Answer:
the alveoli in the lungs fill with fluid
Adenine, thymine, cytosine and guanine are ___________________ instructions to cells.
DNA is essentially a storage molecule. It contains all of the instructions a cell needs to sustain itself. These instructions are found within genes, which are sections of DNA made up of specific sequences of nucleotides. In order to be implemented, the instructions contained within genes must be expressed, or copied into a form that can be used by cells to produce the proteins needed to support life.
The instructions stored within DNA are read and processed by a cell in two steps: transcription and translation. Each of these steps is a separate biochemical process involving multiple molecules. During transcription, a portion of the cell's DNA serves as a template for creation of an RNA molecule. (RNA, or ribonucleic acid, is chemically similar to DNA, except for three main differences described later on in this concept page.) In some cases, the newly created RNA molecule is itself a finished product, and it serves an important function within the cell. In other cases, the RNA molecule carries messages from the DNA to other parts of the cell for processing. Most often, this information is used to manufacture proteins. The specific type of RNA that carries the information stored in DNA to other areas of the cell is called messenger RNA, or mRNA.
How does transcription proceed?
Transcription begins when an enzyme called RNA polymerase attaches to the DNA template strand and begins assembling a new chain of nucleotides to produce a complementary RNA strand. There are multiple types of types of RNA. In eukaryotes, there are multiple types of RNA polymerase which make the various types of RNA. In prokaryotes, a single RNA polymerase makes all types of RNA. Generally speaking, polymerases are large enzymes that work together with a number of other specialized cell proteins. These cell proteins, called transcription factors, help determine which DNA sequences should be transcribed and precisely when the transcription process should occur.
The diagram shows two parent cells with chromosomes
Answer:
B
Explanation:
theyre all different bcz of genetic variation
Which statement below correctly summarizes cellular respiration?
A Using oxygen, cells absorb sunlight and produce glucose.
B ATP is produced in the mitochondria in the absence of oxygen.
C Water is absorbed by the mitochondria, the water is split up into hydrogen and oxygen atoms, and ATP is made.
D Cellular respiration begins with glucose. With the addition of oxygen, energy is made in the form of ATP.
Answer:
D
Explanation:
It all begins with glucose.
State the career function of automobile engineering
Answer:
Automotive engineers work as part of a team responsible for vehicle design, development, manufacture and testing. Automotive engineers are involved in the design, manufacture, distribution, marketing, sales and after-sales care of cars (including racing cars), motorbikes and other commercial vehicle's
explain why the suspension of isolated chloroplasts became alkaline when illuminated?
Answer:
Yes, protons are pumped across the membrane, but flow right back again through the ATP synthase. More important is that illumination is required for carbon fixation. As photosynthesis runs, the chloroplasts remove CO2 from the water they are suspended in. In solution, CO2 forms carbonic acid, so removing CO2 will reduce the level of carbonic acid, raising the pH.
Explanation:
Chloroplasts are the primary cell organelles involved in the conversion of light energy into stable chemical energy through photosynthesis. The chloroplasts will become alkaline due to a rise in pH and a reduction in carbon dioxide.
Chloroplast is the green-colored cell organelle, primarily involved in the conversion of light energy into chemical energy.
When the isolated chloroplasts are illuminated, the suspension in which chloroplasts are suspended becomes alkaline. It is assumed that protons are pumped in from the medium to the thylakoids.
As photosynthesis takes place, the chloroplasts remove carbon dioxide from the suspension, which causes an increase in the pH of the suspension.
Therefore, the formation of carbonic acid from the CO2 will raise the pH.
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4 po
Which of the following would be the complimentary strand of DNA if it
was REPLICATED? AAT CAT GGA *
O A. AAT CAT GGA
O B.TTA GTA CCT
OC.UUA GUA CCU
D. GGA TAU CỦA
A strand of mRNA has the bases adenine-cytosine-uracil. Which amino acid
corresponds to these bases?
Answer:
ACU - Thr
Explanation:
apesc
Answer:
The answer would be Thr
Explanation:
A.P.E.X
what is a large structure that directs the cell’s activities and contains DNA?
Answer:
That would be the nucleus!
Explanation:
write an equation in slope intercept form slope 1 passes through (0,7)
Answer:
y = 1x+7
Explanation:
what organelle directs cellular activity and stores chromatin
Answer:
Typically, the nucleus is the most prominent organelle in a cell (Figure 1). The nucleus (plural = nuclei) houses the cell's DNA in the form of chromatin and directs the synthesis of ribosomes and proteins.
Explanation:
Nucleus is the potential organelle directs cellular activity and stores chromatin.
what are the function of nucleus in a cell ?Nucleus is the most integral component, a double membraned cell organelle which carry all genetic material of the cell.
It regulates the growth and reproduction of the cell as it contain the genetic information.
It involve in duplication of DNA in the nucleus called as DNA Replication by producing the copies of DNA .
It has a major role in cell division like mitosis and meiosis.
It is the site of transcription which produces different types of RNA from DNA.
A special site in the nucleus called the nucleolus a non-membrane-bound condensed region of chromatin involved in active ribosomal RNA synthesis.
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distinguish between the geosphere and hydrosphere
Which layer is between the asthenosphere and the outer core?
A. Crust
B. Inner core
C. Lithosphere
D. Mesosphere
Answer:
D. Mesosphere
Explanation:
What fusion process is occurring in the star Procyon B?
Answer:
Procyon B's progenitor star most likely had around 2.59 solar masses. Estimates suggest that the star spent about 680 million years on the main-sequence, fusing hydrogen in its core. It evolved into a giant and lost much of its mass due to stellar winds
Explanation:
Besides helping to discover the structure of DNA, describe two other contributions Rosalind Franklin made to the world of science.
Answer: Rosalind Franklin discovered the density of DNA and, more importantly, established that the molecule existed in a helical conformation. Her work to make clearer X-ray patterns of DNA molecules laid the foundation for James Watson and Francis Crick's suggestion that DNA is a double-helix polymer in 1953.
Explanation:
Rosalind Franklin made numerous contributions to science in addition to helping to discover the structure of DNA, and in the field of virology, in coal-based materials, by using X-ray crystallography, in agriculture, etc.
What is the contribution of Rosalind Franklin?She was one of the greatest scientists who made significant contributions to the field of DNA by using X-ray crystallography, and apart from that, she also made contributions to the field of virology. As X-ray diffraction facilitates the study of the structure of viruses such as the tobacco mosaic virus and the polio virus and helps in understanding the replication of viruses, it is also helpful in the study of the structure of coal and other carbon-based materials.
Hence, Rosalind Franklin made numerous contributions to science in addition to helping to discover the structure of DNA, and in the field of virology, in coal-based materials, by using X-ray crystallography, in agriculture, etc.
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n
How does water heat Earth?
Water traps heat and holds it deep inside the ocean.
Water transports nutrients and waste.
Water carries heat from the equator toward the poles.
Water from rainfall on land starts in the ocean.
Answer:
Water transport nutrients and waste
Answer:
water transport nutrients and waste i think
Explanation:
i think its right
what product of the light dependent reaction of photosynthesis is utilized in the light independent reaction
Answer:
In the light-independent reactions or Calvin cycle, the energized electrons from the light-dependent reactions provide the energy to form carbohydrates from carbon dioxide molecules. The light-independent reactions are sometimes called the Calvin cycle because of the cyclical nature of the process.Explain how beaches are created.
Answer:
The waves erode seashells and rocks on the shore into small granuels called sand.
Explanation:
Suppose insects that feed on the plants were placed inside the growth chamber as well. Predict how this might affect the levels of CO2 in the growth chamber. How does this model, on a smaller scale, represent the cycling of carbon through Earth's systems?
Answer:
This question is incomplete
Explanation:
This question is incomplete because of the absence of the diagram illustrating the growth chamber. However, since insects also produce/exhale carbon dioxide (CO₂) as a waste product, the level of CO₂ in the growth chamber will increase since insects will serve as an additional source for the production of CO₂.
This model shows how carbon is been cycled though the earth's systems. The CO₂ released/exhaled by animals is been inhaled by plants and used for the production of food substance like glucose (through the process of photosynthesis). Animals eat these plants and then release carbon from these food sources as CO₂ which is taken up from the environment again by plants.
some one plz help me asapp I will give brainliest
what conclusion can you make regarding how humans affect biodiversity? use evidence from the graph to support your answer
Answer:
humans have a large affect on biodiversity.
this is due to human activities that interact with biodiversity such as deforestation and over fishing
A random mutation occurs and the GGA codon is changed to CGA. What effect does this
substitution have on the amino acid being called for? Explain your answer.
Answer:
The replacement of a base at a codon, as occurs when the GGA codon is changed to CGA, causes a change in the amino acid glycine to arginine.
Explanation:
Nitrogen base changes in a codon usually result from base changes in the DNA before transcription into messenger RNA, called point gene mutations.
In the case presented, the substitution of the guanine base by cytosine in the GGA codon —resulting in a CGA codon— generates a change in the coding amino acid, resulting in arginine instead of glycine.
The change of an amino acid in a peptide or protein can mean an alteration in the structure or function of these molecules.
Because an amino acid can be encoded by several codons, changes of a nitrogen base at a codon sometimes do not involve changes in the amino acid sequence of a protein.
The replacement of a base at a codon, as occurs when the GGA codon is changed to CGA, causes a change in the amino acid glycine to arginine.
Due to Base Substitutions Mutations.
What happens when a mutation changes a codon?
A nonsense mutation refers to a base substitution in which the changed nucleotide transforms the codon into a stop codon.
Such a modification leads to a premature termination of translation, which can badly affect the formation of proteins.
Thus, Base Substitutions Mutations take place.
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The primary reason organisms require large amounts of carbohydrates (sugars
and starches):
Answer:
Is to supply energy for their metabolic activities
Explanation:
FORENSIC SCIENCE!
If you would like to reveal a latent fingerprint on a door where the door frame is dark brown and the surrounding wall is dark green, what powder should you use?
Group of answer choices
fluorescent
ninhidrate
superglue fuming
Answer:
if we like to reveal the latent fingerprint on a door frame dark brown and surrounding wall is dark green then Fluorescent is used.
Help me please I need help
Answer:
D
Explanation:
Answer:
DNA
Explanation:
Common knowledge
Is this right??? 2. Select all that are Halogens
beryllium
Carbon
Chlorine
Sulfur
lodine
Copper
Krypton
Answer:
chlorine, iodineExplanation:
halogens are those belonging to 17th group in a modern periodic table....
The diagram below shows two different forces acting on a cyclist riding a bicycle the total mass of the cyclist and the bicycle is 100.0 kg based on information what is the acceleration of the cyclist?
Answer:b
Explanation:
The diagram below shows two different forces acting on a cyclist riding a bicycle is 150 N and another force acting opposite to moving cycle is 84 N the total mass of the cyclist and the bicycle is 100.0 kg based on information. Thus, option B is correct.
How net force will be calculated?
The net force acting on the bicycle is:-
F net = Total force acting on bicycle
In above question,
Given the F1 = 150 N and F2 = -84 N (Negative sign shows that force is acting opposite to the motion)
So,
Fnet = F1 + F2
Fnet = 150 N -84 N
Fnet = 66 N
Now the acceleration will be
Fnet = mass X acceleration
In above question,
Fnet = 66 N
Mass = 100 Kg
So,
Acceleration = Fnet/Mass
Acceleration = 66/100
Acceleration = 0.66 m/sec^2
Therefore, The diagram below shows two different forces acting on a cyclist riding a bicycle is 150 N and another force acting opposite to moving cycle is 84 N the total mass of the cyclist and the bicycle is 100.0 kg based on information. Thus, option B is correct.
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Can someone please do this?? I'll give you Brainliest...
Explanation:
DNA is a self replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information
RNA is a nucleic acid present in all living cells. Its role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins
Nucleic acid is a complex organic substance present in loving cells, especially DNA and RNA, whose molecules consist of many nucleotides liked in a long chain
*
1. The_regulates what goes in and out of the cell.
cytoplasm
ribosomes
cell membrane
nucleus
Answer:
cell membrane
Explanation:
it controls what comes in an out of the cell if its a plant cell you would have the ell wall as well
7. CASE STUDY For Biosphere 2 to meet its goal, why was it necessary for it to replicate a
variety of climates?
Answer:
For Biosphere 2 to meet its goal, it was necessary to replicate a variety of climates. The original goal was to provide a successful model for human space colonies, and with this goal in mind, scientists and engineers built prototypes of several environments that can replicate the real-life climates (in order to see how the complex processes work). This provides a viable ecological system in outer space. In the model, there are different climates used to see how different factors of the Earth affect each other.
Explanation:
This answer was formed with help from Slader.an organism that obtains energy by feeding on other organisms
Answer:
Heterotrophs/ or consumers
Explanation:
Heterotrophs, or consumers, are organisms that must obtain energy by consuming other organisms (autotrophs or other heterotrophs) as food.
What type of protist is an amoeba and how does it move?
Answer:
Explanation:
An amoeba is a classification of protist (single-celled eukaryotic organism that is neither plant, animal, bacteria, nor fungus) that are amorphous in shape. They move via forming 'feet-like' pseudopodia, which are also used for feeding.
Answer:
Explanation: Amoeba and sarcodines are examples of protists that move by pseudopods. Some animal-like protists move by using cilia. Cilia are hair-like projections that move with a wave-like pattern. The cilia move like tiny oars to sweep food toward the organism or to move the organism through water.