Please help with answer 3 :)
Answer:
1) Diffusion : Is the movement of molecules / ions from a region of higher to lower concentration. It may or may not occur across a semi permeable membrane.
In diffusion there is no challenge involved as it is along the concentration gradient, but in active transport movement of molecules occur against concentration gradient ie; from lower to higher concentration.
2) For active transport, energy is vital for movement, in this case protein molecules function as molecular pumps to enable the cell accumulate glucose/ions, against concentration gradient. Here metabolic energy ATP is required.
3)Facilitated diffusion is a type of passive transport in which ions/molecules cross the semi permeable membrane because permeases present in the membrane facilitate the transport.
Like simple diffusion facilitated diffusion doesn't require metabolic energy and simply occurs across the concentration gradient.
4) Osmosis : is movement of water from hypotonic solution (lower concentration) to hypertonic solution (higher concentration) through a semi permeable membrane.
The cell membrane being permeable to water allows to and fro movement of water molecules along the concentration gradient.
Opinion: is our current water use sustainable? Why or why not?
Answer:
This actually depends, since most of our water is filtered (depending on where you live) then yes it is sustainable! But if our water wasn't filtered then no, it would not be sustainable. This is because of all the things that go into our water before it's filtered. We've got plastic, trash, dead fish and all that, in some cases sewer system drainage and a lot more that goes into the filtered water that we drink.
Explanation:
Because Tibetans live in high-altitude mountains, which of the following is an adaptation they may experience?
Answer:
all of the above is correct edg
Explanation:
What do Pulmonary veins carry?
Answer:
Pulmonary veins: The veins do the opposite job of pulmonary arteries and collects the oxygenated blood and carry it from the lungs back to the heart. The veins merge into larger veins. Each lung has two pulmonary veins that deliver blood to the heart's top left chamber or atrium.
Explanation:
sana makatulongcan someone tell me why this is incorrect Ik it's not potential but I had a something going on with my test so I need help to figure out the right word because I forgot my original word I put in it.
Answer:It’s right
Explanation:
which statement best compare the roles of organelles in making proteins?
Answer:
Vesicles modify proteins, while the Golgi bodies manufacture proteins. Rough ER transport proteins, while the cell membrane modifies proteins. Chromosomes modify proteins, while the nuclear membrane produces proteins.
Explanation:
When referring to cell division, oncogenes are most like ________ while tumor suppressor genes are most like ________. the brakes on a car; the gas pedal on a car the steering wheel on a car; the gas pedal on a car the gas pedal on a car; the brakes on a car the brakes on a car; the steering wheel on a car
Oncogenes are most like the gas pedal on a car, while tumor suppressor genes are most like the brakes on a car. Oncogenes and tumor suppressor genes are mutated in cancer cells.
Oncogenes are genes overexpressed in cells in which they should not be expressed, thereby leading to cancer.
Some examples of oncogenes are growth factors such as, for example, the Platelet-derived growth factor (PDGF) or Epidermal growth factor (EGF).
Conversely, tumor suppressor genes are genes that act to regulate cell division and replication, thereby their inactivation also leads to cancer.
A well-known example of a tumor suppressor gene is the p53 gene that acts to control cell division and apoptosis (programmed cell death).
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Which example best describes a reflex action?
A. going for a walk outside
B. bending down to lift a heavy object
C. eating food when hungry
D. coughing when the throat is irritated
Answer:
D
Explanation:
coughing when the throat is irritated
________ and _________ also contribute to the cycling of water.
Noseee jkjknmnmnmnnn jmnmnmb
If a rat births several offspring after fertilization, why will these offspring NOT be genetically identical to the mother
Answer: The offspring will not be genetically identical to the mother because the process of mitosis mixes chromosomes frome the mom and dad.
Cơ thể người không tiêu hóa được loại đường nào?
Answer:
Cơ thể người không tiêu hóa được loại đường nào? Cơ thể người không tiêu hóa được Xenlulozo.
4. What muscle joins with the short head of the biceps brachi?
Answer:
attaches to the coracoid process of the scapula
if both parents have normal red blood cells then how can the child have sickle cell anemia
PLS HELP ME
Answer:
It's due to hereditary
Explanation:
Hereditary Is something that is passed on from family generations. It can pass on genes and disease's. From past family members in blood lines.
Example: My grandpa had cancer but my mom and dad did not but I still have his blood and when I'm 30 I get diagnosed with cancer and die 1 year later.
Hope this helps :)
what organelle converts sunlight to chemical energy
Answer: Chloroplasts
Explanation: Chloroplasts turn light energy from the sun to sugar.
why is glycolysis described as having an energy investment phase and an energy payoff phase?
Answer:
It uses stored ATP and then forms a net increase in ATP. In the presence of oxygen, the three-carbon compound pyruvate can be catabolized in the citric acid cycle
Explanation:
Wjy is the increase in atmospheric carbon dioxide dangerous?
Answer:
The gas inhibits the escape of heat from Earth’s
Explanation:
This is the main cause of global warming. They cause climate change by trapping heat and they also contribute to respiratory disease from smog and air pollution. Extreme weather, food supply disruptions, and increased wildfires are other effects of climate change caused by greenhouse gases.
The earth temperature depends upon the balance between the incoming radiation from the sunlight and the energy that is reflected back to space. Carbon dioxide absorbs the heat sent to earth by the sun, it acts as an insulator of the earth and helps to keep the atmosphere warm and make suitable for life process.
But, when the concentration of carbon dioxide in the atmosphere is increased, it means more and more increase in the temperature of the planet and cause global warming and make the life difficult on the planet. As a result of that whole life on the earth would be in danger.
Answer:
If you increase carbon dioxide, the temperature can go up causing our earth to have global warming problems.
Please mark brainliest if you would. I would really appreciate it
Which type of soil makes it MOST
difficult for plants to thrive and
decompose organic material?
Explanation:
Poorly drained soils tend to have a high percentage of organic matter because low oxygen levels limit decomposition organisms.
which statement is true about cell differentiation?
Answer:
It causes cells to change and specialize.
Explanation:
hope this helps you if it does please mark brainiest
Which of the following steps is required before biological processes can break down organic material in wastewater?
Aeration basins
Primary clarifiers
Filtration
Disinfection
The following steps required before biological processes can break down organic material in wastewater is Aeration basins and Primary clarifiers.
Water treatment refers to any technique that enhances the quality of water in order to make it suitable for usage by humans in homes and offices.
There are certain processes involved in the treatment of water. These includes:
screening and pumpinggrit removalprimary clarifiersaerationsecondary clarifiersFiltrationDisinfectionoxygen uptakeIn the screening and pumping process, materials and objects are removed from the entering wastewater using screening machinery. The extracted material is cleaned, crushed, and disposed of in a landfill.
In the grit removal, fine particle materials are eliminated from the wastewater.
Enormous circular tanks are known as clarifiers that receive the materials. Settled material acknowledge as primary sludge, is pushed to the tank's bottom, while the wastewater leaves from the top.
At the aeration stage, the wastewater receives the majority of its treatment. Pollutants are absorbed by microorganisms and turned into cell tissue, H2O, and nitrogen through biological breakdown processes.
The water treatment process was ended with filtration and disinfection to enable the water to be free from bacteria.
Therefore, we can conclude that the steps required before biological processes can break down organic material in wastewater is Aeration basins and Primary clarifiers.
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Does carbon make up an amino acid?
Answer: Hope this helps!
Explanation:Amino acids are the monomers that make up proteins.
Answer:
carbon is a part of the amino acid formula, but it's not the only component :)
Explanation:
A block of aluminum has a mass of 40.5 grams. If the density of aluminum is 2.7 g/mL, what is the
volume of this block?
Answer: 15 mL
Explanation:
Volume = Mass ÷ Density
= 40.5 g ÷ 2.7 g/mL
= 15 mL
∴ the volume of the block of aluminum is 15 mL.
The large storage sites of the different forms of carbon are referred to as Carbon ______?
WILL MARK BRAINLIEST
what cells produce antibodies to help fight infection
Answer:
white blood cells because they are there to fight diseases in the body
A biology class in Virginia conducted a survey of the plant species found on their school grounds. They found several plants that they didn’t recognize. What resources would be most helpful to the class in identifying the plants and determining if they were introduced as exotic species?
This is a multiple choice
1). Virginia newspaper and science journals
2). Biology textbooks and the encyclopedia
3). Virginia native species checklists and plant identification keys
Can someone tell me the answer and explain how you got it please?
Answer:
c
Explanation:
I would say C because then you can identify if it was introduced as an exotic species if it is not native. Then you will also be able to identify what type of plant it is with the key.
How does the body dispose of carbon dioxide?
metabolizes it through oxidation
returns it to the capillaries
stores it for later use
releases it through the lungs
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The body disposes carbon dioxide while exhalation, through the lungs ~
cells only keep a small amount of _____ on hand and regenerate it as needed using energy stored in carbohydrates and other molecules.
Answer:
ATP is your answer
Explanation:
name the organelles that perform each of the following functions
Answer:
Please give more context.
Explanation:
Oxygen is a reactant in the formula for cellular respiration and it is needed to make what?
DNA
ADP
ATP
Pick one sentence or paragraph from the article, and explain how it supports the idea that science is an evolving discipline that depends on repeated testing.
Answer:
From Edmentum:
“Paleontologists used to think that dinosaurs were similar across the continents—at least during the Jurassic period, says Novas. C. diegosuarezi’s mix of features now brings a wrinkle of doubt to that idea.” The paragraph explains that this new dinosaur gives some evidence that the dinosaurs in South America were structurally different from dinosaurs in other areas of the world. According to the paragraph, scientists will need to find and examine more dinosaur fossils from this region before they can support this claim. The claim supports the statement that science requires repeated testing.
Reworded:
“Paleontologists used to think that dinosaurs were similar across the continents—at least during the Jurassic period, says Novas. C. diegosuarezi’s mix of features now brings a wrinkle of doubt to that idea.” Paleontologists used to think all dinosaurs were similar all around the world, but the structure of a specific species of dinosaur made them second guess themselves. It seemed that the dinosaurs in South America were evolving different structures and functions than dinosaurs from other continents. The claim supports that the statement needs more testing.
Explanation:
Answer:According to Novas, "Paleontologists once believed that dinosaurs were identical on all continents, at least during the Jurassic era. The combination of traits on C. diegosuarezi currently casts some doubt on that theory. The structure of a particular species of dinosaur caused paleontologists to reevaluate their previous belief that all dinosaurs were globally identical. It appeared that the architecture and functions of South American dinosaurs were evolving differently from those of dinosaurs from other continents. The claim argues in favor of additional testing for the assertion.
Explanation: This is a hand written answer. NOT SAMPLE ANSWER
what products are produced from the combustion of coal?
Answer:
fly ash, bottom ash, and flue-gas desulfurization gypsum
Explanation:
hope it helps