In the fluid Mosaic model, the cell membrane is made of two kinds of Molecules?
Answer:
The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) that are constantly moving. This movement helps the cell membrane maintain its role as a barrier between the inside and outside of the cell environments.
Explanation:
Describe the differences and similarities between mitosis and binary fission.
Answer:
Binary fission is a method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves. Another term for the process is cellular cloning. Mitosis is cell division that results in two identical daughter cells and is primarily used for growth of an organism.
Explanation:
Binary fission has been known as method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves. Another term for the process is cellular cloning.
What is mitosis?Mitosis is cell division that results in two identical daughter cells and is primarily used for growth of an organism.Chromosomes are generally seen below a mild microscope best for the duration of the metaphase of molecular division.
The chromosomes are separated by a structure called the mitotic spindle. A chromosome is a lengthy DNA molecule with component or all of the genetic material of an organism. In maximum chromosomes the very lengthy skinny DNA fibers are lined with packaging proteins; in eukaryotic cells the maximum vital of those proteins are the histones.
These proteins, aided by chaperone proteins, bind to and condense the DNA molecule to keep its integrity. These chromosomes show a complicated third-dimensional structure, which performs a large position in transcriptional regulation. Chromosomes are generally seen below a mild microscope best for the duration of the metaphase of molecular division.
Therefore, Binary fission has been known as method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves. Another term for the process is cellular cloning.
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Which of the following processes allows the cells of an
organism to use carbon from the environment?
A mitosis
B fertilization
C transpiration
D photosynthesis
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Answer:
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Explanation:
What are the electrons in the outermost energy level called?
Answer:
The outermost energy level that (in the ground state of the atom) contains electrons is called the "valence shell" of the atom. These valence electrons are responsible for all chemical bonds between atoms.
Explanation:
Given the DNA sequence 3'TACCGAGGCATT 5' what is the complementary strand sequence?
Answer:
′UACCAAGGUAG5
Explanation:
DNA is a two-stranded molecule. Each strand is a polynucleotide composed of A (adenosine), T (thymidine), C (cytidine), and G (guanosine) residues polymerized by "dehydration" synthesis in linear chains with specific sequences. Each strand has polarity which runs from 5′ to 3′.
In DNA, A pirs with T and G pairs with C.
Fo through the original 5′ to 3′ sequence pairing each A with T ad each C wth G.
While RNA is a single strand molecule. This Strand also consists polynucleotide composed A, C, G and U (uridine).
For a complementary strand replace A with U (because RNA does not consist T), T with A, C with G, and G with C.
Hence,
Given strand: 5′ATGGTTCCATC3′
Complementary RNA strand: 3′UACCAAGGUAG5′
Keep in mind that the complementary strand will read from left to right in the 3 to 5 direction.
essica was looking at the sky one night using a telescope. While looking at the night Sky, she was able to find the Andromeda Galaxy. She asked her older sister what are the differences and similarities between the 3 types of Galaxies? What should her older sister answer? Please remember to support your answer with examples for each.
Atleast 3 complete sentences.
Please help! thank you!
Answer:
Today, the basis for how we classify galaxies is still rooted in morphology, or how the galaxies appear. Astronomers group galaxies by shape, and although there are many different types of galaxies, most fall into one of three categories: spiral, elliptical or irregular.
Explanation:
Barred Spiral Galaxy
Barred spiral galaxies share the same features and functions as regular spiral galaxies, but they also have a bar of bright stars that lie along the center of the bulge, and extend into the disk. The bright bulge has very little activity here and contains mostly older, red stars. The bar and arms have lots of activity.including star formation.
While the classification for barred spirals is the same as it is for regular spiral galaxies, the bar must be considered as well. Short bars correlate to tighter galaxies and will be included in the designation SBa. SBb have longer bars and SBc are the longest. Most astronomers now agree that the Milky Way is a barred spiral galaxy.
Elliptical Galaxy
Elliptical galaxies can be recognized by their elongated spherical shape and their lack of nucleus or bulge at the center. Although there is no nucleus, the galaxy is still brighter in the center and becomes less bright toward the outer edges of the galaxy. Stars, gases and other materials are spread throughout the elliptical galaxy. An elliptical galaxy can be nearly round or long and cigar shaped.
It is believed that a great deal of the mass in an elliptical galaxy is due to the presence of a central black hole. These galaxies have very little activity and contain mostly old stars of low mass, because there aren’t the gasses and dust needed to form new stars.
Irregular Galaxy
Irregular galaxies are composed of gasses, dust, stars, nebulous formations, neutron stars, black holes and other elements common to all galaxies. Irregular galaxies are named so because they have no definite shape, but like all galaxies, they are in constant motion, moving outward and away from the center of our universe. Irregular galaxies are divided into two classifications: Im and IO.
Im galaxies occur most often among irregular galaxies and may show a trace of the spiral galaxy arms. IO galaxies are completely random and can be called chaotic in nature. The Magellanic clouds that border our own Milky Way Galaxy are examples of Im galaxies. Approximately 20% of our galaxies are classified as irregular
What happens at the end of the transcription process?
RNA is copied to form messenger RNA, also called mRNA.
DNA produces another copy of itself, also called dDNA.
RNA is copied into a duplicate copy of RNA, also called dRNA.
DNA produces messenger RNA, also called mRNA.
Answer:
DNA produces messenger RNA, also called mRNA.
During the action of a sodium-potassium pump, 50 ATP molecules were spent. Predict how many sodium ions are transported across the cell membrane. A. 50 B. 100 C. 150 D. 200
Answer:
150
Explanation:
each atp moves 3 Na+ and 2 K+ molecules
Filipino po, pa help po plssss need lang po
Answer:
1. Basket
2. Batya
3. Damit
4. Saranggola
5. Ballpen
di ako sure sa una at pang lima pero sabi ni ate tama naman daw :))
A comet is a
meteoroid that travels through Earth’s atmosphere and hits the surface.
meteoroid that burns up in Earth’s atmosphere, producing a streak of light.
small, rocky object that orbits the Sun and is usually found in a belt between the orbits of Mars and Jupiter.
small object made of ice and dust that orbits the Sun and forms a coma as it approaches the Sun.
3. Which of the following parts of the human body is most complex?
A.
heart
B.
kidney
C.
white blood cell
D.
central nervous system
Which of the following is a central idea of cell theory? (5 points)
All living things are made of at least two cells.
O Cells cannot live alone as single organisms.
O All living things have five or more types of cells.
Cells are the basic unit of structure and function in living things.
How do biological systems respond when acids or bases are added?
Biological systems do not experience any changes in pH.
Biological systems do not experience any changes in pH.
Cells produce different molecules that can function at the new pH levels.
Cells produce different molecules that can function at the new pH levels.
Most biological molecules can function at any pH value.
Most biological molecules can function at any pH value.
They have substances that counteract acids or bases to prevent the pH from changing.
Answer:
The correct answer is - They have substances that counteract acids or bases to prevent the pH from changing.
Explanation:
Including human, all the organism depends on the water so therefore known as waster system based which suggests that they depend on the acid-base liquid equilibrium to maintain its cellular functions and homeostasis.
Acid and bases are influences and determine the pH value of the chemistry of biological systems as every cycle is affected by the pH fluctuation so the maintenance of pH is very critical.
so as to keep biological system compound and in the equilibria of protonation, they have certain substances in each cycle or part that counteract the acid and base to maintain pH.
for instance:
phosphate ion maintains the Cytoplasm pH
the bicarbonate ion regulates the Blood pH
If Donald trump had no hair he would look how would he look like?
Answer:
He would look like a ghost
Explanation:
Answer:
like a potato
Explanation:
because he head would be round
How do the three types of neurons work together?
Answer:
Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain. Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands.
Explanation:
Three types of neurons are:-
Sensory neuronsMotor neuronsInterneuronsWork of Neurons?Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain. Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands.What are neurons?Neurons , also know as nerve cells, send and receive signals from the brain .These are the fundamental units of the brain and nervous system.To know more about neurons here
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PLZ HELP ME.
7. What does the term "binomial nomenclature" mean?
8. What two taxons (categories) make up a scilintific name?
9. Why do taxonomists use Latin names and not common ones?
10. Which Domain will we find all the organisms we will study in zoology?
3 The graphs show the reaction rate for an enzyme across a range of temperatures and pH.
Enzyme Reaction Rates
Rate of Reaction
inn
n
0
8
10
12
10 20 30 40
Temperature (°C)
Based on these data, this enzyme functions best at what temperature and pH?
A Temperature of 27°C and a pH of 4
B Temperature of 37°C and a pH of 6
C Temperature of 40°C and a pH of 8
D Temperature of 50°C and a pH of 10
why does she feel pain
Toddlers and preschoolers may nap:
On beds, mats, or cots.
On beds.
In cribs.
On nap mats.
On cots.
Answer: mats and cots well at least in school at home i would see them sleeping in beds
Consider the following events that take place when rip
currents occur.
Which list shows the order of events in the productie
rip currents?
A. Waves travel to the beach.
B. Waves are trapped by the sandbars.
C. Waves reach the shore and go back to the ocean.
D. Waves speed up and flow between the sandbars.
E. Waves are broken by the sandbars.
O A, B, C, D, E
O A, D, C, B, E
O A, E, C, B, D
O A, E, C, D,B
Answer:
Its C, I took the quiz.Explanation:
Sorry this is lateAnswer:
c
Explanation:
What type of mutation would result (nonsense, missense, silent,
Frame-Shift)
Answer:
Nonsense missense silent
A student is conducting an investigation to find out which food his dog likes best. Which is the dependent variable in his investigation
Answer:
the dependent vaiable would be the dog. the independent would be the type of food you are using. the independent vaiable is something you can change and you can not change the dog.
help !!!!!!!!!!!!!!!! Ik the answer doe hehe
As thermal energy is added to a substance, which of the following changes can be predicted?
Answer:
The prediction is that there could be a chemical reaction or there could be a change of shape.
Explanation:
Answer:
mantle
Explanation:
The discovery of cells was made possible by the invention of microscopes. Today, several different types of microscopes are used by scientists. Which of the following best describes transmission electron microscopes? A.Transmission microscopes produce images of cell surfaces. B.Transmission microscopes produce three-dimensional images of cells. C.Transmission microscopes produce highly detailed images of cell structures. D.Transmission microscopes produce images of living cells.
Answer:
C
Explanation:
:)
The statement that best describes transmission electron microscopes is:
C.Transmission microscopes produce highly detailed images of cell structuresA microscope is the instrument that is used to view microorganism and magnify them so that they cab be visible to the human eyes.
The transmission electron microscopes are those micrpsccp[es wjich makes use of a particle beam in order to produce a well magnified image and can magnify an object uo to two million times.
As a result of this, they produce highly detailed images of cell structures.
Therefore, the correct answer is option C
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What organelle would you not find in a plant cell? Chloroplasts,centrioles,central vacuole,or cell wall?
Answer:
Centrioles
Explanation:
If we look at ths other options Chloroplast and Cell Wall are both needed for a plant to survive and function. So we automatically know that it's going to be there so those aren't an option. We know that both animal and plant cells have a vacuole but plant cells have larger ones so we know that's not an answer. Leaving us with the only other possible answer left, Centrioles.
Answer:
Hey!
Your answer is CENTRIOLES
Explanation:
We know that Plants have a CELL WALL (shape), a CENTRAL VACUOLE (water storage etc) and CHLOROPLASTS (photosynthesis)
BUT Centrioles don't form parts of the "components" of the plant cell...
I HOPE THIS HELPED YOU!PLEASE HELPPP
1) Briefly describe the process of DNA replication.
a) Start with the molecular machinery and be sure to describe what DNA polymerase does. Use the terms ‘free nucleotides’, ‘helicase’, ‘polymerase’, ‘complementary’.
b) describe the result; how many strands were made? Describe their composition. Use the terms ‘parental DNA’ and ‘new DNA’.
Answer:
The biological process that involves produces two exact copies of DNA from a DNA molecule is called DNA replication.
In this process, the enzyme helicase unzips the DNA double helix by breaking the hydrogen bonds that bind bases together in the structure. Unzipping the hydrogen creates a replication fork. Every strand of the DNA acts as a template but oppositely oriented known as the leading strand in 3’ to 5’ direction and the lagging strand in the 5’ to 3’ direction.
One of the strands is oriented in the 3’ to 5’ direction (towards the replication fork), this is the leading strand. The other strand is oriented in the 5’ to 3’ direction (away from the replication fork), this is the lagging strand. As a result of their different orientations, the two strands are replicated differently.
Primer acts as an initiating site for DNA synthesis and DNA polymerase enzyme adds new complementary nucleotide base by attached and moving on the leading strand in the direction of 5' to 3' which is reversed to the strand.
After the binding and synthesis of all the bases, the enzyme called exonuclease removes the primer from the strand. One new and an old chain of two DNA molecules are synthesized by DNA replication due to the one new and one parent molecule in DNA it is known as semi-conservative.
13. Galapagos finches are birds that live on islands
off the coast of South America. The finches on the
various islands are very different from each other.
As a result of the different food resources on the
islands, which of the following structures of the
Galapagos finches experienced the greatest
change through natural selection?
(5 Points)
Head size
Eye shape
Feather color
Beak shape
Galapagos finches experienced the greatest change through natural selection in the beak shape. The correct option is D.
What is natural selection?Natural selection is the variation in individual survival and procreation brought on by phenotypic variances.
The evolution of a population's heritable features across generations is a fundamental mechanism of evolution.
Short beaks of Darwin's finches proved to be an adaptation that rendered them better adapted to grub-eating and poking holes in the ground.
However, Darwin's theory of natural selection was strengthened by Galapagos finches.
Until they all split off to become separate species, Darwin's Finches' advantageous characteristics were chosen for over many generations. These birds possessed distinct beaks, although being almost identical to mainland finches in all other respects.
Thus, the correct option is D.
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Which of the following correctly differentiates between the science in the time of Aristotle and science in the time of Galileo?
a) In Galileo's time, science was more like philosophy, whereas in Aristotle's time, it involved objective, empirical test.
b) In Aristotle's time, science was more like philosophy, whereas in Galileo's time, it involved objective, empirical test.
c) In Galileo's time, science was practiced only by great thinkers, whereas in Aristotle's time, it could be practiced by anyone.
d) In Aristotle's time, science was practiced only by great thinkers, whereas in Galileo's time, it could be practiced by anyone.
Answer:
the answer is b i believe:)
Explanation:
hope this helps love:))