What is the difference between passive and active transport?

And

What is the difference between simple and facilitated diffusion?

Answers

Answer 1

Answer:

Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand, passive transport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy.

Simple diffusion is the movement of molecules through a cell membrane without using the channels formed by integral membrane protein. Facilitated diffusion is the movement of molecules through those channels.


Related Questions

Do atoms with more electrons produce more or less spectral lines?

Answers

The more atoms undergoing a particular transition, the more intense the emission line will be. The intensity depends on the density and temperature of the gas. An absorption line is produced when a photon of just the right energy is absorbed by an atom, kicking an electron to a higher energy orbit.

can a weak entity be dependent on another weak entity?

Answers

Yes, a weak entity can be dependent on another weak entity. In a database design, a weak entity is an entity that cannot exist without the existence of another related entity, known as its owner entity.

When two weak entities are connected, they can form a relationship where one weak entity depends on the other weak entity for its identification or existence.

This type of relationship is referred to as a identifying relationship. The owner entity plays a crucial role in providing the necessary attributes or identification for the dependent weak entity.

Thus, the existence and identification of the dependent weak entity are dependent on the existence and identification of the owner weak entity in this scenario.

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________, along with sodium, helps maintain extracellular fluid volume and balance.

Answers

Together with sodium, chloride aids in maintaining the volume and balance of extracellular fluid.

What is fluid volume balance?

The equilibrium between the body's fluid intake and output is referred to as fluid balance, which enables metabolic processes to run smoothly (Welch, 2010). Fluid makes up about 52% of the total body weight in women and 60% in men.

What transpires as the volume of extracellular fluid rises?

Baroreceptors in the high- and low-pressure vascular circuits communicate with the kidneys during ECF volume growth.

NaCl and water excretion are enhanced as a result of these signals.

What function does the extracellular fluid serve?

The medium for the interchange of chemicals between the ECF and the cells is provided by the extracellular fluid, and this can happen through dissolution, mixing, and transport in the fluid medium.

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Earthquakes also produce transverse waves that move more slowly than the p-waves. These
waves are called secondary waves, or s-waves. If the wavelength of a s-wave is 2.3 x104 m, and
its speed is 4.5 km/s, what is the frequency?

Answers

The frequency of the wave is 0.196 Hz

Speed of a wave

The speed of a wave is given by v = fλ where

f = frequency and λ = wavelength

Frequency of the wave

Making f subject of the formula, we have

f = v/λ

Since

v = speed of wave = 4.5 km/s = 4.5 × 10³ m/s and λ = wavelength = 2.3 × 10⁴ m.

Substituting the values pof the variables into the equation, we have

f = v/λ

f = 4.5 × 10³ m/s ÷ 2.3 × 10⁴ m.

f = 1.957 × 10⁻¹ Hz

f = 0.1957 Hz

f ≅ 0.196 Hz

So,  the frequency of the wave is 0.196 Hz

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Three Mark Questions :
The F2 progeny of a monohybrid cross showed phenotypic and genotypic ratios as 1 : 2 : 1 unlike that of Mendel's monohybrid F2 ratio. With the help of a suitable example, work out a cross and explain how it is possible.

Answers

The F2 progeny of a monohybrid cross showed phenotypic and genotypic ratios as 1 : 2 : 1 unlike that of Mendel's monohybrid F2 ratio is the cross may be considered: Aa × Aa, where A and a represent two different alleles of a gene.

The genotypic and phenotypic ratios will be observed:Aa × Aa. Genotypic ratio: 1AA: 2Aa: 1aa. Phenotypic ratio: 3 tall: 1 dwarf Mendel's monohybrid F2 ratio is 1:2:1 for both genotypic and phenotypic ratios, respectively, according to the dihybrid cross AA BB × aa bb. In this situation, the genotypic and phenotypic ratios differ from those expected from Mendelian segregation because the gene locus of interest is closely linked to another gene locus that influences a similar phenotype.

As a result, the resulting phenotypic and genotypic ratios differ from those expected from Mendelian segregation. As a result, the locus of interest has undergone linkage. This refers to the phenomenon where genes situated close to one another on the same chromosome are passed on to the next generation together due to insufficient crossing-over between them.

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Individual A, who is suffering from cardiovascular disease consume a set of briyani rice
daily for a long period of time.
Discuss the effects of the diet to his health.
[10 markah/ marks]

Answers

Answer:

Eating whole grains like brown basmati rice is linked to a lower risk of heart disease. Whole grains help to reduce blood cholesterol levels.

https://www.webmd.com/diet/health-benefits-basmati-rice#1

What does biodiversity mean ?

Answers

Answer:

biodiversity mean Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth.

Explanation:

Answer: Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. Biodiversity refers to every living thing, including plants, bacteria, animals, and humans.

Explanation: Usually three levels of biodiversity are discussed—genetic, species, and ecosystem  diversity.

Genetic diversity is all the different genes contained in all individual

plants, animals, fungi, and microorganisms. It occurs within a species as

well as between species.

Species diversity is all the differences within and between populations

of species, as well as between different species.

Ecosystem diversity is all the different habitats, biological communities,

and ecological processes, as well as variation within individual ecosystems.

a. Plants use CO2 in the process of ___________________ to make___________ and oxygen. b. Animals use oxygen in the process of _______________ and make more CO2. c. The ____________________________ is the main regulator of CO2 in the atmosphere because CO2 dissolves easily in it. d. In the past, huge deposits of carbon were stored as dead plants and animals ______________________. e. Today these deposits are burned as fossil fuels, which include ____________________, _____________________, and ___________________________. f. More CO2 is released in the atmosphere today than in the past because of the _________________________ . g. Too much CO2 in the atmosphere may be responsible for the _________________________________ effect/global warming.

Answers

a. Plants use CO2 in the process of photosynthesis to make glucose (sugar) and oxygen.

b. Animals use oxygen in the process of cellular respiration and make more CO2.

c. The oceans are the main regulator of CO2 in the atmosphere because CO2 dissolves easily in them.

d. In the past, huge deposits of carbon were stored as dead plants and animals in the form of fossil fuels.

e. Today these deposits are burned as fossil fuels, which include coal, oil, and natural gas.

f. More CO2 is released into the atmosphere today than in the past because of human activities, such as burning fossil fuels and deforestation.

g. Too much CO2 in the atmosphere may be responsible for the greenhouse effect/global warming,

where increased concentrations of greenhouse gases trap heat and lead to rising temperatures on Earth.

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The ___________ layer of the dermis contains a meshwork of collagen fibers that surround and support structures in the dermis.

Answers

The reticular layer of the dermis contains a meshwork of collagen fibers that surround and support structures in the dermis.

The dermis is a dense, fibrous connective tissue layer beneath the epidermis that consists of two layers, the papillary layer and the reticular layer. The reticular layer is the deeper layer of the dermis, accounting for around 80% of its thickness, and contains a meshwork of collagen fibers that surround and support structures in the dermis.The reticular layer also contains elastic fibers, fibroblasts, and various cell types, as well as nerves, blood vessels, sweat glands, and hair follicles. It is responsible for providing the skin with strength, flexibility, and elasticity, as well as housing the sensory receptors that provide us with tactile feedback about our environment.

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4. The Hesper Corporation is a leading manufacturer of high-quality upholstered sofas. Current plans call for an increase of $600,000 in the advertising budget. If the firm sells its sofas for an average price of $850 and the unit variable costs are $550, then what dollar sales increase will be necessary to cover the additional advertising

Answers

The dollar sales increase necessary to cover the additional advertising budget of $600,000 would be $1,700,000.

To determine the dollar sales increase necessary to cover the additional advertising budget, we need to calculate the number of additional units that need to be sold.

Let's denote the required sales increase as "X."

First, we calculate the contribution margin per unit, which is the difference between the selling price and the unit variable cost;

Contribution Margin = Selling Price - Unit Variable Cost

Contribution Margin = $850 - $550

= $300

Next, we can calculate the number of additional units that need to be sold to cover the advertising budget increase;

Additional Units = Additional Advertising Budget / Contribution Margin per Unit

Additional Units = $600,000 / $300

= 2000 units

Now, to find the dollar sales increase required, we multiply the number of additional units by the selling price;

Dollar Sales Increase = Additional Units × Selling Price

Dollar Sales Increase = 2000 units × $850

= $1,700,000

Therefore, the dollar sales increase would be $1,700,000.

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Pls help with this !!!!!!

Pls help with this !!!!!!

Answers

A- mouth cavity

☺️☺️

probes that bind under very stringent hybridization conditions resulting in the differential binding over one nucleotide are called .

Answers

Probes that bind under very stringent hybridization conditions resulting in the differential binding over one nucleotide are called allele-specific oligonucleotides (ASOs).

Probes are the single-stranded molecules of either DNA or RNA. These are used to find for the complementary strand in the sample genome. For this hybridization of the probe and the sample genome is performed under the favorable conditions. These probes can be radioactive or non-radioactive.

ASOs are very very short pieces of probes produced synthetically. The principle behind the synthesis of these probes is that mismatch between even a single nucleotide can disrupt the hybridization between the probe and the sample genome.

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Questions for Activity 3: Making Molecular Models of Aerobic and Anaerobic Respiration

Text BoxDraw what you think the models of aerobic and anaerobic respiration would look like if you constructed them using models like in figures 3-6

Answers

kaka ddjzomssomx dmdxjsomdmsxk

Irineu vc não sabe nem eu

sksosmmsos!s s s s s. s sim cofmc. kc c. ocmc c. ximc.

heheheheheheheheheheeheheheeheh

sou toxic

toma trou xa deu mtos pontos atoa kakakakakaja

Classify the following characteristics and examples depending on what type of reaction they describe. Either Endergonic or Exergonic Reactions
1. Products with more free energy than reactants
2. Spontaneous
3. Hydrolysis of ATP
4. Crenation of ATP from ADP and P
5. Release energy
6. Products have less free energy than reactants
7. Require an energy input

Answers

1.Endergonic reaction

2.Exergonic reaction

3.Endergonic reaction

4.Exergonic reaction

5.Exergonic reaction

6.Exergonic reaction

7.Endergonic reaction

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The Yellowstone wolf and elk are linked through a predator-prey relationship. If a disease were to strike the elk population, how would the wolves be affected? Explain the effect in short term and long term consequences.

Answers

Answer:

The wolves would be effected also. They would be effected by eating the elk.

Explanation:

Short term: They would eat the elk.

Long term: It would cause the wolves to get sick so they could go extienct if the dissease if that bad or they would have to stop eating elk.

An enveloped virus is dependent on the envelope for its ability to infect a host cell. Which virus most likely uses this mechanism?

HIV

polio

rabies

Ebola

Answers

Answer:

rabies yeah I think rabies

Answer:

The answer is HIV also known as A

Explanation:

Good try though

How do we determine a middle
atom without looking at
electronegativity?

Answers

Answer:

An atom's electronegativity gets higher as you move up in the periodic table. Thus, the atoms in the top right have the highest electronegativities and the atoms in the bottom left have the lowest ones.

Which type of reproduction is illustrated?
(A) sexual
(B) gestation
(C) asexual
(D) metamorphosis​

Which type of reproduction is illustrated? (A) sexual (B) gestation (C) asexual (D) metamorphosis

Answers

Answer:

A sexual reproduction is being shown

The answer is A) Sexual Reproduction.

The first step of the diagram illustrates a sperm (left) and an egg (right) uniting to form a zygote.

This means that two living organisms combined their genetic information to create a unique organism.

Which two processes during cellular respiration release chemical energy
stored in chemical bonds?
A. The conversion of NADH to NAD*
B. The splitting of glucose
C. The production of ATP by ATP synthase
D. The conversion of FAD to FADH2

Answers

The splitting of glucose  release chemical energy stored in chemical bonds.

In process of cellular respiration, the energy in food is converted into the energy that is used by the body's cells. In process of cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is converted to ATP.

Cellular respiration, is the process that takes place in the mitochondria of organisms which break down sugar in the presence of oxygen and release energy in form of ATP. Carbon dioxide and water are released as  the waste products.

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3. Cellular respiration produces which of the following gases?

Answers

During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts

HOPE THIS HELPS YOU!!!!

what is the part of the brain that controls emotions

Answers

Answer:

limbic system, which is located in the temporal lobe.

Answer:

limbic system

Explanation:

contains hypothalamus, thalamus, hippocampus, amygdala, frontal lobe, and olfactory bulb.



Living things use energy:

- for activities and bodily functions, like moving and
digesting


-as the building blocks of their bodies

-all of the above ​

Answers

Answer:

for activities and bodily functions like moving and digestion

Explanation:

It is because moving and digestion are energy requiring activities

extra information

cell is know as the building blocks of body

hope it helps u

Fill in the blanks: Feathers have pairs of vanes emerging from opposite sides of the _____. Each vane has branches called barbs, which, in turn, have projections called _____ with microscopic hooks that link the barbs together.

Answers

Feathers have pairs of vanes emerging from opposite sides of the shaf Each vane has branches called barbs, which, in turn, have projections called barbules with microscopic hooks that link the barbs together.

After many times later the barbs evolved in barbules, the tiny which hooks provide mechanical structure to the vanes and give them aerodynamic integrity.

a minute barb, especially : one of the processes which fringe the barbs of a feather.

Barbules are the lateral branch of a feather barb.

barbules are tiny branchlet which is growths from the side of the barbs which hook onto the barbules of neighboring barbs.

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Which reglon marked on the map Is most likely to experlence an earthquake?
North American Piate
Eurasian
Plate
Plate
Aratb
Pacific
Plate
ate
Daclt
Cocos
Plate
African Plate
Nazca
Plate
South
Amerlcan
Australlan F
Antarctic Plate

Which reglon marked on the map Is most likely to experlence an earthquake?North American PiateEurasianPlatePlateAratbPacificPlateateDacltCocosPlateAfrican

Answers

Pacific plate because that’s where the ring of fire is

The Pacific Plate, which encompasses the Pacific Ring of Fire, is the region that experiences the highest frequency and intensity of earthquakes.

What is Pacific plate?

The Pacific Plate is one of the major tectonic plates that make up the Earth's lithosphere. It is an oceanic plate primarily located beneath the Pacific Ocean. The Pacific Plate is surrounded by several other plates, including the North American Plate, Eurasian Plate, Philippine Sea Plate, and others.

The Pacific Plate is known for its high level of tectonic activity, making it geologically significant. It is associated with the formation of the Ring of Fire, which is a region characterized by intense volcanic and seismic activity. The interactions between the Pacific Plate and neighboring plates result in various geologic phenomena, such as subduction zones, earthquakes, volcanic eruptions, and the formation of mountain ranges.

The Pacific Plate's movement and interactions with other plates contribute to the dynamic nature of Earth's geology and play a crucial role in shaping the Earth's surface over time.

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A particular species of lizard can range in body color from dark brown to light brown. Body color influences how well an individual lizard can hide from predators. The more similar a lizard's body color is to the soil in its environment, the less likely it is to be seen by a predator The two graphs below represent two similarly-sized populations of lizards in similar environments that have medium-brown soil. Population 1 Population 2 Number of Individuals Number of individuals darker lighter darker lighter Body Color Body Color Suppose an environmental change that causes the soil color to become much different occurs in both environments. Which of the following is true? ​

Answers

Answer:

A- Population 1 is more likely to adapt and survive than population 2 because there is more variation related to body color in population 1.

Explanation:

In order for natural selection to occur, organisms within a population must have some genetic variation. That is, organisms within a population must have some traits that are different from one another. The more genetic variation that exists in a population, the better able the population is to handle environmental changes because it is more likely that at least some individuals will survive and reproduce.

The graphs show that population 1 exhibits a greater degree of genetic variation than population 2 in terms of body color. This means that if the soil in the environments where these populations live changes, it is more likely that some of the individuals in population 1 will survive and reproduce due to having advantageous body color in the new environment. Therefore, population 1 is more likely to adapt and survive than population 2 because there is more variation related to body color in population 1.


One parent has dimples, which is a dominant trait. The other parent has no dimples which is a recessive trait.
Dd
d
d
What can be predicted about their offsprings' chances of having dimples?
A 75% will have dimples
B 25% will have dimples
0% will have dimples
50% will have dimples
E 100% will have dimples

Answers

The correct answer is B.25%

What does “denature” mean in terms of protein structure?

Answers

Explanation:

Denaturation, in biology, process modifying the molecular structure of a protein. Denaturation involves the breaking of many of the weak linkages, or bonds (e.g., hydrogen bonds), within a protein molecule that are responsible for the highly ordered structure of the protein in its natural (native) state.

Native plants in southern California are naturally adapted to deal with fire. a. True for all native plants b. False for all native plants c. True but for only some native plants

Answers

Native plants in southern California are true but for only some native plants.(option c)

The statement "Native plants in southern California are naturally adapted to deal with fire" is true, but it applies to only some native plants rather than all of them. Fire has been a natural part of the ecology in California for centuries, and certain plant species have evolved specific adaptations to survive and even thrive in fire-prone environments. These plants are known as "fire-adapted" or "fire-resistant" species.

Some native plants in southern California have developed strategies to cope with fire. For example, some species have thick, fire-resistant bark that protects the main stem from heat and flames. Others have deep root systems that allow them to access water sources even during droughts or after fires. Some plants produce seeds that require heat or smoke to germinate, which means they rely on fire to trigger the next generation of growth. These adaptations enable these plant species to recover and regenerate after fires, and in some cases, fire can even stimulate their growth.

However, it's important to note that not all native plants in southern California possess these fire-adapted traits. The region is home to a diverse array of plant species, each with its own set of adaptations to different environmental conditions. While fire may be a natural occurrence in this region, not all native plants have evolved the same level of resilience to fire.

Therefore, it is incorrect to assume that all native plants in southern California are naturally adapted to deal with fire.

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Rachel Carson's book, ________, pointed out the dangers posed to the natural environments and humans by pesticides.
A) The Population Bomb
B) Nature
C) Silent Spring
D) Man and Nature
E) Walden

Answers

C) Silent Spring remains a classic work in the field of environmental literature and has had a lasting impact on public awareness and policy regarding environmental issues.

Rachel Carson's book, Silent Spring, pointed out the dangers posed to the natural environments and humans by pesticides. Rachel Carson's book, Silent Spring, was a groundbreaking work that brought attention to the dangers posed by pesticides to both the natural environment and human health. The book was published in 1962 and focused on the impact of chemicals like DDT on bird populations, ultimately leading to the banning of DDT in the United States. Carson's writing helped to ignite the modern environmental movement and raise awareness about the interconnectedness of nature and human society.

Silent Spring was an influential work because it exposed the widespread use of chemicals without proper consideration of their long-term effects. Carson argued that the use of pesticides was not only harmful to the environment, but also to humans who were exposed to them. Her book sparked a debate about the role of science and technology in society and the responsibility of individuals to protect the environment.

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What crop spurred population growth in europe after it was brought to europe from the americas?.

Answers

Answer:

tobacco

Explanation:

tobacco is the answer

Answer:

its not tabacoo its potatoes

Explanation:

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What is the formula for the intensity of a spherical wave? Which of theses choices describe characteristics of organisms that are shared by variousspecies of Fungi?A)cells that contain a nucleus and cell walls made of celluloseB)cells that do not contain a nucleus but are multi-cellularC)cells that all contain chloroplasts for photosynthesisD)cells that contain a nucleus and cell walls made of chitin i need help The movie day after tomarrow i need 10 realistic things and 10 non realistic things and explain the weather/ climate Which of the following is a true proportion of the figure based on the triangleproportionality theorem? what were some aspects of the Mycenaean civilization? Which word best describes the mood of this photograph? An entrepreneur buys some microscopes. Each one cost $200 and resells online for $526. What is the mark-up percentage?Please solve quickly. Moonlight sonata timber? What is direct characterization please help I will mark brainliest!!!!!!!!!! PLEASE!!!!!I NEED IT RIGHT NOW Find the dot product v. w. =v-10i 9j. w --4i-8j A) -72B) -40 C) -112 D) 32 Based on Of Plymouth Plantation, which aspect of the Pilgrims culture and society was most important to them?their religious beliefstheir desire to explore unknown landstheir rejection of European culture and valuestheir desire to convert other people to their way of life If A B, then A B = A B.1. Sometimes2. Never3. Always Select all the statements that illustrate how classical composers created expression of mood in their music.1. The composers firmly controlled changes of mood in their music, however abrupt or extreme the change might be2. The composers emphasized balance through unity and logic in music with a wide emotional range . AABC-ADEF so if BC = 10, EF = 25 and AB = 20, then DE = Which of these planes is NOT in the {100} family for a tetragonal crystal? (A tetragonal unit cell drawn to proportion is included below for reference.)(A) (010)(B) (001)(C) (110)(D) Both B & C(E) All of these planes are in the {100} family. the nurse wants to give 2 g of magnesium sulfate and has available a medication labeled 50% magnesium sulfate in 20 ml. how many ml will the nurse administer? What is meant by the terms 'high relief'?A. The figures are twice as large as real lifeB. The sculpture creates barely any shadowing and appears quite flatC. The figures in it extend far from the background creating deeper and darker shadowsD. The sculpture is extremely tall what should a cook do when prepping foods such as Caesar salad dressing or mayonnaise for highly susceptible populations? sanders, incorporated, paid a $3 dividend per share last year and is expected to continue to pay out 70% of its earnings as dividends for the foreseeable future. if the firm is expected to generate a 14% return on equity in the future, and if you require a 16% return on the stock, the value of the stock is __________.