Steroid hormone are hormone whose receptor will be inside the cell and Protein hormones have their receptor on the cell membrane
Contrary to steroid hormones, which are lipid in composition and can easily enter the cell, proteinaceous signaling molecules must have their receptors anchored in the plasma membrane since proteins cannot cross the membrane. The receptor for protein hormones is membrane-associated and embedded in the plasma membrane of the cell's surface. When a hormone interacts with a receptor, a series of secondary effects are frequently triggered in the cell's cytoplasm.
These effects can include the phosphorylation or dephosphorylation of numerous other cytoplasmic proteins, modifications to ion channel permeability, or elevated levels of intracellular molecules that may serve as secondary messengers. Target cells include steroid hormone receptors on their plasma membrane as well as in their cytoplasm and nucleus. They are typically nuclear or cytoplasmic intracellular receptors that start signal transduction for steroid hormones and cause changes in gene expression over the course of hours to days.
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a biochemist obtains the following set of data for an enzyme that is known to follow michaelis-menten kinetics. identify approximate value of vmax and km
Approximately, Vmax = 0.001996,Km=6. It is an enzyme that is known to follow michaelis- menten kinetics. Michaelis–Menten kinetics is one of the best-known models of enzyme kinetics.
Michaelis-Menten kinetics is one of the most well-known models of enzyme kinetics in biochemistry. The German biochemist Leonor Michaelis and the Canadian doctor Maud Menten are honored by its names. Michaelis-Menten kinetics, which was first developed as a mathematical model of enzyme reaction rates, is commonly used to explain how nutrients like oxygen are absorbed by cultured cells
The model depicts a cell (cell c) building a complex with a substrate (substrate s), consuming the substrate, and then producing a product (product p). More nutrients can then be taken in by the cell and enzyme
Slope=Km/Rmax
Km=slope/intercept=6/0.002 = 3000
Slope=(0.015-0.005)/(0.75-0.25)=6
[tex]Vmax=[s]/(Km+[s])[/tex]
Vmax = 6/(3000+6)
= 0.001996
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What is the likely function of a cell that has a large amount of rough endoplasmic reticulum and
golgi apparatus?
How are tropical storms in the northern hemisphere different from tropical storms in the southern hemisphere?.
The difference between the tropics in the Northern Hemisphere and the Southern Hemisphere is the rotation.
Explanation:
Tropical storms in the Northern Hemisphere rotate clockwise, while those in the Southern Hemisphere rotate counterclockwise.
The reason is something called the Coriolis effect, or Coriolis force, named for the French mathematician Gaspard-Gustave de Coriolis, who published work on the effect in the 19th century. Like a record on a turntable, the earth spins at a different speed at the equator than it does at the North Pole.
The same is true of anything that spins or rotates — the outside edge of something (in this case, the equator) always spins faster than the inside edge.
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Balance depends on information your brain receives from your eyes, muscles, and the semicircular canals in your ear. The 3 semicircular canals are filled with fluid and small hairs, and they are aligned at right angles to each other. When the head moves, the fluid in the canals moves the hairs and a nerve impulse is sent to the brain. With this information, please explain in detail why spinning makes you dizzy.
Your tongue is covered in bumps called papillae. Papillae have taste receptors that are bundled together (taste buds). Taste buds have microscopic hairs called microvilli which send nerve impulses to the brain. However, your nose plays a role too! While you’re chewing, the food releases chemicals that travel up your nose and trigger olfactory receptors which also send nerve impulses to the brain to help you interpret the true flavor of what you’re eating. With this information, explain why a cold or allergies can diminish the flavor of your food.
From the information above, we can explain in detail why spinning makes you dizzy. The reason is that our brain then can tell your body how to stay balanced. If you spin around and then stop, the liquid inside the semicircular canals moves awhile longer and the hairs continue to send the message to the brain that you are spinning even though you're not. That's why we feel dizzy.
From the information about, we can explain why a cold or allergies can diminish the flavor of your food. The reason is because When you have a cold or allergies, and your nose is stuffy, you might notice that your food doesn't seem to have much flavor. That's because the upper part of your nose isn't clear to receive the chemicals that trigger the olfactory receptors or that inform the brain and create the sensation of flavor.
What is the brain?The brain can be described as a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body.
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Special landfills A) Hazardous waste is inserted into the ground, which may contaminate the groundwater
Injection wells B) Use double clay liners and leachate collection to prevent groundwater contamination
Incineration C) Hazardous wastes are burned and can release mercury and dioxins into the air
Portland cement D) Hazardous waste are cemented together to reduce transmission of toxins
Special landfills - Use double clay liners and leachate collection to prevent groundwater contamination
Portland cement - Hazardous waste are cemented together to reduce transmission of toxins
Injection wells - Hazardous waste is inserted into the ground, which may contaminate the groundwater
Incineration - Hazardous wastes are burned and can release mercury and dioxins into the air
What is waste?The term waste has to do with any material that you need to dispute and is not useful for any further purpose. We ought to know that the generation of waste materials is a part of the daily processes of life. The presence of waste could make it difficult for the process of the recycling of the waste and increase pollution in the immediate environment.
We have in the question several terms and we are asked to actually get the correct definition of the terms. Let us note that the correct definition would be able to explain the concept practically.
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19) which of the following interactions can correctly be labeled coevolution? a) the tendency of coyotes to respond to human habitat encroachment by including pet dogs and cats in their diets b) a genetic change in a virus that allows it to exploit a new host, which responds to virus-imposed selection by changing its genetically controlled habitat preferences c) a genetic change in foxes that allows them to tolerate human presence (and food) d) the adaptation of cockroaches to human habitation e) the ability of rats to survive in a variety of novel environments
b) a genetic change in a virus that allows it to exploit a new host, which responds to virus-imposed selection by changing its genetically controlled habitat preferences following interactions can correctly be labeled coevolution.
Which of the following phrases best explains how termites and the protozoans that eat within their stomach interact?Mutualism. Mutualism is a second form of symbiotic association in which two organisms cooperate for the mutual benefit of both. These are the only real instances of symbiosis, according to some experts. For instance, the protozoa that reside in the stomach of the bug have a mutualistic connection with termites.
A species' place and function in its environment—including how it satisfies its needs for food and shelter, stays alive, and reproduces—are referred to as its ecological niche. All of a species' interactions with biotic and abiotic elements of its environment are included in its niche.
Predators avoid the marks because they link them with venomousness.
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Which is an immediate effect of blocking the activity of mitochondrial atp synthase?.
Answer:
The pH in the space between the mitochondrial membranes would decrease.
Explanation:
Incubation of boar spermatozoa in a capacitation medium with oligomycin A, a specific inhibitor of the F0 component of the mitochondrial ATP synthase, induced an immediate and almost complete immobilisation of cells.
Which option describes how genes control the traits of a cell?
Genes become building blocks for specific structures and molecules in a cell. Those structures and molecules form the traits of the cell.
Genes code for specific structures and molecules in a cell. Those structures and molecules form the traits of the cell.
Genes are molecules that organelles are made out of. Once assembled into organelles, they form the traits of the cell.,
Genes determine how much energy goes to each organelle in the cell. The organelles form the traits of the cell.
Answer:
Genes code for specific structure
and molecules in a cell. those structures and molecules from the traits of the cell
Explanation:
Genes are capable of controlling traits by means of gene expression. The gene's DNA comprises a nucleotide sequence that corresponds to a particular amino acid sequence of a protein through the genetic code, that comprises a set of three codons each specifying a particular amino acid
Identify the labeled structures.
A:
B:
C:
D:
E:
Answer:
A. Golgi Apparatus
B. Vacuole
C. Mitochondrion
D. Nucleus
E. Cell membrane
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i need help i have to submit in 20 minutes!!!
Answer:
Cell 3
Explanation:
I'm in college prep biology, so I believe I'm right.
1. What are the instructions for building all living things?
Answer:
The seven characteristics what makes an organism living are: Environmental responses, cells, change and growth, reproduction, having complex chemistry, and homeostasis and energy processing
drag labels to targets in group 1 to identify the main functions of membrane proteins. drag labels to targets in group 2 to identify some components associated with the plasma membrane.
Some components associated with the plasma membrane are phospholipid bilayer ,fibers of extracellular matrix, enzymatic activity, microfilaments of cytoskeleton, attachment to ECM and cytoskeleton.
All cells contain a membrane that divides the interior from the external environment. This membrane is known as the cell membrane or the plasma membrane. A lipid bilayer that is semipermeable makes up the cell membrane. The cell membrane controls the movement of materials into and out of the cell.
A cell is shielded by its plasma membrane, often known as its cell membrane. The membrane serves a variety of purposes and also creates a stable environment inside the cell. One involves moving both hazardous compounds out of the cell and nutrients into it. Another is that the cell's membrane, which is its plasma membrane, has proteins that interact with other cells.
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Compare and Contrast As you read your textbook, complete the Venn
agram to compare
A Venn diagram is a useful tool for comparisons between two or more things, occasions, or individuals as well as for brainstorming. This might serve as the basis for the first step in developing a compare and contrast essay outline.
Simply create two (or three) sizable circles, each with a label that corresponds to the thing, quality, or individual you are contrasting.
Write all the characteristics that the objects share inside the overlapped area created by the intersection of the two circles. When comparing traits that are comparable, you will make reference to these qualities. You should provide all the characteristics unique to that object or person in the spaces outside the overlapped section.
What is venn diagram?
John Venn (1834–1923) popularised the Venn diagram, a common diagram type that illustrates the logical relationship between sets, in the 1880s. The illustrations are used in probability, logic, statistics, linguistics, and computer science to demonstrate basic set relationships and to teach rudimentary set theory.The set representations in a Venn diagram are plain closed curves drawn on a plane. These curves are frequently circles or ellipses.
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If fertilization involves two gametes that contain different alleles of a given gene, the resulting offspring is.
When the fertilization involves two gametes that contain different alleles of a gene, the resulting offspring is said to be heterozygous.
Heterozygous, in genetics, refers to having inherited different versions alleles of a genome from each parent.
An organism with one dominant and one recessive allele is said to have heterozygous genotype. This genotype is written as Bb. Genotype of organism with two recessive alleles is termed as homozygous recessive.
It is a heterozygous genotype for that gene if the two versions are different. For example we can say, being heterozygous for hair color means you have one allele for red hair and one allele for brown hair. The relationship between two alleles affects the traits that are to be expressed.
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One reason cell divide is that organisms can
Answer:
Organisms grow because cells are dividing to produce more and more cells.
Heads of Elysia cf. marginata sea slugs sometimes pull themselves free from their bodies. The heads just keep crawling around. Within a few hours, some heads start nibbling algae again. Within about 20 days, heads from young slugs can have regrown those missing body parts, including heart and all.
Sayaka Mitoh and Yoichi Yusa are ecologists at Nara Women's University in Japan. They described the regrowth of cells and ultimately the sea slugs bodies March 8 in Current Biology.
Mitoh first noticed the sea slugs' extreme regeneration by chance. It showed up in some Elysia slugs in his lab. "We were really surprised to see the head crawling," Yusa says.
The head of a sea slug can take several hours to rip itself loose from its body. That's so slow that Mitoh and Yusa don't think the move helps slugs escape predators.
Instead, a detachable body could give the sea slug a drastic, but effective, way of fighting parasites. Mitoh monitored 82 E. atroviridis slugs infested with copepods. Three of the slugs ditched their bodies along with a lot of those copepods. Two of the three managed to grow a new body. An additional 39 of the parasitized slugs let parts of their bodies slowly fall away. In contrast, 64 more sea slugs that had been collected at the same time had no pests. And none of them threw away its body. That supports the idea that parasites could drive slug heads to detach and crawl away from their bodies.
What might help Elysia slug heads regrow a whole body is stealing, Yusa suggests. These animals can take the green sunlight-trapping energy factories called chloroplasts from algae. Very young slugs don't have any chloroplasts. "They need to pierce the cell walls of sea algae and sip the contents," he says. Once ingested, the chloroplasts remain alive inside the slugs for weeks to months.
Biologists have debated what stealing chloroplasts does for the slugs
Using what you know about cellular differentiation and the description of sea slug regeneration explain what is happening at a cellular level:?
A;Specialized cells undergo cellular differentiation to create stem cells that will grow and replace the old cells
B:Stem cells undergo cellular differentiation to create specialized cells to replace missing body parts like cardiac (heart) cells.
C:Cellular differentiation is not necessary in order for the sea slugs to regrow its missing body parts.
D:None of the above.
The description of sea slug regeneration explains that Specialized cells undergo cellular differentiation to create stem cells that will grow and replace the old cells and is denoted as option A.
What is Cell differentiation?This is referred to as the process which involves the division of cells into younger and immature cells which then evolves to form a specialized cell after maturity has been attained.
We were told that the organism which is referred to as slug is able to detach its head and grow back through the absorption of chloroplasts from algae which helps in its regeneration.
In this scenario, the slug undergoes differentiation and creates stem cells that will grow and replace the old cells which is the head and is therefore why option A was chosen.
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which are the two components of a nervous system
Answer:
The nervous system has two main parts: The central nervous system is made up of the brain and spinal cord.
______ is a pioneer species in a secondary succession.
Moss
Phosphorous
Plankton
Grass
Answer:
Grass
Explanation:
Which is more, 1192 milliliters or 1
liter?
How could selective breeding be used to reduce deforestation?
creating artificial wood
creating trees that grow more quickly
creating trees with more leaves
creating richer soil
Selective breeding can be used to reduce deforestation by creating trees that grow more quickly and is denoted as option B.
What is Deforestation?This is referred to as the process in which the forest is cleared or trees are removed from a certain area of land for other types of activities and use.
Selective breeding on the other hand is the process in which parents with certain characteristics are planted to give rise to offspring with some types of desirable traits and advantages. The trees which grow quickly will make deforestation harder which is why option B was chosen as the correct choice.
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when horses and donkeys mate, their offspring are mules. mules are sterile because they cannot produce functional gametes. this is evidence that: (select the best answer)group of answer choiceshorses and donkeys are separated by a prezygotic barrier.horses and donkeys are separated by genetic drift.horses and donkeys are members of the same species.horses and donkeys are separated by a postzygotic barrier.horses and donkeys are separated by a founder event.flag question: question 2
Mules are the offspring of a horse and a donkey. Mules are sterile, making them ineffective for further reproduction. This proves that a zygote can be produced when a horse and a donkey mate.
An egg cell and sperm cell combine to form a zygote, a brand-new, distinct organism. The zygote in single-celled organisms can split asexually through mitosis to create identical progeny. This produces Mules, albeit this zygote result is not sterile.
Aseptic — germ-free — and sterile are synonyms. Although it's most frequently used in relation to objects and materials like scalpels, needles, and gauze as well as settings like operating rooms. The ability of modern medicine to stop infections and the spread of disease depends on the cleanliness of objects. This is known as sterile.
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Hemoglobin is the protein found in ______ blood cells that transports ______ throughout the circulatory system.
Hemoglobin is the protein found in red blood cells that transports oxygen throughout the circulatory system.
The red blood cells (erythrocytes) of almost all vertebrates, with the exception of the fish family Channichthyidae, and some invertebrate tissues, contain hemoglobin, an iron-containing oxygen-transport metalloprotein.
The blood's hemoglobin transports oxygen from the respiratory system, including the lungs and gills, to the rest of the body (i.e. tissues). There, oxygen is released, allowing aerobic respiration to take place and produce energy for an organism's metabolic processes.
Other gases are also transported by hemoglobin, which carries some of the body's respiratory carbon dioxide (20–25% of the total)as carbaminohemoglobin, a form of hemoglobin in which carbon dioxide is bonded to the heme protein.
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7. Considering function... Why is it useful to the plant to make bright red mature fruits? (What is the
ultimate purpose of mature fleshy yummy fruit?
Answer: Plants colour their fruits to flag down the right animals
Explanation: Why are raspberries red and bananas yellow?
A scientific debate has raged for decades about whether plants evolve to produce fruits of particular colours to attract particular animals to help spread their seeds. A new study appears to have finally settled it.
Researchers looked at similar plants in two similar mountain rainforests in Uganda and Madagascar and found that the palette of fruit colours in the two forests is tuned to the way the local fruit-eating animals see the world.
Hungry black bears drawn to residential areas in search of fruit trees, berries
In Uganda, most fruits ripen to a bright red — standing out against the green leaves when spotted by the birds and the local monkeys, which have colour vision similar to ours.
In Madagascar, where the mostly nocturnal lemurs can't tell the difference between red and green, the ripe fruits tend to be green — but shades of green that contrast brightly against the leaves when viewed with "lemur vision," the study, published in the journal Biology Letters, found.
Plants talking to animals
Plants typically signal to the animals when the fruit is ripe by changing its colour — something scientists consider to be a form of communication.
So it might seem obvious that plants would evolve and produce fruit of the right colour to attract the right animals to eat them.
But scientists have found proving this theory isn't so easy, and many previous studies show no evidence of that kind of evolution.
Plus, there are other possible explanations for why fruits are the colours they are. Perhaps it's just genetic, and therefore all related plants in that lineage have the same colour. Or maybe it's because the plant happens to make pigments of that colour for other plant parts.
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Compare and contrast plant and animal cells. Give 3 ways they are alike and 3 ways
they are different. Remember to use complete sentences and proper grammar.
describe the factors that effect ocean currents?
Answer: Winds, water density, and tides
Explanation: all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth's rotation results in the Coriolis effect which also influences ocean currents.
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8. Taxonomy is the science of grouping and naming organisms based on similarities and
differences
a. true
b. false
Answer:A
Explanation:A
What are the four elements
Answer:
water earth fire air
Explanation:
long ago the four nations lived together in harmony but everything changed when the fire nation attacked
Original DNA Code: TAC ACC TTG GCG ACG ACT
Mutated DNA Code: TAC TCC TTG GCG ACG ACT
O Substitution
O Insertion
O Deletion
Answer:
The answer is (A) - Substitution
Linda says kool-aid is a homogeneous mixture. Bryan says it’s heterogeneous. Which one is correct? Explain who and why based on information from the text.
Linda says kool-aid is a homogeneous mixture. Bryan says it’s heterogeneous. The first one is correct. Linda is correct based on information from the text that Kool-Aid is made of water, sugar, and coloring. However, it is not a pure material because the amounts of each ingredient can change depending on how it is prepared.
The combination in Kool-Aid is homogeneous. Homogeneous mixes are chemically combined and are uniform throughout and unable to be separated. By the way, the term "uniform" refers to the consistency or an equitable distribution throughout the sample. Additionally, solutions are another term for homogenous mixtures. Because it is consistent throughout and may be divided, it is a homogenous mixture.
Think about the sample size when determining the nature of a mixture. Heterogeneity is indicated by the presence of more than one phase of matter or multiple regions in the sample. A mixture is homogenous if its composition is consistent across all samples taken from it.
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Compare and contrast Prokaryotic and Eukaryotic cells.
Explanation:
Prokaryotic Cells are single celled organisms and eukaryotes ade multicellular organisms.
Eukaryotes have cell membrane bound organelles while prokaryotes do not.