Answer:
The Hay-flick Limit is a concept that helps to explain the mechanisms behind cellular aging. The concept states that a normal human cell can only replicate and divide forty to sixty times before it cannot divide anymore, and will break down by programmed cell death or apoptosis.
During cellular respiration, most ATP is formed as a direct result of the net movement of
O hydrogen ions against a concentration gradient
electrons through a channel protein
potassium ions down a concentration gradient
o electrons against a concentration gradient
hydrogen ions down a concentration gradient
O potassium ions against a concentration gradient
protons against a concentration gradient
Answer:
protons against a concentration gradient.
Explanation:
Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.
Hence, during cellular respiration, most adenosine triphosphate (ATP) is formed as a direct result of the net movement of protons against a concentration gradient in the electron transport chain.
Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.
Through the process of chemiosmosis, the H+ gradient is used to produce ATP molecules. During cell respiration, most ATP is formed as a direct result of the net movement of hydrogen ions down a concentration gradient.
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Let us review the oxidative phosphorylation process.
The electron transporter chain + chemiosmosis constitute the process of oxidative phosphorylation.
Chemiosimosis refers to the ATP production through a proton gradient
The electron transporter chain is a series of molecules and proteins located in the internal mitochondrial membrane. It constitutes a series of enzymatic reactions to release and save energy for the organism’s correct functioning.
Along the chain, there are four proteinic complexes in the membrane, I, II, III, and IV, that contain the electrons transporters and the enzymes necessary to catalyze the electrons' transference from one complex to the other.
Different redox reactions occur to pass electrons along the chain.
Released energy creates a proton concentration gradient used to synthesize ATP.
1) NADH provides electrons to the first complex, Complex I. From there, electrons go to the coenzyme Q that carries them to complex II. Meanwhile, complex I pomp four protons to the intermembrane space.
2) Complex II receives electrons from CoQ and also receives electrons from FADH2. Electrons are sent from complex II to ubiquinone Q that carries these electrons to complex III.
3) Complex III receives electrons from ubiquinone Q and pomps protons to the intermembrane space. Electrons are transferred to Cytochrome c.
Electrons travel from cytochrome c to complex IV.
4) Complex IV is the last complex that pomps protons to the intermembrane space.
5) Electrons are sent to O₂ molecules, which also receive protons in the matrix to create water molecules. Four electrons are needed to produce two water molecules from one O₂ molecule.
Since too many protons were pumped to the intermembrane space by complexes I, III and IV, an electrochemical gradient is created.
Protons tend to go back to the matrix, but they can only pass the membrane through an integral membrane protein.
H+ returns to the mitochondrial matrix through the ATP synthase.
While H+ passes to the matrix, ATP is produced by this Chemiosmotic process.
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Related link: https://brainly.com/question/20343904?referrer=searchResults
https://brainly.com/question/18843830?referrer=searchResults
Which term means "without the
ability to speak or make sounds"?
A. aphonia
B. anoxia
C. anemia
D. apnea
Answer:
It is A
Explanation:
Loss of ability to speak through disease of or damage to the larynx or mouth.
Help ASAP! First one to answer gets a brainly.
Based on your knowledge of on-site centralired storage of nuclear waste, what do you feel is the most appropriate long-term solutionShould radioactive spent fuel roda be moved to and stored Yucca Mountain? Defend your decision using evidence.
Answer:
Yes
Explanation:
Because
The Yucca Mountain repository is the proposed spent nuclear fuel (SNF) and high-level radioactive waste (HLW) repository where both types of radioactive waste could be disposed. If constructed, it would use a tunnel complex approximately 1000 feet below the top of Yucca Mountain and about 1000 feet above the aquifer underlying the repository. The basic idea of geologic disposal is to place carefully packaged radioactive materials in tunnels deep underground. To achieve this, the Yucca Mountain repository would utilize a mixture of natural and engineered barriers to isolate the waste from the surrounding environment.
It is statutorily limited to containing 70,000 metric tons of spent nuclear fuel and high-level waste, unless a second repository opens during its operational lifetime.
How many segments are there in the spinal column?
31
22
45
101
Answer:
31
Explanation:
it says I need more words so here ya go
The muscle contract and relax based on orders delivers from the nervous system. (true or false)
Answer:
true
Explanation:
hope this helped. the enevers control how the muscles react to certain situations. so they tell muscles to relax and to tense up
In a single called organism mitosis is used for
Answer:
asexual reproduction.
Explanation:
The cell membrane performs several important functions in addition to separating the cytoplasm from the outside environment. It controls which molecules enter and leave the cell. The cell membrane is “selectively permeable,” which means it allows certain substances through and not others. One way that substances enter and leave the cell is through diffusion, the movement of particles from higher concentration to lower concentration. For example, if the concentration of salt molecules is higher inside the cell than outside, salt particles will move out of the cell. Diffusion is a type of passive transport, a movement of particles that does not require energy to occur. Facilitated diffusion is a kind of passive transport where proteins in the cell membrane help particles move from high to low concentration.
The cell membrane functions most like a?
Answer:The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.
Explanation:
Marine biologists in the Gulf Coast completed a population sample for Orcinus orca, commonly known as the Orca whale. The researchers captured and tagged 28 whales, then released them. One month later, they captured 18 whales, 3 of which had a tag. Estimate the total population of Orcinus orca in the Gulf Coast.
a
168
b
55
c
252
d
250
i think the correct answer of this qusion is 55
Why is fossilization rare?||
Which of the following inferences can be drawn based on the data in the table
sureAnswer:
not
Explanation:
5. Challenge: To balance the inputs and outputs of photosynthesis, there should be the same number of
carbon, oxygen, and hydrogen atoms on each side of the arrow.
A. Is the formula balanced as written? Why or why not?|
B. Now balance the input/output formula by adding coefficients to each molecule. Write the balanced
formula below, and then check your work by clicking Balance.
The missing equation of the question is -
CO2 + H2O ⇒ C6H12O6 + O2
Answer:
No, the given equation is not balanced as the right side of the arrow has more atoms of C, H, and O.
Explanation:
Given equation
CO2 + H2O ⇒ C6H12O6 + O2
A. It is the equation for the reaction of photosynthesis which converts free carbon dioxide from the atmosphere and water into food or sugar. The given reaction is not balanced as there are different numbers of atoms of carbon, hydrogen, and oxygen present on both sides of the arrow. On the right side of the arrow atoms of C, H, and O are more than on the left side.
There are 6 carbon atoms present on the right side of the arrow whereas there is only 1 on the left side similarly hydrogen atoms are 12 and oxygen atoms are 8 in number whereas on the left side number of hydrogen are 2 and three atoms of oxygen.
B. The correct and balanced equation is :
6CO2 + 6H2O ⇒ C6H12O6 + 6O2
: cell energy lab
because yeah and because i did this
Explain the results you obtained. Include concentration differences and membrane pore size in your discussion.
Explanation:
The results show that the water, glucose, and IKI molecules were small enough to pass through the selectively permeable membrane. ... Based on the size of the molecules, the glucose and IKI would move out of the bag and the water would go in.
What is the main negative effect of slash and burn deforestation in rain forests?
Answer:
Explanation:
Smoke pollutes the air and less trees., more carbon dioxide. It forces animals out of their habitat and can make them extinct too. REALLY BAD!!!
Cardiac output (flow) is determined by a pressure gradient and a resistance g. Which of these variables do you think contributes most to the very large increase in flow in this athlete?
Answer:
Cardiac output depends on the resistance mainly of the cardiac muscle walls.
Explanation:
The resistance of cardiac tissue also depends on its ability to distend in the sarcomero, that is, on the initial length of the contraction, the greater this, the greater the resistance, the greater the pumping efficiency, but the greater cardiac wear, this Situation occurs in people who are athletes or athletes since they have higher cardiac output but greater efficiency at the time of blood ejection, this is how they oxygenate the tissues better.
Why can the wolf be considered both a seconday consumer and a tertiary consumer?
Answer:
A wolf can be considered as both a secondary and primary consumer because they feed on both primary and primary and secondary consumers. As a secondary consumer, wolves can feed on plant eaters [primary consumers] such as elk which is an herbivore. As a tertiary consumer, wolf feed on secondary consumers such as deer.
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The use of CO2 and H2O by a geranium plant to synthesize glucose illustrates the process of
A) autotrophic nutrition
B) heterotrophic nutrition
C) protein production
D) carbohydrate hydrolysis
Answer:
the answer is A.autotrophic nutrition
Could someone pls help me?
mitochondria.
it makes energy in the form of ATP.
Answer:
its D
Explanation:
What are tectonic plates? *
A. large moving pieces of Earth's lithosphere
B. the inner core of the Earth
C. where magma rises up and solidifies
Why is photosynthesis important for plants?
Answer:
Plants perform photosynthesis because it generates the food and energy they need for growth and cellular respiration. It is important to note that not all plants photosynthesize. Some are parasites and simply attach themselves to other plants and feed from them.
Answer:
Photosynthesis is important for plants because it let them make their foods.
What arguments have been made with respect to the campaign for “clean coal”?
Answer:
Explanation:
Clean coal involves the use of technology to mitigate the health and environmental effects of burning of coal by capturing the emissions thereof. Since burning of coal (combustion) will normally release carbon or it's compounds; this is considered as a huge contributor to global warming, which is affecting lives on the planet. Thus, capturing combustion emissions such as carbon dioxide could help mitigate the effect of global warming.
Other gases emitted from the burning of coal are sulphur (IV) oxide, SO₂ and nitrogen oxides, which are huge causes of acid rain. SO₂ have been suggested to be removed from the atmosphere by flue-gas desulfurization while NO₂ has been suggested to be removed by selective catalytic reduction.
These arguments have been made to protect the earth and the lives that live on it since global warming and acid rain affect the lives of plants and animals while global warming affect the earth's climate.
A plant root is an example of
Answer:
organ
Explanation:
A plant root is a example of an organ
Answer:
Plant root is example include cassava, sweet potato, beet, carrot, rutabaga, turnip, parsnip, radish, yam and horseradish. i tryed my bestt
Explanation:
in a hypertonic solution, water will move ____ because there are too many solutes outside of the cell ?
A.both into and out of the cell
B. Out of the cell
C.into the cell
Answer:
B because it's a hypertonic solution... that means it's concentrated so water moves out of the cell into the solution
Answer: B
Explanation: hyper means above.
Fire is not a natural process of a forest? true or false
Answer:
False
Explanation:
It often operates as an integral part of the ecosystem in which it occurs.
What are 3 structures that (prokaryotic) cells share with eukaryotic cells?
Answer:
Prokaryotic cells are surrounded by a plasma membrane and have DNA, cytoplasm, and ribosomes, like eukaryotic cells. They also have cell walls and may have a cell capsule. Prokaryotes have a single large chromosome that is not surrounded by a nuclear membrane.
Explanation:
Answer:
Prokaryotic cells are surrounded by a plasma membrane and have DNA, cytoplasm, and ribosomes, like eukaryotic cells. They also have cell walls and may have a cell capsule. Prokaryotes have a single large chromosome that is not surrounded by a nuclear membrane.
Explanation:
what type is anomer?
Answer:
An anomer is a type of geometric variation found at certain atoms in carbohydrate molecules. An epimer is a stereoisomer that differs in configuration at any single stereogenic center. An anomer is an epimer at the hemiacetal/hemiketal carbon in a cyclic saccharide, an atom called the anomeric carbon.The anomeric carbon is the carbon derived from the carbonyl carbon compound (the ketone or aldehyde functional group) of the open-chain form of the carbohydrate molecule. Anomerization is the process of conversion of one anomer to the other. As is typical for stereoisomeric compounds, different anomers have different physical properties, melting points and specific rotations.
Explanation:
Which parts of the body might you mention if you are describing the cephalic region? Check all of the boxes that apply.
the ears
the mouth
the neck
the shoulder blades
the top and back of head
Answer:
the ears
the mouth
the top and back of the head
Explanation:
just did the assignment
Answer:
the ears
the mouth
the top and back of the head
Explanation:
If a person has a tidal volume of 550 ml and breathes at a rate of 14 times per minute, what is the minute ventilation rate?
Answer:
The minute ventilation rate = 7.7 Lpm
Explanation:
a) The tidal volume = 550 ml
Respiratory rate = 14 times per minute
Since minute ventilation (VE) is the total volume of gas entering (or leaving) the lung per minute, it is equal to the tidal volume (TV) multiplied by the respiratory rate (f).
This implies that Minute Ventilation = VE = TV x f
= 550 * 14
= 7,700 ml/min.
Therefore, the minute ventilation rate = 7.7 Lpm (7,700/1,000) or 7.7 liters per minute.
b) The ventilation rate is also known as the inhalation rate or breathing rate. It is the amount of air inhaled in a specified time period. Note that at rest, a normal person moves approximately 450 ml/breath * 10 breath/min or 4500 ml/min (4.5 Lpm).
QUESTION:
Evolution never occurs in a straight line. There are always branches and nodes that can be seen along the way. Based on the image, which two statements are true?
ANSWER CHOICES (have to pick 2 answers)
A. All organisms have had one common ancestor in the past.
B. Chimpanzees are more evolved than all other organisms.
C. Gorillas share an extinct ancestor with bonobos.
D. Humans and chimpanzees are equally evolved.
E. Orangutans are unrelated to gorillas or bonobos.
The correct answer iare A. All organisms have had one common ancestor in the past, and C. Gorillas share an extinct ancestor with bonobos.
Explanation
The image shows an evolutionary tree that resulted in species such as the chimpanzee, orangutan, gorilla, bonobo, and humans. This tree shows nodes, which are the points shown on it. These nodes represent an extinct species as a common ancestor of the species of the next node that are connected to it. Therefore, the correct answers are A. All organisms have a common ancestor in the past, this statement is true because all the species shown in the tree are the result of different divisions of a first species that lived 13 million years ago. The second correct statement is C. Gorillas share an extinct ancestor with bonobos. Because in the graph it can be seen that 6 million years ago there was a node/species that is the common ancestor of the gorilla and the bonobo.
What is it called when scientists carefully examine a new result by someone else in this field of study
its called peer review!
Vestibule rehabilitation is a type of therapy that involves repositioning the bones of inner ear to prevent dizziness, nausea, and vomiting. Why would vesicular rehabilitation need to focus on the inner ear?
Answer:
Natural and home remedies to treat pain include:
Over-the-counter pain relievers like ibuprofen (Advil) and acetaminophen (Tylenol)
Applying a warm compress on the infected ear.
Applying naturopathic ear drops with ginger, tea tree, or olive oil may help with pain and inflammation.
