Someone PLEASE HELP!!!

Answer: They are made up of lipid bilayers. Furthermore, their main function is to enclose different structures of the cell regulating the passage of molecules through the membrane. Also, they act as semi-permeable membranes.

Explanation:

Answer:

21% of oxygen and 0.04% of carbon dioxide inhaled; 16.4% of oxygen and 4.4% of carbon dioxide, exhaled

Explanation:

The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.

Answer:

If I understood your question in the right way, 78°

Explanation:

Cuz, the sum of all 3 internal angles of a triangle is 180°.

180°=91°+11°+x

180°-(91°+11°)=x

78°=x

Answer:

preforming the experiment yourself

Explanation:

jdifn

Answer:

Eukaryotic cells are more complex than prokaryotes, and the DNA is linear and found within a nucleus. Eukaryotic cells boast their own personal "power plants", called mitochondria.The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms.

Explanation:

Answer:

The ability to maintain different environments inside a single cell allows eukaryotic cells to carry out complex metabolic reactions that prokaryotes cannot. In fact, it's a big part of the reason why eukaryotic cells can grow to be many times larger than prokaryotic ones.

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One theory that may explain how eukaryotes became so complex is the endosymbiotic theory. This theory proposes that organelles like mitochondria and chloroplasts were once free-living prokaryotic cells that began to live within a larger host cell.

Answer:

Decodes the sequence of bases on the mRNA and then creates specifc proteins

Explanation:

Decodes the sequence of bases on the mRNA and then creates specific proteins. Therefore, option (A) is correct.

Ribosomes in eukaryotic cells are responsible for protein synthesis, a crucial process in which they decode the genetic information carried by mRNA molecules. Ribosomes read the mRNA sequence and use it as a template to assemble amino acids in the correct order, forming a polypeptide chain that folds into a functional protein. This process, called translation, occurs in two main subunits of the ribosome, which come together on the mRNA strand.

Ribosomes ensure accurate protein synthesis by matching each mRNA codon with the appropriate amino acid, guided by transfer RNA (tRNA) molecules. Ultimately, ribosomes play a central role in translating genetic information from DNA to create a wide variety of proteins that perform diverse functions within the cell and organism, making them essential components of cellular machinery. Therefore, option (A) is correct.

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Answer:

It is the process where the plants use sunlight to gain their food.

Explanation:

Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Hope this helps!

Answer:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar

Explanation:

mark me as brainiest :D

Answer:

[tex]because \: of \: the \: prescnce \: of \: bones \\ thank \: you[/tex]

Explanation:

The pelvis provides support for the spine and some body organs like legs containing lockable knee joints providing a column of support, bearing the weight of the head, neck and trunk, allowing us to maintain an upright position.

Answer:

ok think of apples and trees and car and garage

Explanation:

the A goes to the T because it represents apples to trees and then C goes to the G because its car to the garage it that's how i've always remembered that for MRNA

Answer:

Whats going on is that you have a specific amount of enzyme that can do a specific amount of work. Think of it like a hotdog stand. the enzyme would be you and your substrats are your hot dogs and buns. You can only go as fast as the materials you have. If you have more materials than hands you can only go as fast as you can make them. To many substrates and you enzyme rate will cap out at maximum speed.

Explanation:

The plot shows rate of reaction of an enzyme as a function of the concentration of substrate. At stage B, the rate flattens and becomes constant, which means there's too much substrate for the enzyme to handle. So the fourth statement is false - the rate of reaction cannot be increasing.

Answer:

can I have the picture?

Explanation:

I don't get it

Answer:

d it invaded several neighboring countries

Explanation:

Answer:

i believe the answer is B.

Explanation:

did a little research...tell me if wrong

Answer:

i would say you can go to a link but no link T-T

Explanation:

Answer:

Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection)

Explanation:

Answer:

Adenosine 5'-triphosphate, or ATP

Explanation:

Answer:Adenosine 5'-triphosphate, or ATP

Explanation:

High-density means full and low density is more empty

Answer:

Why is the smooth endoplasmic reticulum unable to synthesize proteins? No ribosomes are attached to its surface. The liver is involved in detoxification of many poisons and drugs. ... Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules

Explanation:

Answer:

Could you please attach an image of the document so I can better assist you?

Explanation:

Have a great day, and spread some positivity!

Explanation:

The prefix iso- means same or equal.

When the concentration of molecules is equal on both sides of the membrane then is an ISOTONIC solution.

The factor that contributes to the formation of tides that turn turbines to create energy in the ocean is Earth's rotation.

Tidal energy is a type of renewable energy that is generated by the movement of water due to the gravitational forces of the moon and the sun.

As the Earth rotates, the gravitational forces of the moon and the sun cause the water in the ocean to move, creating tides that rise and fall twice a day.

This movement of water can be harnessed by turbines, which are placed in areas of high tidal flow. As the tides move in and out, the turbines spin, generating electricity that can be used to power homes and businesses.

While factors such as wind speed, water density, and water temperature can all affect the movement of water in the ocean, they are not the primary factors that contribute to the formation of tides.

The tides are primarily driven by the gravitational forces of the moon and the sun, which cause the water to move in a predictable pattern that can be harnessed for energy generation.

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Answer:

"Nuclear fission takes place in the core of stars."

this statement is false

Answer:

meiosis

Explanation:

Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.

Answer:

f=ma

so if we are finding acceleration, we divide force by mass to get the acceleration which can be 19/26 which gives 0.73 as resulting acceleration

Hope it helps

When an object has a mass of 26kg has a force of 19N applied to it then the resulting acceleration of the object would be 0.73 meters/second².

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum. The mathematical expression for Newton's second law is as follows,

F = ma

As given in the problem, when an object has a mass of 26kg has a force of 19N applied to it then we have to find the resulting acceleration of the object,

mass= 26 kilograms

force = 19 Newtons

Force = mass×acceleration

19 Newtons = 26 × acceleration

acceleration  = 19/26

                     = 0.73 meters/second²

Thus, the resultant acceleration of the object would be 0.73 meters/second².

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Answer:

DNA polymerase

Explanation:

Producers make lower profits, and some will exit the market. The correct option is A.

Thus, Reduced demand for snack cakes will probably result in decreased profitability for producers, and some may even decide to leave the market.

This decline in demand could affect the profitability of snack cake producers by resulting in lower sales and revenues.

In addition, prices may drop as a result of the decline in demand to entice customers to purchase more of the falling snack cakes.

Thus, Producers make lower profits, and some will exit the market. The correct option is A.

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Answer:

Here is an essay.

Explanation:

https://www.bartleby.com/essay/The-Effect-of-Enzymes-on-Hydrogen-Peroxide-F346D6AY9EQ

What is the function of enzymes in a living system?

Enzymes speed up metabolic reactions necessary for life. Without them, certain vital processes would not take place and the body would be unable to function.

Difference enzymes work better under different conditions. Where in a human body might it be beneficial to have enzymes work in very acidic environments?

In areas, like the stomach, that have a pH of two would benefit by having enzymes that function well in acidic environments. An example of such an enzyme is pepsin.

There is a large amount of catalase found in a human liver. Does the liver break down more hydrogen peroxide in the summer or winter? Explain your answer.

More hydrogen peroxide will be broken down in the summer…show more content…

Potassium permanganate - used to titrate and determine the amount of decomposed hydrogen peroxide.  

Sulfuric acid - was used to stop the reaction with catalase and hydrogen peroxide.  It denatured the enzyme (catalase) and halted the reaction so the amount of hydrogen peroxide decomposed could be measured.  

Before performing part D of the experiment, why was it necessary to establish a baseline?

The baseline is a control and shows the amount of decomposed hydrogen peroxide in the initial sample.  

You may have observed the reaction of naturally occurring catalase in tissue from either liver or potato. Design an experiment to determine if the amount of catalase varies from tissue to tissue (e.g. 200 g of the liver compared to 200 g of potato).  

Put the 100 g of potato in 1 petri dish and 100 g of the liver in another petri dish. Then put equal amounts of hydrogen peroxide for an equal period of time in both dishes. Drain the dishes and titrate them with potassium permanganate simultaneously. The numbers can now be compared using the steps in the sample calculation above in the lab report. In order to compare perform a potassium permanganate titration on pure hydrogen peroxide.  

Of the thousands of enzymes known, there is a family of enzymes called proteases that catalyze a reaction of breaking down proteins. What do you think would happen if you added a protease to your sample of catalase before proceeding with your experiment?  

The catalase would be broken

Answer:

Optic Chiasm

Explanation:

Optic nerves travel through the optic chiasm to ensure that visual signals go to each hemisphere of the brain.

Answer:

C

Explanation:

Deforestation is the process clearing large expanses of woodland; which destroys biodiversity, removes fertility in soil and increases greenhouse gases; but DECREASES the amount of forested areas. Hope this helps :D