what is a cell membrane?

Answers

Answer 1

Answer:

The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm.

Explanation:

Answer 2

Answer:

Short. The semipermeable membrane surrounding the cytoplasm of a cell.

Long. The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm. The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid.

Explanation:


Related Questions

The process of photosynthesis converts carbon atoms from carbon dioxide into

Answers

Sugar
It for plant to eat

Which of the following solutions would have solute concentration that is lower than the concentration found inside the cell

Answers

Answer:

hypotonic solution

A hypotonic solution has a lower solute concentration than inside the cell (the prefix hypo is Latin for under or below). The difference in concentration between the compartments causes water to enter the cell.

Thank you and please rate me as brainliest as it will help me to level up

Answer:

A. Hypotonic Solution

PLZ HELP (30 POINTS)




Which of the following is a direct benefit of using agriscience to optimize land use for animal grazing?

Reducing soil degradation
Inventing new fertilizers
Updating irrigation
Increasing climate change

Answers

Answer: The answer is D Increasing climate change

Explanation: Which of the following is a direct benefit of using agriscience to optimize land use for animal grazing? hope this helps man

D

Explanation:

i think that's the answer

Helppp please
Which federal agency, formed in 1977, now combines regulation and other aspects of the energy industry that were
previously scattered under several other agencies?

O Occupational Safety and Health Administration

O Mine Safety and Health Administration

OU.S. Energy Information Office

o Department of Energy

Answers

D. Department of Energy (DOE)

Explanation: The DOE has been officially in charge of all aspects of energy since 1977; their activities prior to this were assigned to various different government agencies.

Answer:  The correct answer is Department of Energy (DOE)

Explanation:  This answer has been confirmed correct.

17. Match the major types of cancer with the types of cells they occur in
Adenocarcinomas
a. The lowest layer of the epidermis (skin)
Basal cell carcinoma
b. upper layers of skin, the lining of stomach, lungs,
kidneys
Squamous cell carcinoma
c. melanin-producing cells of the skin
Sarcoma
d. immune cells in the blood (T cells, B cells, and
bone marrow)
Leukemia and lymphoma
e. bones, fat, blood vessels, tendons, ligaments
Multiple myeloma
1. cells that produce fluids (breast, colon)
Melanoma
g. plasma cells (a type of immune cells)​

Answers

LolsbdgsbcgcsnnsjzkmcjMCk

1.
2.
3.
4.
What is the Answer?

Answers

Answer:

the answer is 3

Explanation:

An earthquake occurred three hundred miles off the shoreline, and massive flooding occurred on land as a result.
Which best describes what occurred?
- Continental shifting resulted in a tsunami.
- Continental shifting resulted in a volcano erupting.
- Tidal activity in the subduction zone caused a tsunami.
- Tidal activity in the subduction zone caused a volcano to erupt.

Answers

Answer:

An earthquake occurred three hundred miles off the shoreline, and massive flooding occurred on land as a result. Which best describes what occurred? Continental shifting resulted in a tsunami.

Explanation:

The best thing that describes the scenario that occurred is tidal activity in the subduction zone caused a tsunami. The correct option is C.

What is tsunami?

The violent breaking of rock during an earthquake releases energy that travels through the earth in the form of resonance known as seismic waves.

These seismic waves radiate from the hypocenter in all directions, becoming weaker as they travel further away from the hypocenter.

Tsunamis are a series of large waves with extremely long wavelengths and periods that are usually caused by a violent, impulsive undersea disturbance or activity near the coast or in the ocean.

When a large earthquake ruptures, the faulting can cause vertical slip large enough to disturb the overlying ocean, causing a tsunami to travel in all directions.

Thus, the correct option is C.

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It is not the number of different nucleotides, but the ________________ that is important in the ability of DNA to code for all the variability of organisms.

I'll mark brainlest

Answers

Answer:

discupa eu não sei

uma bela noite abençoe

Hemoglobin is:
1) hormone;
2) Enzyme
3) protein;
4) Amino acid


HELPPP PLEASE!!!!

Answers

Answer:

The oxygen- carrying pigment and predominant protein in the RBC.

explain how darwin's journey to the galapagos islands contributed to his creation of the theory of evolutions.

Answers

Explanation:

During his visit to the islands, Darwin noted that the unique creatures were similar from island to island, but perfectly adapted to their environments which led him to ponder the origin of the islands' inhabitants.

Among those that struck Darwin so greatly were the finches that are now named in his honor. Darwin would later base some of his thought from the supposing that these finches were all descendents of the same lineage.

what is the complementary dna strand of C-C-T-A-G-C-T

Answers

Answer:

G-G-A-T-C-G-A

Explanation:

The A-T pairs are connected by two hydrogen bonds, while the G-C pairs are connected by three hydrogen bonds.

A human liver cell has a different size and shape from a human muscle cell. What is the best explanation for these differences?
A. The cells perform different functions.
OB. One of the cells is used to reproduce more cells while the other is not.
OC. One type of cell develops into the other type of cell.
OD. One of the cells must have come from another species.

Answers

Answer:

A

Explanation:

A human liver cell would have a different size and shape from a human muscle cell because they perform different functions in the body.

The shape a cell would assume and its size depends on the function the cell performs. The functions of the liver in the body of humans differ greatly from the functions of muscles. While the former helps in detoxification, deamination, digestion, etc., the latter helps in support, movement, etc.

The correct option is A.

A human liver cell has a different size and shape from a human muscle cell because the cells perform different functions.

CELL:

Cell is the basic and fundamental unit of life. It is the simplest level of organization of an organism.

Cells contain organelles that help them perform specific functions. Organs are made up of numerous cells.

Similar cells perform similar functions while dissimilar cells perform dissimilar functions.

Therefore, a human liver cell has a different size and shape from a human muscle cell because the cells perform different functions.

Learn more at: https://brainly.com/question/22663686?referrer=searchResults

Which is an example of active transport?
a
Cells move sugar into their cells with energy
Water moves from where there is more water to where there is less
b
с
Salt moves from a 15% solution to a 2% solution
d
Dye moves from where it is dropped throughout an entire glass of water

Answers

Answer:

с ) Salt moves from a 15% solution to a 2% solution

Explanation:

In active transport, the particles move across a cell membrane from a lower concentration to a higher concentration. Active transport is the energy-requiring process of pumping molecules and ions across membranes "uphill" - against a concentration gradient.Aug 14, 2020

In the United States, most racial discrimination comes in the form of ________ discrimination.

A. Direct
B. overt
C. indirect
D. extra​

Answers

Answer:

C, indirect because most people do not admit that they are racist and claim that they didn't do things because they're racist.

Explanation:

In the United States, most racial discrimination comes in the form of indirect discrimination. Therefore, option C is the correct option.

What is indirect discrimination?

Indirect discrimination involves the policies or practices that appear neutral on the surface, but deep down have adverse effects on the people belonging to a particular race.

Indirect discrimination can be seen in various areas, such as employment. During a job vacancy, the job applicant requires to speak a high level of proficient English which appears to be a reasonable requirement for the job, but it can lead to a significant impact on non-native English speakers.

Indirect discrimination can be seen in the education field where schools give admissions to only those students who will qualify for a specific education test which may seem unfair to students belonging to a specific race, and having different educational backgrounds.

Therefore, indirect discrimination is the most common form of discrimination observed in the United States.

Learn more about indirect discrimination here:

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Cellular respiration is a process in which animal cells use ____ taken in from the atmosphere.

1) carbon dioxide

2) hydrogen

3) oxygen

Answers

Answer:

How does cellular respiration work in animals?

When an animal breathes, it takes in oxygen gas and releases carbon dioxide gas into the atmosphere. This carbon dioxide is a waste product produced by the animal's cells during cellular respiration. Cellular respiration occurs in the individual cells. Digested foods have chemical energy stored in them.

Explanation:

1) carbon dioxide I think hope it helps

PLEASE HELP
the question is in the pic

Answers

the answer is genetic variation because crossing over leads to changing the traits inherited by the daughter cells

Someone please help!!! Anyone!?!? I'll give A Brainliest

Answers

Answer:

These are Punnet squares. The answer for 1 is 50% The answer for 2 is 100%

The answer for 3 is 100%

Explanation:

I hope this helps!! Have a great day!!!

Which refers to the sum of all the forces that act upon an object?

A. net force

B. absolute force

C. balanced force

D. positive force

Answers

Answer:

Net force

Explanation:

Net force is the vector sum of forces acting on a particle or body. The net force is a single force that replaces the effect of the original forces on the particle's motion. It gives the particle the same acceleration as all those actual forces together as described by the Newton's second law of motion.

Answer:

net force

Explanation:

Multiple Choice Question:

Metabolizing proteins refers to breaking them down and changing them so that your body can use them. if you eat an egg, the proteins in the egg must be ______________ for use

A. metabolized
B. plagerized
C. synthesized

Answers

Answer:

A, metabolized

Explanation:

^^ Hopefully this helps!

Three samples of cells from three different patients were unlabelled. One sample was from an 85-year-old man, one was from a 5-year-old boy, and one was from a person with skin cancer. How could you determine to which patient they belonged?

Answers

The 85 year old man will have shorter telomeres.

The 5 year old will have long telomeres.

The person with skin cancer will have an abnormal karyotype and abnormal nucleus shape and size during interphase.

4. Which is an example of a fungus?
O blue-green algae
slime mold
O bread mold
O brown algae

Answers

Answer:

Bread mold is an example of a fungus.

hope it helps!

to which class of macromelules do anitbodies belong to

Pls answer now I am giving 40 points

Answers

Answer

:proteins

The four classes of macromolecules are carbohydrates, proteins, nucleic acids, and lipids. These biomolecules can also be referred to as polymers. In turn, we will discuss how these four classes of macromolecules are synthesized in the cell from their constituent building blocks or monomers.

Explanation:

Antibody Classes. Antibodies can be divided into five classes—IgM, IgG, IgA, IgD, IgE—based on their physiochemical, structural, and immunological properties. IgGs, which make up about 80 percent of all antibodies, have heavy chains that consist of one variable domain and three identical constant domains.

Answer:

Antibodies are proteins. An antibody (Ab), also known as an immunoglobulin (Ig), is a large Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize foreign objects such as bacteria and viruses

Explanation:

What is the definition of cell

Answers

Answer:

Small and sparsely furnished room, especially in a prison or convent.

"the detainees are together in cells with capacity for four or five people"

Cell of a honeycomb.

Explanation:

I hope to help you

The definition of a cell: The basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.

If two different species belong to the same family, then they also belong to the same _______. *
Kingdom
Class
Order
All of the above are correct

Answers

Answer:

All of the above

Explanation:

The order is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

If it is a smaller one it is always in the ones above it.

- Lee el siguiente párrafo y a continuación responde lo que se te pide.Los seres humanos primitivos comenzaron a clasificar las plantas y los animales tanto por su utilidad como por el daño que les causaban, luego fueron profundizando aún más en sus conocimientos sobre la flora y la fauna de su entorno, identificando los ciclos biológicos y hábitat, entre otros aspectos que facilitaron su producción y pronta disponibilidad. Con base en el párrafo anterior se puede afirmar que: * 1 punto A) Empezaron a entablar una relación más estrecha con el medio ambiente. B) Abandonaron su vida primitiva y nómada C) Incrementaron sus conocimientos únicamente sobre el ciclo del agua. D) Empezaron la agricultura y la piscicultura.

Answers

Answer:

A) Empezaron a entablar una relación más estrecha con el medio ambiente.

Explanation:

Desde el pasaje, podemos ver que la gente comenzó a prestar más atención a su entorno y cómo la fauna y la flora afectan la vida humana.

Incluso intentaron desarrollar un sistema burdo de clasificación biológica. Henec, se puede inferir que las personas desarrollaron una relación más cercana con su entorno.

the other liquid waste product in cellular respiration is

Answers

Answer: During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates. Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.

Explanation: Hope dis helps :)))))  

Answer:

the waste products are carbon dioxide and water

A _____
wave can travel in the absence of matter.
a. light
b.sound
c.seismic
d.water

Answers

The answer is b

Because it’s an electromagnetic wave in means it can transport energy through a region of space void of matter. To make it clear you can’t hear sound in space you can only see is light electromagnetic only transfer light.
I hope this helps
Common sense is b fs

HELP!!!!15 POINTS!!!!!!

i think it's f but idk..

Answers

Answer:

F is good

Explanation:

F is a very good choice

Summarize the possible applications of gene knockout GMOs.

Answers

Answer:

This method involves creating a DNA construct containing the desired mutation. For knockout purposes, this typically involves a drug resistance marker in place of the desired knockout gene. ... This method then relies on the cell's own repair mechanisms to recombine the DNA construct into the existing DNA.

Explanation:

This method involves creating a DNA construct containing the desired mutation. For knockout purposes, this typically involves a drug resistance marker in place of the desired knockout gene. ... This method then relies on the cell's own repair mechanisms to recombine the DNA construct into the existing DNA.

Baby Brain Power
How does the bar graph on page 5 expand on
information presented in the passage?
It shows exactly how many synapses a person's
brain has at birth
Speech, emotional regulation, movement, and
vision-all of these extraordinary abilities and
many more are possible thanks to the organ
that serves as the body's control center. When
one thinks of "brain power, it is the faces of
adult inventors, professors, and novelists that
Ekely come to mind. Remarkably the most
critical time period with respect to brain
development occurs relatively soon after an
individual is bom.
A newborn enters the world as a fairly helpless
creature, but her brain hos billions upon
bitions of specialized cells coiled neurons.
It gives more information than the passage by
showing that the number of synapses returns to
what it was at birth.
It provides specific information about how many
synaptic connections are formed in each year of a
person's life.
It gives information about synaptic connections
beyond the time period described in the passage.
2
3
4
5

Answers

Answer:

C

Explanation:

Took it

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