illustrate how the self sealing bubble membrane helps to illustrate the passage of molecules through a cell membrane and the property of selective permeability
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Self-sealing bubble membranes help to illustrate the passage of molecules and the property of selective permeability in that they are an example of how something can be semi-permeable and allow only some substances to pass.
When we mention a membrane, we refer to the selective barrier that protects cells from the environment. Within this barrier, lie certain proteins that serve as a kind of "tunnel" for the passage of very specific substances. This, along with a few other mechanisms are what gives a membrane the title of being semi-permeable.
This is because semi or selective permeability is the ability to allow the passage of very specific substances despite being a sealed barrier. Self-sealing bubble membranes share this ability by allowing some substances, like specific gases, to enter the bubble while others will remain on the exterior of the sealed barrier.
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Related Questions
According to the chemiosmotic hypothesis, mitochondrial ETCs are organized so that _________ move across the inner membrane from the mitochondrial matrix to the intermembrane space as _________ are transported down the chain.
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Answer:
Explanation:
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which division of the ans is referred to as the rest and digest division?
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please help, thank you!
Answers
Answer:
regulates which materials enter and leave the cell
Students observed the shape of the Moon with the same amount of time between each observation. They drew this sequence.
Complete each of the 2 activities for this Task.
Activity 1 of 2
How long did it take them to record this sequence?
(Mark the one best answer.)
A.
About 2 days
B.
About 2 weeks
C.
About 2 months
D.
About 2 years
Answers
Answer:
B about 2 weeks
Explanation:
Two weeks is how long it would take to observe five moon phases. Rather that 2 months which would show two full moon cycles.
In an energy pyramid only about
of energy is transferred from one level to the next
get the most energy, while
consumers get
the least. This is because organisms use the energy during growth, metabolism, and cellular processes, much of the energy is lost in in the form of
Answers
Answer:
Heat
Explanation:
Energy that is not use in an ecosystem is eventually lost as heat. Energy and nutrient are passed around through the food chain, when one organism eat another organism any energy remaining in a dead organism is consumed by decomposes.
Explain the relationships between dehydration synthesis, hydrolysis, monomer, and polymer
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Answer:
combine with each other using covalent bonds
Explanation:
Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts.
Answer:
Dehydration synthesis is a process by which two monomers are linked to form a polymer, with water being given off as a byproduct. Conversely, hydrolysis is the process by which water is introduced in order to break down a polymer into its monomer building blocks.
What is the function of the nose?
To warm the air
To humidify the air
To filter the air
*All of the above
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Answer:
d. All of the above
Explanation: Is the correct answer!! and post protected
What is the upper section of the pharynx which contains the adenoids?
Answers
Answer:
a. Nasopharynx
Explanation: is correct. post protected
The diagram above shows the cell cycle. As you can see from the diagram, the cell spends most of the time in _______________________ during which it undergoes rapid growth and the DNA is replicated in order to prepare for Mitosis
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Answer:
Interphase
Explanation:
Interphase is the phase in the cell cycle in which rapid growth occurs and DNA is replicated.
the small bones in the middle ear that transmit vibrations to the inner ear
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Answer:
, yes..............
Explanation:
because the vibrations are transmitted to the inner ear after the bones amplify it
Ossicles are the body's tiniest bones. the malleus (hammer), incus (anvil), and stapes (stirrup). Ossicles amplify sound.
What are ossicles?Ossicles are very little bones; in fact, they are the tiniest bones in the entire human body. The malleus (hammer), the incus (anvil), and the stapes are the names of the three bones because of the forms they make (stirrup). The sound is amplified even further by the ossicles.
In order to reach the eardrum, sound waves must first enter the outer ear and then proceed via the ear canal, which is a very short conduit. The incoming sound waves cause the eardrum to vibrate, and the eardrum in turn transmits these vibrations to three very small bones located in the middle ear. The malleus, incus, and stapes are the names given to these three bones.
Hearing is dependent on a series of intricate steps that convert sound waves in the air into electrical impulses. These steps are necessary for hearing.
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Evolution represents biological change that accumulates over time. However, this change is not always apparent at every level in the biological hierarchy. Scientists most commonly observe the effects of evolution at the ________ level.
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Answer:
population level
Explanation:
it ocurrs at the population level as scientists requires genetic variation between individuals of a population for natural selection
how would you differentiate between pollen cells and algae cells
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Which RNA is directly responsible for catalyzing the peptide bond between amino acids during translation
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Ribosomal RNA (rRNA) is directly responsible for catalyzing the peptide bond between amino acids during translation.
if the woman and a man with normal clotting function have one biological daughter and one biological son, which children are predicted to have hemphilia A
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The products of photosynthesis are the
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Answer:
Oxygen (byproduct) and Glucose (sugar for cell use)
Explanation:
A cycle between cellular respiration and photosynthesis exists in plants.
Photosynthesis -> Oxygen and Glucose - > Cellular respiration - > Carbon Dioxide and ATP (energy for cellular use)
Then, the cycle continues.
cultivation of plant populations of a single species
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Which of these solutions is the best way to help a city as its population grows
and its air becomes more polluted?
O A. Invest in urban sprawl to better disperse the pollution.
OB. Invest in alternative energy sources to reduce emissions.
O C. Reduce road construction to dissuade new residents.
O D. Reduce air-quality regulations so businesses can grow unimpeded.
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Answer:
B. Invest in alternative energy sources to reduce emissions.
Explanation:
The best way to help a city as its population grows, and its air becomes more polluted, is to invest in alternative energy sources to reduce emissions. The correct option is B.
What is pollution?Pollutants are the name for these dangerous substances. Natural pollutants include volcanic ash, for example. They can also be brought by human activities, such as factory runoff or waste.
Air pollution is caused by solid, liquid, and gaseous pollutants. These gases and particles can be produced by factories, volcanoes, wildfires, dust, pollen, and vehicle and truck emissions.
To stop pollution, we must use alternative energies that do not cause pollution.
Thus, the correct option is B. Invest in alternative energy sources to reduce emissions.
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During which phase(s) of mitosis are structures like the one shown in Figure 10–2 visible?
Answers
Answer:
Prophase
Explanation:
Not 100% sure though.
Answer:
Prophase
Explanation:
During prophase, chromosomes condense which is why it looks like that
persistent depressive disorder, or dysthymia, is characterized by
Answers
Given what we know, we can confirm that persistent depressive disorder, or dysthymia, is characterized by the presence of prolonged depressive symptoms.
What is a depressive disorder?A depressive disorder is a condition that causes a lack of motivation, happiness, and other positive feelings.Depression is experienced by millions of people from around the world. It can be induced by events in one's life, or be caused by a chemical imbalance in the brain. What separates it from depression?What separates a depressive disorder from a more common case of depression is the frequency by which the symptoms manifest. They are known as depressive disorders when the symptoms are chronic in nature, meaning they manifest repeatedly and for prolonged durations.Therefore, we can confirm that persistent depressive disorder, or dysthymia, is characterized by persistent symptoms relating to depressive episodes, that are chronic in nature and often caused by chemical imbalances in the brain.
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Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities such as moving muscles.
Explain the energy transformation in this process.
A. Chemical energy from broken bonds is transformed into mechanical energy for muscles.
B. Mechanical energy from broken bonds is transformed into chemical energy for muscles.
C. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
D. Heat energy from broken bonds is transformed into electrical energy for muscles.
Answers
Chemical energy from broken bonds is transformed into mechanical energy for muscles. The correct option is A.
What is chemical energy?Chemical energy is the energy held in atom as well as molecule bonding.
Chemical energy can be located in things like batteries, biomass, oil, natural gas, and coal.
For instance, when humans burn wood in a fireplace or gasoline in a vehicle's engine, chemical energy is transformed into thermal energy.
Chemical energy, such as that held in the bonds of atoms and molecules, is stored energy. As a result of a chemical process, this energy is released.
Many chemical bonds throughout the body break during respiration, releasing energy. The movement of muscles is one activity that uses this energy.
Broken bonds' chemical energy is converted into mechanical energy for muscles.
Thus, the correct option is A.
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how long does it take new species to form on earth?
Answers
Research found that a major change to persist and for changes to accumulate took about one million years
Million of years...
tehy where evolving for a couple million years until we have the animals we have now
what is the name of the process in bacteria that involves dna transfer through a cytoplasmic connection known as a pilus?
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Why must the number and type of atoms be the same in the products of a chemical reaction as in the reactants?
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BRAINLIEST TO CORRECT ANSWER
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Answer:
C (pictures a and b)
Explanation:
An element contains only 1 type of atom.
An ocean pH change from 8.2 to 8.0 is NOT significant as the .2 change is very small.
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So far, the ocean's pH has dropped from about 8.2 in preindustrial times to around 8.05. This seemingly small change may already be affecting ocean organisms and future CO2 emissions could lower ocean pH even further
which soil composition would be the best choice for lining a landfill?
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Answer:
Loamy or silty soils that are free of large stones and excess gravel are the best cover for a landfill. Clayey soils may be sticky and difficult to spread; sandy soils are subject to wind erosion.
Explanation:
is it safe to use it
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is it safe to use what
Underground stem of which of the following does not store food? a)Zaminkand
b)Colocasia
c)Turmeric
d)Asparagus
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Answer:
asparagus doesn't store food.
Adolescent may conform with peers out of fear of
A. Becoming depressed.
B. being arrested.
C. establishing a new identity.
D. being disliked
E. Other
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How does diffusion occur without any Energy?
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Answer:
it moves from a stronger region of concentration to a weaker region of concentration so therefore does not call for or require energy