Answer:
Please Mark as Brainliest. Please!!!!!!!!!!
Explanation:
Definition
Active transport is the process of transferring substances into, out of, and between cells, using energy. In some cases, the movement of substances can be accomplished by passive transport, which uses no energy. However, the cell often needs to transport materials against their concentration gradient. In these cases, active transport is required.
Active transport requires energy to move substances from a low concentration of that substance to a high concentration of that substance, in contrast with the process of osmosis. Active transport is most commonly accomplished by a transport protein that undergoes a change in shape when it binds with the cell’s “fuel,” a molecule called adenosine triphosphate (ATP).
For example, one type of active transport channel in the cell membrane will bind to the molecule it is supposed to transport – such as a sodium ion – and hold onto it until a molecule of ATP comes along and binds to the protein. The energy stored in ATP then allows the channel to change shape, spitting the sodium ion out on the opposite side of the cell membrane. This type of active transport directly uses ATP and is called “primary” active transport.
Another type of active transport is “secondary” active transport. In this type of active transport, the protein pump does not use ATP itself, but the cell must utilize ATP in order to keep it functioning. This will be explained in more depth in the section on Symport Pumps below.
Lastly, active transport can be accomplished through processes called endocytosis and exocytosis. In exocytosis, a cell moves something outside of itself in large quantities by wrapping it in a membrane called a vesicle and “spitting out” the vesicle. In endocytosis, a cell “eats” something by wrapping and re-forming its membrane around the substance or item.
Each type of active transport is explained in more detail below.
Types of Active Transport
Antiport Pumps
Antiport pumps as an example of active transport
Active transport by antiport pumps
Antiport pumps are a type of transmembrane co-transporter protein. They pump one substance in one direction, while transporting another substance in the opposite direction. These pumps are extremely efficient because many of them can use one ATP molecule to fuel these two different tasks.
One important type of antiport pump is the sodium-potassium pump, which is discussed in more detail under “Examples of Active Transport.”
Symport Pumps
Symport pumps take advantage of diffusion gradients to move substances. Diffusion gradients are differences in concentration that cause substances to naturally move from areas of high to low concentration.
In the case of a symport pump, a substance that “wants” to move from an area of high concentration to low concentration down its concentration gradient is used to “carry” another substance against its concentration gradient.
One example of a symport pump – that of the sodium-glucose transport protein – is discussed below under “Examples of Active Transport.”
Sympoter pump as an example of active transport
Active transport by symporter pumps
Endocytosis
In the third type of active transport, large items, or large amounts of extracellular fluid, may be taken into a cell through the process of endocytosis.
Which of the following shows the correct genotypes of purebred individuals?
A. BB, bb, Bb
B. TT, Tt, Tt
C. Ss, Ss, ss
D. bb, BB, bb
Why is energy lost in a food chain? *
Answer:
Because as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level
Explanation:
Hope that helps!
Where does the H+ come from that makes ATP synthase work?
Answer:
Electron Transport Chain
Explanation:
Gizmos Cell Respiration
The H+ that's vital in making ATP synthase work comes from the electron transport chain.
The electron transport chain can be found in the mitochondria. It is a series of protein complexes that are able to transfer electrons from the electron donors to the electron acceptors.
It should be noted that the transfer of the electrons from the electron donors to the electron acceptors is done through the redox reactions. This is illustrated in the H+ that made the ATP synthase work.
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(EVIDENCE NOTEBOOK)
wildlife monitoring technology is an important of protecting our ecosystems and the populations that live within them. How do you think advancements in the kind of technology could help protect burrowing owl populations.
Answer:
Plant more trees in areas that don’t have enough to make up for the loss of habitat. Also integrating large bird homes and sanctuaries around the power plants could help the owls settle back down in a semi-familiar environment.
Explanation:
Reduce threats to wildlife in the best remaining wilderness areas on Earth to keep their numbers stable or growing, to ensure sustainable fishing and hunting, and to settle disputes between people and wildlife.
What is the importance of wildlife monitoring technology?We can ensure that widespread species remain widespread and that unusual, threatened, and endangered species continue to get protection and aid thanks to data gathered through wildlife monitoring.
We may monitor pack dynamics, movements, ecological effects like feeding, mating, and nesting behaviors, illness outbreaks, snare incidents, and other human conflict issues through daily monitoring.
Therefore, We have a greater grasp of the occurrence, distribution, and status of animals in the preserves because of monitoring initiatives.
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What is the process of exchanging oxygen and carbon dioxide called?
Answer: Respiration or Gas exchange in some sources
Explanation:
Do you have more cells now than you did when you were five?
Answer:
No After your cell dies of another one come. Your cells are still the same
Explanation:
When you age, cells do divide and reproduce more cells. However when you age the reproduction process of cells gets slower and they can die off before they can reproduce. There can be many problems with your cells that can make cell count lower such as Atrophy, and Dysplasia. When you age, cells are a contributing factor of making you age. They can change your skin, face, etc.. So the answer would be no, you would not have more than you did when you were five.
The cellular process diffusion does not require cellular ________________ to reach equilibrium. Similarly, ________________uses a selectively permeable membrane to reach equilibrium. This Membrane allows _____________to pass through, but not soluble particles or molecules. It too does Not require cellular energy. When molecules cannot move through a cell membrane passively, the Cell uses a process called_____________. This process uses_______________ found in the cells Membrane to pass particles and reach equilibrium.
Answer:
Please tell me if you knew the answer
Explanation:
which characteristic could help you distinguish between bacteria and fungi?
Answer:
Bacteria are single-celled organisms but most fungi are not.
Explanation:
Bacteria are single-celled microscopic organisms that are characterized by the presence of incipient nucleus and few membrane-less cell organelles. Fungi, singular fungus, are eukaryotes that are characterized by the presence of chitin in the cell wall. All bacteria are prokaryotes. All fungi are eukaryotes
Answer:
A) Bacteria are single-celled organisms, but most fungi are not.
Explanation:
Bacteria are microscopic single-celled organisms with immature nuclei have an immature nucleus and a few membrane-less cell organelles. Fungi (plural fungus) are eukaryotes distinguished by the presence of chitin in the cell wall. Prokaryotes are all bacteria. Fungi are all eukaryotes.
What causes a star to shine brightly?
the color that is produced
the energy that is released
the amount of gravity that is present
the types of elements that are present
Answer:
B: the energy that is released
Explanation:
Trust me on this.
Can I also get brainlest, and tell me if I'm right or not.
Answer:
b
Explanation:
took the test
how are proteins made in animals and humans
Answer:
Through protein synthesis of course...
Explanation:
DNA and RNA do many steps such as translation, transcription, and more to form protein codons and code them into amino acids. Then, thousands of amino acids are oined together to make proteins, which regulate body function and catalyze chemical reactions (enzymes). Ribosomes are also involved in this action. To make proteins, nitrogen is needed for the plant to use, and that comes mainly from nitrate ions in the soil, and gets into the plant by active transport.
which of the following best describes the trend represented by this graph?
a. Lemming populations increase because of larger snowy owl populations
b. Snowy owl populations increase because of smaller lemming populations
c. Snowy owl populations increases because of larger lemming populations
d. Lemming population decreased because of smaller snowy owl populations
plsss help...
Answer:
Jan 21, 2014 — Could lemming abundance also be a key factor in the snowy owl ... these rodents because the causes of lemming population cycles are still not ... Fox, skua, and snowy owl populations increase as lemming prey increases. ... Researchers predict a trend of increasing snow depth in this region as a result of ...
PLSSS SOMEONE
Why does evolutionary theory absolutely require the earth to be very
old?
Answer:
Because it takes time for the animals to adapt to their environment, and change their DNA
Answer:
Because evolutions don't happen overnight, it takes years and years for an organism to develop an evolution. So, the earth has to be old, because if we look at the earth when it was young, then we don't really see any evolutions. However, if we look at it when it's old, we can see that there were many evolutions. I hope this helps!
Explanation:
What are the similarities between prokaryotes, eukaryotes and viruses?
Question 1
Mercury goes around the sun the
of all the planets.
O slowest
O fastest
Which of the following help break down rock into soil? *
O A. Lichen
O B. Weeds
C. Shrubs
O D. Trees
Answer:
It’s lichen baby
This jet streams are south what kind of weather do we get
Answer:
The south gets warm air.
Explanation:
The Earth splits into hemispheres, therefore, the north gets cold and the south gets warm weather. The southern hemisphere is closer to the equator.
Which statement describes a characteristic common to autoimmune diseases?
A. They commonly affect women.
B. They are easily passed by bacteria from one person to another.
C. It is rare to have more than one at a time.
D. They most commonly harm the endocrine system.
Answer:
D.
immune diseases are where your immune system attacks itself. most commonly it attacks the brain or the endocrine system first, as a way to take complete control.
Explanation:
A. males have a higher risk of getting an autoimmune disease.
B. autoimmune diseases are not passed, they are not contagious, it something you are born with or develop over time with a problem in cells. they can be triggered by food, medicine, anything really.
C. it is not rare to have more than one, many people who have one end up developing more over time.
Answer:
a
Explanation:
Which human activity has the most negative effect on the stability of an ocean environment
Answer:
putting motor oil or leakage of oil in oil carrying ships
what is geological uplifting
Answer:
ereee
Explanation:
weqwe
Said adenine=thymine and guanine=cytosine
I need help for a crossword
An organism was found. It is unicellular, but its one cell does contain a nucleus and the cell is autotrophic. What type of organism is this?
A
animalia
B
protista
C
bacteria
D
fungi
Answer:
B protista
Explanation:
The cell is unicellular, so it can not be an animal, which are all multicellular.
It contains a nucleus, which means it cannot be prokaryotic (it cannot be bacteria)
The cell is autotrophic, which means it cannot be a fungus, which are heterotrophs
Therefore, the organism must be a protist, so the answer is B, protista.
How many electrons must get passed down the Electron Transport Chain before energy is generated?
Answer:
4 electrons
Explanation:
Electron transport chain is defined as the series of process in which electron transfer takes place across a membrane. It is consists of enzymes, peptides, and other molecules.
There are 4 electrons that passed down the Electron Transport Chain before energy is generated. These Four electrons further reduce each molecule of oxygen. Oxygen binds with free proton and form water and move across the membrane to form ATP.
Hence, the correct answer is "4 electrons".
Answer: 2
Explanation:
Trust me I just took the test and got it wrong cuz I put 4
Which of these is an advantage of multicellular organism
A. They can form complex organ systems
B. One cell performs all of the necessary functions
C. All of the cells are the same
Answer:
A.They have a complex organ systems
Explanation:
This helps each cell specify on one or two functions helping the others
List the two base pairs found in dna
Answer:
The base pairs in DNA are adenine with thymine and cytosine with guanine
Explanation:
Answer:
• Chargaff's rule→ base paring
• Adenine (A) - thymine (T)
• Guanine (G) - cytosine (C)
BRAINLIEST PLS HELP! Balance this equation and be sure to show your work. NaCl + H2O —→ Cl2 + NaOH + H2
Answer:
2NaCl + 2H2O —→ Cl2 + 2NaOH + H2
Work:
NaCl + H2O —→ Cl2 + NaOH + H2
Na-1 Na-1
Cl-1 Cl-2
H-2 H-1+2
O-1 O-1
2NaCl + 2H2O —→ Cl2 + 2NaOH + H2
Na-2 Na-2
Cl-2 Cl-2
H-4 H-2+2
O-2 O-2
Historically, wildfires were viewed as detrimental to forest ecosystems
Please select the best answer from the choices provided
OTrue
OFalse
Answer: True
:))))))))))))))))
what causes typhoid in human
Answer:
if the person has been infected from typhoid he she must be in contamination of dirty polluted water and food
Observations can be ______
(could you hurry please) - not to be rude!
Which of the following statements about the relationship between genetic and environmental factors relating to health is true?
a. No health issues arise without an interaction between genetic and environmental factors.
b. Health issues related to toxic environments can occur independent of genetic inheritance.
c. Health issues, such as depression, are related solely to environmental factors.
d. There is no known connection between environmental factors and health.
Answer:
Health issues related to toxic environments can occur independent of genetic inheritance.
Explanation:
The statement which is true about the relationship between genetic and environmental factors relating to health is, that health issues related to toxic environments can occur independently of genetic inheritance.
What do you mean by Genetic inheritance?Genetic inheritance may be defined as a principle that explains the process of characteristics that are passed from one generation to the next.
The toxic environment is responsible for the number of health diseases among organisms. These diseases may reflect the pattern of genetic inheritance as well, but it is not significantly accepted or analyzed.
Genetic inheritance depends on the physiological characteristics of involving parents.
Therefore, the statement which is true about the relationship between genetic and environmental factors relating to health is, that health issues related to toxic environments can occur independently of genetic inheritance.
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Need help I am being timed
Answer:
Over time the molecules will spread out evenly.
Explanation:
Answer:
They will reach an equalibrium.
Explanation: