Physical description of a cell membrane?

Answers

Answer 1

Answer:

Cell membrane

Explanation:

A cell membrane is basically a protection of the cells. It controll what goes in and out of the cell and separates the interior of the cell from the outside environment. they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, etc that mediate cellular  activities to pass between organelles.


Related Questions

PLSS ANSWER THANKS <3
The shoulder & hip are examples of what kind of joint?

Answers

Answer: D. ball and socket

Answer:

D) Ball-and-socket

Explanation:

What is weathering and runoff?

Answers

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the earth,water, ice, acids, salts, plants and animals.

Runoff means the portion of precipitation on land that ultimately reaches streams often with dissolved or suspended material.

hope this helps ^ ^

Three molecules of calcium metal and one molecule of nitrogen gas react to form one molecule of solid calcium nitride.

Write the equation

Answers

Answer:

The equation is:

3Ca + N2 → Ca3N2

I NEED HELP PLEASE!! There are two forms of PKD- autosomal Dominant and
autosomal recessive. Since
Aditya has the dominant form,
if he marries a woman with no family history of PKD, what
are the chances their children will inherit the gene? Show
a punnett square to illustrate your answer

Answers

Answer:

Highly likely

Explanation:

ADPKD-AUTOSOMAL DOMINANT POLYCYSTIC KIDNEY DISEASE:-here aditya is affected with ADPKD,and if he marries a women with nofamily history of such disease ,in autosomal dominant PKD,people of this condition are born with one mutated copy of PKD1 OR PKD2 GENES and there are 90% chances that from one affected person with this disease will pass down to the progeny(next generation) and both male and females are equally affected. As for the punnett square, I don't remember those at all, I'm sorry :(

If Aditya has the autosomal dominant form of PKD, he must have inherited at least one copy of the PKD gene from one of his parents. Therefore, Aditya's genotype is either heterozygous (PKD/Pkd) or homozygous dominant (PKD/PKD).

What is PKD?

PKD stands for polycystic kidney disease, which is a genetic disorder that causes multiple cysts to develop in the kidneys. There are two types of PKD: autosomal dominant PKD (ADPKD) and autosomal recessive PKD (ARPKD).

If Aditya marries a woman with no family history of PKD, she is most likely homozygous recessive (pkd/pkd).

Using a Punnett square, we can determine the probability of their children inheriting the PKD gene:

        PKD Pkd

pkd Ppkd Ppkd

pkd Ppkd Ppkd

Each box represents a possible offspring genotype, with the probability of each genotype indicated in the box. From this Punnett square, we can see that:

50% of their children will inherit one copy of the PKD gene (heterozygous, Pkd/pkd)

50% of their children will inherit two copies of the normal gene (homozygous recessive, pkd/pkd)

Therefore, there is a 50% chance that their children will inherit the PKD gene.

To know more about PKD:

https://brainly.com/question/28945253

#SPJ2

18. Jason is an average 15-year-old. His doctor tells him that his blood pressure is 122
over 70. This means that
A. Jason has low blood pressure
B. Jason has high blood pressure
c. Jason's systolic blood pressure is 122 and his diastolic blood pressure is 70
D. Jason's diastolic pressure is 122 and his systolic pressure is 70

Answers

Answer:

B

Explanation:

i think

1.
What are some ways water moves on Earth's surface?
2. What are some ways water moves in Earth's atmosphere?
3. Describe the role of oceans in the water cycle?
4. Describe the role of gravity in the water cycle?
5. How does the sun's energy contribute to the movement of water in the water cycle?

Answer all 6 questions plzzz

Answers

Answer:

1.2The main processes involved in the movement of water between the different reservoirs are evaporation, condensation, transport, precipitation, runoff (water runoff from the ground surface), infiltration and transpiration

3.The large surface of the oceans (about 70 percent of the earth's surface is covered by oceans) favors the occurrence of large-scale evaporation. On a global scale, the same amount of water that is evaporated returns to Earth as precipitation. This however varies geographically

4.Earth from Space Although the engine of the cycle is the solar energy that originates the evaporation of liquid water, and therefore its passage into the atmosphere, the role of gravity is also fundamental, thanks to which precipitation falls and continental waters return to the oceans

5.The water cycle is powered by solar energy. The sun heats the surface of the ocean and other surface waters, which evaporates liquid water and sublimates ice, converting it directly from a solid to a gas. These sun-driven processes move water into the atmosphere in the form of water vapor

Explanation:

read

Water is the most important abiotic factor. The process of evaporation, condensation and precipitation causes the movement of the water in the atmosphere.

What is the movement of the water and water cycle?

Evaporation is the process by which the sun's heat causes the water to evaporate, cooling by the condensation, transportation in the cloud particles, precipitate from the clouds to ground through precipitation, infiltration and transpiration are the process by which the water moves on an in the atmosphere.

Oceans are part of the water cycle as they account for 70% of the earth's surface and major of the water gets evaporated from these surfaces. The precipitate however comes back and hence the cycle continues.

Gravity is the force experienced by the planet and aids the precipitation of the water in the form of rain, hails, snow and sleet from the atmosphere towards the earth's surface.

Sun or solar energy plays an important role in the water cycle as the heat from the sun evaporates the water from different sources by the process of evaporation. It converts the liquid water vapour into gaseous forms.

Therefore, the sun and oceans are part of the water cycle and evaporation is the major part of the water cycle.

Learn more about the water cycle here:

https://brainly.com/question/1151425

Guys please help. I promise I’ll mark brainlyest.

Answers

Answer:COmpound names. Sorry I couldnt help with all. good luck!

Explanation:

LiF-Lithium flouride

BeO-BerylliumOxide

CaCl_2-Calcium Chloride

AlF_2-Difluoroaluminum

CaO-Oxacalcium

MgS-Magnesium sulfate

K_2O-Potassium Oxide

BaCl_2- Barium Chlroide

How do genetic and environmental factors affect the germination of radish seeds?

Answers

Answer:

The ideal temperature for Radish seed germination is between 18°C and 29°C. Air and soil temperature ranges affect Radish seed germination. Air temperatures of about 10 to 18°C will give the best results

Explanation:

The picture below shows some features of the ocean floor. (1 point)

At which of these locations does the ocean floor spread apart to form new oceanic crusts?
Location A
Location B
Location C
Location D

Answers

Answer:

I think the answer should be D

Explanation:

Answer:

It is D

Explanation:

New oceanic crust will form

Please no links
1. When the moon is full, how much of the moon is lit?
A. the entire moon
B. half of the moon
C. a quarter of the moon
D. it depends

Answers

The entire moon is full.

Answer:

I was thinking that the entire moon would be the answer.Because when it is full and clear to see, you can see that it is lit all up.

which of the following capture energy by photosynthesis?

Answers

Answer:

plants

Explanation:

hope this helps:))))))

Answer:

a maple tree

Explanation:

hope this is the answer to your question.

Tell me some thing you learned in honors biology.

What should I study to get to know more about it ?

(I will mark brainliest! <3)

Answers

Explanation:

Honors Biology covers topics typically covered in a high school biology course and prepares students for Advanced Placement Biology. Students study the structures, functions, and processes of living organisms and their interactions with the environment

Plz follow me and Mark me as brainlest please

Which of the following is a characteristic of outer planets?

Close to the sun
Few moons
Have rings
Rocky surfaces

Answers

Answer:

I think is D.

Explanation:

Correct me if I'm wrong.

The correct answer is "Have rings"

The inner planets are known to have rocky surfaces, few moons, and are close to the sun.

On the other hand, outer planets are made out of gas, they have many moons, and are further away from the sun. They are also the only planets known to have rings.

Which are features of Copernicus's model of the solar system? Select the three correct answers.
A.Earth is fixed to a crystalline sphere.
B.All planets orbit the Sun at the same speed.
C.The planets move in perfect circles.
D.The Sun is at the center.
E.The outer planets move in epicycles.
F.The stars are fixed to an outer sphere.​

Answers

Answer:

B, C, F.

Explanation:

Hope this helps!!

Answer:

1. The greater the distance, the slower the orbital velocity

2.The amount of the gravitational force doubles

3.an ellipse that is almost circular

4.0.57

5.The asteroid spirals into the sun, The asteroid continues out of the solar system, The asteroid enters a stable elliptical orbit around the sun

6.The planets move in perfect circles, The Sun is at the center, The stars are fixed to an outer sphere

7.1/√5v

8.The distance to the sun varies

10.the time required to sweep out the areas

11.It explains why Mars appears to move backward for a few months approximately every two years, It shows the Sun at the center of the solar system

12.T^2=r^3

14.Gravitational force increases as the mass of objects increases, The theory applies to all objects in the universe, Gravitational force increases as the distance between objects decreases

Explanation: i just took the test and there 100% of you dont beleave me find out for your self its ok to disagree

The amount of fluid displaced by an object equals the __________ of the object.

Answers

Answer:

Volume

Explanation:

This is a Physics question, and that means we can definitely do some experiment with this.

See Archimedes' law of buoyancy.

during the process of dna replication what would the complimentary strand of the following dna sequence CTA GGT
HELP PLZ!!

Answers

I believe it is GAU CCA

a person has type B blood. What are all the possible blood types of his parents? ​

Answers

Answer:

It could be A and O, AB and A, AB and O or A and B.

Hope this helps! :)

A person has type B blood the possible blood types of his parents can be A x B, A x AB, O x AB, B x AB, AB x AB, B x O, B x B.

What is blood types?

The four main blood types are A, B, AB, and O. Your blood type is determined by the genes your parents gave you.

Red blood cells with blood group A antigens have anti-B plasma antibodies. Plasma from people with blood group B contains anti-A antibodies and B antigens.

Blood group O has both anti-A and anti-B antibodies in the plasma but no antigens. Both A and B antigens are present in blood group AB.

A person with type B blood may have parents who have the blood types A x B, A x AB, O x AB, B x AB, AB x AB, B x O, or B x B.

Thus, these are some of the possible blood types.

For more details regarding blood type, visit:

https://brainly.com/question/275815

#SPJ2

PLSSSSSS CANT GET WRONG PLSSSSS HELPPPP

Process or mechanism by which evolution occurs.

A. Evolution

B. Natural Selection

C. Mutation

D. Adaptation

Answers

B. Natural selection

Natural selection is the most important force of evolution. Other forces of evolution are mutation, gene flow and genetic drift.

Is the classification system of domains and kingdoms the only system that scientists have ever used to classify organisms??? Answer nowww

Answers

Answer:

no

Explanation:

Aristotle developed the first system of classification of animals based off of appearances and habitats.

Answer: 3

Explanation: Hope this help :D

explain how the structure of a book lung allows it to perform its function

Answers

Answer:

Book lungs are within small openings in the abdomen of the arachnid. The book lungs themselves consist of a series of haemolymph filled plate-like structures. Between the plates there is an air space and this allows air to circulate around the plates. Gaseous exchange then occurs through the surface of the plates.

A food web is represented in the diagram below. Which organisms are correctly paired with their
roles in this food web?

A.snakes, grasshoppers - consumers
mushrooms, rabbits - autotrophs
B.all birds, deer - consumers
grasses, trees - producers
C.seeds, bacteria - decomposers
mice, grasses - heterotrophs
D.mountain lions, bark beetles - producers
hawks, mice - heterotrophs

Answers

Answer:

B

Explanation:

The rganisms are correctly paired with their roles in this food web is .seeds, bacteria - decomposers mice, grasses - heterotrophs. Thus, option "C" is correct.

What is  food web?

A food web is an interconnected network of different food chains representing flow of energy and matter within an ecosystem.

The different arrows in a food chain represent organisms being eaten by other organisms, thereby representing flow of energy. It also represents that an animal can consume more than one food type.

Thus, option "C" is correct.

To learn more about  food web click here:

https://brainly.com/question/13823939

#SPJ2

A can of antifreeze spills near a clump of Dryopteris dilatata, a type of fern. The chemical seeps into the ground, endangering the plant's roots. The plant roots grow as far away from the chemical as possible to absorb only fresh water and minerals.
During this process, the roots primarily work in conjunction with which system? a) The immune system to defend against the toxic chemicals
b) The vascular system to reduce the absorption and transport of toxic chemicals
c) The reproductive system to make more root cells
d) The digestive system to create enzymes that break down the toxic chemicals​

Answers

Answer:D

Explanation:

I got it right on my test

Dryopteris dilatata is in family Dryopteridaceae. The movement of plant away from spill the roots primarily work in conjunction with vascular system to reduce the absorption and transport of toxic chemicals.

What is Dryopteris dilatata?

Dryopteris dilatata is a fern mainly located in deciduous or semi-evergreen family, native of Europe.

It can be grown in most cool, moist and light shaded areas. It is also called as broad buckler-fern.

As to avoid antifreeze spills, the plant roots grow far away from the area of spill. During this process roots primarily work with vascular system to reduce absorption and transport of toxic chemicals.

Thus, the correct option is b.

For more information regarding ferns, visit:

https://brainly.com/question/11872310

An ecosystem experiences a ten year drought. As a result of the
drought, many plant and animal species are not able to survive.
What will be the effect on the biodiversity and sustainability of the
ecosystem?
A. Increased biodiversity and increased sustainability
B. Decreased biodiversity and increased sustainability
C. Increased biodiversity and decreased sustainability
D. Decreased biodiversity and

decreased sustainability

Please help I need to be done with this TODAY.

Answers

Answer:

D. Decreased biodiversity and decreased sustainability

Explanation:

The correct answer is  Decreased biodiversity and decreased sustainability.

Weak sustainability is a concept inside environmental economics that states that 'human capital' can substitute 'herbal capital'. It is primarily based totally upon the paintings of Nobel Laureate Robert Solow, and John Hartwick.

Biodiversity loss refers back to the decline or disappearance of organic diversity, understood because of the style of residing matters that inhabit the planet, its distinctive ranges of the organic corporation, and their respective genetic variability, in addition to the herbal styles found in ecosystems.

What is an ecosystem?

An environment is a geographic region wherein plants, animals, and different organisms, in addition to climate and landscape, paintings collectively shape a bubble of life. Ecosystems incorporate biotic or residing, parts, in addition to abiotic elements, or nonliving parts. Biotic elements consist of plants, animals, and different organisms although related, sustainable improvement and sustainability are distinctive concepts.

Hence clear that Decreased biodiversity and decreased sustainability are correct.

To know more about sustainability refer to the link :

https://brainly.com/question/3443105

6. A clothes dryer uses 4000 W. The dryer is used for 4 h a week. Electricity costs
$0.20/kW.h. How much money does it cost to run the dryer for 4 weeks? (3
marks)




Please help neeeee

Answers

4000 W = 4kW

If used for 4 hours that 16kW.h

Uses for 4 weeks is 64kW.h

$0.20/kW.h x 64kW.h = $12.80

A science class is doing an experiment on how light affects the growth of plants. One set of plants is placed under a special light, a second set
of plants is placed in the dark. A third set of plants is left under normal room lights. The class measures and charts each plant's growth for a
week.
In this experiment, the third set of plants that was placed under normal room lights would be identified as the

Answers

Answer:

control group

Explanation:

What are villi, and in what organ system do they function?

Answers

In the healthy individual, the walls of the intestine are covered by intestinal villi and their microvilli, which contribute to increase the absorption surface of the nutrients we ingest and lead them to the bloodstream so that they reach the organs according to their needs.

⭐✄ ----------------------------------------------------------------------------------⭐

BRAINLYMENTALMENTE

Infer how jupiter could have become another sun if it had been larger​

Answers

Answer:

Jupiter is bigger than most stars so it would make sense that it become another sun but...

Explanation:

Jupiter needs more mass to meld hydrogen into helium. EBLM J0555-57Ab is around multiple times the mass of Jupiter, probably really light - on the off chance that it were any lower, it would not have the option to combine hydrogen all things considered.

brainliest?

Are the eyelid muscles voluntary or involuntary?

Answers

Answer ⇒ Involuntary muscles.

why is there minimal seismic and volcanic activity in New York

Answers

NY1 does state that New York is not close to a tectonic plate, and it is uncertain which one of these faults—if any—would be the source of a strong earthquake.

Answer:

Explanation:

lthough the eastern United States is not as seismically active as regions near plate boundaries, large and damaging earthquakes do occur there. Furthermore, when these rare eastern U.S. earthquakes occur, the areas affected by them are much larger than for western U.S. earthquakes of the same magnitude.[1] Thus, earthquakes represent at least a moderate hazard to East Coast cities, including New York City and adjacent areas of very high population density.

Seismicity is scattered throughout most of the New York metropolitan area, with some hint of a concentration of earthquakes in the area surrounding Manhattan Island. The largest known earthquake in this region occurred in 1884 and had a magnitude of approximately 5. For this earthquake, observations of fallen bricks and cracked plaster were reported from eastern Pennsylvania to central Connecticut, and the maximum intensity reported was at two sites in western Long Island (Jamaica, New York and Amityville, New York). Two other earthquakes of approximately magnitude 5 occurred in this region in 1737 and 1783.[2][3][4]

The map shows earthquakes of magnitude 3 and greater that occurred in this region from 1924 to 2010, along with locations of the larger earthquakes that occurred in 1737, 1783 and 1884. More recently, the 2011 Virginia earthquake, a 5.8 magnitude quake centered in northern Virginia that occurred on August 23, 2011, was felt by the occupants of some buildings in Manhattan, more than 200 miles north of the quake's epicenter and caused minor physical building damage in Brooklyn.[5] There were some disruptions, including building evacuations and delays at airports, while Amtrak train service at Penn Station was also delayed.[6]

Do all please thank you. If not some is ok.

Answers

Answer:

1. Increases

2. Decreases

3. Increases

4. Decreases

5. Increases

6. Increases

Explanation:

Raising air temperature increases temperature of our body while on the other hand, if the air temperature decreases the temperature of our body also decreases because high air temperature heats up our skin surface and low air temperature cools down our skin surface which ultimately increases or decreases the internal body temperature. Adding clothing increases body temperature due to capturing of heat produced by our body. Sweating cools down our body temperature because the water takes the internal heat with itself to the outside. In shivering, the body produced heat so the body temperature increases. Exercising also produces heat inside our body which increases the body temperature.

Other Questions
An ancient crop called the chia seed is gaining in popularity due to its health benefits. Chia seeds do not have flavor. So they can be easily added to food. The seeds are rich in omega-3 oils, which help boost a person's brain power. Fish are known for carrying large amounts of omega-3 oils. However, some people just do not like the flavor fish has to offer or may be allergic to fish. They can sprinkle a tablespoon of chia seeds onto ice cream, yogurt, or other favorite foods to add omega 3 to their diet. When chia seeds are mixed with water, each seed changes its form into a gel. As a result, its size and weight increase. This has two benefits when the seeds are added to food. First, chia seeds help trick people's bodies into thinking they are full so that they do not overeat. This can help with weight loss. Second, people can use the seeds to decrease the fat that is in most baked desserts. How is this possible? They can cut the amount of butter or oil in a recipe in half. Next, they mix the seeds with water so that the seeds form a gel. Then, they use the same amount of chia seed gel to fill in for the butter that was cut out of the recipe. Adding chia seeds to food is a simple way to improve health The line plot below shows data on the total number of hours that each volunteerspent at a nature center one week. Which question cannot be answered usingthe data in the graph?Volunteer Noursht>& moreHow many volunteers worked a total of 4 hours?3How many volunteers worked at the center that week?Did any volunteers work at least 6 hours but no more than 7 hours?pid most of the volunteers more or less than hours A rectangle is 4 times as long as it is wide. If the area is 64 square feet, find its perimeter Anika is hiking on a rectengular trail at the nation park there are four resting spots along the corners of the trail on the map they are marked with coordinates of -2,2) 1,2) 1,-2) and -2,-2 if rach unit represents 1 mile find the perimiter of the trail in miles using the coordinates please help !! And I'll give brainlist Why did Phillip ll invade Greece? write a letter to your uncle telling him the reasons why he will support you to do your course Test Your UnderstandingQuestion 8 of 10Reading that it is "dark outside and inferring that it is night is an inference ofA. instrumentationB. locationC. timeD. agency Central and inscribed angle practice I need halp puh-leaseWhat is the value of the expression: x2 + y2 + x - y when x = -1 and y = 3681216and if u can plz tell why What does homophony mean?when there is only one melodyharmonic partancient Greek music formchoral arrangements What types of conditions did george Swanson starling face in the south What is the slope of the line that passes through (5,4) and (7,10)?A. 3B. -3C. 2D. -2 Arrange these statements in the right order to describe process of inhalation.___Air is drawn into the lungs ___Air pressure in the chest cavity decreases ___Lungs expand ___The diaphragm contracts and flattens ___The muscles between the ribs contract to move the ribs up and out At the book sale, all books cost less than $5.What is the most expensive a book could be?Write an inequality to represent costs of books at the sale.Draw a number line to represent the inequality. What are some of the physical effects of alcohol? Choisissez la phrase qui dcrit le mieux l'image.Tom porte un jean avec un tee-shirt bleu.Maxime porte un pantalon noir et une chemise bleue.Matthieu porte un pantalon noir avec une chemise pois.Noah porte un jean avec une cravate. Pls help I need this now The form of the poem is a(n)A. odeB. Petrarchan sonnetC. English sonnetD. soliloquy 20Which natural resource became the chief source of fuel in the Industrial Revolution?OA.steamOB.coalOC. peatOD.oilResetNext QWstion