When a water molecule is added to a polymer, the
from water becomes attached to one subunit and the hydroxyl attaches to another subunit, breaking the covalent bond between two monomers. This process is referred to as hydrolysis.
Answers
Answer:
Hydrogen
Explanation:
Related Questions
Apoptosis is morphologically identified by;
A. Cellular swelling
B. Nuclear condensation
C. Rupture of the cytoplasm
D. Rupture of the nucleus
after answering explain your answer with this format, INTRODUCTION, BODY AND CONCLUSION.
Answers
The morphological identification of apoptosis primarily involves specific changes in cellular structure and organization. Among the given options, nuclear condensation (B) is the most accurate indicator of apoptosis. Let's explore this further:
INTRODUCTION:
Apoptosis is a regulated form of programmed cell death crucial for maintaining tissue homeostasis, eliminating damaged cells, and controlling various physiological processes. Morphological changes in apoptotic cells are distinct and serve as key criteria for identifying apoptosis.
BODY:
Cellular swelling (A): Cellular swelling is not characteristic of apoptosis. Instead, it is more commonly associated with necrosis, a form of cell death caused by cellular injury or trauma. Necrotic cells typically exhibit enlarged and disrupted cell structures.
Nuclear condensation (B): Nuclear condensation is a defining feature of apoptosis. During apoptosis, the chromatin within the nucleus undergoes condensation, resulting in a compact and dense appearance. This can be visualized using various staining techniques, such as hematoxylin and eosin staining or DNA-binding dyes like DAPI. Nuclear condensation is a reliable marker that distinguishes apoptotic cells from healthy or necrotic cells.
Rupture of the cytoplasm (C): Rupture of the cytoplasm is not a typical characteristic of apoptosis. In apoptosis, the cell undergoes controlled disassembly, including fragmentation of the nucleus, without significant disruption of the cytoplasmic membrane. On the other hand, cytoplasmic rupture may occur in necrosis, where the cell membrane integrity is compromised.
Rupture of the nucleus (D): Rupture of the nucleus is not a characteristic of apoptosis. During apoptosis, the nucleus often fragments into smaller, condensed structures, a process known as nuclear fragmentation or karyorrhexis. However, these fragmented nuclei do not rupture or spill their contents into the surrounding cytoplasm.
CONCLUSION:
Among the given options, nuclear condensation (B) is the most accurate morphological identification of apoptosis. This process involves the condensation of chromatin within the nucleus, resulting in a compact and dense appearance. Other features mentioned, such as cellular swelling (A), rupture of the cytoplasm (C), and rupture of the nucleus (D), are not typically observed in apoptotic cells. Understanding the morphological changes associated with apoptosis is crucial for differentiating it from other forms of cell death and studying its role in various biological processes.
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Why do scientists attempt to name and classify things into groups?
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Answer:
For organization
Scientise classify things to ogrnaize and to show the diversity of different groups of things
For example classifying organisms and elements
Hope this helps
Understand biological structures and the different human body systems
Answers
Answer:
The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, the excretory system, the nervous system, the endocrine system, and the reproductive
hope it helps you
as crossbridges form and a skeletal muscle fiber contracts, in which direction are myofilaments moving?
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Answer:
Explanation:
During muscle contraction, the heads of myosin myofilaments quickly bind and release in a ratcheting fashion, pulling themselves along the actin myofilament. At the level of the sliding filament model, expansion and contraction only occurs within the I and H-bands.
example of FAST moving carbon.
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Answer:
The fast carbon cycle is largely the movement of carbon through life forms on Earth, or the biosphere. ... During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel—glucose and other sugars—for building plant structures. This process forms the foundation of the fast (biological) carbon cycle.
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Place the following in order of blood flow back to the heart.
- heart
- capillaries
- veins
- superior and inferior vena cava
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What impact does increased CO2 in the atmosphere have on marine life? Claim, Evidence and reason.
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It will not help them
Explanation:
1 point
Primary succession is ecological succession that begins in a place that
has soil
has little soil
has simple plants
has rock
Answers
Primary succession is ecological succession that begins in a place that has rock.
Primary succession is a fascinating process of ecological succession that occurs in areas devoid of soil or where soil development is minimal. It involves the colonization and establishment of life in barren or highly disturbed environments, such as rocky terrains, volcanic islands, or glacial moraines.
In primary succession, the initial pioneer species often consist of lichens and mosses, which are capable of tolerating harsh conditions and facilitating soil formation.
These simple plants play a crucial role in the early stages of primary succession by breaking down rocks through physical and chemical weathering. As they grow and die, their organic matter accumulates, contributing to the formation of rudimentary soil.
Over time, more complex plants like grasses, ferns, and shrubs begin to colonize the area. These plants further contribute to soil development by adding organic matter, enhancing nutrient cycling, and improving soil structure. Their root systems help bind the soil particles, preventing erosion and creating a more stable environment for other organisms.
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Overconsumption of _____ is often linked to chronic disease. multiple select question. sodium
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Overconsumption of sodium, saturated fat and sugar increase the risk of chronic disease.
What is chronic disease?A sickness or condition that typically lasts three months or longer and has the potential to worsen over time. Elderly people are more prone to developing chronic diseases, which are typically treatable but not curable. Diabetes, arthritis, heart disease, and stroke are the most prevalent chronic diseases.
Many chronic diseases are caused by:A small number of risk behaviors are responsible for many chronic diseases:
smoking tobacco and being among those who are smoking.Nutritional deficiencies, such as diets high in sodium and saturated fats but deficient in fruits and vegetables.a lack of movement.alcoholism in excess.to know more about chronic disease please check the link given below:
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Which of the following would be an example of adaptation through natural selection?
a. Some honey badger populations overlap with king cobra populations. In these overlapping areas, honey badgers that had a venom-resistant mutation are able to catch and eat king cobras as an additional source of food, increasing their resources. This mutation has spread through the population over several generations.
b. Two parents that are both World Weightlifting Champions are about to have a baby. They expect their newborn to be a muscle-bound girl.
c. Gopher snakes and diamond back snakes both have a diamond pattern that makes them look similar. A female gopher snake noticed that the nearby rattler scared off predators with its loud rattle, so the gopher snake started using a similar tactic, by vibrating its tail in the leaves. Any offspring she has will vibrate their tails as well.
d. A pesticide-resistant locust population lives in an agricultural field that is getting too hot. The population moves to a cooler, non-agricultural area. The next generation of offspring will not be pesticide-resistant because they have no need to be.
Answers
Answer:
B
Explanation:
Natural selection is the increase of a trait within a population over generations due to its helpfulness to survival. B is the only answer that describes a trait that aids a creature's increased likelihood of survival. This answer is also that only one that describes how this trait will become more prominent in future generations.
A is the answer.
hope i got it!
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5
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What is the most important reason to control the conditions of an experiment?
O to make the experiment easier to repeat
O to reduce the amount of data that must be recorded
O because this is necessary for graphing the data
because this is necessary for the data to be valid
Answers
Answer: to make the experiment easier to repeat
Explanation:
(Sorry for repeating the word variable so much, lol)
sickle cell disease is a blood cell disorder. It causes an abnormality in the blood cells shape. The cell assumes the shape of a crescent. This also inhibits the cells, ability to carry oxygen leading to painful symptoms, and even death the person inherits the alleles for SED from their parent a person who is heterozygous for the sickle cell allele often shows no symptoms of the disease and is considered a carrier. A person who is homozygous recessive for the sickle cell allele will exhibit signs and symptoms of sickle cell anemia if 9% of the population exhibit signs and symptoms of the disease what percent of the population is a carrier.
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The percentage of the population that is a carrier of sickle cell disease is 91%. This is calculated by subtracting the 9% of the population that exhibit signs and symptoms of the disease from the total population (100%).
What is disease?Disease is an abnormal condition that affects the body of an organism and can cause discomfort, dysfunction or even death. It is often caused by pathogens such as viruses, bacteria, fungi, parasites, or environmental factors such as radiation or chemicals. It can be caused by genetic predisposition or lifestyle choices, such as smoking or poor diet. Symptoms of a disease depend on the type and can range from mild to severe.
This leaves 91% of the population that is a carrier of the disease but does not show any symptoms. This is due to the fact that a person who is heterozygous for the sickle cell allele (has one sickle cell allele and one normal allele) typically does not show any symptoms of the disease.
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What process do scientists think explains the evolution of mitochondria and chloroplasts from bacteria
Answers
Scientists put their conclusions into this by creating th Endosymbiotic theory. The endosymbiotic theory describes how mitochondria and chloroplasts (cell organelles) came to exist in eukaryotic organisms. The endosymbiotic theory explains the evolution of mitochondria and chloroplasts. Before mitochondria and chloroplasts were organelles in a cell, they were free prokaryotic cells that were absorbed by eukaryotic cells.
The mitochondrion was originally a prokaryotic cell that could undergo aerobic respiration. After being absorbed by a eukaryotic cell, it developed a symbiotic relationship with its host cell.
The chloroplast was originally a prokaryotic cell that could undergo photosynthesis (eg. cyanobacteria). Like the mitochondria, the photosynthesizing bacteria became dependent on the host cell after being engulfed.
There is much evidence to support the endosymbiotic theory.
Both prokaryotes and chloroplasts/mitochondria have circular DNABoth have their own ribosomesBoth divide through binary fission (splitting into two)Both have their own cell membranes
The one cell that develops when two gametes fuse during fertilization is the beginning of a new person. This one cell is known as a(n) __________.
Answers
The one cell that develops when two gametes fuse during fertilization is the beginning of a new person. This one cell is known as a(n) Zygote.
#CarryOnLearning\( \mathfrak{WatanabeHaruto}\)
choline is group of answer choices a conditionally essential nutrient. an essential nutrient. a mineral. responsible for muscle contraction and relaxation.
Answers
Choline was officially recognized as an essential nutrient by the Institute of Medicine in 1998. Its role in the body is complex. It is needed for neurotransmitter synthesis (acetylcholine), cell-membrane signaling (phospholipids), lipid transport (lipoproteins), and methyl-group metabolism (homocysteine reduction).
How might an inherited trait, such as height, be influenced by both genetic and environmental factors?
Answers
Answer:
Explanation:
For most individuals, though, height is controlled largely by a combination of genetic variants that each have more modest effects on height, plus a smaller contribution from environmental factors (such as nutrition). More than 700 such gene variants have been discovered and many more are expected to be identified.
Foreign particles are caught in the....
O Reticulum
O Omasum
OSmall Intestine
O Large Intestine
Answers
A segment of DNA has this sequence:
ATA GCA CAT
What is the mRNA sequence transcribed from this segment?
OTAT CGT GTA
O UAU CGU GUA
O TAT GGG GTA
O UAU CGT GTU
Answers
Answer: B: UAU CGU GUA CAU
Explanation:
UAU CGU GUA CAU is the mRNA sequence transcribed from this segment.
What is mRNA?
Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template.
The function of mRNA is to transport protein information from DNA in a cell's nucleus to the cytoplasm, or watery interior, where the machinery responsible for making proteins reads the mRNA sequence and converts each three-base codon into an amino acid that belongs in a protein chain that is expanding.
Therefore, UAU CGU GUA CAU is the mRNA sequence transcribed from this segment.
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Any substance to which the immune system can respond, such as chemicals, bacteria, viruses, or pollen.
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Antigens are the substance to which the immune system can respond, for chemicals, bacteria, viruses, or pollen.
What are antigens?A molecule, chemical structure, foreign particle, pollen grain, or other foreign substance that can bind to a specific antibody or T-cell receptor is referred to as an antigen in the field of immunology.
An agent that induces the production of antibodies was first referred to as an antigen. Antigens can be proteins, peptides (chains of amino acids), polysaccharides (chains of simple sugars), lipids, and nucleic acids.
Therefore, the substance is antigens.
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what is a primary function of transcription factors?
Answers
Answer:
annaaa
Explanation:
ammmaa∉⊃
A student is brainstorming real-life situations that model the process of active transport. Which of these would be effective ways to demonstrate
that process?
Select TWO correct answers.
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2. Watching the absorption of nutrients in the small intestine.
Answer this question and ill mark
Answers
Answer: D. Data demonstrating a relationship between the amount of sun exposure and incidences of skin cancer.
Explanation:
Going through the other answers,
A doesn't seem logical as it only shows the location of DNA in a cell, which has nothing to do with inferencing the sun.
B also doesn't make sense since corelation\(\neq\)causation. Just because someone had sunburns as a child doesn't mean they'll develop skin cancer.
C is also not the answer because many companies advocate that their products protect skin against UV rays, however Ultra-Violet radiation from the sun is hard to defend against.
Therefore, the answer is D since the amount of Sun exposure is usually a direct cause of skin cancer.
14). Clonal selection and differentiation of B cells activated by antigen exposure leads to the production of ________. A) large quantities of the antigen initially recognized B) vast numbers of B cells with random antigen-recognition receptors C) long-lived erythrocytes that can later secrete antibodies for the antigen D) short-lived plasma cells that secrete antibodies for the antigen
Answers
Answer:
The correct answer is D) short-lived plasma cells that secrete antibodies for the antigen
Explanation:
Each B lymphocyte has an antigen receptor (BCR: B cell receptor), a surface immunoglobulin (IgM or IgD), that binds to specific domains of the antigen called antigenic determinants or epitopes. Only B lymphocytes with a high antibody affinity for the antigen, and which are capable of processing and presenting it, will be positively selected. In this contact between the two cells, an exchange of chemical signals takes place that leads to the activation, clonal proliferation and differentiation of B cells into two sister subclones: one of antibody-secreting plasma cells, and the other of memory primed B cells. Therefore, only these last positively selected B lymphocytes will survive, proliferate and differentiate into plasma cells, synthesizing and secreting antibodies of a single isotypic class, with a unique specificity and high affinity, improving the ability to adhere to the antigen and, thus , neutralize and destroy pathogens.
DNA and RNA both use the same types of nucleotides
Answers
Answer:
No
Explanation:
In the nucleotide of DNA and RNA only Phosphate that is similar to both nucleic acid, They have different sugar portion and Nitrogenous base.
DNA nucleotide include
- Phosphate
- deoxyribose sugar
- NB Adenine, Thymine, Guanine and Cytosine
RNA nucleotide include
- Phosphate
- Ribose sugar
- NB Adenine, Uracil, Guanine and Cytosine
Therefore They do not use the same types of nucleotides because DNA has 2 strand that are joined together by weak hygrogen bond and it is long. while RNA has 1 strand and it is a short thus not coiled or helical.
Lisa is investigating a chemical reaction involving carbon compounds.which of these results could not occur cording to scientific laws about chemical reactions matter and energy
Answers
Answer: The mass of carbon in the products is greater than the mass of carbon in the reactants.
Explanation:
In the origin of the cell, why would the formation of a simple lipid bilayer membrane not be sufficient? & what else would have to be apart of such membrane?
Answers
The formation of a simple lipid bilayer membrane would not be sufficient for the origin of the cell because a cell requires more than just a physical barrier to separate itself from the environment. While a lipid bilayer can provide a basic barrier to separate the internal and external environments, it cannot perform essential functions required for cellular life.
For instance, in order for a cell to survive, it needs to have the ability to maintain a stable internal environment, a process known as homeostasis. A lipid bilayer alone cannot regulate the flow of molecules and ions across the membrane to maintain a stable internal environment. Therefore, the membrane would need to have specialized proteins that allow for the selective transport of molecules and ions in and out of the cell.
Additionally, a lipid bilayer alone cannot carry out metabolic reactions required for cellular functions. Enzymes and other proteins are required for cellular metabolism, which would need to be present within or attached to the membrane.
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as a woman holding her breath swims deeper and deeper beneath the water's surface, her density
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As a woman holds her breath and swims deeper into the water, her density increases. The deeper she goes, the more the pressure increases and the denser she becomes.
This is because the air in her lungs is compressed due to the pressure of the water, making her overall body more compact and dense. This increase in density can have an impact on her ability to swim and move through the water. It may require more effort to move her body and limbs due to the increased resistance from the water. Additionally, holding her breath for too long can lead to oxygen deprivation and potentially result in blacking out or drowning. Therefore, it is important to practice safe and controlled breathing techniques when swimming at deeper depths.
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What is the term used to describe the amount of time it takes for newly divided cells to be completely replaced throughout a tissue
Answers
Answer:
turnover or turnover time
Explanation:
In the last 100 years, which of the following have added excess carbon dioxide to the atmosphere?
1) power plants
2) machinery
3) cars
4) ALL OF THE ABOVE
pls answer asap, would be very appreciative:)
Answers
Answer:
d
Explanation:
Below is an image of a family tree (first generation) showing a group of mice. A dark gray mouse and a white mouse had four offspring, some had white fur, while others had dark gray fur. Use the image below to help you answer the following questions. Which of the following descriptions about the parents is most likely true?
A Their gene combinations for the fur color trait are the same.
B Their gene combinations for the fur color trait are different.
C Their gene combinations for the fur color trait depend solely on the environment.
D Their gene combinations for the fur color trait do not affect their offspring.
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Answer:
I believe the answer is B.