The two proteins directly involved in muscle contraction are MYOSIN AND ACTIN. The interaction between these proteins is responsible for muscle contraction.
The sarcomere is the basic unit of muscle cells (myofibrils) that mediate muscle contraction both in skeletal and cardiac muscle tissue.
During muscle contraction, myosin and actin proteins slide past each other, thereby leading to sarcomere shortening.
The myosin protein binds to actin filaments and thus myosin acts as a motor protein that drives filament sliding.
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The wood used for making paper is mostly made of
Answer:
Wood consists primarily of cellulose (mostly from fibers which give strength and support to the tree) and lignin, which cements the fibers together. Cellulose makes up roughly 65 to 80 percent, and lignin about 20 to 35 percent of the weight of wood.
Explanation:
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clusters of chlorophyll and accessory pigments are called ________.
What is your favorite passerifomes?
Mine is all the corvids! Specifically the steller's jay
Answer:
Mine would have to be Indian golden Oriole bird.
What is the function of the Golgi apparatus?
Question 15 options:
It provides an acidic environment for the digestion of macromolecules.
It constructs lipids and breaks down carbohydrates.
It modifies and stores proteins received from the endoplasmic reticulum.
It gives the cell shape and anchors many organelles in place.
Answer:
It modifies, stores, and exports proteins received from the ER.
Explanation:
It provides an acidic environment for the digestion of macromolecules.
-The lysosome is composed of multiple enzymes that degrades marcromolecules
It constructs lipids and breaks down carbohydrates.
-The smooth ER synthesizes lipids and metabolizes carbohydrates
It modifies and stores proteins received from the endoplasmic reticulum.
-The golgi apparatus is the site where proteins are processed and exported to other organelles.
It gives the cell shape and anchors many organelles in place.
-The cytoskeleton gives structure to the cell and anchors organelles in place.
Why do endemic species have a greater risk of becoming endangered than widespread species?
Answer:
Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) narrow (and single) geographical range, (2) only one or a few populations, (3) small population size and little genetic variability, (4) over-exploitation by people, (5) declining ..
Which is the smallest unit of life?
Organs
Molecules
Cells
Atoms
Answer:
Cell
Explanation:
Cell is defined as the basic,structural, functional,smallest and simplest unit of life. While cell us the smallest unit of life is because if anything happens to your cell,expecially the ones the ones that controls your heart,you may die. Which is why cell us the smallest unit if life
Nucleic acids are the organic compounds that control the making of _____ and contain the ______ to pass to the next generation.
Answer:
making of proteins
genetic material to pass to the next generation
Nucleic acids are the organic compounds, which control the making of proteins and contain the genetic material to pass to the next generation.
• The two prime kinds of nucleic acids are ribonucleic acid or RNA and deoxyribonucleic acid or DNA.
• The genetic material found in all the living species is the DNA, which is found in the nucleus of eukaryotes and is found in free-floating form in the cytoplasm in prokaryotes.
• This genetic material is passed on from generation to generation.
• The other kind of nucleic acid is RNA, which is mainly involved in the synthesis of proteins. The types of RNA, that is, tRNA, mRNA and rRNA takes place in the synthesis of protein and its regulation.
Thus, the given blanks can be filled with proteins and genetic material.
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Which phrase describes transmutation?(1 point) the conversion of protons to neutrons through nuclear changes the conversion of one substance to another through chemical changes the conversion of an atom of one element into a different element through nuclear changes the conversion of energy to matter through chemical changes
Answer:
B
Explanation:
PLEASE MARK AS BRAINLIEST!!!!!Transmutation is conversion of an atom of one element into different element through nuclear changes.
Transmutation consists of the conversion of stable nuclei into other nuclei if they are bombarded by fast particles.
Specifically, an atom can be transmuted by making particles or atoms collide with it at high speed, that is, to accelerate a particle is to increase its speed by some mechanism that imparts energy to it.
Thus, the transmutation of an element requires that there be a change within its nucleus, and in particular in the number of protons.
The neutrons or protons must have enough energy to overcome the nuclear forces that prevent their passage or exit from the nucleus of the atom to be transmuted.
Therefore, we can conclude that transmutation is conversion of an atom of one element into different element through nuclear changes.
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What is the use of insulin in the body?
Answer:
The pancreas responds by producing insulin, which allows glucose to enter the body's cells to provide energy. Store excess glucose for energy. After you eat — when insulin levels are high — excess glucose is stored in the liver in the form of glycogen.
Explanation:
how does the nucleolus's structure relate to its function
Answer:
The nucleolus takes up around 25% of the volume of the nucleus. This structure is made up of proteins and ribonucleic acids (RNA). Its main function is to rewrite ribosomal RNA (rRNA) and combine it with proteins. This results in the formation of incomplete ribosomes
4. Some early mornings , dew drops can be found on grass or a car parked outside,
but not on other materials such as the sidewalk. Why is that?
the nighttime temperature on grass and the car went below the dew point, but
the temperature of the concrete did not drop enough to reach the dew point
level
temperature on the grass and sidewalk were both above the dew point levels all
night
the relative humidity of the air above the grass was higher than it was above the
concrete
none of the above
Dew drops can be found on grass or a car parked outside but not on other materials such as the sidewalk because; The nighttime temperature on grass and the car went below the dew point, but the temperature of the concrete did not drop enough to reach the dew point level.
Definition:
The dew point is simply defined as the temperature below which the water vapour in a given volume of air at a constant pressure will condense into liquid water. More specifically, the dew point is the temperature at which the air is saturated with moisture.From the definition above, it is evident that the fact that the nighttime temperature on grass and the car went lower than the dew point temperature is responsible for the condensation of water vapour on grass and the car as opposed to the case in Concrete.
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what is a common characteristic of a syndesmosis and a symphysis?
Answer:
Both may be slightly moveable
what are these examples of
Monarch butterflies are extremely recognizable because of their bright orange and black wings.
Answer: Declarative sentence type.
Monarch butterflies migrate south in the wintertime, which allows them to reproduce all year long.
Answer: Declarative sentence.
Monarch Butterflies produce a toxin that poisons any potential predators if it's eaten.
Answer: Declarative sentence.
Thank You!
(I'm sorry if this is not what you are looking for, I didn't know what you wanted me to identify within the examples.:()
The HACCP system begins when the food is
and ends when the food is
Answers
А
thawed and cooked
B
delivered to the store and served to the Guest
prepared and served to the Guest
D
delivered and prepared
Answer:
What is B- delivered to the store, prepared and served to the Guest.
Explanation:
The HACCP system begins when the food is delivered to the store and served to the guest.
How HACCP system works?HACCP : hazard analysis critical control point.
It is a management system that addresses food safety through analysis and control of biological, physical and chemical hazard.
There is a working flow of HACCP that ensures food safety begins from raw material production, procurement, handling, to manufacturing, distribution and consumption of the finished food product.
Hence, it can be said that HACCP system begins when food is delivered to the store and served to the guest that is consumption of the final product.
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Why is it important to know which is your dominant eye?
Answer:
IT'S JUST A LIL BETTER THAN THE OTHER EYE
NO BIG DIFFERENCE TO SAY THAT WOULD DENY WHAT I JUST SAID. HOPE THIS HELPS.
BRAINLIST ???
what replaces the electrons excited by sunlight in photosystem?
Answer:
To replace the electron in the reaction center, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.
Explanation:
what is the first layer of hair that is cut by scissors when receiving a hair cut?
Answer: the guide?
Explanation:
Cuticle is the first layer of hair that is cut by scissors when receiving a hair cut.
What do you mean by cuticle?The cuticle is a layer of clear skin located along the bottom edge of your finger or toe. This area is known as the nail bed. The cuticle function is to protect new nails from bacteria when they grow out from the nail root.
A cuticle is a hydrophobic boundary layer on the outer surface of primary aerial organs. Its presence is a common feature of all vascular and some non-vascular plants.
The cuticle plays an important role in nail health. They provide protection for the tissue that grows new cells to build nails. As you know, your nails are constantly growing, that's why you have to keep them manicured.
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how i know a chemical reaction took place
Answer:
Gas bubbles, precipitation, color change, temperature change, if some light is produced, the volume changes, or taste and or smell changes.
Explanation:
I learned these were the 7 signs of a chemical reaction but some schools and curriculums vary on how many signs of reactions there are. I hope this helped!
true or false? a haploid organism has one pair of homologous chromosomes.
Answer:
False
Explanation:
A haploid has one SET of homologous chromosomes
It is false that a haploid organism has one pair of homologous chromosomes.
What are haploid organisms?When an organism's cells only have one set of chromosomes, the organism is said to be haploid.
All organisms that reproduce are diploid (having two sets of chromosomes, one from each parent). Only the egg and sperm cells in humans are haploid.
Male ants, bees, and wasps are haploid organisms because they develop from unfertilized haploid eggs, whereas females (workers and queens) are diploid, making their system haplodiploid. The majority of animals are diploid.
The term "diploid" describes how many complete sets of chromosomes there are in each cell of an organism: diploid cells have two entire sets.
On the other hand, haploid organisms only have one complete set of chromosomes. Throughout meiosis and sporadically in mitosis, chromosome sets can change.
Thus, the given statement is false.
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Cooler denser air produces an area of _________pressure, and moves in under rising air.
Answer:
cooler denser air produces an area of higher air pressure and moves in under rising air
Explanation:
What do you already know about the Moon?
Answer:
the moon is
Explanation:
round
In space
a greyish color
has indentations
dry
low gravity
what organelle is made of two layers of phospholipids
Answer:
The plasma membrane
Explanation:
What contribution did Theodor Schwann make to the cell theory?
Answer:
In 1838 Matthias Schleiden had stated that plant tissues were composed of cells. Schwann demonstrated the same fact for animal tissues, and in 1839 concluded that all tissues are made up of cells: this laid the foundations for the cell theory.
which does not maintain the health of your endocrine system?
Answer:
Getting 5 hours or less of sleep every night.
Explanation:
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after the blood leaves the heart, through what kinds of vessels and in what order does the blood move?
Answer: the pulmonic valve, into the pulmonary artery and to the lungs.
Explanation:
what is the difference between smooth and rough er?
Photosynthetic organisms like grass are able to ________. Group of answer choices turn light energy from sunlight into sugars use water they take in through their leaves as a final electron acceptor use molecules in the air as a major source of carbon make all of their organic matter from organic molecules in the soil
use molecules in the air as a major source of carbon .
How can you tell, when you look at a cross section of a young stem, whether it is a dicot or a monocot?
Answer:
Monocot and dicot stems differ in the arrangement of their vascular system
All stems have nodes, internodes, and axillary buds; these features distinguish them from roots and leaves, which do not have them.
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What is evaporation?
Answer:
When liquid turns into vapor
Explanation:
hope this helps <33
have a nice day
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A liquid turning into a gas is evaporation. It is how water gets from the surface of the Earth to the atmosphere.
Temperature, surface area, wind speed, and humidity affect a liquid's evaporation rate.
Latent heat is a form of energy held in the evaporated water when it evaporates and cools.
Most of the air's moisture evaporates from rivers, lakes, seas, and oceans. Water at the surface of the Earth evaporates into water vapor, which rises into the sky and forms clouds, which eventually release water back onto Earth as precipitation.
What type of evidence does cosmic background radiation provide about the origins of the universe?
It supports predictions of the composition of the early universe.
It pinpoints the size of the original universe.
It verifies that the early universe was once extremely hot.
It proves that the universe is expanding.
Answer:
it verifies that the early universe was once extremely hot.
Answer:
it verifies that the early universe was once extremely hot.
Explanation: