Answer:
Photosynthesis would need Carbon Dioxide, Water, and Sunlight
mRNA has 1500 bases. If all of them are used for coding amino acids, the number of amino acids in polypeptides will be ?
Answer:
499
Explanation:
An unknown bacterium has been inoculated onto a Mannitol Salt Agar plate and incubated at 37 degrees C. After 48 hours, you observe the plate. What interpretations and conclusions can be made from this result
Explanation:
Halotolerant is the ability of the organism to grow at the higher concentration of salt than the required concentration for its growth.
As we know Mannitol salt is used as selective medium for isolation of pathogenic bacteria. The medium has mannitol salt, phenol red indicator, 7.5% sodium chloride. This high salt concentration inhibits the growth of most bacteria.
The interpretations and the conclusion regarding to the given situation should be explained below.
What is Halotolerant?It is the capability of the organism for growing at a higher concentration of salt as compared to the concentration with respect to the growth. Since Mannitol salt should be applied as the selective medium for isolation of pathogenic bacteria. The medium contained the mannitol salt, phenol red indicator, 7.5% sodium chloride.
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A scientist finds a tiny fragment of a bone too small to be classified by its appearance. The scientist studies the tiny fragment and concludes that it belonged to an ancient primate species. How was the scientist able to classify the bone?
Answer:
Through a microscope.
Explanation:
A stereozoom microscope is a handy instrument for magnifying small features on the surface of a bone.
Answer:
Through a microscope
Explanation:
I just know
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why is it difficult for scientists to study the mechanism of evolution
Answer:
Because evolution is not a simple process and it is hard to accurately determine how a species evolved or what the species evolved from.
Your neighbor, Mr. Turner, doesn't think that alternative energy resources like water, wind, or solar are important. He asks, "Why not just do what we have always done?" To help Mr. Turner understand, justify the use of alternative energy resources instead of fossil fuels with at least one real life example.
please help
Answer:
--
One of the amazing things about alternative energy resources is that they are renewable, unlike fossil fuels. The use of fossil fuels, such as coal and natural gasses, can contribute a lot to pollution since fossil fuels are usually processed through factories and plants. With water, wind, and solar energy, it is much easier to gain electricity with those methods rather than others, and much cheaper.
Which of the following is not an example of how renewable biofuels could replace nonrenewable resources?
A)
Wood chips could replace methane.
B)
Sugarcane and corn products could be used to burn instead of coal.
C)
Palm oil from renewable trees could replace nonrenewable biodiesel.
D)
Residues from animals such as manure could replace the use of methane.
E)
Residues from agricultural sources could be used as fuel.
Answer:
I believe the answer would be:
E) Residues from agricultural sources could be used as fuel.
Let me know if I'm wrong or right since I'm not too sure.
Answer:
E.) edg 2021
Explanation:
The organelle that is the site of cellular respiration is the
o mitochondrion
O nucleus
o chloroplast
o ribosome
Answer:
hope this helps
Explanation:
mitochondrion
Answer:
mitochondrion
Explanation:
Plz mark brainliest thanks
what are the two phases of the respiratory movement of man? Are they the same in a grasshopper or a fish?
The two phases of the respiratory movement of man is inspiration ( or inhalation) and expiration (or exhalation). The phases of the respiratory movement of men is the same in fish because they also inhale and exhale.
What is inspiration (inhalation ) ?
Inspiration (inhalation) is the process of taking air into the lungs. It is the active phase of ventilation because it is the result of muscle contraction.
What is expiration (exhalation)?
Expiration (exhalation) is the process of letting air out of the lungs during the breathing cycle.
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si en un instituto se bachilleran 130 estudiantes. si en el día de la graduación lo ordenaron en sucesión aritmética con 20 en la primera fila y 32 en la última, cuantas filas se formaron?
Answer:
Se forman 5 filas.
Explicación:
Se forman 5 filas si se ordenaron 130 estudiantes el día de la graduación en sucesión aritmética con 20 en la primera fila y 32 en la última porque se agregan 3 estudiantes en cada fila después de la primera fila. La primera fila tiene 20 estudiantes, la segunda fila tiene 23 estudiantes, la tercera fila tiene 26 estudiantes, la cuarta fila tiene 29 estudiantes y la quinta o última fila tiene 32 estudiantes.
function of nervous tissue
Poiseille's law is often used to calculated the arteriolar blood flow. According the this law, the following all affect blood flow:-radius of vessel-length of vessel-viscosity of blood-pressure gradientWhich of these has the GREATEST affect on blood flow?
Answer:
a. radius of vessel
what type of symbiotic relationship is between the anémone and the clow fish?
A.Commensalism
B.Paratism
C.Predation
D.Mutualism
The answer is D. Mutualism
Explain how might studying alleles help scientists learn about genetic diseases.
Answer:
they can study these preserved genes and compare the genomes of different species to find similarities and differences that improve their understanding of how human genes function and are controlled. this helps researchers develop new strategies to treat and prevent human disease.
Explanation:
The unit of measurement for forces is called
Answer:
I am pretty sure its called a Newton=unit of force
-Present-day mitochondria and chloroplasts probably evolved as a consequence of early endosymbiosis: the ancestor of the eukaryotic cell engulfed a bacterium, and the bacterium continued to function within the host cell.
1) What is the Endosymbiont theory? What is the evidence supporting this theory?
Answer:
The evidence suggests that these chloroplast organelles were also once free-living bacteria.
Explanation:
The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.
:)
Choose all the right answers.
Identify the structures associated with the male part(s) of a flower.
pistil
egg
anther
ovary
stigma
pollen
stamen
NEED HELP NOW!!!
Tubelike cells that carry food from the leaves to other parts of the plant are called?
Question 1 options:
Xylem
Phloem
Chloroplasts
Answer: Phloem carry food from the leaves to other parts of the plant
Explanation: Xylem carry water and Chloroplasts are organelles in cells wich allow the plant to photosynthesise
Urgent!! Please help! :((
Answer:
The table shows that sound waves travel more quickly through water than through air.
Explanation:
2. What does proper disposal of hazardous waste prevent?
How do organisms obtain energy from an ecosystem?
Answer:
Plants obtain food by photosynthesising
Herbivores obtain food by eating plants
Carnivores obtain food by eating an animal
At which time of year would mitosis in a plant occur most frequently? Explain why?
Answer:
it would be based on the most common prophase time of year is.
Explanation:
I don't know to be honest.
In plants, mitosis occurs most frequently during the periods of growth such as the during the periods of inactivity such as during germination and springtime bud formation.
What is Mitosis?Mitosis is the cell division which occurs in all the somatic cells in the plant body as well as in the animal cell. Mitosis results into the formation of diploid cells.
Mitosis occurs most rapidly in the meristematic tissues of the plants. These are the zones of growth in plants.
In plants, mitosis occurs most frequently during the periods of growth, for example when they come out of the periods of inactivity, such as during seed germination and spring time bud formation.
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True or false a proton is a negatively charged particle that resides in the nucleus of an atom and has a mass of 1 and a charge of -1
Answer:
False
Explanation:
Protons have a positive charge
Cells can be prokaryotic or eukaryotic. Which of the following structures is present in eukaryotic cells but not in prokaryotic cells?
Answer:
nucleus
Explanation:
eukaryotic has a nucleus, prokaryotic does not
Think about what you have had to eat lately, chances are you have enzymes in your body specifically designed to
help break that molecule down. What are 3 types of molecules that may need to be broken down in your body
Answer:
The human body uses three types of molecules to yield the necessary energy to drive ATP synthesis: fats, proteins, and carbohydrates.
Explanation:
Your welcome<3
Got it from www.nature.com
When fruits or vegetables are left exposed to the air after they have been boiled, they don't turn brown. How can you explain this?
Answer:
I guess cuz u didn't use direct heat with fire, just hot water
Explanation:
Which best compares self-renewal and differentiation?
Answer:
Only differentiation creates more of the same types of cells. ... Only self-renewal creates more of the same types of cells. Only self-renewal depends on gene expression
Answer:
Only differentiation creates more of the same types of cells. ... Only self-renewal creates more of the same types of cells. Only self-renewal depends on gene expression.
Explanation:
please give me brain list and follow
You are studying ion channels and have set up model lipid vesicles containing the three following transporters:
1. a Na+ /H+ antiporter driven by the Na+ concentration gradient.
2. The common 3Na+ /2K+ pump.
3. K+ leak channels. The experiments are designed such that all three transporters are oriented in the model lipid bilayers in the same direction they would be in the plasma membrane of a cell and that concentration gradients in vitro mimic the concentration gradients experienced by cells (e.g., the extracellular Na+ concentration is similar to the concentration outside of the vesicle whereas the concentration in the lumen of the model vesicles is similar to intracellular Na+ levels).
Required:
a. Draw the arrangement and ion flow of the three types of transporters in the model membranes.
b. What do you predict will happen to the pH of the vesicle lumen if you treat the model membranes with the drug oubain that impairs function of the 3Na+/2K+ pump? Briefly explain your answer in terms of what happens with each transporter.
Answer and Explanation:
a) you will find the arrangement and ion flow of the three types of transporters in the model membranes in the attached files.
K+ leak channels are channel proteins that allow K⁺ to leave the cell in favor of its concentration gradient. It keeps a stable equilibrium by taking out K⁺ that the 3Na+ /2K+ pump brings into the cell. Any alteration in the pump leads to an alteration in the leak channel functioning. Na+ /H+ antiporter is an integral membrane protein, and a secondary transporter is responsible for the interchange of H+ and Na+ through the membrane with no use of energy. It regulates pH within the cell. It responds to the Na+ and H+ concentration gradient, determined by the 3Na+ /2K+ pump. An alteration in the pump functioning produces a change in the Na gradient and consequently affects the antiporter interchange action. 3Na+ /2K+ pump is an integral protein that transports K+ and Na+ against the electrochemical gradient. A significant amount of energy is used to make the pump function. It brings K+ into the cell and takes Na+ out of it. It keeps the membrane potential and the electrochemical gradient constant. The pump function is associated with the leak channels and the antiporters function.Under normal conditions, the cell interior has a lower pH than the exterior. The K+ concentration is higher in the interior, while the Na+ concentration is higher in the cell exterior. The interior of the cell is always more electronegative than the cell exterior.
b)
The drug ouabain inhibits the pump. It impedes the Na+ exit and the K+ entrance. It occurs a sharp increase in the Na+ intracellular concentration, which influences the Na+ /H+ antiporter that changes the ions´ direction, taking out Na+ and bringing in H+ to compensate the intracellular Na+ excess. There is also a decrease in the leak channel function, which does not allow K+ to leave the cell.
Whenever the pump is inhibited, there is an increase in the intracellular pH, because Na+ concentration increases in the interior.
Where do substrates bind on an enzyme?
active site
surface receptor
voltage-gated
channels
calcium channels
PLEASE HELP DUE IS 2 MINUTES...
Describe what happens when cells divide uncontrollably?
Mutation in the hemoglobin gene can cause sickle-cell anemia. The defective protein found in sickle-cell anemia causes red blood cells to “sickle”—become a misshapen C shape. These misshapen cells abnormally stick to each other and can become trapped by leukocytes (white blood cells) that are rolling or paused on the endothelial cells lining the vessel. This causes blockages of small blood vessels, causing severe pain and strokes called vaso-occlusive crisis. A new drug that binds and blocks selectin proteins is in phase III clinical trials to test for improvement in patients' symptoms. Why might this be an effective treatment for vaso-occlusive crisis?