_____ refers to a process that is associated with energy release in which complex compounds are broken down into simpler molecules.
A. Anabolism
B. Catabolism
C. Gluconeogenesis
D. Constructive metabolism
Answers
Catabolism refers to a process that is associated with energy release in which complex compounds are broken down into simpler molecules.
Catabolism is a metabolic process that involves the breakdown of complex molecules into simpler molecules, typically accompanied by the release of energy. It is the opposite of anabolism, which is the process of building complex molecules from simpler ones.
During catabolism, large molecules such as carbohydrates, proteins, and fats are broken down into smaller units such as glucose, amino acids, and fatty acids, respectively. These smaller molecules can then be further processed and utilized by cells to generate energy or to synthesize other necessary molecules.
The breakdown of complex molecules in catabolism occurs through various biochemical reactions such as hydrolysis, oxidation, and enzymatic degradation. These reactions release energy stored within the chemical bonds of the complex molecules, which can be captured and used by cells for various cellular processes, including muscle contraction, active transport, and synthesis of new molecules.
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Related Questions
Which coefficient would need to be added to balance the following equation?
CH4 + ?___Cl2 -> CCl4 + 4HCI
- 1
- 4
- 2
- 3
whoever answers fast will be marked branliest !:)
Answers
Answer:
The answer is D.-2
Explanation:
CO2+4H2 -> CH4 +2H2O
An equal number of atoms of each element in both sides of the chemical equation is required to have an equation in a balanced state.
Chymotrypsin has an α-helix that contains 2.5 turns. Approximately how many amino acids are involved in this helix?A. 20.25B. 9C. 13.5D. 3.75E. 2.5
Answers
Chymotrypsin has an α-helix that contains 2.5 turns. Approximately 9 amino acids are involved in this helix.
What is chymotrypsin?
The pancreas produces chymotrypsin. Chymotrypsinogen is its precursor. By cleaving peptide bonds in locations Arg15–Ile16, trypsin activates chymotrypsinogen and generates –chymotrypsin. The "oxyanion hole" and the hydrophobic "S1 pocket" are the results of the interaction between the aminic group (-NH3+) of the Ile16 residue and the side chain of Asp194. Additionally, chymotrypsin causes its own activation by cleaving at positions 14, 15, 146, and 148 to create -chymotrypsin, which is both more active and stable than -chymotrypsin. A three-polypeptide molecule with disulfide bonds connecting them makes up the final product.To know more about chymotrypsin, click the link given below:
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ph before and after sulphuric acid is added
Answers
Answer:
added to what? base? if its added to base then it will increase in pH. H2S04(sulphuric acid is strong) so the pH is ard 3
a solution is prepared by dissolving 17.75 g sulfuric acid, h2so4, in enough water to make 100.0 ml of solution. if the density of the solution is 1.1094 g/ml, what is the mole fraction h2so4 in the solution? a solution is prepared by dissolving 17.75 g sulfuric acid, h2so4, in enough water to make 100.0 ml of solution. if the density of the solution is 1.1094 g/ml, what is the mole fraction h2so4 in the solution? 0.0350 19.0 0.0338 0.0181
Answers
To find the mole fraction of H2SO4 in the solution, we need to first calculate the moles of H2SO4 present in the solution.
Moles of H2SO4 = mass of H2SO4 / molar mass of H2SO4
Molar mass of H2SO4 = 2(1.008) + 32.06 + 4(16.00) = 98.08 g/mol
Moles of H2SO4 = 17.75 g / 98.08 g/mol = 0.1806 mol
Next, we can calculate the total mass of the solution using the density:
Mass of solution = density x volume = 1.1094 g/mL x 100.0 mL = 110.94 g
Now, we can calculate the mass of the solvent (water) in the solution:
Mass of solvent = total mass - mass of solute
Mass of solvent = 110.94 g - 17.75 g = 93.19 g
Finally, we can calculate the mole fraction of H2SO4:
Mole fraction of H2SO4 = moles of H2SO4 / (moles of H2SO4 + moles of H2O)
Moles of H2O = mass of H2O / molar mass of H2O
Molar mass of H2O = 2(1.008) + 16.00 = 18.02 g/mol
Mass of H2O = mass of solution - mass of solute = 110.94 g - 17.75 g = 93.19 g
Moles of H2O = 93.19 g / 18.02 g/mol = 5.17 mol
Mole fraction of H2SO4 = 0.1806 mol / (0.1806 mol + 5.17 mol) = 0.0338
Therefore, the mole fraction of H2SO4 in the solution is 0.0338.
To find the mole fraction of H2SO4 in the solution, follow these steps:
1. Calculate the mass of the solution using density:
Density = mass/volume
1.1094 g/mL = mass/100.0 mL
mass = 1.1094 g/mL * 100.0 mL = 110.94 g
2. Calculate the mass of water in the solution:
mass_water = mass_solution - mass_H2SO4
mass_water = 110.94 g - 17.75 g = 93.19 g
3. Calculate the moles of H2SO4 and water:
Molar mass of H2SO4 = 98 g/mol
moles_H2SO4 = 17.75 g / 98 g/mol = 0.1811 mol
Molar mass of water (H2O) = 18 g/mol
moles_water = 93.19 g / 18 g/mol = 5.1772 mol
4. Calculate the mole fraction of H2SO4:
mole_fraction_H2SO4 = moles_H2SO4 / (moles_H2SO4 + moles_water)
mole_fraction_H2SO4 = 0.1811 mol / (0.1811 mol + 5.1772 mol) = 0.0338
The mole fraction of H2SO4 in the solution is 0.0338.
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I need help with this problem for chemistry
Answers
calculate the acid dissociation constant ka of hydrocyanic acid (hcn) at 25.0c is 4.9x10^-10
Answers
The acid dissociation constant (Ka) is a measure of the strength of an acid. For hydrocyanic acid (HCN) at 25°C, the Ka is 4.9 x 10^-10. This means that at equilibrium, only a small fraction.
of HCN molecules dissociate into H+ ions and CN- ions. The Ka value can be calculated using the equation Ka = [H+][CN-]/[HCN], where [H+], [CN-], and [HCN] are the molar concentrations of the respective species at equilibrium. The pKa, which is the negative logarithm of The acid dissociation constant (Ka) is a measure of the strength of an acid. For hydrocyanic acid the Ka value, is a commonly used measure of acid strength. For HCN, the pKa is 9.31, indicating that it is a weak acid. the acid dissociation constant ka of hydrocyanic acid (hcn) at 25.0c is 4.9x10^-10.
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Nitrogen can be converted to both biological and chemical ways. Why is nitrification an important process? 1. Bacteria converts ammonia into nitrites and nitrates that plants can use. 2. Fungi convert nitrogen in dead plants into ammonium which converts proteins into ammonia. 3. Nitrogen is converted into a usable form through lightning fixation. 4. Plant enzymes reduce nitrogen compounds into amino acids.
Answers
Answer:
it is option A
Explanation: nitrification, is the process by which bacteria in the soil convert ammonia to nitrites and nitrates. Ammonia (NH3) was produced by nitrogen fixation, but plants prefer nitrites and nitrates as a source of nitrogen and oxygen.
hope it helps
How can the properties of a substance be used to identify it?
Answers
Answer:
The chemical properties of a substance can be determined by performing experiments that use specific materials pr processes with known characteristics
Explanation:
If a specific material affects the substance in a specific way then the substance has a particular property. However if the property changes the substance, then more properties can be deduced
Based on electronegativity trends in the periodic table, predict which of the following compounds will have the greatest % ionic character in its bonds. a. H2O b. LiI c. CaO d. RbF e. HCl
Answers
Based on the electronegativity differences, compound d. RbF has the greatest electronegativity difference (3.2), indicating it has the greatest % ionic character in its bonds.
What factors affect the electronegativity of a compound?Based on electronegativity trends in the periodic table, to predict which of the following compounds will have the greatest % ionic character in its bonds, we can:
1. Determine the electronegativity values of each element involved in the bonds using a periodic table or a reference table.
2. Calculate the electronegativity difference between the elements forming each bond in the compounds.
Here are the approximate electronegativity values for each element:
H = 2.2, O = 3.5, Li = 1.0, I = 2.7, Ca = 1.0, Rb = 0.8, F = 4.0, Cl = 3.2
Now, let's calculate the electronegativity difference for each compound:
a. \(H_{2}O\): |2.2 - 3.5| = 1.3
b. LiI: |1.0 - 2.7| = 1.7
c. CaO: |1.0 - 3.5| = 2.5
d. RbF: |0.8 - 4.0| = 3.2
e. HCl: |2.2 - 3.2| = 1.0
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Think of a bath sponge. What happens when you squeeze it? How could you explain it from the point of view of the state of the aggregation of the material with which it is made?
Answers
Answer:
What happens when it is squeezed is that its volume increases, the pressure of the material increases.
Explanation:
This is due to the fact that the elastic modulus of the sponge is high and withstands broad forces without deforming its structure, since the force is made within the proportional limit of its particles without modifying or permanently deforming them, that is why when stopping doing pressure or force on it its shape returns to being the original, this also happens due to the phenomenon of resilience
How did scientists find out about the the evolution of the atmosphere?
Answers
What method would you use to reparate rice which been mixed with flour
Answers
Answer:
You can separate flour and rice using a sieve, but you won't be able to separate all of the flour from the rice since the flour is too small to see.
Explanation:
.
A nurse is collecting a stool specimen of a client suspected of having clostridium difficile. Which guideline is recommended for this procedure?
Answers
The guideline that is recommended for a nurse who is collecting a stool specimen of a client suspected of having clostridium difficile includes the following procedures:
1. Use a new pair of gloves for each step in the process of specimen collection, removing the old gloves each time.
2. A bedpan is provided by the nurse for the client to have a bowel movement.
3. The bedpan is then thoroughly washed, disinfected, and dried.
4. The client's buttocks are washed with warm, soapy water and dried with a clean towel.
5. The nurse wears gloves to remove the stool specimen from the bedpan.
6. The specimen is placed in a sterile container and taken to the laboratory as soon as possible.
7. The nurse takes care to avoid touching any part of the specimen container that will come in contact with the laboratory personnel.
The nurse should adhere to standard infection control procedures to protect both the nurse and the client from potential infection. The nurse should make certain to wash their hands before and after the procedure. A stool sample is usually the best way to confirm the diagnosis of Clostridium difficile infection. It can be challenging to diagnose C. difficile infection in the early stages.
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Someone plz help me :(
Answers
2A1 +3CL2, → 2AICI3 what is the reaction
Answers
Exactly
Redox
If a solution of NH3Br is cooled from 50 degrees Celcius to 10 degrees Celcius, what mass of crystals would form?
Answers
what grade is this for?
Explanation:
An investigation involves determining which metal is better for making pots that will cook food faster.
Answers
the same physical property that helps drive the reaction to completion can also stall out the reaction before it starts. what do we do in the procedure that helps minimize this concern?
Answers
Physical characteristics are those that can be seen without affecting a substance's identity.
Physical characteristics are therefore those that can be seen without affecting a substance's identity.
What is physical property ?Any measurable characteristic whose value describes the condition of a physical system is referred to as a physical property. A system's transitions between fleeting states can be described by changes in its physical attributes. Observables are a term used to describe physical characteristics. These attributes are not modal.
Color, hardness, malleability, solubility, electrical conductivity, density, melting point, and boiling point are examples of the physical characteristics of matter. The hue of the elements does not differ much from one element to the next.
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Question 3(1 point)
A product taken orally that conains one or more ingredients that are intended to supplement one's diet and aren't considered food is called
оа
Ob
Oc
salmonella
dietary supplement
E Coli
dehydration
Od
Answers
Answer:
Group 8 is a group (column) of chemical elements in the periodic table. It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs). They are all transition metals.
Explanation:
what must be worn in the laboratory at all times and why
Answers
Wearing appropriate clothing and protective gear in a laboratory is crucial for maintaining a safe and healthy working environment. It is important to follow the guidelines and regulations set by the laboratory to ensure the safety of everyone involved in the research and experiments. By taking these precautions seriously, lab workers can minimize the risk of accidents and injuries and focus on conducting successful experiments and research.
Laboratories are places where scientific experiments and research are conducted, and they require careful handling of hazardous materials, chemicals, and equipment. It is essential to follow certain guidelines to ensure the safety of the individuals working in the lab. One of the most important guidelines is to wear appropriate clothing and protective gear.
The clothing worn in the laboratory must be comfortable, durable, and provide adequate coverage of the body. Loose-fitting clothes, jewelry, and open-toed shoes should be avoided as they can increase the risk of accidents and injuries. Lab coats or aprons should be worn to protect clothing from chemicals, spills, and splashes.
Protective gear such as gloves, safety goggles, and face shields are also necessary in a laboratory. Gloves protect hands from chemical exposure, cuts, and punctures. Safety goggles and face shields protect the eyes and face from chemical splashes, flying debris, and harmful radiation.
Additionally, it is important to tie back long hair and avoid using hair products that could ignite or react with chemicals. Lab workers should also avoid wearing contact lenses as they can trap chemicals and cause eye damage.
Wearing appropriate clothing and protective gear in a laboratory is crucial because it minimizes the risk of accidents and injuries. Chemical spills, splashes, and explosions can cause serious harm to the body, and wearing protective gear can significantly reduce the severity of these injuries. Proper attire and gear can also prevent contamination of samples, equipment, and the environment.
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plsssss helppppp asapppppppppp
Answers
Answer:
Under the concept of popular sovereignty, the people of each territory would decide whether or not slavery would be permitted.
Explanation:
hopes this help 3> D:
Which of the following occurs in cells only produce male and female cells
Answers
Answer:
I think its B
Explanation:
What volume of 2.0M HCl is needed to prepare 0.50L of a 0.75M solution?
Please show your work
Answers
Answer:
V = 0.5 L
Explanation:
Given that,
The volume of HCl, V = 2 M
We need to find the volume of 2.0M HCl is needed to prepare 0.50L of a 0.75M solution.
Let n be the number of moles of HCl.
\(n=c\times V\)
Where
c is molarity
\(n=2\times 0.5\\\\n=1\ mol\)
Let V be the volume of the solution. So,
\(V=\dfrac{n}{c}\\\\V=\dfrac{1}{2}\\\\V=0.5\ L\)
So, the required volume of the solution is equal to 0.5 L.
Is it true that we always see the same face of the Moon.
Yes
No Maybe
Answers
Answer: no
The moon orbits the Earth, and the Earth orbits the Sun, so we do not see the same part of the moon. We always see different parts of it.
Hope this helps you!
WILL GIVE BRAINLIEST!! pls help
(04.05 MC)
Read the chemical equation shown.
3SO2 + 2HNO3 + 2H2O → 3H2SO4 + 2NO
Which statement is true about this chemical equation?
A) H (hydrogen) was oxidized and S (sulfur) was reduced.
B) H (hydrogen) was reduced and N (nitrogen) was oxidized.
C) S (sulfur) was oxidized and N (nitrogen) was reduced.
D) S (sulfur) was reduced and N (nitrogen) was oxidized.
Answers
Based on the chemical equation of the reaction, S (sulfur) was oxidized and N (nitrogen) was reduced.
The correct option is C.
What is a redox reaction?A redox reaction is a name for a reduction-oxidation reaction.
In a redox reaction, oxidation and reduction occur during the reaction.
Oxidation involves a loss of electrons and results in an increase in the oxidation number of the oxidized species.
Reduction involves a gain of electrons and results in a decrease in the oxidation number of the reduced species.
Considering the given equation of reaction:
3 SO₂ + 2 HNO₃ + 2 H₂O → 3 H₂SO₄ + 2 NO
The oxidation number of nitrogen changes from +5 in HNO₃to +2 in NO. Hence, it is reduced.
The oxidation number of sulfur changes from +4 tin SO₂ to +6 in H₂SO₄. Hence it is oxidized.
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#SPJ1What causes this nuclear reaction to occur
Answers
Answer:
bombarding it with an energetic particle
Explanation: nuclear reaction, a change in the identity or characteristics of an atomic nucleus, induced by bombarding it with an energetic particle. The bombarding particle may be an alpha particle, a gamma-ray photon, a neutron, a proton, or a heavy-ion.
which of the following statements is true of iodine deficiency? group of answer choices it often is accompanied by zinc deficiency. it mainly affects the very elderly. it can cause mental impairment and brain damage. worldwide, the incidence is rare, thanks in large part to iodized salt. treatment often includes increased consumption of vegetables high in goitrogens.
Answers
Iodine deficiency can cause mental impairment and brain damage.
In nature, iodine is never found alone and is never concentrated enough to form standalone minerals. It only occurs in trace amounts in seawater, at a rate of about 50 mg per metric ton (0.0016 ounce per ton), as the iodide ion, I. Additionally, it develops in cod livers, oysters, and seaweed. Crude Chilean saltpetre contains sodium iodate (NaIO3) (sodium nitrate, NaNO3). Thyroxine, a substance made by the thyroid gland and found in the human body, contains iodine.
Stable iodine-127 is the only isotope of iodine that exists naturally. Iodine-131, a radioactive isotope with an eight-day half-life, is incredibly helpful. In medicine, it is used to monitor thyroid gland activity and treat thyroid cancer and goiter.
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when 0.224 g of sodium metal is added to an excess of hydrochloric acid, 2330 j of heat are produced. what is the enthalpy of the reaction as written? 2na(s) 2hcl(aq)⟶2nacl(aq) h2(g)
Answers
The enthalpy of the reaction as written is approximately 239,306 J/mol.
To calculate the enthalpy of the reaction, we need to use the heat released (2330 J) and the amount of sodium reacted (0.224 g) to determine the heat released per mole of sodium reacted.
The molar mass of sodium (Na) is 22.99 g/mol.
First, we need to calculate the number of moles of sodium reacted:
Number of moles of Na = Mass of Na / Molar mass of Na
Number of moles of Na = 0.224 g / 22.99 g/mol ≈ 0.00974 mol
Next, we can calculate the enthalpy change (ΔH) per mole of sodium reacted:
ΔH = Heat released / Number of moles of Na
ΔH = 2330 J / 0.00974 mol ≈ 239306 J/mol
Enthalpy (H) is a thermodynamic property that represents the total heat content of a system at constant pressure. It includes the internal energy of the system plus the product of pressure and volume. Enthalpy is often used to describe heat changes in chemical reactions, where the difference in enthalpy between the reactants and products determines whether a reaction is exothermic (releases heat) or endothermic (absorbs heat). Enthalpy is typically measured in joules (J) or kilojoules (kJ).
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1. Name each of the following binary compounds or ionic compounds with polyatomic ions.
a) LiBr
b)Cal2
Answers
B)Calcium Iodide
Sequence Determination of the Brain Peptide Leucine Enkephalin A group of peptides that influence nerve transmission in certain parts of the brain has been isolated from normal brain tissue. These peptides are known as opioids, because they bind to specific receptors that also bind opiate drugs, such as morphine and naloxone. Opioids thus mimic some of the properties of opiates. Some researchers consider these peptides to be the brain�s own pain killers. Using the information below, determine the amino acid sequence of the opioid leucine enkephalin. Explain how your structure is consistent with each piece of information.(a) Complete hydrolysis by 6 M HCl at 110 C followed by amino acid analysis indicated the presence of Gly, Leu,Phe, and Tyr, in a 2:1:1:1 molar ratio.(b) Treatment of the peptide with 1-fluoro-2,4-dinitrobenzene followed by complete hydrolysis and chromatography indicated the presence of the 2,4-dinitrophenyl derivative of tyrosine. No free tyrosine could be found.(c) Complete digestion of the peptide with chymopepsin followed by chromatography yielded free tyrosine and leucin plus a tripeptide containing Phe and Gly in a 1:2 ratio.
Answers
Option C) "are digested by proteases into both opiate and non-opiate peptides" is the correct response.
Like all other propeptides, the opioid propeptides is a protein precursor that must be cut into a smaller form to become active. Proteases convert the opioid propeptides into opiate and non-opiate peptides, the latter of which may or may not be active. Enkephalins, endorphins, and dynorphins, which are opiate peptides, work by blocking secondary systems, such as those that affect how pain is perceived.
The opioid receptors are essential signalling molecules in the brain that the leucine-enkephalin binds to. They include four peptide bonds in total. These are naturally occurring ligands that function as neurotransmitters and have morphine-like properties.
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