Can someone explain what this text means?
Encasing the cell is a membrane with special gates, channels and pumps that let in or
force out selected molecules.

Answers

Answer 1

Answer:

The text is explaining a cell membrane.

Explanation:

A cell membrane is made up of a phospholipid bilayer that acts as a kind of "skin" for the cell. The membrane helps the cell maintain homeostasis and filter out harmful particles. Elements like oxygen are allowed to pass through via protein channels, which act as gates. Does this answer your question?

Answer 2

Answer: It contains DNA, that's what is in the nuculus. 

Explanation:


Related Questions

Atoms react with one another based on what
1. Total electrons
2. Valence electrons
3. Protons
4. Neutrons

Answers

Answer:

2

Explanation:

valence electrons=reaction

The borders of plates never change. True False

Answers

Answer:

Explanation:

False

Answer:

false

Explanation:

To reproduce , female elephants produce eggs and male elephants produce sperm. Off spring are produced by the fusion of an egg with a Sperm cell . Which statement is true about the offspring?

Answers

Answer:

Answer: C. The offspring are genetically distinct from the parents because they are produced by sexual reproduction. Explanation: Sexual reproduction occurs through the fusion between an egg and a sperm cell

PLEASE ANSWER ASAP I WILL GIVE YOU BRAINLIEST AND GIVE FREEEE POINTSSS AFTER

Describe each of the following types of reactions and give one example of each: combustion, synthesis, decomposition, single replacement, double replacement.

Answers

Answer:

The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories. Some reactions will fit into more than one category.

If one strand of DNA has the sequence 5'ATCG 3', what would be the sequence of the matching DNA strand

Answers

Answer:

Each strand is made up of a sequence of four nucleotides, A, C, G, and T. The order of the nucleotide sequence encodes genetic information. Since the nucleotides pair in a predictable way — A with T, and C with G — each strand of the DNA is always complementary to the other.

Answer:

3' TAGC 5'

Explanation:

A-T, C-G

someone please help asap!!

Answers

Answer:

b

the graph has a positive gradient

Applying a force to an object causes it to
Change it's momentum
O None of the above
O Gain mass
O Accelerate

Answers

The answer is: Accelerate
Accelerate...........

The zinc chloride produced by the reaction is in what state

Answers

Answer: Solution in Water

Explanation:

I believe this refers to the reaction between Zinc and Hydrochloric acid.

When this happens, the solution will be Zinc Chloride but as it happened in a solution (the acid), the resulting Zinc Chloride salt would be in aqueous form which means that it would be a solution in water which is the other product of this reaction.

Had the zinc reacted with gaseous HCI, it would have resulted in a Zinc Chloride with no liquid in it.

How photosynthesis happen with explanation

Answers

Answer: During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose

Explanation:

Explanation:

photosynthesis is a process in which green plant use energy from the sun light to transfer carbon dioxide ,water and mineral into oxygen and other organic compounds .

photosynthesis happen when water is absorbed by root of green plants and is carried by the xylem and carbon dioxide is obtained from air that enters leaves through the stomata and diffuses to the cell containing chlorophyll .The green plans pigment chlorophyll is uniquely capable of conserving the active energy of light into a latent from that can be stored (in food) and used when needed .

i hope it help you...........

describe how the body maintain the level of glucose in the blood while a person goes without food​

Answers

Answer:

the body has glucagon and insulin, glucagon tells the body to release more glucose whenever glucose levels are low and insulin feels the glucose to the body, reducing glucose levels

Explanation: pretty much it

Ribbon and molecular surface renderings of just the enzyme in 4SKN (with and without the DNA substrate) indicate that ________ is bound in a deep active site, while a ________ loop stretches across the top of the active site and interacts with the DNA substrate.

Answers

Answer:uracil, hydrophilic

Explanation:

Why would dark moths have an advantage?

Answers

Answer:

They would have an advantage in places covered in items with their tone of "skin" Allowing them to camouflage and not be eaten

Explanation:

Couldn't find a better word for skin lol

Dark moths would have an survival advantage in a forest with dark trees

A car breaks down 2.1 m from the shoulder of the road. 1.99x103 N of force is used to push the car off the road. How much work has been done on the car?

Answers

Answer:

Joules

Explanation:

W = F * d

F = 1.99*10^3 N

d = 2.1 m

W = 4179 Joules

Many functions in the body are controlled by special compounds which statements about these compounds do you think are true? Check all that apply

Answers

Answer:

Explanation:

bipiyvivt7t8cvic8t

An E. coli cell contains about 15,000 ribosomes, which carry out protein synthesis. Assuming ribosomes are spherical and have a diameter of 20.0 nm, calculate the fraction of the E. coli cell volume that is occupied by ribosomes.

Answers

Answer:

14.57%

Explanation:

From the previous lesson, we understood that the Volume of E.coli = 4.13 × 10⁻¹⁹ m³

The diameter of the ribosome = 20 nm

Radius will be D/2 = 20 nm/2 = 10 nm

The volume of the sphere since the shape of the ribosome is spherical = 4πr³

The volume for each ribosome = 4πr³

For 15000 ribosome, we have:

[tex]= 15000 \times (\dfrac{4}{3}\pi) ((10^{-8})^3)[/tex]

[tex]= 15000 \times (\dfrac{4}{3}\pi) (10^{-24})[/tex]

= 6.283 × 10⁻²⁰

Thus, the fraction of E.coli volume occupied by the ribosome can be determined by using the formula:

[tex]= \dfrac{Vol. \ of \ ribosome}{Vol. \ of \ E.coli}\times 100[/tex]

[tex]= \dfrac{6.283 \times 10^{-20}}{4.31 \times 10^{-19}}\times 100[/tex]

= 14.57%

how planaarians able to survive without resoirtiry and circulatory system

Answers

Answer:

they possess different adaptive features

The most common living bacteria today are

Answers

Answer:

eubacteria.

Explanation:

Stored energy or energy of position is known as
Energy *
1.)Potential
2.)Kinetic

Answers

Answer:

Explanation:

1) potential because it is not "in motion"

Answer: Potential

Explanation: Stored energy is known as potential energy while energy in motion is Kinetic Energy

tình trạng trầm cảm của thanh thiếu niên trên mạng xã hội

Answers

tình trạng này chủ yếu là do vô cảm 1 phần ảnh hưởng từ các tác nhân xã hội

What is natural selection?

Answers

Answer:

Basically in simple terms, a process in which capable animals can adapt and live longer to their environment than to others. Like a light colored mice on dark rock wouldn't survive unlike dark colored mice

Explanation:

In nature, living organisms have to navigate conditions (such as severe heat, extreme cold, drought, predation, food scarcity, etc) surrounding their existence in order to survive.

The theory of evolution states that as they conquer these conditions, their behavior and physical abilities, and traits evolve and become efficient at doing so.

These traits are then passed on to their offspring via the process of reproduction.

The process by which their physical qualities change to survive their environment is called adaptation.

Those who are unable to evolve are terminated by the harsh conditions of nature. Those who are unable to pass their abilities to survive to their offspring also get wiped off. Those who adapt and reproduce are deemed to be selected naturally to survive hence the term - Natural Selection.

Hence natural selection is a component of evolution.

Evolutionists have stated that the Giraffe is an example of an animal that evolved. It developed a long neck to enable it to reach for food far off the ground and on trees when there was a condition that wiped off shrubs available for them to graze on easily off the ground.

As giraffes with longer necks grazed and fed well, they passed on the gene to their offspring whilst those without adequately long necks got terminated by nature.

Another example is given in the attached picture. The animal in the picture is a desert dragon lizard adapting the color of its skin to blend to its environment in order to escape being spotted by desert hawks that prey on them.

Learn more about natural selection here:

https://brainly.com/question/23279230

Question 2 please help choices are prokaryote or eukaryote

Answers

Answer:

1. Circular chromosome, no mitosis = PROKARYOTES

2. Sterols in membrane, performs exocytosis = EUKARYOTES

3. Cell wall and mitochondria present = EUKARYOTES

4. Spirillum shape present = PROKARYOTES

Explanation:

Prokaryotes are organisms that notably lack a membrane bound nucleus while eukaryotes possess a membrane bound nucleus. Although, there exists other characteristics and features that distinguishes these two domains of organisms.

- Circular chromosome is a feature possessed by prokaryotic organisms e.g. bacteria. Also they do not undergo mitosis, instead they perform binary fission.

- Sterols are a class of lipids present in the membranes of all eukaryotes. Prokaryotes lack this feature. Also, eukaryotes perform the process of exocytosis, which is how eukaryotic cells release waste particles outside the cell.

- Mitochondria is a structure present only in eukaryotic organisms. Hence, an organism that possesses both cell wall and mitochondria is an EUKARYOTE.

- Spirillum is a characteristics of spiral shaped bacteria called spirochetes. Since bacteria are prokaryotic, hence, the spirillum shape is a prokaryote.

Rats can be a real danger when they find
their way into your food storage spaces? yes or no​

Answers

Answer:

yes, it could be something that's old or something rats cant eat/drink

Explanation:

Cómo es estudiado hoy el organismo humano?

Answers

anatomía y fisiología

Why is birth rate multiplied by 1000 not 100​

Answers

per 1000 something ughh forget sorryyyyyyy

How does the age of a tree relate to its size?

Answers

Answer:

Árbol de envejecimiento fórmula La fórmula de envejecimiento del árbol puede estimar la edad de un árbol multiplicando el diámetro del árbol por su factor de crecimiento. Es más exacto con bosque y árboles rurales en lugar de árboles urbanos, que a menudo se cultivan en condiciones menos ideales que pueden atrofiar su crecimient

Answer:

If you know when the tree was planted, you can easily and accurately determine its age. The second most accurate way to estimate tree age is to count the annual rings of wood growth. Annual rings can be counted using two different methods. You can extract an increment core from the tree using an increment borer.

Explanation:

Escribe los nombres de cinco plantas de tratamiento del agua que se encuentren en Bogotá

Answers

Answer:

Bogota esta ubicasa en un altiplank, Llama do sabana de Bogota, en la Cordillera Oriental de la Andes a una altura de 2.640 metros (8.660 pies) sobre el nivel del mar. La region extendkda se conoce Como Altiplank Cundiboyacense, que significa "altiplano de Cundinamarca y Boyaca". El rio Bogota cruza la sabana y forma el Salto del Tequendama al suroeste. Los rios afluentes forman valles done se encuentran aldeas y cuya economic se basa en la agrictura, la ganaderia y la prosuccion artesanal. La sabana limitia al este con los cerros orientals que corren de norte a sur y contienen los cerros Guadalupe y Monssrrate. El limits occidental de la ciudad esta formado por el rio Bogata. Hacia el norte, el Area Metropolitana de Bogata se extiende sobre el altiplano hasta las localidades de Cina y Sopo.

Espero que eato haya ayudado.

Five facts about protein synthesis

Answers

Answer:

1.Unzipping. - DNA double helix unwinds to expose a sequence of nitrogenous bases. ...

2.Transcription. A copy of one of the DNA strand is made. ...

3.Translation (Initiation) mRNA couples w/ ribosome & tRNA brings free amino acids to ribosomes.

4.Elongation. - Anticodon of tRNA recognizes codon on mRNA. ...

5.Termination.

Type of relationship where one organism survives while by feeding on another.

A) Commensalism
B) Parasitism
C) Mutualism
D) Predator-Prey Relationship

Answers

Answer:

B) Parasitism

Explanation:

How does the ear pick up sound waves from the external environment? (any bots or links added will be reported!)

Answers

Answer:

The auricle a portion of the outer ear collects sound waves, channeling  into the ear canal where the sound is amplified.

Explanation:

The auricle a portion of the outer ear collects sound waves, channeling  into the ear canal where the sound is amplified.The auricle a portion of the outer ear collects sound waves, channeling  into the ear canal where the sound is amplified.The auricle a portion of the outer ear collects sound waves, channeling  into the ear canal where the sound is amplified.The auricle a portion of the outer ear collects sound waves, channeling  into the ear canal where the sound is amplified.The auricle a portion of the outer ear collects sound waves, channeling  into the ear canal where the sound is amplified.Answer:

Explanation:

Which two systems work together to make your body move?

a.digestive system and integumentary system

b.lymphatic system and digestive system

c.nervous system and excretory system

d.skeletal system and muscular system

Answers

Answer:

The answer is D. skeletal system and muscular system.

In the musculoskeletal system, the muscular and skeletal systems work together to support and move the body. The bones of the skeletal system serve to protect the body's organs, support the weight of the body, and give the body shape.

Other Questions
Having to do with the entire body. An element X is found to have atomic mass of Y amu, and it is found that Y is 6.66 timesgreater than the atomic mass of carbon-12. Identify X and Y. Which sentence is correct?A. Karl has one dogs, two gooses, and three sheeps.B. Karl has one dog, two gooses, and three sheep.C. Karl has one dog, two geese, and three sheep.D. Karl has one dog, two geese, and three sheeps. The table shows conversions for common units of length.Unit of LengthCustomary System UnitsMetric System Units1 inch2.54 centimeters1 foot0.3048 meters1 mile1.61 kilometersWhat is the conversion factor to convert kilometers to miles? difference between social problems and social evils What is the formal word for Bleistift?NEED HELP ASAP When you repeat a melody in a composition, but you make the notes longer or shorter while keeping pitches the same, you are using contour procedures similarity variation A Rhode Island state statute requires machinery in industrial plants to include automatic shut-off switches accessible to each employee working on the machine. Steel Companys equipment does not have the switches. Trudy, a Steel employee, suffers an injury that an accessible shut-off switch would have prevented. Trudys best theory for recovery is: Sydneys teacher says she may have her report card percentage based on either the mean or the median and she can drop one test score if she chooses.94%, 84%, 100%, 68%Which measure of center should Sydney choose so she can have the highest percentage possible? Given vector u = (3, 1) and v = (2,-4), determine the value of v 4u incomponent form. 1.T-Time What inferences can you make about when this was created?ther2.A-Action What is happening in the cartoon?3.C-Caption What textual clues are included?4.O-Objects List every item you can identify in the cartoon.5.S-Summary What is the message of this cartoon? How does this relate to the current lesson? PLEASE HELP. What is the original (LiOH] if the equivalence point of a titration is reached when 35.5mL of 0.40 M HBr is added to 25.0 mL of LiOH?A. 0.57 M B. 0.28 M. C. 0.014 M D. 0.024 M Which organism is a top producer?a) algaeb) sharksc) small fishd) zooplankton When a liquid sample is taken from sea level to a higher elevation, what happens to the external (atmospheric) pressure on the liquid and the boiling point of the liquid Four forms of Human rights violation What is the role of the respiratory system in the body? 12(4x5)+5/2=10 solve for x pls help!!!! Write five things you need to do as a student Can someone help me with this question and help me find out what the "a" does in the problem y=a(x-h)^(2)+k In no more than 150 words explain how we use our senses daily, (I did this one time and she marked as bad and she told me to do it again :/ please help )