through the membrane. Other molecules, however, are prevented from flowing through the membrane. The electric charge and pH both aid in membrane diffusion. The plasma membrane regulates the passage of chemicals into and out of the cell by being selectively permeable. This is accomplished by the active or passive transport of chemicals. It is required for the transport of vital substances like as glucose, proteins, minerals, and gases. Temperature, concentration, diffusion distance, and molecule size all influence facilitated diffusion.
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The total amount of living tissue within given topics level is called
Answer: The answer is "biomass".
Explanation: yes
Scientists use specific levels of organization to analyze the biosphere. which level of organization is seen in both a school of anchovies and a gaggle of geese?
Scientists use specific levels of organization to analyze the biosphere. This shows population level of organization is seen in both a school of anchovies and a gaggle of geese. The correct option is C.
What is a population?A population is a discrete assemblage of entities with identifiable characteristics, such as people or animals, with the goal of analysis and data collection.
It is made up of a similar group of species that live in a specific geographical location and have the ability to interbreed.
The population is an important factor in balancing the environment; the population should be in balance with the means and resources.
Scientists analyze the natural ecosystem using different levels of organization. This demonstrates population-level organization within both a school of anchovies and a flock of geese.
Thus, the correct option is C.
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Water Advertisement
Water is so common, that it often is taken for granted. But as we’ve learned, it is a
remarkable molecule that is essential to life. And it is the unique properties of water that allow life on the planet to exist. Most people on this planet don’t know of water uniqueness and life-permitting properties. That needs to change!
Answer: Because ignorance water is misused
Explanation:
why are some ions known as polyatomic ions?
Answer:
because a polyatomic ion is just a regular ion except it contains more then one atom
Explanation:
What had happened with the HeLa cells that made the Johns Hopkins researchers want to take blood and tissue samples from the Lacks family?
plzz real answers only
Answer:
HeLa cells contain rare traits that make them invaluable to scientific research. Research into the Lacks family may provide insight into this mutation and cell proliferation.
Explanation:
HeLa cells have a controversial origin, rooted in ethical breaches. They were derived from a non-consenting, female African-American donor patient, Henrietta Lacks who was terminally ill with a form of cervical cancer. These particular cells have a remarkably short period of proliferation, due to their active telomerase.
During cell division, these telomoerases were found to make repeat copies of the cell's telomere, and the cells can divide an unlimited number of times in lab cell cultures- a very rare occurrence. They were later commercialized- HeLa cells are durable, robust and commonly used in cancer cell research.
Use the drop-down menus to complete the statements.
are made of amino acids.
are used by organisms to store and transmit genetic information.
are used by organisms for tissue growth and repair.
PROTEIN are made of amino acids.
DNA are used by organisms to store and transmit genetic information.
PROTEIN are used by organisms for tissue growth and repair.
Proteins are large complex molecules composed of amino acids and primary source of nitrogen in our diets.Dna is a double stranded, helical nucleic acid molecule capable of replicating and determining the inherited traits of organisms and viruses.Amino acid is a large chain linked with peptide bondProteins are composed of carbon hydrogen oxygen and nitrogenDna contains genetic material and transmit to the progeny.protein are of 20 types contains essential and non essential.To know more about DNA visit :
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the effect of phacoemulsification on intraocular pressure in eyes with preexisting glaucoma drainage implants
At the first postoperative week after GDI surgery, phacoemulsification caused a momentary decrease in IOP.
What is Glaucoma?A series of eye conditions known as glaucoma induce damage to the optic nerve and vision loss. The drainage angle for fluid within the eye is left open in open-angle (wide angle, chronic simple) glaucoma, which is the most prevalent kind. Normal-tension glaucoma and closed-angle glaucoma are less prevalent varieties. Open-angle glaucoma doesn't hurt and develops gradually over time.
If untreated, peripheral vision may start to deteriorate, accompanied by central vision, and could eventually lead to blindness. A fast or gradual onset of closed-angle glaucoma is possible. Severe eye pain, hazy vision, a mid-dilated pupil, eye redness, and nausea may all be present suddenly. Glaucoma causes persistent vision loss once it has already started. Glaucomatous eyes are referred to as
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As a responsible citizen and future taxpayer, what concerns would you have about switching from a traditional fossil fuel-based to a biomass-based energy source for your community? Think about environmental, economic, and societal concerns.
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Which statement describes biological organization on a level smaller than a cell?
A. Many specialized cells come together to form a tissue.
B. Multiple organs can function together in a system.
C. Two or more tissues combine to form an organ with a specific function.
D. All living organisms are made up of organic compounds.
Answer: B- Multiple organs can function together in a system.
Explanation: I took the quiz.
Answer: All living organisms are made up of organic compounds.
Explanation: I took the quiz and the other answer was wrong but this one was right.
Suppose that the oil pipeline will be built through the middle of the area and caribou will not be able to go under it or jump over it. predict what might happen to the caribou and tell me why
The number of variables and the number of observations of caribou contacts with raised pipe are currently too great to allow any generalizations about the impact on caribou mobility.
which problem affected CARIBOU in the THE TRANS-ALASKA PIPELINE ?The trans-Alaska oil pipeline building could have an impact on caribou behavior and seasonal movements, according to research conducted by the Alaska Department of Fish and Game since July 1974. The Beaufort Sea's coast to the north, the Brooks Range's crest to the south, and the Canning and Colville rivers to the east and west, respectively, roughly define the research area's boundaries. The study region is roughly divided in half by the Trans-Alaska pipeline and its accompanying haul route.There are four sections of around 125 km of raised pipe between Purdhoe Bay and Galbraith Lake Camp, making up 51% of the entire pipe length on the arctic slope.To learn more about CARIBOU THE TRANS-ALASKA PIPELINE refer:
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which element is always present in proteins
Answer:
Carbon (C)Hydrogen (H)Oxygen (O)Hydrocarbonyl elements
Explanation:
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wang bh, campbell g (2009) formulations of polyvinyl alcohol cryogel that mimic the biomechanical properties of soft tissues in the natural lumbar intervertebral disc. spine 34:2745–2753
Wang bh, campbell g (2009) formulations of polyvinyl alcohol cryogel that mimic the biomechanical properties of soft tissues in the natural lumbar intervertebral disc. spine 34:2745–2753
Current lumbar intervertebral disc prostheses gives suboptimal symptom relief and do not restore natural load-cushioning.
PVA-C is a likely material due to its high water capacity , excellent biocompatibility, and cosmopolitan mechanical properties. PVA-C samples were made with different PVA concentrations and number of freeze thaw cycles (FTC). Unconfined concretion was conducted to characterize various PVA-C formulations. concretive stress relaxation and creep were performed to evaluate the stability of PVA-C under stress. The results were distinguised to the mechanical properties of human lumbar intervertebral discs obtained from literature.PVA-C compressive elastic modulus jumped with elevating PVA concentration and no. of FTC's. The 3% 3FTC is the best formulation for mimicking the nucleus pulposus in concretion .
In general, concretive stress relaxation and creep falllen with elevated PVA concentration and no. of FTC's. concretive stress relaxation and creep were lower for PVA-C than human lumbar intervertebral discs, proposed that PVA-C will mostly exhibit stable and affirmable mechanical response in vivo.
All formulations furnished good mimicry of the human IVD in stress relaxation and creep. PVA-C also furnished good match to the anulus fibrosus matrix.
Good unimprisoned compression, stress releasing and creep behavior, summed with excellent biocompatibility, makes PVA-C a suitable choice as a major component of a tissue-mimicking artificial IVD.
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Help pls. I will give brainliest.
A plant has a genetic defect that causes its leaves to dry out, becoming brittle and prone to injuries. The genetic defect most likely causes each leaf to lack a _______
It's either cuticle or sufficient root
Answer:
Sufficient root!Explanation:
took it last year
Answer:
Sufficient root.
The number of individual organisms present in a given population at a given time is.
Answer:
7th Science Honors Ch. 4 Vocab
A B
population size: the number of individual organisms present in a population at any given time
population density: the number of individuals in a population per unit of area
population distribution: how organisms are arranged within an area; sometimes called population dispersion.
Explanation:
annie wants to know the effect of different colors of light on the growth of plants. she believes that plants can survive best in white light. she buys 5 ferns of the same species, which are all approximately the same age and height. she places one in white light, one in blue light, one in green light, one in red light and one in the closet. all of the ferns are planted in miracle-grow and given 20 ml of water once a day for 2 weeks. after the two weeks, adele observes the plants and makes measurements.
Two Questions! Will give brainliest!
What does the law of superposition tell about the relative ages of rocks?
That the deeper you go into rock layers, the older the rocks are
that the deeper you go into rock layers, the younger the rocks are
that the oldest rock layer is always on top
that the oldest rock layer is always undisturbed
•
After a rock layer is eroded, which additional event must occur to create an unconformity, or a gap, in the geologic record?
An earthquake or motion along a fault
new sediment deposits build up on the eroded area
radioactive decay along a fault
avolcanic eruption near the eroded area
The genetic information that moves from the nucleus to the cytoplasm of a cell during protein synthesis is called.