Answer:
Molecules
Diffusion is the net movement of molecules through a semipermeable membrane. It goes from high concentration to low concentration.
Diffusion is the net movement of molecules through a semipermeable membrane based on a concentration gradient.
What is diffusion?
Diffusion has the net movement of molecules through a semipermeable membrane. It goes from high concentration to low concentration. Osmosis has been the process in which molecules of the solvent pass via a semipermeable membrane from a lower concentrations to higher concentration or from less concentrated solution to high concentrated solution. In the process of osmosis movement of water takes place.
There are mainly three types of osmosis and these are hypertonic, hypotonic, and isotonic. The process of osmosis is passive transport as water moves from low solute concentration to high solute concentration.
Osmosis has been also known as diffusion of water or solvent via a membrane which allows only selective substance to go across the channel. The process of osmosis does not require ATP because it is a passive process.
Therefore, Diffusion is the net movement of molecules through a semipermeable membrane based on a concentration gradient.
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Protein pumps are efficient because they
(Plz help)
In reference to the options listed in the image, we can say that protein pumps are efficient because they can move two types of molecules, which makes option B correct.
A protein pump is a kind of protein, often found in the cell membrane, that has the capability to pump specific substances in and out of the cell. Most of the processes that happen at the cellular level are naturally optimized for efficiency, even when the process consumes energy, as is the case with the protein pump.
The reason that the protein pump is considered efficient lies in how it uses the energy. Despite being an active process that consumes ATP to function, protein pumps are considered efficient because they can move two types of molecules at the same time, using the same molecule of ATP. This allows the cell to get more done for the same amount of energy.
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Question 3
1 pts
In populations with a
density, individuals are crowded together in their habitat. In
populations with a
density, individuals are spaced far apart.
High-density means full and low density is more empty
distinguish between molecules and compounds. can a compound be made of molecules?
Answer:
Molecules are two or more atoms chemically joined together
Compounds are two or more different elements joined together chemically(heteronuclear or homonuclear).
Explanation:
All compounds are molecules, but not all molecules are compounds. a molecule can be made of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule, all compounds are made up of two or more different types of atoms.One that is used a lot is water(H2o)
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There are four blood groups: A, B, AB and O.
Explain how a father who is blood group A and a mother who is blood group B can have a child that has
blood group O. (2)
Answer:
it is because when breaking blood groups of parents they are (IAIO ) for mother and (IAIO) for the father , meaning both blood groups foe the parents has component (O) and during crossing of genes blood group O for a child can be a possible blood group.
Which of the following allows an exchange of nutrients and waste material between blood and tissue?
Answer:
b
Explanation:
What problems do animal cells have since they don't have cell walls?
Answer:
These antibiotics bond to protein molecules on the existing wall and prevent the cell from adding any new material as the wall stretches. When the cell wall stretches too far, it becomes weak and eventually bursts, destroying the cell. Since animal cells don't have cell walls, they are not affected by penicillin.
Explanation:
What’s the answer to these questions
ray4918 here to help ..
identify where Specialised cells are found,the job and the adaptation of:
Nerve cell
Sperm cell
Red blood cell
Egg cell
Explanation:
i hope the link above will be helpful
blood is distributed from the surface of a bone to deeper central canals through channels known as
Blood is distributed from the surface of a bone to deeper central canals through channels known as Haversian canals.
What is Haversian canal?
Haversian canals are small channels that run through the bone tissue, and they serve as the highways for blood vessels, nerves, and lymphatic vessels. They distribute blood and other essential nutrients to the bone tissue and allow for the removal of waste products.
These canals are surrounded by concentric layers of bone matrix, known as lamellae, and they help to maintain the structural integrity of the bone. The distribution of blood through the Haversian canals is essential for the health and maintenance of the bone tissue.
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what two main products result from photosynthesis?
How are a hypothesis and a theory similar?
Answer:
A hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven factors.
Bio Trad Bench 1 Jackson MS 2021-2022
Section 1
2 of 302 of 30 Items
Item 2
A scientist performs an experiment where part of a viral sample is placed in a nutrient solution with bacteria and the other part in a nutrient solution without bacteria. Over the next two days, each solution is analyzed every two hours to measure the total amount of viral DNA.
Does the data support that the virus is a living thing?
Yes. The total amount of viral DNA increases or stays the same in both samples.
Yes. The total amount of viral DNA increases or stays the same in both samples.
Yes. The total amount of viral DNA increases when there is a source of nutrients.
Yes. The total amount of viral DNA increases when there is a source of nutrients.
No. The total amount of viral DNA with bacteria never shows a decrease in concentration.
No. The total amount of viral DNA with bacteria never shows a decrease in concentration.
No. The total amount of viral DNA only increases in the presence of another living thing.
No. The total amount of viral DNA only increases in the presence of another living thing.
If the pH of a solution Is increased from pH 5 to pH7 it means that the?
Answer:
If we refer to pH scale, pH = 7 means neutral solution pH > 7 means basic solution pH < 7 means acidic solution - pH: potential of hydrogen - pOH: power of hydroxide
Answer: it has gained more acidic
Explanation:
how is a microscopes total magnification calculated
Answer:
rtr greggryrwufwffvtyfjggakakakakakrfckvwtnhurtehjnsgberwghebhj
Explanation:
how are rain patterns different near warm and cold fronts?
Answer:
rain near a cold front occurs over a smaller spatial area and is more intense than near a warm front
have a fang-tastic day <3
Explanation:
organelle that manages cell functions in eukaryotic cell
Answer:
Nucleus
Use the table above to fill in the chart
Structure/Function Cell Part
Organelle that manages or controls all the cell functions in a eukaryotic cell Nucleus
Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color Chloroplast
Explanation:
what three patterns of biodiversity did darwin observe
Answer:
Species vary globally, species vary locally, and species vary over time.
Explanation:
Darwin noticed three distinctive patterns of biological diversity.
Charles Darwin observed three patterns of biodiversity during his exploration on the voyage of the HMS Beagle and in his subsequent research:
Species Variation: Darwin noticed that within a particular species, there is a wide range of variation among individuals.
Geographical Distribution: Darwin observed that different regions of the world have distinct sets of plant and animal species.
Fossil Record: Darwin studied the fossil record and recognized that it contains evidence of extinct species that differ from those currently living.
Thus, these three patterns of biodiversity species variation, geographical distribution, and the fossil record were instrumental in shaping Darwin's theory of evolution by natural selection.
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____________
When an enzymes breaks down or change shape
Answer:
An enzyme’s shape is tied to its function. Heat, disease, or harsh chemical conditions can damage enzymes and change their shape. When this happens, an enzyme doesn’t work anymore. This affects the body processes the enzyme helped support.
Explanation:
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help pls answer the question at the bottom
Answer:
no
Explanation:
the lizerd is cold blooded
during which phase of the cell cycle are the chromosomes duplicated?
The chromosomes duplicate during the S phase.
hope this helped!!
b cells are white blood cells that work by ___________________, whereas t cells attacks foreign invaders __________________.
Answer:
They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health. When your body is in distress and a particular area is under attack, white blood cells rush in to help destroy the harmful substance and prevent illness. White blood cells are made in the bone marrow.
Explanation: cells are white blood cells that work by bacteria, viruses, parasites and fungi.
Why do lysosomes keep their digestive
enzymes in membranous sacs?
A. because the membranous sacs can sense when the cell is about
to be attacked
B. because the membranous sacs keep the digestive enzymes
from destroying the cell
C. because the membranous sacs act as tails that help the
lysosomes move faster
D. because the membranous sacs act as factories helping the
digestive enzymes make proteins
The correct answer is option B. because the membranous sacs keep the digestive enzymes from destroying the cell.
What is the purpose of the membrane surrounding the lysosome?The membrane surrounding the lysosome is vital to ensure these enzymes do not leak out into the cytoplasm and damage the cell from within. In order to maintain the acidic pH of the lysosome, protons are actively transported into the organelle across the lysosomal membrane.
What part of the cell is a membranous sac?
A vesicle is a small, membrane-bound sac that transports substances in cells. The ER moves proteins and other substances within eukaryotic cells. Vesicles that contain newly made proteins move through the cytoplasm from the ER to an organelle called the Golgi apparatus.
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are all fungi eukariotic?
Part E
State two questions you still have about GMO foods.
Answer:
Do GMOs Cause Cancer?Have Long-Term Health Studies Been Conducted on GMO Crops?Explanation:
Which organic molecules serve as a catalyst in chemical reactions? O lipids O proteins onucleic acids carbohydrates
Answer:
Proteins
Explanation:
how many chromosomes do human sperm and egg cells have?
the ability to move from one location to another is
menciona las 10 razones por las cuales la educación en salud es necesaria
Answer: sie
Explanation:
identify the part of a rib that articulates in the demi-facets of the thoracic vertebra.
Answer:
The capitulum of a rib sits between and articulates with two successive centra, for which most thoracic vertebrae possess costal demifacets. These are anteriorly and posteriorly paired facets, so that a vertebra typically has four demifacets.
Explanation:
The volume (V) of a cylinder can be determined by using the formula
V = ar?h,
where r = the radius of the base, and h = the height of the cylinder. What is the result
of solving this equation for r?
Answer:
Explanation:
To solve for r, simply means to isolate the variable:
[tex]V = pi*r^2*h\\[/tex]
The inverse of multiplication is division, so divide both sides by pi and h
[tex]\frac{V}{pi*h} = r^2[/tex]
[tex]r = \sqrt\frac{V}{pi*h}[/tex]