Food, oxygen, and water enter the cell through its ___ membrane.
Answers
Food, oxygen, and water enter the cell through its cell membrane. The cell membrane is a thin, semi-permeable layer that separates the interior of a cell from the exterior environment.
It is made up of a phospholipid bilayer that regulates the movement of substances in and out of the cell. The phospholipid bilayer consists of two layers of phospholipid molecules, which have a hydrophilic head and a hydrophobic tail. The heads are attracted to water, while the tails are repelled by water. The hydrophobic tails face each other in the interior of the membrane, while the hydrophilic heads face the aqueous environment inside and outside the cell.
The cell membrane is selectively permeable, meaning that it only allows certain substances to pass through it. Small molecules like water, oxygen, and carbon dioxide can diffuse across the membrane, while larger molecules require special transport proteins to cross the membrane. This selective permeability ensures that the cell maintains a proper balance of ions and molecules inside and outside the cell. In summary, the cell membrane is responsible for allowing food, oxygen, and water to enter the cell, while also regulating the movement of other substances in and out of the cell.
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Related Questions
What process in the nitrogen cycle converts nitrogen back into its gaseous state?.
Answers
Denitrification is the process in the nitrogen cycle that converts nitrogen back into its gaseous state.
In the nitrogen cycle, a biogeochemical process, nitrogen passes through many phases, interacts with both living and nonliving things, and is transformed into a variety of forms. Although abundant in nature, plants can only utilize nitrogen when it has been transformed from dinitrogen gas to ammonia (leguminous).
Fixation of Nitrogen (Fix the nitrogen with nitrogen-fixing organisms such as rhizobium)
Nitrification (conversion of ammonia to nitrite and nitrite to nitrate) (conversion of ammonia to nitrite and nitrite to nitrate)
Anammox (Anaerobic ammonia oxidation) (Anaerobic ammonia oxidation)
Denitrification is the process of extracting bioavailable nitrogen from the atmosphere and reintroducing it along with inert nitrogen. It is an anaerobic procedure that is crucial in the removal of nitrate. Dinitrogen gas is released as a result of this reaction (gaseous state).
Ammonification (release of inorganic nitrogen back into the biosphere as ammonia) (release of inorganic nitrogen back into the ecosystem as ammonia)
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which gas is produced during phamentation
Answers
Answer:
carbon dioxide gas
Explanation:
What is the probability of getting the same numbers on 3 dice when they are thrown simultaneously?
Answers
Answer:
So, assuming the dice are 'fair' (that each of the six numbers has a probability of 1/6 of showing up on each of the dice), there is a probability of 1/36 that all three dice will show the same number.
Explanation:
Drag and drop each tissue or structure to the germ layer from which it is derived. Ectoderm Mesoderm Endoderm red blood cells central nervous system notochord kidney tubule cells thyroid follicular cells epidermis peripheral nervous system lung alveolar cells pancreatic acinar cells skeletal muscle
Answers
Ectoderm: central nervous system, peripheral nervous system, epidermis Mesoderm: notochord, kidney tubule cells, skeletal muscle Endoderm: red blood cells, thyroid follicular cells, lung alveolar cells, pancreatic acinar cells
I'll list the germ layers and their corresponding tissues or structures:
Ectoderm:
- Central nervous system
- Epidermis
- Peripheral nervous system
Mesoderm:
- Red blood cells
- Notochord
- Kidney tubule cells
- Skeletal muscle
Endoderm:
- Thyroid follicular cells
- Lung alveolar cells
- Pancreatic acinar cells
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Summarize the role and importance of the muscular system.
Do Not Plagiarize Please
Answers
The muscular system is made up of functional cells called muscle fibers. Their primary function is contraction. Muscles are generally attached to bones and internal organs and works for movement.
Muscular systems Primary function is to help in different motions such as walking, running, and jumping. They are also responsible for handling many involuntary actions, such as beating of heart. The important organs that comprises of muscular system are the skeletal, smooth, and cardiac muscles.
Muscular system are made up from various component of muscle and each of them play a vital role in the function of the body. Muscles also allow to move, speak, and chew.
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The current population of a threatened animal species is 1.6 million, but it is declining with a half-life of 20 years. How many animals will be left in 40 years? in 65 years? The population after 40 years will be animals. (Round to the nearest whole number as needed.) The population after 65 years will be animals. (Round to the nearest whole number as needed.)
Answers
The population after 40 years will be 400,000 animals, and the population after 65 years will be approximately 336,000 animals.
To determine the population after a certain time period, we can use the formula for exponential decay;
N(t) = N0 × \((1/2)^{(t/T)}\)
Where;
N(t) is the population at time t
N0 is the initial population
t is the time elapsed
T is the half-life of the population
Given;
N0 = 1.6 million
T = 20 years
Let's calculate the population after 40 years;
N(40) = 1.6 million × \(1/2^{(65/20)}\)
= 1.6 million × (1/2)²
= 1.6 million × (1/4)
= 400,000
Therefore, the population after 40 years will be 400,000 animals.
Now, let's calculate the population after 65 years;
N(65) = 1.6 million × \((1/2)^{(65/20)}\)
= 1.6 million × \((1/2)^{(13/4)}\)
≈ 1.6 million × 0.210
≈ 336,000
Therefore, the population after 65 years will be approximately 336,000 animals.
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Carbon atoms cycle continuously through the biosphere. What is a by-product of cell respiration, and what does this by-product represent
Answers
Answer:
CO2 is the completely oxidized form of carbon from glucose
Explanation:
And is a by-product of cellular respiration.
Anemia is a medical condition in which the affected person lacks enough red blood cells. What two effects will such a condition have on the patient?
The patient will have less hemoglobin in the blood.
The patient will have less immunity against bacteria.
The patient will have a reduced oxygen supply to the cells.
The patient will have a thicker blood composition.
The patient will have increased platelets in the body
Answers
Answer:
The patient will have a reduced oxygen supply to the cells
Answer:
The patient will have a reduced oxygen supply to the cells
Explanation:
edmentum
which question is most closely related to the field of biology?
A.) what is the nearest planet to earth?
B.) how do you design a cheaper automobile?
C.) how many planets are there in the solar system?
D.) what is the cause of cancer in mice?
Answers
Answer:
option(D).what is the causes of cancer in mice
Answer:
The Closest question related to biology is D.) What is the cause of Cancer in mice
Explanation:
What type of cell is an example of an
undifferentiated cell?
A. red blood
B. stem
C. nerve
Answers
Answer:
The correct answer is stem cells
Animals that mimic poisonous or dangerous animals use a defense called
mimicry.
batesian
mullerian
Answers
Answer:
MimicryExplanation:
The statement which states that animals that mimic poisonous or dangerous animals use a defense called mimicry is true.
Animals that mimic poisonous or dangerous animals use a defense called mimicry. Animals that mimic poisonous or dangerous animals use a defense called BatesianMüllerian mimicry.
You've just returned to school from spring break and all of the plants around your classroom are wilted and looking bad. What do you think happened ? Use your knowledge of plant cells to explain . Can they recover ?
Answers
Answer:
Nobody was there to water them so they all died. No I do not think they could be revived or recover.
Explanation:
none needed
Somoene please help and explain how to read the graph!!
Answers
Answer:
Whats going on is that you have a specific amount of enzyme that can do a specific amount of work. Think of it like a hotdog stand. the enzyme would be you and your substrats are your hot dogs and buns. You can only go as fast as the materials you have. If you have more materials than hands you can only go as fast as you can make them. To many substrates and you enzyme rate will cap out at maximum speed.
Explanation:
The plot shows rate of reaction of an enzyme as a function of the concentration of substrate. At stage B, the rate flattens and becomes constant, which means there's too much substrate for the enzyme to handle. So the fourth statement is false - the rate of reaction cannot be increasing.
Which of the following is a renewable source of energy? A. oil B. natural gas C. wind D. coal
Answers
Answer: Wind
Explanation:
A renewable source of energy won't be artificial or man- made. It's energy that won't run out.
Answer:
C. Wind
Options:A. Oil
Definition: Any of a large class of substances typically unctuous viscous, combustible, liquid at ordinary temperatures, and soluble in either or alcohol but not in water: used for anointing, perfuming, lubricating, illuminating, heating, etc.
B. Natural Gas
Definition: A combustible mixture of gaseous hydrocarbons that accumulates in porous sedimentary rocks, especially those yielding petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and sometimes, helium: used as fuel and to make carbon black, acetylene, and synthesis gas.
C. Wind (Answer)
Definition: The horizontal movement of air from an area of high pressure to an area of lower pressure.
D. Coal
Definition: A black or dark-brown combustible mineral substance consisting of carbonized vegetable matter, used a a fuel.
What is the meaning of non-renewable resources?⇒ A non-renewable resource (also known as a finite resource) is one that does not regenerate itself at a sufficient pace to support long-term economic exploitation in meaningful human time frames. Carbon-based, biologically generated fuel is one example. With the use of heat and pressure, the original biological substance is converted into a fuel such as oil or gas. Earth minerals and metal ores, fossil fuels (coal, petroleum, natural gas), and groundwater in certain aquifers are all considered nonrenewable resources, despite the fact that individual constituents are virtually always maintained.
What are renewable sources of energy?⇒ Renewable resources simply indicate that the source of the resource (usually, an energy source) may be regenerated and is not depleted.
Strictly speaking, nothing is truly renewable, because even the sun will eventually use up all of its hydrogen fuel and become a bloated red giant star before blowing away most of its mass and dying as a dim red dwarf star, but as long as you are not looking at a cosmological time scale, solar energy is the focal point.
The only non-solar energy we utilize comes from nuclear power plants. Coal, oil, and gas are all forms of solar energy since they were created through the photosynthesis process, which is fueled by sunshine. However, there are two issues with these energy sources. Because we are not synthesising replacement fuel, using them is equivalent to living off your collected savings, and the act of burning them contributes to extra CO2 in our atmosphere, which is disrupting the planet's thermal balance.
Solar panels, wind turbines, hydroelectric plants, and other similar devices are all powered directly or indirectly by solar energy, which is continually replenished by the sun's activity. These energy sources will persist as long as we have a functioning star and an atmosphere, and if we lose either, we're dead regardless. Geothermal is theoretically not renewable because it extracts heat from the Earth's core and cannot be restored. It is, however, a clean energy source since, unlike the combustion of hydrocarbons, it produces no pollutants.
How is wind a renewable energy source?⇒ It is renewable in the sense that nothing is destroyed in the process of releasing energy.
The wind is created by atmospheric circumstances, and because it is continually churning and will continue to be as long as the Sun shines, there is a constant supply without the need to burn anything.
However, you cannot consume all of the wind's energy. The highest amount of energy that may be extracted is around 60%. (Betz Principle). They don't even come close.
Do the positive charges of calcium ions and sodium ions make these ions more likely to move into or out of the cell?
Answers
Answer:
Yes.
Explanation:
Yes, the positive charges on both calcium ions and sodium ions will responsible for the movement of these ions into or out of the cell because the membrane has negative charge which attract these positively charged calcium ions and potassium ions. These difference concentrations of sodium and potassium in the cell are due to the activity of cell membrane active transport system which moves sodium out of the cell and potassium into it.
Yes, the positive charges of calcium ions and sodium ions make these ions more likely to move into or out of the cell.
What do you mean by Diffusion?Diffusion may be defined as a process resulting from the random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
The membrane of a cell possesses a negative charge, so it attracts these positive charge ions and makes a concentration difference that leads to the process of active transport through which sodium moves out of the cell and potassium into it.
Therefore, Yes, the positive charges of calcium ions and sodium ions make these ions more likely to move into or out of the cell.
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Describe the type of movement as either facilitated diffusion, osmosis, or diffusion.
Answers
Answer:
1. Diffusion
2. Osmosis
3. Diffusion
4. Facilitated Diffusion
5. Osmosis
6. Diffusion
Explanation:
Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with membrane protein.
Osmosis- Move water molecules from high concentration to low concentration.
Diffusion- Evenly spread molecules from high concentration to low concentration.
1. Gases move across the room with ease without energy.
2. Water enter skin cells allowing cells to grow and wrinkle without energy.
3. Gases move with ease without energy.
4. Glucose requires energy to transfer.
5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.
6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.
Which statement about balancing selection is correct? View Available Hint(s) Hint 1.opened hint What is balancing selection, and how does it differ from other forms of selection? Which statement about balancing selection is correct? When balancing selection occurs, no single phenotype has a distinct advantage over others in terms of fitness. When balancing selection occurs, all phenotypes have equal fitness. When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare. When balancing selection occurs, phenotype does not matter.
Answers
Answer:
Correct statement: When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare
Explanation:
You will find the explanation in the attached file due to technical problems.
which of the following roles do lipids not play in our bodies?O store energy O generate heat O make up part of our cell membranes O act as hormones
Answers
Lipids are organic compounds that play a number of important roles in our bodies, including energy storage, insulation, and the formation of cell membranes. Therefore, option (B) generating heat is the correct option.
The following roles that lipids play in our bodies are as follows:
Store Energy: Lipids are an important energy source for our bodies. Fats and oils are stored in adipose tissue and provide energy when needed.
Generate Heat: Lipids do not play a role in generating heat, rather the role is played by the brown adipose tissue that has specialized mitochondria that produce heat, in a process called thermogenesis.
Makeup Part of Cell Membranes: Lipids play an important role in forming the cell membrane of our cells. They provide a hydrophobic barrier that separates the contents of the cell from the outside environment.
Act as Hormones: Some lipids function as hormones. Hormones are chemical messengers that are secreted by glands and regulate various physiological functions.
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Q- Which of the following roles do lipids not play in our bodies?
A. store energy
B. generate heat
C. make up part of our cell membranes
D. act as hormones
The arctic fox inhabits northern areas of north america. The same arctic fox is shown in the drawing at different times of the year. What causes this change in fur color?.
Answers
Why is rna incorporated into the dna molecule during dna replication?.
Answers
Answer:
The use of this RNA as a template allows telomerase to extend the 3′ end of chromosomal DNA by one repeat unit beyond its original length. The complementary strand can then be synthesized by the polymerase α-primase complex using conventional RNA priming.
Explanation:
what is Up-regulation
Answers
Answer:
The process by which a cell increases its response to a substance or signal from outside the cell to carry out a specific function.
I Hope this will help you if not so sorry :)
Microspheres could not be considered true cells unless they had the characteristics of living things, including a. Intelligence. B. Nuclei. C. Enzymes. D. Heredity.
Answers
Answer:
D
Explanation:
The correct answer would be heredity.
Heredity is one of the major attributes of living organisms. It is a biological process that involves the transfer of traits or genetic characteristics from one generation to another. WIthout heredity, living organisms will not be able to pass attributes to their offspring and the latter will have no connection to the former generations whatsoever.
Correct option: D
Based on Jill's observations, which conclusion could you draw?
Answers
Answer:
the warm water and abundant sunlight in the nertic zone limits the plankton population
Arrange the steps of the scientific method in the correct order.
Ask questions.
Test the hypothesis.
Observe.
Construct a hypothesis.
Communicate the results.
Analyze the results and conclude.
↓
Answers
The correct order of the steps of the scientific methods is Ask questions, Conduct background research, Construct a hypothesis, Test the hypothesis, Analyze the results, Draw conclusions, and Communicate the results.
Ask questions: The scientific method begins with the formulation of a question or a problem that you want to investigate.Conduct background research: Before constructing a hypothesis, it is important to gather information and conduct research to understand existing knowledge and theories related to the question or problem.Construct a hypothesis: A hypothesis is an educated guess or a proposed explanation for the question or problem. It should be based on the background research and provide a testable prediction.Test the hypothesis: This step involves designing and conducting experiments or making observations to gather data that will either support or refute the hypothesis.Analyze the results: Once data is collected, it needs to be analyzed using appropriate statistical or analytical methods to identify patterns, trends, or relationships.Draw conclusions: Based on the analysis of the results, conclusions are drawn to determine whether the data supports or refutes the hypothesis. This step involves interpreting the findings and discussing their implications.Communicate the results: The final step involves sharing the findings with the scientific community and the public through oral presentations, scientific papers, or other means. This step allows for peer review, replication of the study, and further discussion among scientists.know more about hypothesis here:
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What is the characteristics that make the pulmonary alveoli asit for gaseous exchange
Answers
The pulmonary alveoli are well-suited for gaseous exchange due to their large surface area, thin walls, and proximity to capillaries.
The pulmonary alveoli, which are small air sacs within the lungs, possess several characteristics that make them ideal for gaseous exchange. Firstly, they have a vast number of alveoli, resulting in a large surface area. This increased surface area allows for a greater exchange of oxygen and carbon dioxide between the alveoli and the surrounding blood vessels.
Secondly, the walls of the pulmonary alveoli are extremely thin. This thinness enables efficient diffusion of gases through the alveolar membrane. The thin walls reduce the distance that oxygen and carbon dioxide need to traverse, facilitating rapid exchange between the air in the alveoli and the blood in nearby capillaries.
Lastly, the pulmonary alveoli are in close proximity to an extensive network of capillaries. This close association ensures a short diffusion distance for gases between the alveoli and the bloodstream, allowing for efficient exchange of oxygen and carbon dioxide during respiration.
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8
Organisms evolve due to changes in their DNA called
A
growing
B cellular respiration
mutations
D
recombination
Answers
Answer:
Mutaciones
Explanation:
Los cambios genéticos incluyen mutaciones causados por errores en la replicación del ADN de un organismo
Answer:
b cellular respiration
Which of the following is not used in vegetative propagation?
a. leaf
b. stem
c. seed
d. root
Answers
Answer: The correct answer is C, seed. Seeds are not used in vegetative propagation; instead, vegetative propagation involves taking parts of existing plants and using them to create new plants. This can include taking cuttings from stems, leaves, and roots.
What is the result of cellular respiration?
a: Energy for cell processes is released
b: Cells undergo decomposition
c: Oxygen is released for photosynthesis
d: Nutrients are excreted to prevent the buildup of body fat
Answers
c oxygen is released for photosynthesis
what phase occurs directly after g1
Answers
Answer: Image result for what phase occurs directly after g1
S phase
The phase that occurs directly after G1 is S phase, or synthesis phase. During this phase the cell replicates its DNA.
Explanation:
What is the relationship between ecosystem stability & biodiversity?
Answers
Answer:
Well, ecosystem stability is the ability of an environment to sustain a stable condition, even after the occurrence of stress or disturbance, while biodiversity is the diversity of life through all the various stages of biological organization on this planet.
Explanation: