An amino acid is so named because its central carbon is linked to both an amino group and a __________. hints
An amino acid's central α-carbon is bonded to an amino group, a carboxyl group, a hydrogen atom, and a unique R group or side chain. This R group is what differentiates one amino acid from another and determines their individual characteristics.
Explanation:An amino acid is so named because its central carbon is linked to both an amino group (-NH₂) and a carboxyl group (-COOH). The central carbon, also known as the alpha (α) carbon, is bonded to four different groups making the structure of an amino acid very specific. In addition to the amino and carboxyl groups, the α-carbon is bonded to a hydrogen atom and an R group or side chain, which is unique for each amino acid and determines its properties.
Amino acids are the building blocks, or monomers, that make up proteins. The R group varies among amino acids, changing the chemical properties and giving each amino acid its identity. This is the key to the diverse range of proteins that can be built from these molecular building blocks. Understanding the structure of amino acids is crucial for grasping how proteins are formed and function.
Which technique seems to predict abdominal visceral fat as well as the dxa technique?
In order to survive bacteria need moisture oxygen and what
Covalent bonds between the sugar of one nucleotide and the _____ of the next nucleotide bond nucleotides together in a dna strand.
a. helix
b. sugar
c. phosphate
d. base
The right answer is phosphate.
DNA has a double helix structure (discovered in 1953 by James Dewey Watson, Francis Crick et al.).
DNA is a polymer of deoxyribonucleic bases, more commonly called nucleotides. Each nucleotide consists of a phosphate group (or phosphoric acid) bonded to a sugar, deoxyribose, itself linked to a nitrogenous base. These bases are four in number: adenine (denoted A), thymine (denoted T), cytosine (denoted C) and guanine (denoted G). The backbone of the DNA is formed by the sugar-phosphate repetition.
The reason that the process called ___________ is so exact is to ensure that each daughter cell has an exact copy of the parental dna. this process occurs in eukaryotes to repair tissues and produce new cells.
Again, frederick compares the treatment of slaves to the treatment of horses. how?
Frederick Douglass, in his writings and speeches, often drew parallels between the treatment of slaves and the treatment of horses to highlight the injustice and inhumanity of slavery.
He did this by pointing out that both slaves and horses were considered property and were subject to the whims of their owners. Here are some ways in which Douglass might have made this comparison:
1. Ownership and Value: Douglass noted that both slaves and horses were bought and sold as property. Their value was determined by their physical abilities and the needs of the market, rather than being recognized as individuals with their own rights and feelings.
2. Lack of Autonomy: Neither slaves nor horses had control over their own lives. They were both subject to the will of their masters, who decided where they would live, what work they would do, and how they would be treated.
3. Physical Treatment: Douglass observed that the physical well-being of both slaves and horses was of concern only insofar as it affected their ability to work. Both were subject to physical discipline and could be punished or rewarded based on their performance.
4. Care and Maintenance: The care given to slaves and horses was often similar, as both were essential to the economic productivity of the plantation. However, this care was not given out of compassion but out of a desire to maintain valuable property.
5. Branding and Identification: Just as horses might be branded or marked to indicate ownership, slaves were often subjected to similar practices, such as being given the last name of their owner or being branded in some cases.
6. Breeding: Douglass also abhorrently pointed out that both slaves and horses were sometimes bred for specific traits, a practice that completely disregarded their humanity and reduced them to mere commodities.
7. Emotional and Psychological Impact: Douglass emphasized the emotional toll of being treated as property, noting that both slaves and horses could suffer psychologically from harsh treatment, lack of freedom, and the constant threat of separation from their families or companions.
By drawing these comparisons, Douglass used the familiar and generally accepted treatment of animals to cast a light on the immorality of treating human beings in a similar manner. He effectively used this rhetorical strategy to appeal to the moral sensibilities of his audience, many of whom might have been more accustomed to thinking about the welfare of animals than the rights of slaves.
Soil formation is most influenced by _____.
A.climate
B.plants
C.wind
D.animals
Which of the following correctly compares the structures of plant and animal cells?
A) Both plant and animal cells have a large central vacuole where enzymes, nutrients, and waste are stored.
B) Both plant and animal cells have ribosomes that synthesize proteins for the cell.
C) Both plant and animal cells have a nucleus where cellular respiration takes place.
D) Both plant and animal cells have cell walls that transport substances into and out of the cell.
Both plant and animal cells have ribosomes that synthesize proteins for the cell. Therefore, option B is correct.
What is ribosome?The process of making proteins in a cell takes place at an intercellular structure called a ribosome, which is formed of both RNA and protein. The messenger RNA (mRNA) sequence is read by the ribosome, which then converts the genetic code into a specific string of amino acids that develop into extended chains and fold to create proteins.
The nucleolus is a spherical component of the cell's nucleus whose main job is to assemble and generate ribosomes. Additionally, ribosomal RNA genes are translated into the nucleolus.
plant and animal cells have ribosomes that synthesize proteins for the cell. Therefore, option B is correct.
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The minimum amount of energy required to start a chemical reaction is the _____ energy.
Answer:
Activation Energy
Explanation:
Activation energy is the amount of energy required to transform the substrate to a high energy state. Once the substrate is transformed into the high energy state, further changes convert it into the product.
Hence, activation energy is the energy required to start a chemical reaction. In the absence of enough amount of energy available in the system, the chemical reaction can not start.
What is DNA made of?
DNA is made up of sugars, phospate groups, and nitrogenous bases and its shape is a double helix. The complementary structure the two strands of DNA allow each strand to serve as a template during replication.
Certain white blood cells engulf microorganisms to digest them, as a means of protecting the body from invaders. This process is described as
diffusion.
pinocytosis.
receptor mediated exocytosis.
phagocytosis.
Answer: phagocytosis
Explanation:
The phagocytosis is a process by which the cells utilizes their plasma membrane to engulf the large particles. The phagocytosis is the part of the immune system of the organism.
The phagocytosis is shown by the white blood cells of the body that encounter the invaders in the body like bacteria, virus, and other foreign particles to engulf and destroy them.
Phagocytosis is the process where white blood cells engulf microorganisms to digest them and protect the body from invaders.
Explanation:The process described in the question where certain white blood cells engulf microorganisms to digest them as a means of protecting the body from invaders is called phagocytosis. Phagocytosis is a type of endocytosis where solid particles are engulfed by the cell membrane and form a vesicle called a phagosome. Once inside the cell, the phagosome fuses with lysosomes to form a phagolysosome, where the microorganisms are digested by enzymes.
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Which anticodon pairs with the codon GAU?
A) CUA
B) GAU
C) CTA
D) GAT
Answer:
The correct answer would be A) CUA.
It can be explained with the help of base-pair complementarity rule. It states that adenine always base-pairs with thymine and guanine always base-pairs with cytosine.
In addition, in RNA, thymine is replaced with uracil and thus adenine base-pairs with uracil.
Anti-codon site of tRNA and codon site of mRNA are also complementary in nature.
Thus, in codon GAU, G would base-pair with C, A would base-pair with U, and U would base pair with A.
Hence, the correct anti-codon would be CUA.
A scientist observes two cells. cell 1 and cell 2 both contain dna (genetic material) and ribosomes. however, cell 1 contains a nucleus and other membrane-bound organelles, which cell 2 does not.
What is the role of dna polymerase during dna synthesis?
The role of dna polymerase during dna synthesis is that the dna polymerase synthesize the dna molecules during dna synthesis in which they contribute to the formation of dna as it is the way of building the blocks of Dna.
an element has an atomic mass number of 16 and an atomic number of 7. the element has __ protons and __ neutrons
Answer:
7 protons and 9 neutrons
Explanation:
As we know,
Atomic number of an element is the total number of proton in its atom. Thus,
Number of proton [tex]= 7[/tex]
Mass number is equal to the sum of number of proton and number of neutron
Mass number [tex]= \\[/tex] Number of Proton [tex]+ \\[/tex] number of neutron
Putting the available values in above relation, we get -
[tex]16 = 7 +[/tex]Neutron
Neutron [tex]= 16 -7\\[/tex]
[tex]= 9\\[/tex]
Hence there are 7 protons and 9 neutrons
The most common type of electronic evidence is
All the different plant populations make up the plant ___________ in this swamp. The plants are part of the bigger __________, that contains many biotic and abiotic factors.
A) community:biome
B) community:ecosystem
C) ecosystem:biosphere
D) population:community
All the different plant populations make up the plant community in this swamp. Plants are part of the bigger ecosystem, that contains many biotic and abiotic factors. Thus, option B is correct.
What are community and ecosystem?The community has been part of the biosphere that is defined by the population of various species inhabiting together at a place. The community only consists of biotic factors like living organisms of different species.
Ecosystems, on the other hand, are part of the biosphere that consists of the geographic area including animals and plants of various populations along with the food, water, air, trees, energy cycles, and other non-living factors. They are composed of biotic and abiotic factors.
Therefore, option B. community and ecosystem are correct blanks.
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If the amount of carbon dioxide available to the plant approaches zero, what will happen to the plant's rate of photosynthesis?
Answer:it will drecrease
Explanation:
Carlie engages in strict dieting and excessive exercise accompanied by binge eating, often followed by purging. carlie suffers from
Nobody is aware of a surefire strategy to stop bulimia nervosa. Following some lifestyle recommendations may lower a person's risk of getting the illness.
What are the common characteristics of bulimia nervosa?An eating disorder is bulimia.Next comes self-induced vomiting, laxative abuse, and other forms of purging. Usually influencing girls, bulimia develops during the adolescent years.
But there are so many variables that could affect how the disorder develops, including genetics, that it is challenging to determine what can stop it.
The following physical effects of bulimia can develop over time: stomach injury as a result of overeating.
Therefore, Unbalanced electrolytes (having levels of sodium, potassium, or other minerals that are too high or too low, which can lead to heart attack or heart failure) vomiting can cause ulcers and other throat-related injuries.
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Describe a good action that might have unintended bad effects
Erection is controlled by the _____________ nervous system and ejaculation is controlled by the ____________________ nervous system.
How do organisms use different types of carbon compounds
The first organic compound is Carbohydrates. Most organisms use is as a primary fuel or their main energy source. They make up cell structures, and they're also used as stored energy in plants. Second is Lipids. If we have any other energy left over in our bodies, we typically will store that as lipids, which a lot of people think of as fats. It also makes up the cell membrane, and coats the leaves of plants to make them waterproof and also protect them from the elements. Third type are proteins. One use of proteins are chemical messengers or hormones. Proteins are useful for receptors and transport channels in order to help things move in and out of the cell. They also help to control and regulate chemical reactions. Another use is for cell structures, like your hair. the last one is for immunity. The fourth and last is Nucleic Acids. There are two main uses in organisms for nucleic acids. The first one is for protein synthesis. The other use is for our hereditary information or how we pass our traits to our offspring.
Which term applies to the fact that the protozoan that causes malaria is very harmful and often kills its host?
A.
commensalism
B.
parasitism
C.
mutualism
D.
symbolism
The correct term is parasitism. That is option B.
Malaria is a type of disease that is usually caused by the bite of a female anopheles mosquito.
The insect transmits protozoan called plasmodium, which completes its cycle in the living human host with the display of the following symptoms:
Fever, headaches,anemiaSince the protozoan that causes malaria is very harmful and often kills its host, it has a parasitic feeding relationship with the host.
Parasitism is a mode of nutrition where an organism lives on or in another organism known as host, causing harm or death to the host.
Therefore the correct term is parasitism.
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Answer:
Its B Paraitisim
Explanation: Glad to help :)
What portion of the nail plate is not visible on the body surface when using a hand magnifier?
1) The nail root is not visible on the body surface when using a hand magnifier. The visible parts include the nail body and free edge.
The portion of the nail plate that is not visible on the body surface when using a hand magnifier is the nail root. The nail root is the part of the nail plate that is embedded under the skin at the base of the nail, beneath the cuticle. The visible parts of the nail when using a hand magnifier are the nail body and the free edge.
Nail root: The part of the nail that is below the skin's surface and cannot be seen without specialized inspection techniques.The portion of the nail plate that is visible on the skin's surface is called the nail body. It reaches the free edge from the nail root.The portion of the nail that extends past the fingertip is known as the free edge. As the nail develops, it is visible and may be filed down.With a hand magnifier, you can see every part of the nail plate: This is untrue since you cannot see the nail root with a hand magnification.complete question:
What portion of the nail plate is not visible on the body surface when using a hand magnifier?
Nail rootNail bodyFree edgeAll portions of the nail plate are visible with a hand magnifier.Which of the following terms in Biology is best illustrated by the image below?
Selective Permeability
Fluid Mosaic Model
Independent Assortment
Facilitated Diffusion
The answer is Selective permeability
Deficits in visual spatial skills and fluent language skills are found in which genetic syndrome?
Deficits in visual-spatial skills and fluent language skills are found in Williams syndrome.
Williams syndrome is a rare genetic disorder that leads to intellectual disability and poor visuospatial abilities. Individuals with Williams syndrome often have relatively strong verbal abilities but struggle significantly with tasks that require visual and spatial skills.
Williams syndrome is caused by the deletion of a small number of genes from chromosome 7. The condition affects many parts of the body, leading to mild to moderate intellectual disability, unique personality traits, distinctive facial features, and cardiovascular issues.
Beginning with the flow phase, arrange the biochemical processes in the order in which they occur during the menstrual cycle.
Tiles
FSH and LH stimulate the follicles to develop and the oocyte to produce estrogen.
A breakdown of corpus luteum causes progesterone levels to drop.
A spike in LH causes the follicle to rupture.
The endometrial lining breaks down and low levels of estrogen stimulate the pituitary to release FSH and LH.
Rising estrogen levels suppress FSH production and development of other follicles.
High progesterone levels maintain the endometrial lining of the uterus.
Sequence
The sequence of the menstrual cycle starting with the flow phase is: endometrial lining breakdown, follicle development and estrogen production, suppression of FSH, LH spike and follicle rupture, progesterone maintaining the endometrial lining, and finally, the breakdown of the corpus luteum leading to decreased progesterone levels.
Explanation:To arrange the biochemical processes in the order they occur during the menstrual cycle beginning with the flow phase, follow this sequence:
The endometrial lining breaks down and low levels of estrogen stimulate the pituitary to release FSH and LH.FSH and LH stimulate the follicles to develop and the oocyte to produce estrogen.Rising estrogen levels suppress FSH production and development of other follicles.A spike in LH causes the follicle to rupture.High progesterone levels maintain the endometrial lining of the uterus.A breakdown of corpus luteum causes progesterone levels to drop.This sequence accounts for the fluctuation of hormones and their effects on the ovarian and uterine cycles.
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Frank has diabetes mellitus and his blood ph has dropped. what is the most likely cause of his acidosis? frank has diabetes mellitus and his blood ph has dropped. what is the most likely cause of his acidosis? a build up of urea increased glycolysis excess ammonia production lipoprotein metabolism excess ketone formation
Which transformation requires a complete meltdown of the rock into magma?
A. igneous rock to sedimentary rock
B. sedimentary rock to metamorphic rock
C. metamorphic rock to sedimentary rock
D. sedimentary rock to igneous rock
E. igneous rock to metamorphic rock
Igneous rocks are formed by the cooling of the magma.
Sedimentary rocks are formed by weathering and erosion of igneous rocks and then consolidation of the sediments.
Metamorphic rocks are formed when igneous or sedimentary rocks are subjected to heat and pressure.
The metamorphic rocks melts and forms magma which in turn cools down to form igneous rocks.
Similarly, sedimentary rocks melt down and forms magma which cools down to form igneous rocks.
So, the igneous rock is formed by cooling of magma, which is in turn formed from sedimentary and metamorphic rocks.
Of the given options only one option has the resulting rock as igneous.
Hence the answer is
sedimentary rock to igneous rock
Predict what would happen to muscles if a pesticide that inhibits acetylcholinesterase was present at the motor end plate.
Pesticides that inhibit acetylcholinesterase cause accumulation of acetylcholine, leading to sustained muscle contractions or spasms, and can ultimately result in paralysis and life-threatening conditions.
If a pesticide that inhibits acetylcholinesterase was present at the motor end plate, it would prevent the breakdown of the neurotransmitter acetylcholine (ACh) in the synapse. Acetylcholinesterase is the enzyme responsible for hydrolyzing ACh, which terminates the signal for muscle contraction. When acetylcholinesterase's action is blocked, ACh accumulates in the synapse, leading to prolonged engagement with the ACh receptors on the muscle cell surface. This results in sustained muscle contraction or spasms, and can eventually cause muscle paralysis. An example of a compound that has this effect is Sarin nerve gas, which is a potent acetylcholinesterase inhibitor. In serious cases, the accumulation of ACh can lead to paralysis and potentially be life-threatening due to the inability of the muscles to relax, which could impair vital functions like breathing.