Answers
Photosystem II (PSII) is one of the proteins complex involved in the light-dependent reactions of photosynthesis, specifically, their enzymes capture the photons of light to energize electrons, and water is split to form hydrogen ions and oxygen.
The oxygen ions or protons are used by the ATP synthase to produce ATP and the electrons reduce NADP+ into NADPH.
So, this means PSII is responsible for the production of ATP and NADPH, but not for carbon fixation and the production of sugars.
This means ATP and NADPH concentrations would decrease, while there would be no change in the concentration of sugars.
Related Questions
Describe the relationship between genes, proteins, chromosomes, and cells.
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Answer:
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
Explanation:
Genes are segments of DNA that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
What are chromosomes?Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
The term chromosome comes from the Greek words for colour (chroma) and body (soma). Scientists gave this name to chromosomes because they are cell structures, or bodies, that are strongly stained by some colourful dyes used in research. The unique structure of chromosomes keeps DNA tightly wrapped around spool-like proteins, called histones.
Without such packaging, DNA molecules would be too long to fit inside cells.
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Which of the following numbers, on the pH scale, would indicate that a substance is acidic? Group of answer choices 12.0 13.5 8.0 5.0
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Answer:
13 am I write please say you because I an 17
identity each adaptation as structural or behavioral adaptations.
v
Monkeys have a prehensile tail that allows them to grab and hold onto tree branches.
Moose make mating calls to locate potential mates.
Whales are covered in a thick layer of blubber, insulating their bodies in cold ocean waters.
Humans have five toes on each foot to help them maintain balance.
Many birds migrate south for the winter in search of food.
Answers
The adaptations can be classified as follows structural adaptations: Monkeys' prehensile tail, whales' blubber, and humans' five toes.
Monkeys have a prehensile tail that allows them to grab and hold onto tree branches.
Adaptation: Structural
Explanation: The prehensile tail is a physical feature of monkeys that enables them to manipulate objects and grasp onto branches, aiding in their ability to move through trees.
Moose make mating calls to locate potential mates.
Adaptation: Behavioral
Explanation: Mating calls are a behavioral adaptation employed by moose to attract and communicate with potential mates, increasing their chances of successful reproduction.
Whales are covered in a thick layer of blubber, insulating their bodies in cold ocean waters.
Adaptation: Structural
Explanation: The thick layer of blubber acts as insulation for whales, providing them with protection against the cold temperatures of the ocean environment.
Humans have five toes on each foot to help them maintain balance.
Adaptation: Structural
Explanation: The presence of five toes on each foot in humans provides structural support and stability, aiding in maintaining balance while walking or standing.
Many birds migrate south for the winter in search of food.
Adaptation: Behavioral
Explanation: Migration is a behavioral adaptation exhibited by many bird species as they move from one region to another, typically during seasonal changes, to find better food sources and suitable habitats.
Behavioral adaptations: Moose's mating calls and birds' migration.
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Which sentence describes the impact of the great oxidation event?
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The correct statement is "It caused many organisms to die off" because oxygen was toxic to them.
Option (b) is correct.
The Great Oxidation Event refers to the period of time approximately 2.4 billion years ago when oxygen began to accumulate in the Earth's atmosphere due to the evolution of photosynthetic organisms like cyanobacteria.
This event had a significant impact on the evolution of life on Earth, as the presence of oxygen allowed for the evolution of aerobic respiration, which is much more efficient than anaerobic respiration. However, the sudden increase in oxygen also caused many anaerobic organisms to die off because they were unable to tolerate the presence of oxygen,
Therefore, the correct answer is option B
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Jessica Mitford's, "The American Way of Death," published in
1963, played a critical role in changes in the funeral industry.
O True
O False
Is it true?
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Answer:
true
Explanation:
Which of the following statements about homologous chromosomes is true?0000They are matching chromosomes.They have the same genes located at the same location.One of each pair comes from each parent.All of these choices are correct.
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The answer would be All of the choices are correct.
Homologous chromosomes are known to share the same structural features, such as size, banding patterns, and centromere positions. They also have the same genes located at the same loci positions. Also, one of each pair comes from each parent.
What does an autotroph do?
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Answer: An autotroph is an organism that can produce its own food(using light), water, and carbon dioxide
What is the origin of the term cell in biology?
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Answer:
The Origins Of The Word 'Cell' In the 1660s, Robert Hooke looked through a primitive microscope at a thinly cut piece of cork. He saw a series of walled boxes that reminded him of the tiny rooms, or cellula, occupied by monks. Medical historian Dr. Howard Markel discusses Hooke's coining of the word "cell."
Homologous recombination can be used in the lab to replace a gene of interest with a selection marker. To confirm that the selection marker is integrated into the correct place in the genome, sometimes a negative selection is used in addition to the standard positive selection marker. Which of the following would act as a negative selection marker?
a. Transformation of a different gene, which does not act as a selection marker, to replace the gene of interest.â
b. A second marker in the knock out cassette, that if inserted into the genome results in cell death when plated on selective media.
c. Transforming the cells with two different knock out cassettes, each containing the same selection marker3. â
Answers
Answer:
b. A second marker in the knock-out cassette, that if inserted into the genome results in cell death when plated on selective media.
Explanation:
General recombination, also known as homologous recombination, refers to the naturally occurring process of exchange of genetic material between pairs of homologous DNA sequences. This process (homologous recombination) can be exploited by genetic engineering to insert DNA segments of interest at target genes. Moreover, a cassette is a mobile DNA segment containing almost a gene and a recombination site, which is integrated into the locus/loci of interest by homologous recombination. A cassette may contain a DNA segment called 'negative marker' which prevents growth under particular conditions, while a positive marker permits growth under certain conditions. In consequence, a second marker consisting of a drug cassette may be used as a negative marker in order to evidence its insertion by inducing cell death when they are plated in selective conditions.
PLEASE HELP ME PLEASEE!
Answers
LABEL THE DIAGRAM OF THE LEAF
Answers
Refer to the diagram
Both types of myocardial cells related to maintaining heart rhythm are found in all four chambers of the heart.
True
False
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The myocardial cells related to maintaining heart rhythm are found in all four chambers of the heart. The statement is true.
What is the size of a human heart ?The size of a human heart is a size of a fist.
The myocardial contractile cells are present in total of (99 percent) in the atria and ventricles. Contractile cells have the task to conduct impulses and are involved for contractions that pump blood through the body.
The myocardial conducting cells (1 percent of the cells) form the conduction system of the heart.Myocardial cells are arranged at the intercalated regions in parallel orientation in bundles form.
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Cystic fibrosis is inherited with the autosomal recessive allele c. Individuals with the autosomal dominant allele C do not have the disease. Jessica does not have cystic fibrosis but she has a brother with the disease. Her husband Jerry also does not have cystic fibrosis but has a sister with the disease. a. What is the probability that Jessica carries the c allele
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Complete question:
Cystic fibrosis is inherited with the autosomal recessive allele c. Individuals with the autosomal dominant allele C do not have the disease. Jessica does not have cystic fibrosis but she has a brother with the disease. Her husband Jerry also does not have cystic fibrosis but has a sister with the disease.
A- What is the probability that Jessica carries the c allele?
B- What is the probability that Jerry carries the c allele?
C- What is the probability that Jessica and Jerry could have a child with cystic fibrosis?
Answer:
A) The probability that Jessica carries the c allele equals 2/3.
B) The probability that Jerry carries the c allele equals 2/3.
C) The probability that Jessica and Jerry could have an affected child is 1/9
Explanation:
Due to technical problems, you will find the complete question, answer, and explanation in the attached files.
attributes of groups that have been retained from a common ancestor are referred to as what
Answers
Answer:
Ancestral
Explanation:
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![zPhe(Gly(Arg)(Phethat isThe structure labeled W represents the double stranded (Select ]found in the](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/WfA9kzsz7RfnndHNebGcrewgWCQ6sUIH.jpeg)
Answers
1) DNA helix
2) nucleus
3) transcription
4) nucleus
5) translation
6) cytoplasm
7) amino acids
8) central dogma of molecular biology
What is a common role of a coenzyme in a reaction as stated in class Group of answer choices To lower the activation energy of a reaction further The donation of atoms to a reaction To alter the enzymes shape To assist the substrate by binding to the enzyme, enabling substrate to active site engagement
Answers
Answer:
To assist the substrate by binding to the enzyme, enabling substrate to active site engagement
Explanation:
A coenzyme is a molecule that functions to aid the enzyme in catalyzing a reaction. The coenzyme does this by binding to the active site of the enzyme, then allowing substrate to bind to the enzyme for reaction to occur.
In other words, the coenzyme assists the substrate by binding to the enzyme, enabling substrate to active site engagement.
Which base does Cytosine pair with?
A. Adenine
B. Guanine
C. Uracil
D. Thymine
Answers
Cytosine, a nitrogenous base found in DNA and RNA, pairs with guanine. The correct answer is option B.
This pairing is based on the complementary base pairing rule in which cytosine forms three hydrogen bonds with guanine. The other base pairs in DNA are adenine with thymine, and in RNA, adenine pairs with uracil. The complementary base pairing is crucial for DNA replication and transcription processes. Cytosine and guanine, along with adenine and thymine/uracil, form the base pairs that make up the rungs of the DNA double helix structure.Understanding base pairing is fundamental to understanding the structure and function of nucleic acids. Therefore, the correct answer is option B.For more questions on DNA
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Cytosine pairs with Guanine.
Explanation:The base Cytosine pairs with the base Guanine in DNA. This base pairing is a key component of the double-stranded DNA structure.
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Legumes host nitrogen fixing bacteria, and
thus are good crops to plant to replenish the
soil. Which is not an example of a legume?
A Clover
C. Corn
B. Soybean
7
D. Peanut
Answers
5. Animals pass information from one individual to another through different forms of communication . This could include visual, chemical, or sound signals. Look at this picture of a male wood grouse engaged in a mating display . What form or forms of communication do you see him using to attract a mate ?
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The form or forms of communication which a male wood grouse uses to attract a mate is through sound signals in this type of scenario.
What is Communication?This is referred to as the act of transferring information from one place, person or group to another and it is done through various means such as sounds, body signals etc.
In the case of a male wood grouse, it makes a honking sound which is produced when it dips his neck up and down in a bobbing motion as he approaches a female and the message is duly passed and then mating occurs so ad to enable reproduction.
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The data below show the favorite pizza toppings for a class.
Topping
Percentage
Cheese 30%
Pepperoni 20%
Onion
15%
Mushroom 20%
Sausage 15%
When making a circle graph out of these data, what angle would you use for
the wedge that represents pepperoni?
OA. 72°
OB. 100°
OC. 36°
OD. 20*
Answers
When making a circle graph out of these data, the angle that one would use for the wedge that represents pepperoni will be A. 72°
How to calculate the angle?Based on the information given in the question, the following can be deduced:
Cheese 30%
Pepperoni 20%
Onion 15%
Mushroom 20%
Sausage 15%
Total = 100%
From the information, we can see that pepperoni is represented as 20%. It should be noted that in a circle, the angle is 360°.
Therefore, making a circle graph out of these data, the angle that one would use for the wedge that represents pepperoni will be:
= 20/100 × 360°
= 1/5 × 360°
= 72°
Therefore, when making a circle graph out of these data, the angle that one would use for the wedge that represents pepperoni will be A. 72
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For children from two to five, chikcare spaces are best organized into centers for play.
True or false ?
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Answer:
True
Explanation:
6. How can radiotherapy be used to treat cancer patients?
Answers
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Answer:
Radiation therapy kills cancer cells or slows their growth by damaging their DNA. Radiation therapy (also called radiotherapy) is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors.Explanation:
I HOPE IT'S HELPIf 23 molecules of glucose are catabolized, how many molecules of ATP are produced (via substrate level phosphorylation) by the TCA cycle? How many FADH2 molecules and NADH molecules are produced by the cycle?
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Answer:
A
If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B
If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C
If Assertion is true statement but Reason is false, then mark (3)
D
If both Assertion and Reason are false statements, then mark (4)
Explanation:Substrate-level phosphorylation is a type of metabolic reaction that results in the formation of Adenosine Triphosphate (ATP) of Guanosine Triphosphat (GTP) by the direct transfer and donation of a phosphoryl (PO3) group to Adenosine Diphosphate (ADP) of Guanosine Diposphate (GDP) from a phosphorylated reactive intermediate.
In glycolysis substrate level phosphorylation occurs in following two reactions
(i) 2molecules of 3-phosphoglyceric acid react with 2 molecules of ADP to from 2 molecules of 3-phosphoglyceric acid and 2 molecules of ATP.
1,3−diphosphoglyceric2 mol eculesacid+2ADP−→−−−−−−−−phosphotransferaseMg2+2−phosphoglyceric2mol eculesacid+2ATP
(ii) 2 mol ecules of phosphoenolpyruvic acid reacts with 2 mol ecules of ADP to from 2 mol ecules of pyruvic acid and 2ATP.
1−phosphoenolpyruvic acid2mol ecules2ADP−→−−−−−−Pyruvic kinaseMg2+Pyruvic acid2mol ecuels+2ATP
the purpose of cell
Answers
Answer:
A cell is the basic unit of life, essential to maintaining the physiology of the larger organism. In animals, certain organelles metabolize food into energy, and then uses the energy for repair, growth and reproduction.
Explanation:
The cell is the basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit of life. Cells are often called the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.
Why can’t penguin fly?
Answers
Answer:
No they cannot fly
Explanation:
Penguins dont have any feather to fly with
Answer:
Well, in a sense they really do fly, only through the water, not through the air. Their wing bones are fused straight, making the wing rigid and powerful like a flipper. Penguins don't really need to fly because they dive deep, and swim so that they can catch their prey. Their bodies have huge fat supplies, heavy muscles, and densely packed feathers. There’s no way they could fly with such short wings and heavy bodies.
Explanation:
Hope this helps:)...if not then sorry for wasting you time and may God bless you:)
Study the image, which describes how rapid changes in weather conditions occur.
How rapid changes in weather conditions occur. Arrow labeled Direction of frontal movement points right toward Cold front map symbol. Arrow labeled Rising warm air in front of cold front points from cold front to sky. Also labeled are: Development of clouds because of upward movement of warm air, and Advancing cold air behind cold front.
Based on the arrows, what does the image represent?
Air masses are barely moving.
Air masses are colliding with each other.
Jet streams are forming in the upper atmosphere.
Weather conditions are remaining steady and unchanged.
Answers
The image represents air masses colliding with each other, leading to rapid changes in weather conditions.
The image represents the process of rapid changes in weather conditions occurring. The arrows in the image indicate various elements and phenomena related to these changes.
At the top, the final answer is that the image represents "Air masses are colliding with each other."
1. The arrow labeled "Direction of frontal movement" points right toward the "Cold front" map symbol. This indicates the movement of a cold front.
2. The arrow labeled "Rising warm air in front of cold front" points from the cold front upward into the sky. This signifies the upward movement of warm air.
3. The image also shows the development of clouds due to the upward movement of warm air. This indicates the presence of moisture in the atmosphere.
4. Finally, the image depicts advancing cold air behind the cold front, indicated by an arrow. This cold air is moving in the direction of the warm air.
Putting all these elements together, we can conclude that the image represents air masses colliding with each other. The cold front is advancing and pushing against the warm air, leading to the formation of clouds and changes in weather conditions. This collision between air masses often results in rapid changes in weather patterns, such as storms, rain, or temperature fluctuations.
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what are the ways by which organisms disrupt earth's natural balance?
Answers
Answer:
Agriculture
Deforestation
Overpopulation & Consumption
Plastic Production
Carbon Dioxide and Other Greenhouse Gas Emissions
Reef Degradation
Black Carbon Production.
Explanation:
list not less than 8 differences between
Excretion in flowering plant and excretion
humans in a table form.
Answers
Answer:
Four differences between excretion in flowering plants and excretion in human are as follows.
(1) In a plant, oxygen is a by-product of excretion whereas, in animals, urea is produced.
(2) Plants do not have exclusive excretory organs while humans do have them.
(3) Plants tend to shed their parts while excreting while humans do not tend to shed their organs for the process.
(4) Some solid waste products of plants are stored in their dead cells whereas, in humans, all excretion product gets passed out of the body.
Explanation:
I hope this is correct ( Tried my best :D )
Describe four different types of drugs and their impact on sports performance
Evaluate the impact of four different performance-enhancing drugs on performance in four different types of sport
Discuss, using relevant examples, why some individuals may resort to using performance-enhancing drugs in sport
Answers
Types of Drugs and their Impact on Sports Performance:
Anabolic steroids: Anabolic steroids are synthetic hormones that mimic the effects of testosterone. They are commonly used by athletes to increase muscle mass, strength, and endurance. However, they can also have negative side effects, including liver damage, heart disease, and hormonal imbalances.
Beta blockers: Beta blockers are used by athletes to control anxiety and reduce the effects of stress on the body. They are often used in sports such as archery and shooting, where steady hands and calm nerves are essential. However, they can also cause side effects such as dizziness, fatigue, and depression.
Human growth hormone (HGH): HGH is a hormone produced naturally by the body that stimulates growth and cell reproduction. It is often used by athletes to increase muscle mass and improve endurance. However, it can also have negative side effects, including joint pain, diabetes, and hypertension.
Erythropoietin (EPO): EPO is a hormone that stimulates the production of red blood cells, which carry oxygen to the muscles. It is often used by endurance athletes to improve their stamina and performance. However, it can also increase the risk of blood clots and strokes.
Impact of Four Different Performance Enhancing Drugs on Performance in Four Different Types of Sport:
Anabolic steroids in bodybuilding: Anabolic steroids are commonly used by bodybuilders to increase muscle mass and strength. They can lead to significant gains in muscle size and strength, but can also cause negative side effects, such as acne and hair loss.
Beta blockers in shooting: Beta blockers are commonly used by competitive shooters to reduce the effects of stress on their performance. They can improve accuracy and reduce tremors, but can also cause negative side effects, such as fatigue and dizziness.
Human growth hormone in endurance running: HGH is often used by endurance runners to improve their endurance and speed. It can lead to significant gains in muscle mass and improved performance, but can also cause negative side effects, such as joint pain and diabetes.
Erythropoietin in cycling: EPO is commonly used by cyclists to improve their endurance and stamina. It can lead to significant gains in performance, but can also increase the risk of blood clots and strokes.
Why Some Individuals May Resort to Using Performance Enhancing Drugs in Sport:
To gain a competitive advantage: Athletes may use performance enhancing drugs to improve their performance and gain a competitive advantage over others.
To achieve success and fame: Athletes may use performance enhancing drugs to achieve success and fame in their sport.
Pressure to perform: Athletes may feel pressure to perform at their best, and may resort to performance enhancing drugs to achieve this.
Financial gain: Athletes may use performance enhancing drugs to improve their performance in order to gain financial rewards or sponsorship.
Examples of athletes who have resorted to using performance enhancing drugs include Lance Armstrong, who used EPO and other drugs in cycling, and Barry Bonds, who used steroids in baseball.
what does tiktaalik mean?
Answers
Answer:
Tiktaalik is a monospecific genus of extinct sarcopterygian from the Late Devonian Period, about 375 Mya, having many features akin to those of tetrapods.
Explanation: