Which of the following is NOT a characteristic of active transport? *
A)It moves substances against a concentration gradient
B)It requires energy from the cell
C)It involves facilitated diffusion
D)It may use carrier proteins that often function as the sodium potassium pump
Answer:
It involves facilitated diffusion.
Explanation:
Facilitated diffusion uses channel proteins. Channel proteins allow substances to travel through a membrane going with the gradient. Since active transport goes against the gradient, facilitated diffusion would not be a characteristic of it.
EASY QUESTION HELP ME HELP ME
What characteristics are shared by both the turtle and the leopard?
Answer:
four walking legs
Explanation:
Select the correct location on the image.
This diagram shows the functions of different enzymes during DNA replication. Which label would change if this process took place in aprokaryotic cell?
Answer:
DNA ligase
Explanation:
Answer: The nucleus
Explanation: I got it right on the test.
The table below provides data about four cells. Other conditions being equal, which cell is predicted to be the most efficient in exchanging oxygen with the environment by diffusion? * Cell Type Surface Area Volume SAV A 64 32 2:1 B 32 4 8:1 с 16 4 4 4 1:1 Cell A O Cell B O Cell C O Cell D
Answer:
164441:1???
i think that's the answer but i'm not quite sure it's so confusing can you help me understand so i CAN help you! ( and when i say i will i will !!!!!!)
Explanation:
What is a cell theory
summarize how small, nonpolar molecules enter and leave the cell (and why).
Answer:
Small, nonpolar molecules (ex: oxygen and carbon dioxide) can pass through the lipid bilayer and do so by squeezing through the phospholipid bilayers. They don't need proteins for transport and can diffuse across quickly.
Explanation:
The channel proteins act like doors through the cell membrane.
They allow large polar molecules to move in and out of the cell.
The process is called passive diffusion or passive transport, because it does not need energy.
Sometimes the protein changes shape to help the polar molecules move through the channel.
It often uses a gated pore mechanism, in which the channel is never completely open.
why do plant need food
Answer:
They need food in order to gain the initial energy they need.
Explanation:
Plants unlike humans don't get food by primary sources (aka, hunting). instead they retrieve their food from the suns rays. Without the suns rays they are able to convert this energy into glucose for themselves, and will essentially die because they do not have that source of food to give them the energy they need to survive.
What is the same about the 4 nucleotides?
Answer:
Nucleotides in DNA contain four different nitrogenous bases: Thymine, Cytosine, Adenine, or Guanine. ... Pyrimidines: Cytosine and Thymine each have a single six-member ring. Purines: Guanine and Adenine each have a double ring made up of a five-atom ring attached by one side to a six-atom ring.
Which of the following is NOT a type of neuron?
multipolar
unipolar
apolar
bipolar
Answer:
i think the answer is bipolar
can someone please help me convince my biological mother to let me on testosterone....ive been out for 4 years and am 17 and she still wont allow it.....
Answer:Try explaining to her why you want or need them,try explaining what’s going on in your brain and what your feeling.
i have a best friend who does and he has become way happier since he’s out!!
You state that the presence of water could accelerate the growth of bread mold. is this a
a)conclusion
b)analysis
c)hypothesis
d)experiment
Answer:
C. Hypothesis
Explanation:
helpppp!!!!!! i need this answer now
Why is a solution not a pure substance?
A. The solute and solvent cannot be separated.
B. It is made up of one substance.
C. It is a mixture between a solute and solvent.
D. It is made up of two substances that are chemically combined.
Answer: C. It is a mixture between a solute and solvent.
Hope this helped!
Answer:A
Explanation:
What are the genotypes of the F1 parent plants?
How often do spring and neap tides occur?
twice a day
twice a month
every 27.3 days
every 24 hours
Spring and Neap rides occur twice a month
Spring and neap tides occurs twice a month.
What is the difference between spring and neap tides?A neap tide refers to a period of moderate tides when the sun and moon are at right angles to each other. A spring tide is a common historical term that has nothing to do with the season of spring.
In the period between the two spring tides, the moon faces the Earth at a right angle to the sun. When this happens, the pull of the sun and the moon are weak. This causes tides that are lower than usual. These tides are known as neap tides.
Spring tides have higher high tides and lower low tides whereas neap tides have lower high tides and higher low tides. Hence, the range (difference in water level between high and low tide) is much larger in a spring tide than in a low tide.
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A person who is optimistic:
O A. will make more money.
O B. believes that others control his or her fate. .
O C. will have successful relationships.
O D. will be healthier.
Answer:A
Explanation:
because optimistic people are confident about their future
Optimistic people believe that they will make more money. Therefore, option A is correct.
What is an optimistic person?A person who is very confident and hopeful about his future and hopes for good outcomes is known as an optimistic person. They have faith in themselves and believe that they have the skills to make everything good. Optimists are happier than pessimists.
An optimistic person sees the positive side of everything. They believe their faith is in their own hands, and no one can control it. Their point of view is always positive. There are two types of optimistic people and that are comparative optimism and nihilistic optimism.
They believe that they will be successful and make more money in the future. Therefore, option A is correct.
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What are the molecules called that react with enzymes?
Please help.
⚠️PLEASE CHECL OUT BOTH ANSWER EITHER ONE PLEASEEE OR BOTH ;) ⚠️
Answer:
for the first question the answer i think would be density. i'm sorry but i can't answer the second question. i hope i helped.
Explanation:
The variety of life within a particular habitat, often measured by
the number of different species is known as
Answer:
"Biodiversity" would be the appropriate response.
Explanation:
Biodiversity, sometimes referred to as biological diversity, is the spectrum of organisms occurring on Earth although, occasionally, the entire range of life on Earth. The accumulation of species through a region is a general indicator of this diversity, considered species prevalence. Throughout ecosystems, like something from an intricate network, almost all of these plants or animals helping to maintain equilibrium and sustain life.HELPPP!!!Ill give you a 5 star rating and a heart!
How biology
is related to physics
Answer:
Because they both are about life and include some math
Explanation:
Answer:
Biology is the study of living organisms. Physics is the study of matter and the laws of nature to understand the behavior of matter and the universe.
Explanation:
The Biophysical Society explains that, when scientists combine physics and biology, they learn more about biological systems on a molecular or atomic level.
Hope this helps :)
Which of the following categories of ecosystem services allows us to make medicine from a rare plant grown in Chile?
Answer:
The answer is Provisioning
Explanation:
A provisioning service is any type of benefit to people that can be extracted from nature. Along with food, other types of provisioning services include drinking water, timber, wood fuel, natural gas, oils, plants that can be made into clothes and other materials, and medicinal benefits. and the question is about making medicine from plants.
The non-living parts of an organism's habitat are called...
Answer:
Abiotic Factors
Explanation:
These are the nonliving parts of an organism's habitat.
Look at the protons below. Which could be it's function?
A. storing energy
B. insulating the body
C. forming muscle fiber
D. directing the growth of cells
Answer:
It is c
Explanation:
C forming muscle fiber
Answer: correct answer is c
Explanation:
The enzyme maltase will break down the sugar maltose into which of the following components?
Answer:
Hsksjks
Explanation:
Jsksjsossjs
Which of the following is associated with infant mortality rates?
A Conflict, including war
B Cultural beliefs
C Hygiene and sanitation
D Religious beliefs
Water makes up a large percentage of the body’s cells. For a cell to remain in homeostasis, there must be a mechanism to control water changes in the cells. The movement of water from an area of high water concentration to an area of low water concentration is
A.Diffsion
B.stable transport
C.Active transport
D.Osmosis
Answer:
osmosis
Explanation:
on edge2020
The movement of water from an area of high water concentration to an area of low water concentration is called as Osmosis. Thus option D is correct.
What is osmosis ?The process in which solvent molecules pass from a lower concentration based solution to a higher concentration solution through a semipermeable membrane called as osmosis.
It is a passive process as no external energy is needed.
When a living plant cell kept in a sugar or salt solution, water diffuses from the cell sap out through the cell membrane called as ex-osmosis.
The cell causes shrinkage of the protoplasm due to water loss, where the cell undergo a condition called as plasmolysis or necrosis.
When the plasmolysed cell is placed in distilled water, the cell regains it’s turgidity and also the original shape and size by a process called endosmosis.
This condition is called deplasmolysis or cytolysis. Thus option D is correct.
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Urey and miller cooked a "primordial soup" with Hadean gases, water snd electricity to make _____,_____,_____ and_____
Answer:
Urey and miller cooked a "primordial soup" with Hadean gases, water and electricity to make glucose, acetic acid, amino acids and lipids.
Explanation:
In the Miller-Urey experiment, the aim was to reproduce the conditions of the earth before the existence of life, with the objective of demonstrating the formation of organic matter from inorganic molecules.
The scientists took water and gases present in the Hadean eon —previous to the existence of life— such as methane, carbon dioxide, hydrogen, nitrogen and even ammonia, the primordial soup. This mixture was subjected to electrical discharges, inside closed containers.
The results were some organic molecules, including glucose, acetic acid, amino acids and fatty acids. In these results the presence of macromolecules, such as proteins or nucleic acids, is not appreciated, however it was a significant contribution to the knowledge of the origin of life on earth.
Which two species are most closely related?
Answer:
Two species (B & C) are more closely related to one another than either one is to a third species (A) if, and only if, they share a more recent common ancestor with one another (at Time 2) than they do with the third species (at Time 1).
Explanation:
B and C species are closely related in this phylogenetic tree. A diagram that shows the evolutionary relationships between different species or groups of animals is called a phylogenetic tree.
By showing the branching points where species diverged from a common ancestor, it exemplifies the shared ancestry and evolutionary history of species. The arrangement of species on branches that have a recent common ancestor reflects the degree of relatedness between organisms.
Closely related species tend to cluster together on such branches. Phylogenetic trees are constructed based on similarities and differences in genetic structure, physical characteristics, or other traits observed in different animals. They are important tools in the discipline of evolutionary biology to study patterns of variation and the development of life on Earth.
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Think Critically. Compare and contrast point source pollution and nonpoint source pollution.
Answer:
Point-source pollution is easy to identify. As the name suggests, it comes from a single place. Nonpoint-source pollution is harder to identify and harder to address. It is pollution that comes from many places, all at once.
Answer:
Point source pollution as any contaminant that enters the environment from an easily identified and confined place. ... Nonpoint-source pollution is the opposite of point-source pollution, with pollutants released in a wide area.
What three things create surface currents?
Answer:
Global Winds, blows across the earth's surface creating surface currents. Different winds cause the currents to flow in different directions.The Coriolis Effect, the apparent curving of moving objects from a straight path caused by the rotation of the earth.Continental Deflections, is where the surface currents meet continents causing them to change directions.Explanation:
I hope this is the answer you were looking for.