Answer:
the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
Explanation: Thats the definition of active transport or ATP
It requires energy and moves molecules against a concentration gradient. Option 1 is correct.
Active transport refers to the movement of molecules or ions across a cell membrane against their concentration gradient, requiring the expenditure of energy. Option A correctly describes active transport by highlighting the key characteristics of this process. Active transport mechanisms, such as pumps and carriers, utilize cellular energy, typically in the form of ATP, to transport molecules or ions from an area of lower concentration to an area of higher concentration. This process allows the cell to maintain concentration gradients that are necessary for various cellular functions.
Options B, C, and D describe passive transport processes. Option B describes simple diffusion, where oxygen molecules move from an area of higher concentration to an area of lower concentration without the need for energy input. Option C describes facilitated diffusion, where glucose moves down its concentration gradient with the help of specific transport proteins. Option D also describes passive diffusion, where carbon dioxide molecules move along their concentration gradient without the requirement of energy.
In summary, option A correctly describes a form of active transport by emphasizing the need for energy and the movement against a concentration gradient.
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The complete question is:
Which of the following describes a form of active transport?
A) It requires energy and moves molecules against a concentration gradient.B) Oxygen (O₂) diffusing across a cell membrane from an area of higher concentration to an area of lower concentration.C) Glucose being transported into a cell along its concentration gradient.D) Carbon dioxide (CO₂) being transported out of a cell along its concentration gradient.helpp with biology..ion know what im doing
answer:
b.
explanation:
im sure its b.
hope this helped <3 also if wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
Chlamydomonas is a genus of single-celled photosynthetic algae. Which of the following is NOT a way that chlamydomonas maintains homeostasis?
A. The reproductive system of chlamydomonas contains specialized cells that enable the organism to reproduce both sexually and asexually.
B. Chlamydomonas contains a chloroplast and produces its own food via photosynthesis.
C. Waste products leave chlamydomonas through diffusion.
D. Chlamydomonas is able to grow by absorbing minerals and through photosynthesis.
HELP ASAP HELP ASAP
Answer:
A
Explanation:
This is the least necessary for homeostasis
can anyone help me? PLEASEE
Answer:
just go in google and search like something like this " what is proteins monomer? "
Explanation:
Answer:
See Below:
Explanation:
Carbohydrates:
Monomer: Monosaccharides
Polymer: Polysaccharides
And so, the Carbs would be 1 sugar unit since carbs are also connected with sugar
For the second question, disaccharides or polysaccharides
Lipids: glycerol head and fatty acid tails, for number two it is triglycerides
Reason being that lipids have tails and they are associated with fats and oils, the tail of lipids are also how you can determine whether a lipid is saturated or not.
Proteins make up Amino acids when put into chains. Second one is polypeptides are chains of Amino acids.
Nucleic acids make up nucleotides when in polymers, second one: DNA, chains of Nucleic acids make DNA
In class, students performed an experiment in which they used an egg as a representative cell. After removing the outer
shell, students placed the egg with its intact cell membrane into sugar solution that contains 80% sugar and 20% water.
That sugar solution would be blank to the egg and water would move blank the egg.
A. Hypertonic; out of
B. Hypotonic; out of
C. Isotonic; into
D. Hypertonic; into
Answer:
it would be A. Hypertonic; out of
The net migration of water in a hypertonic solution will be from the body into the solution. Plasmolysis, a process that causes cells to shrink and die when they are immersed in a hypertonic solution.Thus, option A is correct.
What Hypertonic movement removing the shell of egg?By means of osmosis, water enters and exits cells. When a cell is in a hypertonic solution, water leaves the cell when the solution becomes isotonic and the solution has a lower water concentration than the cytosol of the cell.
When someone excretes too much water without also excreting electrolytes, they experience hypertonic dehydration, which results in a high sodium content in the fluid surrounding their cells (also known as extracellular fluid).
Therefore, In contrast to the solution inside the egg, a concentrated sugar solution is hypertonic. As a result, water leaks out of the egg when it is submerged in the concentrated sugar solution, making the egg shrivel.
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How do most plants take up nitrogen?
Answer:
Hello. Let me explaine.
Explanation:
Most plants usually use four ways to absorb nitrogen from soil:The atmospheric nitrogen enters empty spaces between soil grains. There are special bacterias that transform atmospheric nitrogen into amoniom ion. Then، amoniom ion is absorbed by plant. The second way starts after transforming atmospheric nitrogen to amoniom ion. The amoniom ion is transformed to nitrate ion by another special bacteria. Then the nitrate is absorbed by the plant. Another way starts from the homous. Homous is transformed to amonia (NH3) by an another special bacteria then the amonia reactions with H+ in soil and makes amoniom. Then amoniom ion is absorbed by the plant. The fourth way after production of amoniom from homous، it is transformed to NO3- then it will be absorbed by the plant.we should not allow mosquitoes to bread in our surroundings because they
Answer:
We should not allow mosquitoes to breed in our surroundings because Mosquitos act as a vector for bacteria and viruses, responsible for diseases such as malaria, dengue, encephalitis, and yellow fever.
(They are also very disgusting creatures that put itchy bumps on our skin lol)
Explanation:
HELP NOWWWWWWWWWWW PLZZZZZZZZZZZZZZZZZZZZ ANSWER MY QUESTIONNNN I ONLY GOT 10 MINUTES LEFT!!!!!!!!!I WILL MARK THE BRAINLEST PERSON TO GET IT JUST PLZZZZZZ HELPPPPPP
Use the model below to explain how the sound from the ambulance’s siren appears to change as it drives past the girl. Why does the girl hear the sound differently as the ambulance travels past her?
Develop your claim of why the girl hears the sound differently as the ambulance travels past her. *
Answer:
The girl hears the ambulance sound different. The first part of the picture shows the girl and the sound waves, and they are right in front of her, so she cannot hear them as well. But the second image shows the girl in the middle of the sound waves. This is the strongest and loudest part of the sound waves, so it sounds different to the girl in the image.
Also, in the first image, the sound waves would most likely sound higher than in the second image. The sound would continue to get lower in frequency the father it drove away. This is because of the Doppler Effect. The Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer.
Explanation:
NAME _______________________
Instructions: Read each problem carefully and solve. Use the space below each problem to show your work and explain your thinking.
1. James decided to make his mother a cake for Mother’s Day. As he checked the recipe to make sure he had all the items he needed, he noticed that it required 30 deciliters of milk. He already has 1 liter of milk in the refrigerator. How many liters of milk will he need to buy for the cake recipe?
2. Eric and Paul both made airplanes in afterschool. They decided to have a contest to see which plane could fly the longest distance. Eric’s plane flew 6 meters. Paul’s plane flew 68 centimeters. Which plane flew the longest distance and how much father did it fly?
3. Ansley and her family decided to go to the beach for summer vacation. As they prepared to leave for their trip, her father programmed their GPS with the address of their beach house in D
Answer:
Part "3" of this question is incomplete
Explanation:
1) It should be noted that 10 deciliter equals 1 liter, thus if James has 30 deciliters, he will require ? liters of milk in total
10 ⇒ 1
30 ⇒ ?
? = 30/10
? = 3 liters
James will require 3 liters of milk in total. So, since he has 1 liter at home, he will need to buy 2 liters (2 +1 = 3) more
2) Eric's plane flew 6 meters ⇔ 600 centimeters (since 1 meter equals 100 centimeters)
Paul's plane flew for 68 centimeters
From the above, it can be deduced that Eric's plane flew the longest distance and also flew farther by 532 centimeters (600 - 68 = 532)
3) This question is incomplete
What chemicals can help an enzyme build up or break down substrates into
products?
Proteins can help enzyme to build up or break down substrates into products.
What do you mean by enzymes?Enzymes are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.
Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies. They build some substances and break others down. All living things have enzymes.
An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is used over and over.
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Why wouldn’t the clam be considered a keystone species?
Answer:
Keystone species, in ecology, a species that has a disproportionately large effect on the communities in which it occurs. Such species help to maintain local biodiversity within a community either by controlling populations of other species that would otherwise dominate the community or by providing critical resources for a wide range of species. The name keystone species, coined by American zoologist Robert T. Paine in 1969, was derived from the practice of using a wedge-shaped stone to support the top of an arch in a bridge or other construction. Just as other stones in the construction depend on the keystone for support, other species in a biological community depend on the presence of a keystone species to maintain the community’s structure.
The starfish Piaster ochraceus is a keystone species in the rocky marine inter tidal communities off the northwest coast of North America. This predatory starfish feeds on the mussel Mustily Californians and is responsible for maintaining much of the local diversity of species within certain communities. When the starfish have been removed experimentally, the mussel populations have expanded rapidly and covered the rocky inter-tidal shores so exclusively that other species cannot establish themselves. Consequently, the interaction between Piasters and Mustily supports the structure and species diversity of these communities. In other communities in which Piasters occurs, however, the starfish has little overall effect on the structure of the community. Therefore, a species can be a keystone species in some communities but not in others.
non biodegradable waste materials can still be reused or recycled to lessen the garbage in the environment. why is it important to lessen the garbage in the environment?
a. when land is dumped with garbage, the land becomes occupied.
b. garbage releases toxins that can cause land and air pollution
c. we can make money out of recycled materials
d. we can save money but out of reused materials
Answer:
b. garbage releases toxins that can cause land and air pollution
Explanation:
Non biodegradable materials are those materials like plastic, nylon, runner etc. that cannot be broken down by microbial action, hence, cannot be decomposed. These materials constitutes waste materials in our environment and cause pollution, which is the release of toxic or harmful substances into our immediate environment.
Recycling or reusing of these non-biodegradable waste is one of the ways to lessen the garbage in the environment. Once the garbage are lessened, the level of pollution is automatically being minimized. This is because garbage releases toxins that can cause land and air pollution.
Answer:
1
Explanation:
1
A student notices that they can see the water in a lake and they can see a cloud in the sky, but they can't see the water in the air
as it rises.
What is an explanation for this?
Answer:
evaporation
Explanation:
Answer-Explanation:
Water particles are to small to see with the naked eye while in a gas form but you can see the liquid water in the lake or clouds though.
predict what happen to a cell if it's plasma/cell membrane lost its selective permeability
Answer:
If the plasma membrane of a cell lost its selective permeability, it would no longer be able to control the movement of substances in and out of the cell.
Explanation:
What is the relationship between breathing and cellular respiration?
La respiración pulmonar y la celular están relacionadas muy estrechamente. Los pulmones incorporan el O2 del aire y lo pasan al torrente sanguíneo, el cual lleva el O2 a las células. Las mitocondrias de las células utilizan ese O2 en la respiración celular, obteniendo la energía
Explanation:
Answer:
Breathing involves inhale of oxygen from the atmosphere into the lungs and exhale of carbon dioxide from the lungs into the atmosphere ; whereas cellular respiration involves breakdown of glucose into carbon dioxide and water in living cells, releasing energy.
Explanation: I hope this helps a bit :3
Please answer both of these for a brainliest
List some inexhaustible energy resources
Answer: Examples of such resources are solar, wind, geothermal, water, soil, air, ocean waves, and tides.
Explanation:Hope This Helps :)
Answer: did you check google or google chrome
Explanation:
Which best describes the distribution of communities on a tall mountain?
how do you think you get energy.
Answer:
we get energy through plants and animals that ate the plants the plant has chemicle energy that we eat or that the animal that ate the pant that we ate then we use that energy to produce multiple other energys ex heat energy,pysical energy and so on hope that helps
Explanation:
Which of the following does NOT occur during the light-dependent reactions of photosynthesis?
A Energy is transferred to ATP
B A sugar molecule is formed.
C Energy is captured by chlorophyll.
D Water molecules are split.
The water molecules are split does not occur during the light-dependent reactions of photosynthesis. Thus, option D is correct.
What is photosynthesis?
Photosynthesis has the process in which green plants prepare their own food in the presence of sunlight and heat energy has been converted into chemical energy by the process of cellular respiration. The main effect of the ultraviolet light on plant growth has during the process of photosynthetic
The process of photosynthesis takes place in the green plants only due to the presence of the chlorophyll and materials such as sunlight, water, carbon dioxide is required for the process of photosynthesis. Photosynthesis has the process in which green plants prepare their own food
The main effect of the ultraviolet light on plant growth has during the process of photosynthetic active radiation under the high level, UV -B light increases the net plant photosynthesis in several plant species.
Therefore, The water molecules are split does not occur during the light-dependent reactions of photosynthesis. Thus, option D is correct.
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Which element has chemical properties that are most similar to those of calcium
Answer:
Magnesium
Explanation:
One example of Supply and demand is A. Clean air. B. Oil. C. Plastic or D. Democracy
Which one?
Which natural event is most likely to cause air pollution?
Answer:wildfires volcanos
Explanation:
What's one of the fastest-growing professions in the United States?
A. Environmental scientist
B. Farmer
C. Solar panel installer
D. Green car mechanic
Enzymes influence chemical reactions in living systems by
a. Combining with excess hydrogen to form gaseous wastes
b. Affecting the rate (speed) at which reactions occur
c. Providing the substrate required for the reaction to occur
d. Absorbing water released when polymers are formed
Answer:
I think its b. affecting the rate at which reactions occur
which statement about plant and animal cells are true?
Answer:
what is the question?
Explanation:
Answer:both use mitochondria to release energy
Explanation:i think
Which is an organ?
O heart
O circulatory system
O blood
O muscle tissue
Wayne thinks that DNA is only present in cells that need the information to make proteins. Sandy disagrees, and thinks that all cells have the same DNA, and they only make proteins from the genes that they need. Who is correct? Give specific evidence.
Answer:
The correct answer is: Sandy is correct, all cells contain all the DNA.
Explanation:
Sandy is the one who is making the correct statement here because all cells (minus some exceptions) contain ALL the DNA. Different cells have different requirements so each cell will translate into proteins the part of the DNA that has the specific gene for the protein the cell needs to synthesize.
For example, excitatory cells like neurons or cardiac cells need gated ion channels that are made of specific proteins to allow the passing of molecules like sodium and potassium. For this reason, these cells will use a particular gene in the DNA, adapt it into an mRNA strand through a process called Transcription, and then use different structures such as ribosomes and tRNA to help synthesize the protein needed from that mRNA strand (this process is called Translation).
All of the parts of the DNA that are not used by a cell will remain silent, while the genes that are used are expressed in the cell. This disparity between different parts of the DNA is thanks to the process of gene regulation, which "turns genes on and off".
In the light, plant leaves undergo photosynthesis, using CO2, water, and light energy to produce food. In the dark, plants cannot perform photosynthesis. Click Reset (), then click on the light switch to turn off the lights. Click Play to run the experiment in the dark. What happens?
Answer:
The plants leaves do not produce ATP
Explanation:
ATP molecules are only produced during the light phase of photosynthesis. They are not produced during the dark phase.
Hence, when the light is switched off, ATP molecule is no longer produced showing that photosynthesis is no longer going on.
A short story of about how the carbon cycle work
The step-by-step instructions for conducting the experiment.
Answer:
1) Pose a Testable Question.
2) Conduct Background Research.
3) State your Hypothesis.
4) Design Experiment.
5) Perform your Experiment.
6) Collect Data.
7) Draw Conclusions.
8) Publish Findings.
Answer:
1) Pose a Testable Question.
2) Conduct Background Research.
3) State your Hypothesis.
4) Design Experiment.
5) Perform your Experiment.
6) Collect Data.
7) Draw Conclusions.
8) Publish Findings.
