The light energy collected by the pigment contained in the leaves (such as chlorophyll) is used in a sequence of chemical events known as the light reaction of photosynthesis, which results in the production of ATP and NADPH.
The inputs and outputs of the light reactions are:
Inputs:
1. Light energy
2. Water (H2O)
3. NADP+ (Nicotinamide adenine dinucleotide phosphate)
4. ADP (Adenosine diphosphate) and Pi (inorganic phosphate)
Outputs:
1. Oxygen (O2) - a byproduct of water splitting
2. NADPH (Nicotinamide adenine dinucleotide phosphate hydrogen)
3. ATP (Adenosine triphosphate)
Step-by-step explanation:
1. Light energy is absorbed by chlorophyll and other pigments in the chloroplasts.
2. Water molecules are split, releasing oxygen gas and providing electrons and protons (H+ ions).
3. Electrons are transferred along the electron transport chain, while protons are pumped into the thylakoid space.
4. NADP+ is reduced to NADPH by accepting electrons and a proton.
5. The build-up of protons in the thylakoid space creates a proton gradient, which drives the synthesis of ATP from ADP and Pi through a process called chemiosmosis.
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Do you think fords suck why or why not
Answer:
yes i do
Explanation:
i personally think gmc and chevy are the best truck made, but thats just my opinion.
Crossing over occurs during which phase of meiosis?
(a) Interphase
(b) Telophase I
(c) Metphase II
(d) Prophase I
.
(d) Prophase I is the phase of the meiosis in which the crossing over of the chromosomes takes place.
Meiosis is a type of cell reproduction or division that occurs in the germ cells of the body. This division occurs in two phases; meiosis I and II. At the end of the division, it produces four daughter cells. This division helps to maintain the genetic variation among organisms.
Option (a) interphase is incorrect because the chromatin network appears in this stage.
Option (b) telophase I is incorrect because chromosomes reach poles of the cell in this stage.
Option (c) metaphase II is incorrect because it shows an arrangement of chromosomes on the equator
Prophase I is the phase of the meiosis in which the crossing over of the chromosomes takes place. It occurs in the pachytene stage of prophase I. The homologous chromosomes' non-sister chromatids exhibit an exchange of segments, and this process is called crossing over.
Thus, the correct option is (d).
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Which phrase describes foliated rocks?
Answer:
Letter A: Tend to break in half
Explanation:
Took the quiz! Hope this helps! :)
6. The three main regions of the brain that receive and process information are the cerebrum, the cerebellum, and the ____________________________.
Insectivora is a taxonomic grouping that was used to describe insect-eating like armadillos, hedgehogs, moles, and anteaters. The taxonomy of these animals has been revised in recent years, and insectivora is no longer widely accepted because this group of organisms lacks one common ancestor and is instead descended from several ancestors. Which term best describes insectivora?
A. Monophyletic
B. Haplophyletic
C. Paraphyletic
D. Polyphyletic
The term that best describes "Insectivore" in this context is "C. Paraphyletic."
A monophyletic group consists of an ancestral species and all its descendants. A haplophyletic group includes some, but not all, of the descendants of a common ancestor. A paraphyletic group includes an ancestral species and some, but not all, of its descendants. A polyphyletic group includes species that do not share a common ancestor. Since "Insectivore" comprises organisms descended from several ancestors and lacks one common ancestor, it does not form a monophyletic group. It is considered paraphyletic because it includes some, but not all, of the descendants of the common ancestor.
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Please help, I’m struggling.
1. Imagine you are Zia’s doctor. Use the information in the table above to write two questions are might ask whose answers would help you understand what kind of genetic mutation is causing Zia’s Piebaldism.
2. Explain how answering these questions would help you understand the specific genetic causes of Zia’s Piebaldism?
As Zia is suffering from Piebaldism, the two questions are might ask whose answers would help you understand are first that does anyone in the family has this issue? and the second one that The symptom is developed afterwards of these are present since birth? By answering these questions would help to understand the specific genetic causes of Zia’s Piebaldism.
what is Piebaldism?Piebaldism is a genetic condition, generally present since birth. In this a person can develop an unpigmented or white patch of skin or hair.
The two questions are might ask whose answers would help you understand are first does anyone in the family has this issue? and the second one that The symptom is developed afterwards of these are present since birth?
When answering this question, person can understand the specific genetic cause like if the family member is having such disease, it will definitely pass on to the next.
While answering second question is important as this is present since birth.
Thus, answering these questions would help to understand the specific genetic causes of Zia’s Piebaldism.
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Question 1 of 10
A plant is able to survive in a temperate forest biome, but cannot survive in a
desert biome. Which is most likely a characteristic of this plant?
A. Able to stop water from evaporating
B. Needs sunlight year-round to survive
C. Able to live through changes in temperature
D. Does not need very much water to survive
SUBMIT
(HELPPPPPP !!!!!! N HURRRYYY)
Answer:
C Able to live through changes in temperature
Explanation:
During photosynthesis in plants, what is the source of the carbon in the glucose sugar molecule
(C6H12O6)?
Carbon dioxide in the air
Carbon monoxide in the air
Carbon particles in the soil
Carbon particles in water
Answer:
Carbon in the air
Explanation:
The chrysanthemums shown in the photo produce their
blooms in the fall.
Which term best describes this kind of plant?
A. Nonflowering plant
B. Day-neutral plant
C. Long-day plant
D. Short-day plant
Answer:
Solution A. The phrase that best describes this kind of plant is non-flowering plants.
without flowers plants.
Mosses, liverworts, hornworts, lycophytes, and ferns are among the non-flowering plants that reproduce through spores. Conifers and gymnosperms are non-flowering plants that still set seed.
There are no grains, fruits, or flowers on non-flowering plants. Typically, spores are used to create them. They contain cryptogams and gymnosperms. However, a group of plants known as gymnosperms do produce seeds.
According to the options, the distinction between flowering and non-flowering plants is that the former "produce cones, while the latter do not. " ".
This is demonstrated by the fact that flowering plants produce seeds from their flowers, whereas non-flowering plants only produce cones.
Another difference between the two is that flowering plants use pollination while non-flowering plants use dispersal.
Option A) "Nonflowering plants" is the phrase that best describes this kind of plant. ".
which molecule has the greatest effect in controlling lung ventilation? a. oxygen in the blood b. hydrogen ions in the blood c. carbon dioxide in the blood d. oxygen in the cerebrospinal fluid
The correct answer is option C
C carbon dioxide in the blood
What is Lung ventilation?
In "Lung Ventilation: Natural and Mechanical," the processes of respiration and lung ventilation are discussed, with an emphasis on the problems specifically associated with mechanical ventilation. The anatomy and physiology of respiration, as well as how the lungs and the rest of the respiratory system are involved, are covered at the beginning of the chapter. The three mechanical ventilation working principles are then introduced. It then concentrates on intermittent positive pressure ventilation (IPPV), which is how the majority of contemporary critical care ventilators work, and explains how it works pneumatically. The chapter concludes with a comparison of mechanical/artificial and natural lung ventilation.
The majority of patients who need mechanical breathing have both lungs inflated and deflated simultaneously. Mechanically separating the lungs such that only one lung may be ventilated is known as one lung ventilation (OLV). OLV is a common technique for facilitating surgical exposure during thoracic procedures. It can be used to separate a pathologic lung from a healthy lung to minimize soiling or to allow for differential ventilation.
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Which cell type is produced by mitosis?
A. Haploid
B. Diploid
C. Sperm
D. Gamete
Answer: B
Explanation:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Mitosis produces diploid cells with two sets of chromosomes. So the correct option is B.
Why does mitosis produce diploid cells?The process of a cell in which its chromosomes are replicated and segregated is called mitosis. This process divides the cell with each having an equal amount of genetic material and identical nuclei.
Mitosis has two steps - the first is karyokinesis which means the division of the nucleus and the second is cytokinesis which means the division of the whole cell. The result is the production of 2 daughter cells which are completely genetically identical to each other.
To give rise to an identical daughter cell, each chromosome is copied and each daughter cell receives one of the copies. The parent cell and the resulting daughter cells both remain diploid.
In contrast to this, meiosis produces haploid cells with one set of chromosomes. Meiosis is only performed by the gametes but mitosis is performed by the somatic cells of the body.
Therefore, the correct option is B.
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Carbohydrates are the main source for the body to _______
A
Gain Energy
B
Build muscle
C
insulate itself
D
Protect itself
Answer:
gain energy
Explanation:
During anaphase, a free kinetochore formed by disrupting an attached spindle fiber results in an immediate block to the process. This result shows that:
During anaphase of cell division, a free kinetochore formed by disrupting an attached spindle fiber results in an immediate block to the process. This result shows that the kinetochores play a critical role in the separation of sister chromatids during cell division.
The kinetochore is a protein structure located at the centromere of each chromosome, which attaches the chromosome to the spindle fibers and helps to align and separate the sister chromatids. When the attachment of the spindle fiber to the kinetochore is disrupted, the separation of the sister chromatids is blocked because the spindle fibers are responsible for pulling the sister chromatids apart. The disruption of spindle fiber attachment to the kinetochore can occur due to the loss of tension on the spindle fibers or the detachment of the kinetochore from the spindle fiber.
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HELP ASAPPPP!!!! PLEASEEEE
While sitting on a picnic blanket at the park, Sami didn't notice ants swarming around her feet and repeatedly biting her. She became very itchy and uncomfortable. Now each time she goes to the park for a picnic, she becomes itchy and uncomfortable. What is feeling itchy and uncomfortable just by going to the park in this scenario?
Unconditioned stimulus
Unconditioned response
Conditioned stimulus
Conditioned response
Answer:
C: Conditioned stimulus
Explanation:
Conditioned Stimulus is feeling itchy and uncomfortable just by going to the park in this scenario. So, the correct option is (C).
What is Conditioned Stimulus?A conditioned stimulus is a stimulus which can be eventually trigger a conditioned response. It is a type of learned stimulus which can eventually trigger a conditioned response.
It is repeatedly associated with an unconditioned stimulus until it acquires the ability to elicit a response which previously did not occur. In Pavlov's experiment, the sound of the bell served as the conditioned stimulus, while the salivation of the dog served as the conditioned response.
A substitute stimulus known as a conditioned stimulus causes an organism to respond in the same way which an unconditioned stimulus does.
Thus, conditioned Stimulus is feeling itchy and uncomfortable just by going to the park in this scenario. So, the correct option is (C).
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How might an environment different from the one you experienced have affected the development of personality characteristics that you believe you inherited from one or both of your parents?
Answer:
The environment has a great impact on our behavior and personality traits which were believed to be inherited from the parents.
Explanation:
Each of the parents contributes 50% of the offspring DNA, and your inherited genetic makeup may have an impact on your personality. It is frequently asserted that our environment has a greater influence on our personality than our genetics. The adaptability of our capacities, cognitive abilities, and social interests accounts for a large part of our personality. Only via our interactions with our surroundings can we gain the flexibility that forms us.
Yes, our genes are passed down to us, yet it has been proposed that they have no bearing on our behavior.
As a result, a kid is born into a situation that prompts them to react as specified in birth order stereotypes, and therefore our personality has been shaped by our surroundings. However, there is little scientific evidence to back up this theory, therefore it's possible that personality is determined by genetics.
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Rabbits must be always aware of predators that may catch and eat them. In
natural selection what would we consider these predators?
Answer:
There are many rabbit predators that will attack or eat the rabbit, including man. In fact, rabbits have more than most.
Explanation:
Depending in which part of the world you live, will determine the most likely predators you need to be aware of. With domestic/pet rabbits, perhaps the most common predators are pet dogs, pet cats and foxes. However, don't think these are the only ones. Many people are surprised to learn that large birds are a predator to rabbits, especially if the rabbit is a baby, young or a small breed type. Such birds, depending on where you live, include Hawks, Sparrow Hawks, Owls, Falcons, and kestrels. Other rabbit predators include Weasels, ferrets, badgers, stoats and snakes.
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Which of the statements best describes why primary succession occurs before secondary succession but secondary succession may
occur faster and result in higher biodiversity?
es )
A)
Primary succession introduces animal species to the area while secondary
succession introduces plant species to the area.
B)
Primary succession establishes soil in the area while secondary succession
allows for recovery of the community after a disturbance.
Primary succession increases the moisture and humidity in the area while
secondary succession increases the ground cover by plants in the area.
C)
Eliminate
D)
Primary succession allows for decomposition of fire-damaged plants while
secondary succession allows for the migration of new animals into the
area.
Answer:
thanks... I would say is the answer: Primary succession establishes soil in the area while secondary succession allows for recovery of the community after a disturbance. Primary succession increases the moisture and humidity in the area while secondary succession increases the ground cover by plants in the area.
Explanation:
thank you for posting all the comments!
have a great night!
ATP is a type of molecule that
can provide energy for biological
processes. Explain how the
energy is being used in Model 4
Given what we know, we can confirm that ATP is used by cells as the energy source to power cellular activity by breaking the bond that holds its third phosphate.
What we know about ATP.This molecule provides chemical energy. This is done by using the chemical energy liberated after breaking the phosphate bond in ATP.This results in an ADP molecule.Therefore, we can confirm that in the image, the ATP molecule is being used to power the active transport mechanism by using the chemical energy released when ATP is transformed into ADP through the loss of a phosphate group.
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Great Elephant Census
Answer:
"The Great Elephant Census (the largest wildlife survey in history) was an African-wide census designed to provide accurate data about the number and distribution of African elephants by using standardized aerial surveys of hundreds of thousands of square miles or terrain in Africa.
Explanation:
"The final results from Great Elephant Census show 352,271 African savanna elephants in 18 countries, down 30% in seven years"
Short hair (S) is dominant to long hair (s) in cats. What would be the genotype(s) of a cat with long hair
A SS or Ss
B ss
C Ss
D SS
Answer:
A,C,D
Explanation:
Pretty much just A
Thrombin is the active form of the zymogen ________ and catalyzes the reaction of ________ to ________:
Thrombin is the active form of the zymogen prothrombin and catalyzes the reaction of fibrinogen to fibrin.
Prothrombin is a zymogen, which is an inactive precursor of an enzyme. It is produced and released by the liver into the bloodstream. When an injury occurs and there is damage to blood vessels, a complex series of events known as the coagulation cascade is initiated. This cascade involves a sequence of enzymatic reactions that ultimately lead to the formation of a fibrin clot, which helps in the process of hemostasis and wound healing.
One critical step in the coagulation cascade is the conversion of prothrombin to its active form, thrombin. This conversion is catalyzed by a proteolytic enzyme called prothrombinase, which is formed by the interaction of various factors in the cascade. Prothrombinase cleaves a specific peptide bond in prothrombin, leading to the release of thrombin.
Thrombin then acts as a serine protease, catalyzing the final step in the coagulation cascade. It converts soluble fibrinogen, a plasma protein, into insoluble fibrin strands. Fibrin strands form a meshwork that traps platelets, red blood cells, and other components to form a stable blood clot at the site of injury. This clot helps in preventing excessive bleeding and provides a framework for tissue repair.
In summary, thrombin is the active form of prothrombin, a zymogen. It catalyzes the reaction of fibrinogen to fibrin, playing a crucial role in the formation of blood clots during the coagulation process.
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5. A study was done to see the effect of different cancer drugs on tumor size in male patients.
Independent Variable:
Dependent Variable:
Constants:
Answer:
Independent Variable: different types of cancer drugs
Dependent Variable: tumor size
Constants: gender of patient, (type of cancer/tumor perhaps)
Explanation:
The independent variable will always be what modifies the dependent variable to change. In this case, it is the different types of cancer drugs modifying the size of the tumor in the patients. Dependent variables are what get changed based off of what it is being modified by. The constants should be what stays the same throughout the experiment, or else it won't be a consistent one.
what types of molecules is DNA made of
Explanation:
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
DNA is a linear molecule composed of four types of smaller chemical molecules called nucleotide bases: adenine (A), cytosine (C), guanine (G), and thymine (T). The order of these bases is called the DNA sequence. Segments of DNA that carry genetic information are called genes, and they are inherited by offspring from their parents during reproduction.
Temperatures around large coastal bodies of water tend to be more moderate than temperatures inland. What property of water accounts for this?.
We know that temperatures around coastal bodies of water tend to be more moderate than temperatures inland because of the water's heat capacity.
What is heat capacity?This is another word for the thermal capacity of a substance. This refers to the amount of heat needed to raise the substance by one degree of temperature. The heat capacity of water is much higher than that of land.
Therefore, given that the heat capacity of water is much higher than that of land, we can confirm that temperatures around coastal bodies of water tend to be more moderate than temperatures inland because of the water's heat capacity.
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Which of the following is a density-dependent limiting factor?
a. Disease
b. Drought
c. Heat wave
d. Forest fire
The following is a density-dependent limiting factor: the disease that is in Option a. The disease is a density-dependent factor that is dependent on the density of the population.
What are the density-dependent factors?There are two types of factors that regulate the population: density-dependent factors and density-independent factors. The density-dependent factors include disease, a shortage of food, etc., and all these negatively affect the density of the population, while the density-independent factors are the heat wave, fire, and drought, which do not depend upon the population density.
Hence, the following is a density-dependent limiting factor: the disease that is in Option a.
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DNA is the genetic material that...
Answer:
the produces all genes and is passed down from parent to child and provides the "instructions" on the growth of the body, if the DNA is altered it can lead to things such as cancer, genetic mutations, etc.
Explanation:
Answer:
The answer is
That make up a living thing
our sequence is 5' - cttataaagccgtacaaaatctttctagcgcaaaa - 3'. for simplicity sake, only consider the 5' to 3' direction. consider the underlined c. would a change to a g result in a change in gene expression?
No, a change to a G would not result in a change in gene expression as the underlined C is a non-coding nucleotide and does not have any effect on gene expression.
Non-coding DNA corresponds to the portion of an organism's genome that does not code for amino acids, the building blocks of proteins. Some noncoding DNA sequences are known to play functional roles such as regulation of gene expression, whereas other regions of noncoding DNA have no known function. Other regions of non-coding DNA are important for protein assembly. By altering one of these regions, a variant (also known as a mutation) in the noncoding DNA can turn on the gene, causing the protein to be produced in the wrong place or at the wrong time. There are two types of SNPs in the coding region.Synonymous and non-synonymous SNPs. Synonymous SNPs do not affect the protein sequence, whereas non-synonymous SNPs change the amino acid sequence of the protein.
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Uide Questions:
1. Based on the Punnett square, how many of the offspring may be
short-haired offspring? Long-haired?
2. Will there be a pure breed (homozygous)short haired offspring in the
cross? Justify your answer.
1. Based on the Punnett square, the number of short-haired offspring and long-haired offspring can be determined by counting the respective combinations of alleles.
2. There is a possibility of pure breed (homozygous) short-haired offspring in the cross if both parent organisms contribute the short-haired allele.
1. Based on the Punnett square, we can determine the potential number of short-haired and long-haired offspring. Let's assume that "S" represents the dominant allele for short hair and "s" represents the recessive allele for long hair. If both parents are heterozygous (Ss), the Punnett square would look like this:
S s
S SS Ss
s Ss ss
From the Punnett square, we can see that there are three possible genotypes: SS, Ss, and ss. The SS and Ss genotypes correspond to short-haired offspring, while the ss genotype corresponds to long-haired offspring.
Therefore, based on the Punnett square, 75% of the offspring (3 out of 4) may be short-haired, while 25% of the offspring (1 out of 4) may be long-haired.
2. There will not be a pure breed (homozygous) short-haired offspring in this cross. A pure breed (homozygous) short-haired offspring would have the genotype SS. However, in the given cross, both parents are heterozygous (Ss). This means that each parent carries one copy of the dominant allele (S) and one copy of the recessive allele (s).
When the parents are crossed, the possible genotypes of the offspring are SS, Ss, and ss. As we can see from the Punnett square, the genotype SS is not possible as there is no parent that contributes the recessive allele (s) to create a homozygous short-haired offspring.
Therefore, all the short-haired offspring in this cross will be heterozygous (Ss), carrying one copy of the dominant allele (S) and one copy of the recessive allele (s).
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Light has different colors that have different ______.
explain how limited resources and trade-offs may affect life histories. compare this for r-selected and k-selected species.
Limited resources and trade-offs influence life histories differently for r-selected and K-selected species. R-selected species, such as insects and small mammals, prioritize rapid reproduction and high population growth.
They typically have a short lifespan, early maturity, high reproductive output, and minimal parental care. This strategy allows them to exploit favorable environments and quickly colonize new areas.
In contrast, K-selected species, including larger mammals and long-lived organisms, have a slower reproductive rate, delayed maturity, and invest more resources in individual offspring.
They prioritize survival and competition for limited resources, leading to traits such as longer lifespans, delayed reproduction, and higher parental investment.
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