The statement which is true about cell respiration is; Choice B: Glycolysis splits sugar to produce pyruvate and FADH2-
Definition of terms:
Cellular respiration is a process used by all living organisms to convert glucose into energy.
Cellular respiration is a collection of three unique metabolic pathways: glycolysis, pyruvate oxidation, the citric acid cycle, and the electron transport chain.
Glycolysis; This pathway is anaerobic and takes place in the cytoplasm of the cell. This pathway breaks down 1 glucose molecule and produces 2 pyruvate molecule. A process which releases FADH2- in the process.Pyruvate Oxidation: In eukaryotic cells, the mitochondria is the site of pyruvate oxidation. The release of CO2 is a characteristic of this step.The Electron transport chain: The electron transport chain is the final component of aerobic respiration and is the only portion of glucose metabolism that uses atmospheric oxygen.Electrons are rapidly transferred from one component to the next to the endpoint of the chain, where the electrons reduce molecular oxygen, O2 producing water in the process.
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What does this model represent
What happens when you change the material through which a wave travels?
Answer:
Changing the material will speed up or slow down the wave depending on the index of refraction of the material.
To approximate the actual concentration of enzymes in a bacterial cell, assume that the cell contains equal concentrations of 1,000 different enzymes in solution in the cytosol and that each protein has a molecular weight of 100,000. Assume also that the bacterial cell is a cylinder (diameter 1.0 m, height 2.0 m), that the cytosol (specific gravity 1.20) is 20% soluble protein by weight, and that the soluble protein consists entirely of enzymes. Calculate the average molar concentration of each enzyme in this hypothetical cell.
Answer:
2.4 × 10⁻⁶ M
Explanation:
Molar concentration = no of moles of solute (enzymes)/volume of solvent(cystosol)
Let V = volume of solvent = volume of cystosol = πd²h/4 where d = diameter of cell = 1.0 m and h = height of cell = 2.0 m
Concentration of enzymes, C = n/V where n = no of moles of enzymes
Also, n = m/M where m = mass of all enzymes and M = molecular weight of protein = 100,000
Note that the solvent for the enzymes is cystosol, since they are dissolved in it.
Density of cystosol,ρ = specific gravity of cystosol in g/cm³ = 1.20 g/cm³.
Now, ρ = m'/V where m = mass of cystosol and V = volume of cystosol
m' = ρV
m' = 1.20V
Given that 20 % of the cystosol is protein and all protein are enzymes, the mass of enzymes is thus m = 0.2m' = 0.2 × 1.20V = 0.24V
C = n/V
= m/MV
= 0.24V/100000V
= 2.4 × 10⁻⁶ mol/cm³
= 2.4 × 10⁻³ mol/dm³
= 2.4 × 10⁻³ M
This is the concentration of all the 1000 enzymes.
So, the concentration of one enzyme is 2.4 × 10⁻³/1000 M = 2.4 × 10⁻⁶ M
Given a DNA sequence of ACG, what would be the corresponding RNA sequence? Once you determine the RNA sequence, what would be the corresponding amino acid for the RNA codon? Would a change in one nucleotide of the DNA alter the corresponding amino acid? Explain.
Answer:
- RNA sequence: UGC
- Amino acid sequence: Cysteine
- Yes, a change in nucleotide will alter the amino acid.
Explanation:
According to this question, a DNA sequence was given as follows: ACG. The process of transcription will produce a RNA sequence from this DNA sequence using complementary base pairing i.e. A-U, G-C etc. Based on this, the mRNA sequence that will result of the DNA sequence above is UGC.
The resulting mRNA transcript is a codon (three nucleotides) that will be used in the process of translation to yield an amino acid. The mRNA sequence: UGC codes for amino acid Cysteine.
- A change in one nucleotide of the DNA will alter the corresponding amino acid because DNA sequence in a particular reading frame is responsible for the production of amino acid. Hence, a slight change in nucleotide might change the reading frame of the sequence and hence give rise to a different amino acid.
occurs when the population is well below the carrying capacity.
A. Exponential growth
B. Logistic growth
O C. Population crisis
O D. Population crash
SUBMIT
Answer:
A
Explanation:
When the population is well below the carrying capacity, it results into Logistic Growth.
What is Logistic Growth?As competition increases and resources become increasingly scarce, populations reach their carrying capacity causing growth rate to slow nearly to zero.
This produces an S-shaped curve of population growth known as the Logistic Curve.
What are the factors determining Carrying Capacity?Resources important for the survival of the species can act as a factor for Carrying Capacity .Example- For plants , it is water, sunlight, nutrients and space and for Animals- Food, Water, Shelter and Nesting Space.
Limited quantities of these resources results in competition between members of the same population or Intraspecific competition.
Examples of Logistic Growth are:
Yeast - A microscopic fungus can produce S shaped curve when grown in test tube.
Logistic Growth takes place when population's per capita growth rate decreases as population size approaches a maximum imposed by limited resources i.e. the carrying capacity.
Ecologists uses different methodologies for modelling Population Dynamics, amongst which major ones are Exponential Growth and Logistic Growth.
When the per capita rate of increase takes the same positive value regardless of the population size, it results into Exponential Growth whereas the per capita rate of increase decreases as the population increases towards a maximum limit, then we get Logistic Growth.
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mendels law of independent assortment
Answer:
Mendel's law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene. Let's look at a concrete example of the law of independent assortment.
Explanation:
Phenylketonuria (PKU) is a genetic disease caused by the inability to break down the amino acid phenylalanine. If untreated it leads to severe mental disabilities. PKU is due to a recessive allele. Assume that the US population is in Hardy-Weinberg equilibrium with respect to this gene. In the US the PKU rate is 1 out of every 10,000 babies born. What percent of the US population have no alleles for PKU
Answer:
Therefore, 98% of the US population have no alleles for PKU
Explanation:
The Hardy-Weinberg equilibrium states that the amount of genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
The Hardy-Weinberg equilibrium is expressed quantitatively using a mathematical equation known as the Hardy-Weinberg equation. the equation is given below:
p² + 2pq + q² = 1
also, p + q = 1
Given a pair of alleles, S and s with A dominant and a recessive
where p is the frequency of the dominant allele in the population,
q is the frequency of the recessive allele in the population,
p² represents the frequency of the (SS) dominant genotype,
q² represents the frequency of the (ss) recessive genotype,
2pq represents the frequency of the heterozygous genotype
From the given question,
q² = 1/10000 = 0.0001
q = 0.01
from p + q = 1
p = 1 - 0.01 = 0.99
p² = 0.98
Therefore, 98% of the US population have no alleles for PKU
Wrong answers only!! What are 3 sustainable tourism takes into account
Answer:
• robing
• playing h&s
• Hw
Explanation:
How did Burger King get Dairy Queen pregnant?
Answer:
they where like McDonald's they broke the icecream maker
which of the following does not affect the rate of photosynthesis a) temperature b) light intensity c) soil d ) water intake
Answer:
a) temperature
Explanation:
took test and got right
light intensity does not affect the rate of photosynthesis .
what is photosynthesis ?The process in which plants, algae and certain bacteria use light energy of sunlight, water, carbon dioxide and convert light them into chemical energy and starch. called as photosynthesis.
Photosynthesis occur in special organelles named chloroplast which has its own DNA, genes and hence can synthesize their own proteins.
Chloroplasts have stroma, fluid, and stack of thylakoids known as grana, three types of chlorophyll such as chlorophyll a, chlorophyll b, and carotenoids.
Oxygenic photosynthesis is commonly observed in plants, algae and cyanobacteria where electrons are transferred from water to carbon dioxide by using light energy, to produce energy, oxygen is produced along with carbohydrates.
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living in an unhealthy community will lead to.
Explanation:
if you mean dirty or not cleaned in a while then you can get sick from the lingering germs, and you can get sick or die if something like a gas pipe has rusted open from not being cleaned. there are many other examples.
Using the law of superposition and the principle of cross-cutting relationships, which of the layers of rock in this image is younger than layer C and closest in age to layer C?
A: Layer A
B: Layer E
C: Layer D
D: Layer B
Answer:
D. Layer B
Explanation:
The correct answer is Layer B.
The law of superposition actually states that the sedimentary rock unit is at the bottom while the the youngest rock is at the top. The principle of cross-cutting relationships states in layers of rocks, a fault or intrusion that cuts through rock layers is younger than the rocks that it cuts through.
Layer B was actually formed after Layer C. This makes Layer B younger than Layer C and closest in age to Layer C. The intrusion, Layer D is the youngest of all.
Answer:
b
Explanation:
true or false with reason :- partner firm is a non trading concern
Answer:
True
Explanation:
A partnership firm can be said to be a trading business with a maximum limit of ten partners involved in the purchase and sale of goods and services.
which one contains many organelles with different functions prokaryotic cell eukaryotic cell
Answer:
Eukaryotic Cell
Explanation:
Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.
Conifers produce seeds in flowers?
QUESTION 1
Which of the following statements are true of arteries and veins? (Read carefully and select all of the correct statements.)
A. Venous anastomoses ensure that oxygenated blood will get to tissues.
B. The endothelium of both arteries and veins contributes to the prevention of abnormal clotting.
C. The smooth muscle layer of veins is thicker than that of arteries because veins are farther from the heart.
OD. Only veins have valves, which keep the blood moving between heartbeats.
E. The fibrous connective tissue layer of arteries is relatively thin because the blood is moving fast.
OF Arterial anastomoses ensure that blood will be able to return to the heart.
Answer: B, D
Explanation:
Is this a Med School K Question? The endothelial lining of blood vessels have many functions, including, preventing clotting. Veins carry blood that has very low pressure and have valves to control the one-way flow of blood. The rest are false. Only the pulmonary vein carries oxygenated blood. Arteries have more smooth muscles than veins. The anastomoses are present to act as alternative pathways to reach cells.
Earth’s rotation caused surface currents in the Northern Hemisphere to
A. Curve Clockwise
B. Move in straight lines
C. Curve Counterclockwise
D. Move in diagonal lines
During transcription, an RNA molecule is formed
a. that is complementary to both strands of DNA.
b. that is complementary to neither strand of DNA.
c. that is double-stranded.
d. inside the nucleus.
Answer:
c. that is double stranded
You gain health benefits from exercising for a minimum of
a 10 minutes three times a week
b. 10 minutes two times a week
C 20 minutes three times a week
d. 20 minutes two times a week
Please select the best answer from the choices provided
O O O O
ооо »
Answer:
c. 20 minutes three times a week
Explanation:
Exercising is very important, becuase it improves your health and reduce the risk of developing several diabetes, cancer and many other terrible other effects. Physical activity and exercise can have immediate and long-term health benefits. Regular activity can improve your quality of life.
Go out and exercise! Even if it's just yoga!
Hope this really helps!
Answer:
C.20 Minutes Two Times A Week
Explanation:
Sally, 9-year-old girl, just did an awesome backflip on her trampoline. Instead of landing in a similarly awesome manner, she miscalculated and landed on her neck. Sally stood up with pain in her neck and does not appear to be able to extend her left arm very well. An x-ray shows a fracture of her C6 vertebrae that is compressing down on her C7 vertebrae impacting the spinal nerve located between C6 and C7 vertebrae. Which spinal nerve did Sally likely injure
Answer:
The C7 spinal nerve
Explanation:
The C7 spinal nerve exits on each side through the intervertebral foramen between the C6 and C7 vertebrae. The C7 spinal nerve has both a sensory root which is composed of sensory fibers and a motor root. This nerve is required to control motor functions including shoulder movement (i.e., adduction, abduction and rotation). The C7 dermatome is a region of skin that receives sensory inputs from the C7 spinal nerve.
Which symbol represents a hybrid?
Aa
dE
BB
cc
Answer:
I think its Aa
Explanation:
Not very good at biology :/
Select all that apply.
Which of the following qualities do responsible adults possess?
friendliness
reliability
punctuality
patience
7. Apply: Look carefully at the picture below and you will see an insect called a
katydid. Katydids evolved from grasshoppers through natural selection. Use
what you have learned to explain how this could have happened.
Answer: This description is an example of camouflage adaptations.
Explanation:
The grasshoppers are the insects which feed on plant parts and they are able to change their color with respect to their surrounding environment. For example, if they are living on the brown tree trunk they change their color to brown and on the green grass or green leaves they change to green to remain undetected by the predators. This way they are able to camouflage their predators this adaptation allows their survival in their environment with due course of natural selection. The phenotypic trait that is grasshopper is able to change its color increases the chances of survival of the grasshopper. Kaytids have evolved from grasshoppers means they have camouflage traits as that in parent grasshopper species. They have structure which blends with surrounding environment, that is they have wings that mimic that of pattern of leaf venation, also when they change the color to brown the shape of the body appears to be as that of stem. This structural adaptation help them to camouflage their predators.
Please anyone ASAP help
Answer:
C. There is a 25% chance of short offspring.
Explanation:
In the simplified genotypes of a Punnett square cross, we deal with two genotypes. In this case, we are looking at a cross between Tt and Tt. T is dominant and t is recessive, meaning that someone with any genotype with T in it will be tall.
TT, Tt, and Tt will all produce tall offspring, while tt will produce short offspring.
This means there is a 75% chance of tall offspring, or 3:4.
50% or 2:4 are expected to have the Tt genotype.
Only 1 of the 4 will produce short offspring, which is 25%.
4. PLEASE HELP!! 25 points!!! (((Timed!!)))
URGENTTT
Which of the following best describes how independent assortment results in inherited variations within a species and how it contributes to evolution?
A Independent assortment results from the copying of DNA during cell division and causes variations that are sometimes beneficial to a species
B Independent assortment results from the binary fission of a single cell and causes mutations that can be beneficial or harmful to a species
C Independent assortment occurs during mitosis and causes uncontrolled cell division which is harmful to a species
D Independent assortment occurs when chromosomes separate during meiosis and causes variations that can be beneficial or harmful to a species
Answer:
D Independent assortment occurs when chromosomes separate during meiosis and causes variations that can be beneficial or harmful to a species
Explanation:
During meiosis, the homologous chromosomes separate and segregate independently of each other. This process is referred to as 'independent assortment'. In consequence, different gene variants or 'alleles' localized in homologous chromosomes segregate independently of each other during gamete formation, thereby one particular gamete has an equal probability to carry either of these segregating alleles. Independent assortment generates genetic variation in the gametes, which can be beneficial or deleterious in a given environment.
The option that best describes how independent assortment results is D Independent assortment occurs when chromosomes separate during meiosis and causes variations that can be beneficial or harmful to a species
What is independent assortment ?Independent assortment is a phenomenon that occurs during meiosis, which is the process of cell division that produces gametes (sex cells). During meiosis, the chromosomes are randomly sorted into the gametes. This means that the alleles (different forms of a gene) on different chromosomes can be inherited together or separately.
This random assortment of alleles can lead to new combinations of traits, which can be beneficial or harmful to a species.
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In one of these systems, the prey are very large animals and the predators are verysmall animals, such as elephants and mosquitoes. Thus it takes many predators toeat one prey, but each prey eaten is a tremendous benefit for the predator population.The other system has very large predators and very small prey. Determine whichsystem is which and provide a justification for your answer.
Answer:
Due to its size and feeding requirement.
Explanation:
In the forest ecosystem, many lions feeds on one deer or buffalo because the food is in large amount and this food is enough to fulfill the requirements of that lions so we can say that many predators eats one prey while on the other hand, there are some predators that feeds on many prey at one because they are small in size and one prey did not fulfill their requirement so that's why the predator feeds on many preys. Fox feeds on many mice is the example of one predators feed on many prey.
Genetic information is stored in which cellular structure?
A. Cytoplasm
B. Chromosome
C. Mitochondrion
D. Golgi body
Really need help on this
Charles Darwin observed a unique beak size
visited.
and shape in the finch population of each of the Galapagos Islands
th.
Which is the most likely cause of the observed variation?
Answer:
The Islands had different biomes
Explanation:
They had began to adapt to their surroundings.
1. According to Keller Larry it is the process by which governance is done.
A.politic
B. Governance
C. Government
D.alloftheabove
2. Politics refers to the study of state and government in the other hand, political science describes the
processes by which people and institutions exercise and exist.
A.Both statements are TRUE
C Only the first statement is TRUE
B. Only the first statement is FALSE
C.only the first statement is true
D. Both statementare FALSE
3. Defines as the execution of power, in whatever forms, policies, laws, decisions it chooses.
A.State
B. Government
C.politics
D.Givernance
4. It is the set-up that governs managing the country, the economy, the main social institutions -
A.Government
B. Governance
C.state
D.Politics
5. According to Keller Larry it is the process by which governance is done.
A Politics
B. Governance
C. Government
D.all of the above
6. Which of the following is a CORRECT understanding of ideology?
A.Attitudes
B. Values
C. Beliefs
D.all of the above
7. What can'we infer from the phrase, Men by nature is a political animal!
A. Everyone is subject to politics
C. Only politicians exercise Politics
B.Politics is portrayed by animals
D. C only
8. In general this means organizing human activities.
A. Politics
B. Government
C. Social
D. all of the above
9. Which of the following is an INCORRECT understanding of Politics?
A. It deals with theories
C. Understanding social groups
B. Making non government policies
D. A and B
10. Which of the following is associated with Political Science?
A. Political Theory
B. Public Law
C. Public Administration
D.all of the above
11. Which of the following facilitates change in Politics?
A.society
B.ideology
C.b only
D. a and b
12. Which of the following is the elements of politics
A.Power
B. Rule
C. Authority
D.all of the above
13. How do society regard politics as a desirable practices ?
A.Do the right thing
B. Being a law breaker
C. Being neutral
D all of the above
14. Which one is not an ill-effect of Politics?
A. Corruption
B. Discrimination
C. Equalities
D. Deviance
15. What is regarded as a means of organizing human activities
A.Government
B. Political science
C. Politics
D. All of the above
16.It is the right and obligation of qualified Filipino citizen to vote in the national and local election
A.Suffrage
B. Impeachment
C. Retirement
D. All of the above
17. Which of the following exercise legitimate power in government
A.Authority
B. Bureaucracy
C. Citizen
D. All of the above
18. Which of the following is the means by which the peope choose their official for definite and fixed
periods being as their representatives in the government.
A.Election
B Governing
C. Policies
D. All of the above
19. The power of the people to propose amendments to the constitution to propose and enact legislation
A.Succesion
B. Initiative
C. Impeachment
D. All of the above
_20. The study of politics is
also known as
A. Social Science
B. Natural Science
C. Political Science
D. All of the above
21.Its an ideology that have an idea of an organically unified national community and individual identi
must be entirely absorbed into the community or social group.
A. Liberalism
B. Fascism
C. Conservatism
D.All of the above
politics because politics is one of the major things
What most likely caused a rock formation?
A. Wind erosion over many years
B. Erosion by waves over many years
C. The rock was chipped away by animals
D. High temperatures that melted the rock