Skeletal muscle exhibits alternating light and dark bands called a sarcomere
Skeletal muscle is having sarcomere having myofibrils which appear dark and light in the microscope.
What is skeletal muscle?Only thin filaments containing actin are present in isotropic bands, anisotropic bands are the darker bands (A bands).
Repeating sarcomere sections, which are visible under the microscope as alternating dark and light bands, make up myofibrils.
When a muscle contracts or relaxes, long, fibrous protein filaments called sarcomeres glide past one another. Because of this, skeletal muscle is also known as striated muscle.
Therefore in appearance due to myofibrils composed of the sarcomere look light and dark bands in the skeletal muscle under a microscope.
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The change in t between pH 6 and pH 7 must involve_________ of a proton in the active site. The best candidate is _______. The increase in Km at higher pH must involve a change in the binding site. The group involved is probably the ________ at Ile 16, created by the cleavage that activates chymotrypsin.
N-terminus
gain
His 57
Asp 102
C-terminus
Ser195
loss
losa ser ibmas que me dijiste que
A spacecraft can travel 20km/s how many km can this spacecraft travel in 1 hour?
Answer:
This spacecraft can travel
[tex]72000km[/tex]
The table below shows some of the ingredients in the four different drinks. Which of these drinks would give an athlete the most energy we litre
Answer: 2
Explanation: the numbers add up to make the highest number
3. Which of the following resembles a hypothesis?
Joe witnesses a shooting star and makes a wish.
Shen wonders how shooting stars form in outer space.
Rodney claims that shooting stars burn from entering Earth's atmosphere.
Jane researches how much friction causes combustion.
Answer:
Rodney claims that shooting stars burn from entering Earth's atmosphere.
Answer:
Rodney claims that shooting stars burn from entering earths atmosphere
Explanation:
in a species of mice, short hair is dominant to long hair. if a short-haired individual is crossed with a long-haired individual and both long- and short-haired offspring result, one can conclude that
Answer:
the long haired trait was the dominant trait and the short haired one was the recessive trait
Explanation:
in a species of mice, short hair is dominant to long hair. if a short-haired individual is crossed with a long-haired individual and both long- and short-haired offspring result, one can conclude that the long haired trait was the dominant trait and the short haired one was the recessive trait
need an answer quick!!
bio
will give brainliest to correct answerer
Answer:
yy
Explanation:
If the yellow flower genotype is the dominant trait ( Y ), then the white flower has to not contain 'Y'
Hopefully this helps!
Brainliest please?
Any information about Bird DNA?
trying to find stuff but no one tells me anything...
Answer:
hmm sounds like the FBI is hiding something from you
Explanation:
Answer:
look it uo
Explanation:
with that question you are better off just looking it up
which gas is cycled into the atmosphere at the arrow?
Answer:
oxygen
Explanation:
How can you tell that the rock, Diorite, is intermediate?
Answer: You can tell that this rock has roughly an equal abundance of white and black minerals. If you click to zoom, you will see only one feldspar and no quartz.
to which part of a dna molecule are nucleotides added?
Answer:
Nucleotides are exclusively added to the 3' end of the developing strand when DNA is produced in the 5'-to-3' orientation. The 5'-phosphate group of the new nucleotide attaches to the 3'-OH group of the final nucleotide of the developing strand.
At the 3' end of the deoxyribose sugar, an upcoming nucleotide is added. The existing nucleotide's 3'-OH end and the new nucleotide's 5' phosphate make a phosphodiester bond. In this way, new nucleotides are added.
How does DNA polymerize?
The DNA is made up of nucleotides. Each nucleotide of DNA is made up of a deoxyribose sugar, a phosphate group, and a nitrogenous base. Nitrogenous bases include adenine, guanine, cytosine, and thymine. The sugar of the DNA has a lack of oxygen at the 2' end. A glycosidic bond connects the sugar's 1' end to the nitrogen base.
The 5' end of sugar is attached to the phosphate group. The 3' end of sugar is attached to the 5' phosphate of the new upcoming nucleotide. A phosphodiester bond is formed during the addition of new nucleotides. Two phosphate groups of the new nucleotides are removed. Example: If ATP comes, then it will make AMP and attach to the DNA chain.
Hence, at the 3' -OH end of sugar of the existing nucleotides, a new one is added.
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why do histone genes have a very slow molecular clock?
Answer:
The structure of the histone gene must be conserved for DNA to function properly.
Explanation:
:)
autorhythmic cells can generate action potentials spontaneously because they have
Answer:
Unstable membrane potentials
Explanation:
which of these features is found in a lumbar vertebra?
Answer: All of the choices are correct
Explanation: Just do it I got it correct
Which of the following does not describe a source of greenhouse gases?
Steam of fossil fuels
Burning of fossil fuels
Freezing of permafrost
Emissions from landfills
Answer:
i think its C) Freezing of perma frost
Explanation:
The option that does not describe a source of greenhouse gases is the freezing of glaciers. Thus, the correct option is C.
What are greenhouse gases?Greenhouse gases may be defined as those gases that are present in the earth's atmosphere and trap the heat and radiation from the sun and emitted toward the earth.
Such greenhouse gases are responsible for the greenhouse effect that ultimately leads to global warming.
Steaming and burning of fossil fuels and emissions from landfills extremely liberated the high amount of carbon dioxide in the atmosphere which is one of the most potent greenhouse gas.
Therefore, the option that does not describe a source of greenhouse gases is the freezing of glaciers (hailstone). Thus, the correct option is C.
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what physical feature of dna is affected by the pairing of purines with pyrimidines?
Answer:
Its width.
Explanation:
The size of pyrimidines and purine is different because each group has a different structure (1 or two rings). Therefore, the width of DNA is "constant".
If we would pair two pyrimidines or two purines, the width of DNA would be different in both cases.
Hope this will help :)
I do not understand this. It is about "Membrane Transport".
A block of wood has a mass of 120 g
and a volume of 200 cm3. What is the density of
the wood?
Answer:
0.6 cm3
Explanation:
D=mass/volume
D=120g/200 cm3
D=0.6 cm3
how to read a phylogenetic tree ? ( easy and detailed pls)
Answer:
understanding phylogeny. understanding a phylogeny is a lot like reading a family tree. the root of the tree represents the ancestral lineage and the tips of the branches represent the descendants of that ancestor. as you move from the route to the tips you are moving forward in time
Explanation:
blahblah
where is most of the energy stored within an atp molecule?
Answer:
Adenosine Triphosphate
Explanation:
A scientist looks into a microscope and sees that chromosome pairs are in bipolar
tension. Which mitotic phase is the scientist likely witnessing? (1 point)
O metaphase
O anaphase or telophase
O prophase or metaphase
o anaphase
Answer:
metaphase
Explanation:
I took the test, it's right.
Answer:
metaphase
Explanation:
1.anaphase
2.telophase
3.anaphase
4.mitosis
5.metaphase
hope this helps:)
. What does the term mutation mean in regards to human genetics?
Answer:
A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing raditation, exposure to chemicals called mutagens, or infected by viruses.
Explanation:
A mutation is a change in a DNA sequence.
the contractile organelle of skeletal muscle fibers is
Answer:
The myofibrils are the contractile organelles in the muscle fibers.
Acidic rainwater dissolving rock is an example of
A. oxidation
Bicarbonation
C.hydrolysis
D. salt wedging
Explanation:
oxidation bicarbonation
What will happen to a population of organisms that are in an oxygen rich environment. (Double click the story board to draw on it)
Answer:
it will disolve
Explanation:
what dictates the structure of a protein molecule synthesized by the body?
Answer:
The DNA inside the cells nucleus.
Explanation:
what are 4 cellular activities that would require the energy of ATP?
Answer:
active transport (moving particles against the concentration gradient)making proteinscell division (for growth and repair)transmission of nerve impulsesHope this helps!
ATP is the energy currency of the cell and it is required almost everywhere. 4 cellular activities that would require the energy of ATP will be cellular respiration, ion transport, muscle contraction, nerve impulse.
What is the role of ATP ?The role of ATP is providing energy where it gets hydrolysed into ADP along with the phosphate ion where the reaction provides energy and this reaction brings about energy in the activity.
The cellular activities are the activities that take place inside the cell and various activities that will link to them in order to perform various functions. DNA synthesis, biochemical reactions, cellular respiration, cellular activities all takes place with the help of ATP.
Therefore, ATP is required almost everywhere in both cellular respiration activities and cellular activities.
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Where do daughter cells come from
Answer:
Parent cell
Explanation:
When a single parent cell divides, It creates two daughter cells. Hope this helps you!
How is a cruise ship like a cell? Name the organelles that have a similar function to the parts of a cruise ship.
I’ll give brainliest, thanks and 5 stars to the answer that stated all the organelles that are similar in function to the parts of a cruise ship.
Answer:
Nucleus - Controlls like the Captin or the control center of the ship
Ribosome - People that make the ship run
Vacuole - Rooms for guests to stay in.
Cytoplasm - Floor for people to walk on
Cytoskeleton - Walls of the ship (this could also be Cell wall)
Mitochondria - The fuel source
Endoplasmic Reticulum - It's a highway so maybe the halls or any main point on the ship where alot of people are.
how necessary is it for us to know about earthquakes, its nature, its effect, and its origins?
Answer:It’s important for us to know about earthquakes, so we’re prepared for them.
Explanation: For example, knowing where to hide or how to protect your body will prepare you for this dangerous event.
What was the optimum temperature for bromelain activities?