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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what is proteins basic formula? like with the numbers and stuff
Which of the following affects the rate of the chemical reaction caused by an enzyme?
A. temperature
B. pH
C. concentration of ions
D. All of these choices are correct.
Answer:
A.Explanation:
HOPE IT HELPS YOU TO YOUR QUESTIONIn the process of in vitro fertilization, a sterile culture
dish is substituted for what part of the human
reproductive tract?
A) ovary
B) oviduct
C) testis
D) follicle
Answer:
b the oviduct
Explanation:
because eggs stay there until they are fertilized by the sperm
What events do solar flares and sunspots cause?
Answer:
When sunspots interact with each other they cause explosions of energy. Solar flares are large eruptions of energy coming off the Sun containing several different forms of energy: heat, magnetic energy, and ionizing radiation. The ionizing radiation released during solar flares includes x-rays and gamma rays.
Answer:
explosions of energy
Explanation:
When sunspots interact with each other they cause explosions of energy. Solar flares are large eruptions of energy coming off the Sun containing several different forms of energy: heat, magnetic energy, and ionizing radiation. The ionizing radiation released during solar flares includes x-rays and gamma rays.
colorless, odorless, tasteless, and transparent
All of these are what kind of properties of water?
Chemical or physical?
Answer:
Physical!
Explanation:
Theres your answer, Physical
Answer:
I believe these are the physical properties of water
Explanation:
Which of the following organisms are prokaryotes?
a
plants
b
animals
c
bacteria
d
fungi
cells that can differentiate into any cell type in an organism are referred to as ______ cells.
Cells that can differentiate into any cell type in an organism are referred to as pluripotent cells.
What is Pluripotent stem cells?
Pluripotent stem cells are cells that have the ability to self-renew by splitting and growing into the three immediate germ cell layers of the earlier embryo.
Hence into all cells of the grown-up body, but not extra-embryonic tissues such as the placenta.
Thus, pluripotent cells are Cells that can differentiate into any cell type in an organism.
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which of the following is not an abiotic factor in the prairie ecosystem a water b sunlight c grass d soil
Answer:
Grass
Explanation:
Biotic means living. There are some obvious abiotic factors here. The only gray area is what "soil" encompasses
grass-Biotic means living, all of the other choices are not living, and would therefore be abiotic factors
This is because it is a living thing (performs photosynthesis and cellular respiration).
Biotic means living, all of the other choices are not living, and would therefore be abiotic factors
Which of the following statements is not a characteristic of the prokaryotes.
Prokaryotes don't have a nucleus.
Prokaryotes have a cell wall.
All of the chemical processes take place in membrane bound organelles in the cytoplasm.
Answer:
All the chemical processes take place in membrane bound organelles in the cytoplasm.
Explanation:
Use the process of elimination:
One of the main things that make a prokaryote is not having a nucleus, so that can be eliminated.
Looking at the structure of bacteria, they can have a cell wall, so this is eliminated.
Therefore, “all the chemical processes take place in membrane bound organelles in the cytoplasm” is incorrect.
Also, prokaryotes DO NOT have membrane bound organelles like mitochondria, chloroplasts, or a nucleus, so this statement would also be incorrect because of this.
How many chromosomes does a average corvid have?
Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
Explanation:
by the way what is corvid
How does breathing take place in primitive animals ?
Through Plasma Membrane
at which point does chromosome replication begin? explain your answer
Answer:
Before a cell can divide, it must accurately replicate all of its chromosomes, including the DNA and its associated histone and non-histone proteins. This process begins at numerous origins of replication during the S phase of the cell cycle in each of a cell’s chromosomes simultaneously.
Explanation:
PLZ ANSWER IN OWN WORDS Why do the bone structures around your head and chest create a convex, enclosed area, unlike the bones in your arms and legs?
Answer:
Bones have different shapes depending on their structure. In the case of the head and the chest, these flat bones protect organs such as the brain and the heart. On the other hand, long bones support the body's movement.
1. When “cleaning” a cadaver, what is removed to better see defined muscles?
When cleaning a cadaver, a professional will remove the fascia in order to better see defined muscles.
The fascia is a thin layer of connective tissue that wraps muscles. It is membraneous and extends throughout the entire body. Among the many functions of the fascia are:
Protectionisolation CompartmentalizationOf its functions, the last it's perhaps the most relevant to this question. It divided the muscles into groups. This is one of the main reasons that in order to see and properly study the muscles of a cadaver, the professional must remove the fascia.
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Answer:
deep fascia
Explanation:
This center part is not present in everyone's hair or may be broken into segments.
a
Medulla
b
Cortex
c
Cuticle
d
Keratin
Answer:
C. Cuticle
Explanation:
Cuticle is the correct answer for this question
1. The cells in a multicellular organism have specific jobs. This is called cell _____.
1. The cells in a multicellular organism have specific jobs. This is called cell organelle.
In a multicellular organism, the cells have specific jobs. This is called cell Division of Labor.
Division of Labor:
Different body functions are done by different type of cell.
Multicellular organism required different body function to live such as digestion and movement. Movement is accomplished by muscle cells.In a multicellular organism, the cells have specific jobs. This is called cell Division of Labor.
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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:
hmmm all of u stay safe
4301154259
Pas 1234
Ở một loài thực vật: A- thân cao trội hoàn toàn so với a - thân thấp; B - quả đỏ trội hoàn toàn so với b - quả trắng.
hãy viết sơ đồ lai xác định tỉ lệ kiểu gen, kiểu hình ở các phép lai sau:
P: AaBb x aabb
Mọi người giúp em với
Answer:
Có 4 kiểu tổ hợp giao tử có thể có của bố mẹ AaBb.
Một nửa số giao tử có alen trội A và alen trội B; một nửa số giao tử còn lại mang alen lặn a và a lặn b.
Cả bố và mẹ đều tạo ra 25% mỗi loại AB, Ab, aB và ab.
Explanation:
The Allegheny mountain region of Virginia was formed between 250 and 280 million years ago. What event most
Likely caused the formation of the Allegheny Mountains?
-))
A)
The collision of two continental plates causing uplift
B)
The deposition of sedimentary rock over the Allegheny region
C)
Continental drift separating two plates to move apart slowly
D)
Geologic uplift of magma forming igneous rock that converted to
mountainous regions
Answer:
A the collision of two continental plates causing uplift or D the uplift of magma forming igneous rock that converted to mountainous regions
Explanation:
Answer:
A
Explanation:
The collision of two continetial plates causing uplift.
please help me with this :((
Answer:
periodic table of elements luv
Explanation:
Answer:
Periodic table of elements
Explanation:
The movement of water across a membrane moving with the concentration gradient is called
A. facilitated diffusion
B. osmosis
C. active transport
D. None of the above
Answer: B
Explanation: Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes.
The mediastinum does NOT contain which of the following?
Answer:
lungs
Explanation:
3. Cellular respiration produces which of the following gases?
What is bicarbonate?
Answer:
an ION
Explanation:
Answer:
An ion
Explanation:
Formula for bicarbonate is HCO3- thus it is an anion/ negative ion.
What is Photosynthesis?
Answer:
the process where plants use sunlight to synthesize foods from carbon dioxide and water to get their energy.
10. What 5 traits do the bird and its closest relative share?
Answer:
EGGS WITH SHELL
AMNIOTIC EGG
FOUR LIMBS
BONY SKELETON
VERTEBRAE
Explanation:
The five traits that the birds and their close relatives share are given below:
Amniotic eggVertebraeLimb development (four)Bony skeleton and feather arrangements.Egg with envelope (shell). What do you mean by traits?Traits may be defined as a state of a character, which is a distinct variation of a phenotypic characteristic of an organism.
Every organism shows some common as well as distinct traits as compared to its close relatives. This represents the evolutionary analysis of organisms in a phylogenetic tree.
Therefore, above are the five traits that the birds and their close relatives share.
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What is the name of the first and second tubule in the nephron?
Answer:
proximal tubule
Explanation:
Pct and dct
proximal convoluted tubule(Pct)
distal convoluted tubule (DCT)
In bakery when _______ is added to the dough for preparing bread, the dough rises f
Answer:
it is Yeast, yeast makes it rise
what processes do all cells need to do to stay alive?
Of the following, what is the most important for ATP production?
A) amount of sunlight
B) carbon dioxide
C) concentration water concentration
D) glucose concentration
E) oxygen concentration
Answer:
B. glucose concentration.
Explanation:
ln general, the main energy source for cellular metabolism is glucose.