Name three components of the cell membrane and explain how each contributes the semipermeable nature of the membrane.
The principal components of the plasma membrane are lipids ( phospholipids and cholesterol), proteins, and carbohydrates. The plasma membrane protects intracellular components from the extracellular environment. The plasma membrane mediates cellular processes by regulating the materials that enter and exit the cell.
The length of the side of square A is hall
the length of the side of square Bo what is
Ratio of the perimeter of square is
to the perimeter of square A.
the
Answer:
1•4 is the correct answer
Which equations are balanced? Select all that appl
Answer:
B
D
F
Explanation:
a difference between bacterial and eukaryotic transcription
Answer:
According to Wikipedia, In bacteria, transcription and translation can occur simultaneously in the cytoplasm of the cell, whereas in eukaryotes transcription occurs in the nucleus and translation occurs in the cytoplasm.
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The difference between bacterial and eukaryotic transcription is that in bacteria, transcription and translation can occur simultaneously in the cytoplasm of the cell, whereas in eukaryotes transcription occurs in the nucleus and translation occurs in the cytoplasm.
What is the difference between eukaryotes and prokaryotes?The main difference between eukaryotes and prokaryotes is that the eukaryotes are well developed and advanced and have different cell organelles and they have different functions in the cell and the prokaryotes are not well developed and they are found in the unicellular organisms.
The unicellular organisms are made of one cell and carry out the processes of life as a single cell and the multicellular organisms are made up of two or more cells that have specific functions to contribute to the life processes.
Therefore, The difference between bacterial and eukaryotic transcription is that in bacteria, transcription and translation can occur simultaneously in the cytoplasm of the cell, whereas in eukaryotes transcription occurs in the nucleus and translation occurs in the cytoplasm.
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A population of beetles is mostly composed of individuals with the dominant green color, but there are several with the recessive brown
color. A displaced species of bird moves into the habitat and preferentially preys upon the green beetles. Over time, what can be expected
to happen to the beetle population?
O A. The beetles will migrate to avoid being eaten by the birds in the habitat.
OB. The beetle population will become extinct.
O C. The beetle population will stabilize because the birds will not eat more beetles than necessary to maintain ecological balance.
O D. The brown beetles will become more common.
The green beetles will decrease in number while the brown beetles will become more common.
According to Darwin's theory of evolution, organisms that are better adapted to their environment are able to live longer and survive long enough to reproduce thereby perpetuating their favorable characteristics in the population.
Since the green beetles are more common but they are preferentially preyed upon by the invasive bird species, the green beetles will decrease in number while the brown beetles will become more common.
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The prokaryotic group that tends to inhabit extreme environments belongs to ________. A. Bacteria B. Euglena C. Protista D. Archaea
Answer:
D. Archaea
Explanation:
The prokaryotic group that tends to inhabit extreme environments belongs to Archaea.
The Archaea are prokaryotes that inhabit extreme environments, such as inside volcanoes, while Bacteria are more common organisms, such as E. coli.
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What are the two types of force in simple machine?
Answer:
there are many..
Explanation:
wheel and axel are two type of forces in simple macine
Explanation:
any two types of force are : contact force & frictional force.
hope this helps you.
I’ll give brain
Drag the tiles to the correct boxes to complete the pairs.
What is the function of each lymph organ?
The last drop-down box is spleen which you can’t see in the picture.
Answer: The primary lymphoid organs are the red bone marrow, in which blood and immune cells are produced, and the thymus, where T-lymphocytes mature. The lymph nodes and spleen are the major secondary lymphoid organs; they filter out pathogens and maintain the population of mature lymphocytes
Explanation: hope this helps bye :)
What is needed by all living things to carry out all of life's processes?
Answer:
Living organisms need energy to carry out all of life's processes.
As organisms release energy during cellular respiration, carbon dioxide is produced from the carbon in energy storage molecules. This process moves carbon from biotic to ________________ a the producers b the decomposers c abiotic matter
Answer:
Abiotic Matter
Explanation:
The Mississippi river carries sediments into the Gulf of Mexico. What do you think will happen to the sediments after a few million years?.
Answer:
Explanation:
The Mississippi River carries tons of tiny rock fragments called sediments into the Gulf of Mexico. What do you think will happen to these sediments after a few million years? Gizmo Warm-up Over millions of years, rocks are broken down and transformed into other rocks. The Mississippi river carries sediments into the Gulf of Mexico. What do you think will happen to the sediments after. The Mississippi river carries sediments into the Gulf of Mexico. What do you think will happen to the sediments after a few million years?
Biology questionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Answer:
3rd one
Explanation:
Answer:
c. firewood
Explanation:
its a chemical reaction
If the birth rate and death rate are balanced in a population, how might a population increase in size?
a. By doubling
b. By emigration
c. By immigration
d. By an increase in density
Can you please help me
I am here to give the brainiest answer not to get points
Answer: yes
If laco were mutated, what effect would this have on lactose metabolism?
Answer:
If lacO were mutated, what effect would this have on lactose metabolism? The repressor would not properly bind to the operator, and the lac operon would be over expressed. How does the cell recognize that lactose needs to be metabolized? Lactose is converted into allolactose, which inhibits the lac repressor.
Explanation:
how will you select and grow a resistant strain of e. coli in this experiment?
Streptomycin treatment is used in medicine. It s growth is to expose a sample of E.coli to streptomycin by innoculating it into a streptomycin positive plate. any colonies that grow will carry a mutation for resistance.
Streptomycin treatment is known to boast or increase the growth of E. coli by nitrate respiration.Streptomycin is simply regarded as an antibiotic which is often used to treat moderate to severe tuberculosis, pneumonia, E. coli, etc.
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How will you select and grow a resistant strain of E.coli in this experiment?multiple choice:
(1). expose a sample of E.coli to streptomycin by innoculating it into a streptomycin positive plate. any colonies that grow will carry a mutation for resistance,
(2.) expose a sample of E.coli to sterptomycin by innoculating it into a streptomycin negative plate, any colonies that grow will carry a mutation for resistance,
(3.) samples of bacteria are taken from the culture and observed under a microscope for signs of susceptibility or resistance. those that are resistant are separated and plated.
(4.) a culture of E.coli will be mixed with streptomycin so that the antibiotic can alter the genetic composition of the bacteria
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Identify the muscle(s) that is/are primarily responsible for holding the head of the humerus in the glenoid cavity.
Help quick!!!!!! In dire need 1st and the correct answer gets brainliest.
Answer:
they can all be applied to other plants.
Which biome are the best suited for agriculture? Explain why each of the biomes you did not specify is less suitable for agriculture.
cultivation of plant populations of a single species
where does the electron transport chain get the high-energy electrons that are passed down the chain
Answer:
It gets the electrons from NADH and FADH2, which are produced in the Krebs cycle.
Explanation:
pls helppppppppppp really need help
Answer:
16: Genes
17: Proteins
18: Offspring
19: Blueprint
20: Code, Dna, Rna
Explanation:
I hope this helps :)
the most prevalent type of antibody in the blood is
Answer:
IgG is the most abundant antibody isotype in the blood (plasma), accounting for 70-75% of human immunoglobulins (antibodies). IgG detoxifies harmful substances and is important in the recognition of antigen-antibody complexes by leukocytes and macrophages.
Explanation:
IgG is the most abundant antibody isotype in the blood (plasma
What is the surgery that involves trimming excess prostate tissue in order to treat urinary problems that are caused by an enlarged prostate?
Answer:
d. TURP is correct
Explanation: Transurethral resection of the prostate
organism that makes its own food
Answer:
Explanation:
autotrophs
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.
Recall what you know about hypertonic, hypotonic, and isotonic solutions. When an environment is hypotonic, what happens
to the cell?
When a cell is submerged in a hypotonic solution, water osmosis causes the cell to become flaccid.
What is osmosis?
A semi-permeable membrane is used in the process of osmosis, which allows solvent molecules to move from a solution of low concentration to a solution of high concentration.
Osmosis is a passive process that doesn't require any energy to complete. In order for the concentrations on either side of the membrane to be equal, molecules must shift from an area of greater concentration to one of lower concentration.
Any solvent, including gases and supercritical liquids, can go through the osmosis process.
When solute concentrations inside and outside of the cell are equal, an isotonic solution has been created.When the concentration of solutes outside the cell is higher than within, the solution is said to be hypertonic. When the concentration of solutes inside the cell is higher than outside, the solution is said to be hypotonic.
Therefore, when a cell is submerged in a hypotonic solution, water osmosis causes the cell to become flaccid.
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Underground stem of which of the following does not store food? a)Zaminkand
b)Colocasia
c)Turmeric
d)Asparagus
Answer:
asparagus doesn't store food.
How is genomics related to genes and DNA?
Answer:
A gene consists of enough DNA to code for one protein, and a genome is simply the sum total of an organism's DNA.
Genomic DNA, or gDNA, is the chromosomal DNA of an organism, representing the bulk of its genetic material. ... In research, genomic DNA is useful tools in applications such as PCR, library construction, Southern blotting, hybridizations, SNP analysis, and molecular diagnostic assays.
Answer:
DNA
DNA is the molecule that is the hereditary material in all living cells.
Genes are made of DNA, and so is the genome itself. A gene consists of enough DNA to code for one protein, and a genome is simply the sum total of an organism's DNA.
DNA is long and skinny, capable of contorting like a circus performer when it winds into chromosomes. It's skinny as a whip and smart as one too, containing all the information necessary to build a living organism. In a very real sense, DNA is information.
WHAT IS DNA MADE OF?
DNA is a very large molecule, made up of smaller units called nucleotides that are strung together in a row, making a DNA molecule thousands of times longer than it is wide.
Each nucleotide has three parts: a sugar molecule, a phosphate molecule, and a structure called a nitrogenous base. The nitrogenous base is the part of the nucleotide that carries genetic information, so the words "nucleotide" and "base" are often used interchangeably. The bases found in DNA come in four varieties: adenine, cytosine, guanine, and thymine—often abbreviated as A, C, G, and T, the letters of the genetic alphabet.
How did people find out that DNA is the hereditary material?
DNA was largely ignored for decades after a German chemist, Friedrich Miescher, first isolated the white, slightly acidic substance from the nucleus of cells in 1869. No one knew what DNA's function was—in fact, some doubted that it had a function at all—so they pretty much left the stuff alone.
Very few people thought that DNA could be the hereditary material. Early studies of DNA suggested, erroneously, that the molecule was made up of the same sequence of four bases repeated over and over—ACGTACGTACGT… for example. No one could imagine how such a monotonously simple molecule could contain the information necessary to build a living organism.
But during the 1930s and 1940s, new experiments began to suggest that DNA might, in fact, be important. It turned out that different strains of bacteria can exchange DNA and that when they do certain traits, such as the ability to cause disease in humans, can be passed from one strain of bacteria to another. Scientists also learned that when a virus infects a cell it injects its DNA into the cell, which then produces many copies of the virus, suggesting that DNA contains instructions for building viruses. And they found that different species of organisms have different proportions of bases in their DNA—one species might have DNA that is 30 percent A, 20 percent C, 20 percent G, and 30 percent T, while another might have 20 percent A, 30 percent C, 30 percent G, and 20 percent T. People began to think that genetic information might be written in the differences between the DNA bases of different species.
What does DNA look like?
A DNA molecule is a double helix, a structure that looks much like a ladder twisted into a spiral. The sides of the ladder are made of alternating sugar and phosphate molecules, the sugar of one nucleotide linked to the phosphate of the next. DNA is often said to have a sugar and phosphate "backbone."
Each rung of the ladder is made of two nitrogenous bases linked together in the middle. The length of a DNA molecule is often measured in "base pairs," or bp—that is, the number of rungs in the ladder. Sometimes, this unit of measurement is shortened simply to "bases."The structure of DNA was worked out in 1953 by James D. Watson and Francis Crick, who worked together in the Cavendish laboratory in Cambridge, England. By the time they began their work in the early 1950s, it was clear that DNA is the hereditary material, and scientists were racing to find out more about the long-ignored molecule, picking apart the implications of each new detail. Everyone knew they couldn't really understand how DNA works until they understood how its nucleotide building blocks are put together.
(Im a Really fast Typer and Thinker)
Give two ways that differentiation is the same in plants and animal.
Differentiation in plants and animals involves the specialization of cells for specific functions, and it results in the development of different tissues and organs.
What is differentiation in plants and animals?Differentiation refers to the process by which cells become specialized in structure and function. In plants and animals, this process occurs during development and results in the formation of different types of cells, tissues, and organs.
During differentiation, cells undergo changes in gene expression, which leads to the production of different types of proteins and other molecules. These changes can be triggered by various signals, such as hormones, growth factors, and environmental cues.
In animals, differentiation occurs during embryonic development and results in the formation of different types of tissues, such as muscle, bone, and nerve tissue. In plants, differentiation occurs during both embryonic development and growth and results in the formation of different types of tissues, such as root tissue, leaf tissue, and stem tissue.
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they overcame by the blood of the lamb and the word of their testimony
Answer:
Revelation 12:11