Triggering of the muscle action potential occurs after Ach binds to chemically gated channels in the motor end plate membrane. Acetylcholine (Ach) is a neurotransmitter produced by nerve cells.
An action potential is an electrical signal that travels along the cell membrane as a wave.
This action potential (muscle action potential) drives the contraction of muscle fibers.
When the action potential reaches the neuromuscular junction (i.e., the motor end-plate), acetylcholine (Ach) is released into the synaptic cleft.
Subsequently, Ach can bind and open specific channels localized on the surface of the muscle cells, thereby depolarizing them and triggering muscle contraction.
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the packaging and distribution center of the cell is the
Answer:
golgi apparatus
Explanation:
11. Write the complementary sequence to following DNA strand:
A A T T C G C C G GT ATT A G A C GTT
Answer: T T A A G C G G C CA TAA T C T G CTT
Explanation: The A's always pair with T's. The G's always pair with C's.
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Answer:
1. In the natural carbon cycle, there are two main processes which occur: photosynthesis and metabolism. During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product.
2. When fossil fuels are burned, they release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere, making them the primary contributors to global warming and climate change.
3. it Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.
4. The phosphorous cycle is slower than carbon cycle and nitrogen cycle because phosphorous is found mainly in very small dust particles. It moves very slowly from the deposits on land and in sediments and then it is transferred to the organism and from organism it is moved more slowly to the soil.
LAB Questions for Scientific Method Table 1 Circumference Volume Trial #1 65.4 cm Trial #2 65.3 cm Trial #3 65.5 cm Average
Explanation:
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Pas 1234
the connective tissue covering around a fascicle is the
Answer:
a layer of connective tissue called the perimysium.
Explanation:
would this have a positive or negative effect on the body?
Answer:
?
Explanation:
which tore off scientific statement is defined as a statement of fact that is generally accepted to be true and universal because it has always been observed to be true?
Answer: Law
Explanation:
True or False: The radius is the bone in the forearm that is on the same side as the pinky finger.
Answer:
false. ulna is on pinky side, radius is on thumb side
Explanation:
Answer:
False
Explanation:
2.3 content quiz (Anatomy Plato)
when inactive, the alpha subunit of the g-protein is bound to:
Answer:
the beta-gamma subunit to form an inactive trimeric protein.
Explanation:
When inactive, the alpha subunit of the G-protein is bound to a GDP molecule.
The guanine nucleotide-binding proteins (commonly called G proteins or GTPases) represent an evolutionarily conserved protein family that serves to switch on/off different signaling pathways within the cell.G-proteins are composed of three different subunits: Gα, Gβ, and Gγ subunits.When GDP is bound to Gα, this subunit remains bound to the Gβ subunit in order to form an inactive heterotrimeric protein.When GTP is bound to the G-protein, then Gα dissociates from the other subunits and triggers the activation of the G-protein.In conclusion, when inactive, the alpha subunit of the G-protein is bound to a GDP molecule.
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Atoms combine together in different ways to form larger particles known as What?
Answer:
when atoms combine they form a chemical bond, which is a force of attraction between two atoms. ... in many cases, atoms combine to form larger particles called molecules.
Explanation:
Answer:
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Explanation:
when atoms combine they form a chemical bond, which is a force of attraction between two atoms. ... in many cases, atoms combine to form larger particles called molecules.
QUESTION: List three ways that scientists’ understanding of cells has improved our lives.
ANSWER:
Answer:
By understanding how cells function in healthy and diseased states, cell biologists from the medical, animal and plant sciences will be able to develop new vaccines, medicines and more effective plants with improved properties and, through increased knowledge, a better understanding of the way of life of all living things.
Explanation:
21. Three different processes are occurring in the drawing below. Name each process and describe it.
Answer:
Process A is diffusion
- diffusion is the random movement of molecules from the area where there is more of them to an area where there is a few of them without the input of energy.
Process B is facilitated diffusion
- facilitated diffusion is the transport of substances across a cell membrane from an area of higher concentration to a lower concentration with the help of Transport protein
Process C is active transport
- A ctive transport is when an input of energy is required to move materials through a cell membrane .
What are 3 characteristics of a small shallow burn that indicate you should be seen by a doctor?
Answer:
The size of the burn. The cause (Thermal, Electrical, Chemical, Radiation, or Friction.) The part of the body where the burn occurred. The age and health of the burn victim
Explanation:
your welcome
This question is about the nervous system.
Describe the function of receptors in the skin.
Answer:
The skin possesses many sensory receptors in the epidermis, dermis, and hypodermis, which allows for discrimination of touch such as pressure differences (light vs. deep). Other qualities of the external world assessed by skin sensory receptors includes temperature, pain, and itch.
Explanation:
Answer:
What is the function of the receptors in the skin?
The skin possesses many sensory receptors in the epidermis, dermis, and hypodermis, which allows for discrimination of touch such as pressure differences (light vs. deep). Other qualities of the external world assessed by skin sensory receptors includes temperature, pain, and itch.
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Explanation:
When Mendel conducted his pea plant genetic experiments, he found that the first generation (F1) of offspring were all true purple plants, but the second generation (F2) contained some white flowers. How did this refute another theory of inheritance based on the idea that traits in offspring were an equal mix of the traits of their parents?
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2. Write a micro-theme(short paragraph 100-300 words) using and explaining the following terms.
a. "Survival of the fittest"
b. Adaptation
c. Evolution
Answer:
The process through which creatures evolve is known as evolution. Mutations cause genetic variety throughout populations, and the ecosystem works with this diversity to select people who are most suited to their surroundings. Eventually, a species can develop into a plethora of others; as a theory suggests that sapiens started as monkeys but evolved into the humanoid beings that we are today. In biology, adaptation is the procedure where a species fits to its habitat; it is the outcome of natural selection acting on hereditary diversity over numerous generations. Survival the fittest is a saying that suggests the fittest survive, not the weak. This is commonly seen in everyday life, whether with humans, animals, plants, it holds the same meaning. An example would be that a person in better physical and mental health would go farther and live longer than one with weak physical and mental health.
The concept of "survival of the fittest" is a key tenet of evolution, which refers to the idea that individuals with traits that provide them with a competitive advantage in their environment are more likely to survive and reproduce than those without these traits. This process of natural selection leads to the gradual accumulation of beneficial traits in a population, resulting in adaptation and evolution over time.
What is adaptation?Adaptation refers to the process by which organisms develop characteristics that allow them to better survive and reproduce in their environment, such as camouflage or the ability to digest new types of food.
Evolution refers to the broader process of change over time in a population's genetic makeup and physical characteristics, resulting from the interaction between genetic variation, natural selection, and other factors. Together, these concepts help explain how organisms are able to adapt and change over time, resulting in the diversity of life that we see today.
The study of evolution has important implications for understanding the history and development of life on Earth, as well as for addressing modern challenges such as biodiversity loss and climate change.
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which is not part of the conducting portion of the respiratory system?
Answer:Which is not part of the conducting portion of the respiratory system? The epithelial lining of the oropharynx and the superior larynx (vocal cords) is nonkeratinized stratified squamous. In general, respiratory zone structures are lined with a thicker mucosa than conducting zone structures.
Explanation:
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The part that is not the conducting portion of the respiratory system is the alveoli, which is in option D, as this is not a part of the conducting portion but a part of the respiratory system. So, option d is correct.
The alveoli are small, thin-walled sacs located at the end of the bronchioles in the lungs. They are responsible for gas exchange, where oxygen is taken up from the inhaled air and carbon dioxide is released into the exhaled air. While the alveoli are an essential part of the respiratory system, they are not considered part of the conducting portion. Instead, they are part of the respiratory portion, where gas exchange occurs. So, option d is correct.
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complete question is below
which is not part of the conducting portion of the respiratory system?
A.heart
B.eye
C.skin
D.alveoli
a green plant which makes food using light energy water and carbon dioxide during the process of photosynthesis
Answer:
Explanation:
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.
Answer:
Autotrophs!
Explanation:
Autotrophs are plants that have chlorophyll, which is a green pigment found in plants. These plants do all the things in your question!
a species has 12 chromosomes in a cell. if this cell underwent mitosis, how many chromosomes would be in the daughter cell?
Answer:
the cell would split in two and put 12 chromosomes in each daughter cell
Explanation:
Microorganisms often lead to infection because they-
Hi!
Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.
Explain why the amount of water on Earth remains relatively constant?
Answer:
because science
Explanation:
The Sun provides the energy to power the water cycle. When water changes state in the water cycle, the total number of water particles remains the same. The changes of state include melting, sublimation, evaporation, freezing, condensation, and deposition.
A living thing that is made of one or more cells uses energy, moves, responds to its environment, adjusts, reproduces, has a metabolism, and ingest nutrients is a (an)
Metabolism
growth
organism
respiration
A dichotomous key uses
inferences.
DNA sequences.
subjective descriptions.
observable characteristics.
Answer:
Explanation:,jkh,gf nvcbnhjm,uky7gti6drhfxcgnbhyjmu,iop'9u08[y7pt6of75rijmh
Which of the following best describes a benefit of one type of nonrenewable energy?
Natural gas does not produce greenhouse gases as other energy sources do.
Coal deposits are found on nearly every continent and mining coal poses few risks.
Nuclear power increases water vapor in the atmosphere.
Petroleum is relatively inexpensive compared to other forms of energy.
Answer:
d
Explanation:
Answer:
Petroleum is relatively inexpensive compared to other forms of energy.
Explanation:
Why should we not sleep under peepal tree at night?
This question is partially wrong guys .There is no such danger around peepal tree see the researchs and decide yourself.
some people have written wrong information in this group kindly request you guys to correct wrong information and get new information.
Plants take in carbon dioxide (CO2) and release oxygen (O2) during day time when they undergo the process of photosynthesis and they take in O2 and release CO2 during night as a result of respiration.
There are 3 photosynthesis pathways adapted by plants for carbon fixation namely C3 pathway (Calvin cycle), C4 pathway and CAM pathway (Crassulacean Acid Metabolism). C3 and C4 are common among land plants and among these two, C3 is the most common.
CAM pathway can be seen in desert plants and epiphytes (i.e. plants that live on other plants). Unlike C3 and C4 plants, these plants keep their stomata closed during day and open it during night for fix CO2 in the form of malate and releases O2. They do it so, to prevent loss of water due to sunlight. During the day, they breakdown the malate and use the released CO2 through Kalvin cycle to produce sugars, similar to C3 plants. So, CAM plants releases oxygen during night.
Peepal tree is a hemi-epiphyte in its native habitat i.e. the seeds germinate and grow as an epiphyte on other trees and then when the host-tree dies, they establish themselves in the soil. When they live as an epiphyte, they use CAM pathway to produce carbohydrates and when they live on soil, they switch to C3 type photosynthesis. So, a Peepal tree can also release oxygen during the night depending on whether it is an epiphyte or not.
Other plants that give out oxygen at night are Areca Palm, Neem tree, Snake plant, Aloe Vera, Gerbera and Tulsi.
Answer:
Ghost can come if anyone sleeps under peepal tree
The illustration shows a number of changes occurring. What is a chemical change
Answer:
A PHYSICAL CHANGE is a transformation in which the nature of matter does not change. state changes. State changes are physical changes
Explanation:
Los cambios químicos suponen la desaparición de una sustancia para dar paso a la aparición de una nueva. ... Algunos ejemplos de propiedades químicas de la materia son acidez, poder oxidante, combustibilidad, esterificación, fermentación, hidrólisis, putrefacción, saponificación, etc.
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Vhich molecules store information related to the function of a cell in the form of a coded message!
A
nucleic acids
B
lipids
C
enzymes
D
carbohydrates
Answer: The correct answer is A. nucleic acids.
Explanation: The genetic information is stored in the form of nucleic acids i.e. deoxyribonucleic acids (DNA) or ribonucleic acids (RNA).
Nucleic acids are large macromolecules in cells and viruses. Nucleic acids store and express genetic data. Therefore, option (A) is correct.
What are nucleic acids?The biopolymers and macromolecules known as nucleic acids are fundamental to every known type of living being. Nucleotides, which are the monomers that make up nucleotides, are composed of a 5-carbon sugar, a phosphate group, and a nitrogenous base. They are the building blocks that make up nucleotides. Deoxyribonucleic acid and ribonucleic acid are the two primary subgroups that can be found among nucleic acids.
Nucleic acids, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are responsible for carrying genetic information. This information is read in cells and used to produce RNA and proteins, which are necessary for the functioning of living things.
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autorhythmic cells can generate action potentials spontaneously because they have
Answer:
Unstable membrane potentials
Explanation:
Which statement is true of carriers? Select all that apply.
A) They have one dominant allele.
B) They express the recessive trait.
C) They are heterozygous for a recessive disorder.
D) They can pass a gene for a recessive disorder.
B. They express the recessive trait
The carriers for a disease in a pedigree analysis is a heterozygous. They contain a dominant and a recessive allele. Thus, correct options are A, C and D.
What are genes?A gene is a segment of DNA that contains all the information for the development of organism. A carrier in genetics, is an individual who “carries” and can pass on to its offspring an allele associated with a disease and does not show symptoms of that disease. A carrier is an organism that carries two different alleles of a recessive gene and is thus heterozygous for that the recessive gene.
Dominant genetic disorders are those in which a mutation in just one copy of the gene pair is required for the disorder to develop. However, in recessive genetic disorders both alleles need to be recessive for the gene. This disease symptoms are only observed in case of homozygous condition.
Therefore, the correct options are A, C and D.
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bio
what’s the answer??
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