2. Explain why glucose continues to enter a cell, even when the concentration inside the cell might be higher than outside.
Answer:
Both diffusion and facilitated diffusion are driven by the potential energy differences of a concentration gradient. Glucose enters most cells by facilitated diffusion. ... Na+ is maintained at low concentrations inside the cell and K+ is at higher concentrations. The reverse is the case on the outside of the cell
Glucose continues to enter a cell, even when the concentration inside the
cell might be higher than outside as a result of the process known as active
transport.
Active transport involves the movement of molecules through a
cell membrane against the concentration gradient. Examples include:
Antiport Pumps.Symport Pumps.This type of transport requires the use of energy such as ATP to move the
glucose molecules into the cell.
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In the cells of humans and other animals, a great deal of energy is dedicated to operating a pump that transports sodium (Na+) ions out of cells and potassium (K+) ions into cells. This transport creates a chemical and electrical gradient. Maintaining the proper balance of sodium and potassium is critical to ensuring that nerve cells work properly. Nerve cells drive muscle contractions—including heart muscles—and are responsible for animals’ abilities to sense their environment and for humans’ ability to think.
Scientists gain a better understanding of the sodium-potassium pump by creating models of what the pump accomplishes. Such models are used to examine many other complex processes as well.
This model of the sodium-potassium pump illustrates the process by which sodium is pumped out of cells and potassium is pumped in. The sodium-potassium pump moves the two different ions in opposite directions.
Where in a cell does this transport process take place?
A.
nucleus
B.
cell wall
C.
cell membrane
D.
vesicle
The Transport process takes place in cell membrane.
What is Transport?Cell transport describes the transportation of a material across a cell membrane. The chemical has the ability to enter or exit cells.
The plasma membrane and cell membrane are both permeable to different substances. The nature of the plasma membrane is quite selective.
Cell transport is very important for transport of molecules. There are two transport of cell transport of endocytosis and exocytosis.
Therefore, The Transport process takes place in cell membrane.
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Which of the following best describes a population ? A)members of the same species living in the same place at the same time. B) all members of the same species anywhere on earth at any point in history.C) all kinds of red birds in an area.D) all types of organisms living in the same place
Answer:
a
Explanation:
Determine the age of the rocks and fossils by moving the samples to the mass-spectrometer. Record the data in the Student
Guide
Answer:
No answer
Explanation:
This is just a data collecter, to add the information into your 'Student Guide". Don't fret !
Answer:
No answer needed. Just drag them over, and record the evidence in the eNotes.
Explanation:
a ___ specimen should be used for the CRP test.
A: plasma
B: serum
C: urine
D: spinal fluid
Answer:
I think your answer is B. Serum.
Discuss how the concept of "survival of the fittest" was developed and what it means
PROMT
Answer:
Survival of the fittest was originally used to describe the ability of a species to thrive despite having some weak offspring. The strong and capable would continue to thrive while the incapable would die or be left behind.
Explanation:
Have a great day, and spread some positivity!
Select the statement below that is true concerning the smallpox
a. has not occurred naturally anywhere in the world since 1977.
b. All of the choices are correct.
c. has potential as a weapon of bioterrorism. d. aided European domination of new world nations.
e. has killed millions of people.
Answer:
letter a. has not occurred naturally anywhere in the would since 1977 Ang sagot diyan
Fill in the blanks
Word bank:
Complimentary bases
mRNA
ribosome
tRNA
transcription
Protein
Cytoplasm
Codon
Nucleus
Amino acid
Translation
AUG
Helicase
Peptide
UAG UGA UAA
Stop
Template
DNA Carries the cell’s genetic information however it cannot leave the ________.
Because of this, it copies part of its nucleotide sequence into a complementary copy of _____ during the process called ______.
_______ separates the DNA strands.
____ from which nucleotides are assembled into a strand of RNA.
Each three letter sequence on the mRNA is called a _____.
The start codon is _____ and the three stop codons are _____.
Once the mRNA leaves the nucleus it goes to the ____ to prepare for protein synthesis which is called _______.
During this process, a _____ molecule brings the _____ to the ribosome.
The amino acids are hooked together by _____ bonds.
The tRNA is able to match up to the mRNA by the ____ in its anticodons.
When the _____ codon is reached, the _____ chain is released into the _____.
The complete sentences with the correct words in the blanks is as follows.
DNA Carries the cell’s genetic information however it cannot leave the nucleus.
Because of this, it copies part of its nucleotide sequence into a complementary copy of mRNA during the process called transcription.
Helicase separates the DNA strands.
Template from which nucleotides are assembled into a strand of RNA.
Each three letter sequence on the mRNA is called a codon.
The start codon is AUG and the three stop codons are UAG, UGA, and UAA
Once the mRNA leaves the nucleus it goes to the cytoplasm to prepare for protein synthesis which is called translation.
During this process, a tRNA molecule brings the amino acids to the ribosome.
The amino acids are hooked together by peptide bonds.
The tRNA is able to match up to the mRNA by the complimentary bases in its anticodons.
When the stop codon is reached, the protein chain is released into the ribosome.
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Answer:
DNA carries the cell’s genetic information; however, it cannot leave the nucleus.
Because of this, it copies part of its nucleotide sequence into a complementary copy of
mRNA during the process called transcription.
During this process, the enzyme,
helicaseseparates the DNA strands.
One strand of DNA acts as the
template from which nucleotides are assembled into a strand of RNA.
Each three letter sequence on the mRNA is called a codon .
The start codon is AUG and the three stop codons are UAG UGA UAA.
Once the mRNA leaves the nucleus it goes to the ribosome to prepare for protein
synthesis which is called translation.
During this process, a tRNA molecule brings the amino acid to the ribosome.
The amino acids are hooked together by peptide bonds.
The tRNA is able to match up to the mRNA by the complimentary bases in its anticodons.
When the stop codon is reached, the protein chain is released into the cytoplasm.
Blank 1:
nucleus
Blank 2:
mRNA
Blank 3:
transcription
Blank 4:
helicase
Blank 5:
template
Blank 6:
codon
Blank 7:
AUG
Blank 8:
UAG UGA UAA
Blank 9:
ribosome
Blank 10:
translation
Blank 11:
tRNA
Blank 12:
amino acid
Blank 13:
peptide
Blank 14:
complimentary bases
Blank 15:
stop
Blank 16:
protein
Blank 17:
cytoplasm
Please help and give the right answer. Which statement describes the process of cellular respiration.
A) It takes place only in animal cells and involves chemical reactions with oxygen and releases stored energy.
B) It takes place in plant cells and involves chemical reactions with carbon dioxide, water, and energy from the sun to produce sugars.
C) It takes place in plant and animal cells and involves chemical reactions with oxygen to release stored energy.
D) It takes place in plant and animal cells and involves the division of cells.
Answer:
C
Explanation:
Cellular reparation tales place in both plant and animal cells, and it has to do with energy, using elimination all but C is crossed out.
Glucose+O2---(energy released)--> CO2+water
Hope it is correct
The process of cellular respiration takes place in plant and animal cells and
involves chemical reactions with oxygen to release stored energy.
Cellular respiration involves metabolic reactions which takes place in plant
and animal cells and converts chemical energy into energy in the form of
ATP and then releases waste products.
Cellular respiration usually takes place in the mitochondria as it is regarded
as the power house of the cell.
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Plz help I need help
Answer:
cell wall
Explanation:
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PLEASE I NEED HELP!!! 100 POINTS!!!
Food sample "E" tested positive for which tests?
Select the bacterial group below that does not form spores
a. Clostridium botulinum
b. Bacillus anthracis
c. Escherichia coli
d. Clostridium difficile
Answer:
b
Explanation:
what happens when a normal protein is embedded into the cell membrane.
How did flooding lead to an increase in fires in the Mojave Desert, thus decreasing the Joshua tree population?
Answer: Flooding gave rise to more plant material, which became fuel for fires.
Answer:
Flooding gave rise to more plant material, which became fuel for fires.
Explanation:
Giving brainliest!!!!!!!!!!!!!!
Answer:
bacteria
Explanation:
bacteria and archaea are the only prokaryotes.
Answer:
Cycad
Explanation:
I am not 100% sure please correct me if I am wrong
Atoms whose outer electron shells contain eight electrons tend to do what
Answer:
Atoms with a full valence shell are non reactive. Most shells have room for 8 electrons, so these atoms described are most likely noble gases. The answer is more or less nothing. They do not react because they have no electronegativity and no "extra" electrons
Explanation:
Atoms with a full valence shell are non reactive. Most shells have room for 8 electrons, so these atoms described are most likely noble gases. The answer is more or less nothing.
What is electronic configuration of carbon?Carbon atomic number is 6. Its electronic configuration is 1s2 2s2 2p2. As you can see from the electronic configuration the inner shell has 2 electrons and the outer shell with principal quantum number 2 has 4 electrons.
An atom is made up of electrons, protons and neutrons. Both protons and neutrons are located in the nucleus of the atom, while electrons are in the shell/s. The shell of an atom is the orbit on which the electrons revolve around the nucleus. The number of shells in an atom extends from the first, n =1, to infinity, n = ∞, depending on the number of electrons in the given atom.
The first shell, n =1, is the ground state and can only contain a maximum of 2 electrons. The inner shell contains two electrons and the outer shell contains four electrons.
Therefore, Atoms with a full valence shell are non reactive. Most shells have room for 8 electrons, so these atoms described are most likely noble gases. The answer is more or less nothing.
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In hot sunlight, dry sand heats up more than ocean water. What principles of heat and thermal energy does this difference demonstrate?
Answer:
1) Heat capacity
2) Thermal Conductivity
3) Heat reflection
Explanation:
What is the role of tRNA during translation?
O A. It moves the codons into a chain.
B. It provides the code for the protein.
O C. It translates from amino acids to nucleic acids.
O D. It moves the amino acids into a chain.
Answer:
Role of tRNA in translation
tRNA is responsible for bringing amino acids to to developing chain amino acids on sequence of mRNA through ribosomes.
Explanation:
Answer:
it moves the amino acids into a chain
Explanation:
yourrage told me
A cell from which organism would most likely be smallest?
Answer:
A
Explanation:
a bacteria would be the smallest thing in that list resulting in the smallest cell
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No links please!!!!
What is some
WATER BIOMES??
List at least 2
Answer:
ponds, lakes, river, and streams.
Explanation:
Hope this helps :)
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What is the significance of extra atmospheric carbon dioxide in the earths earth's atmosphere
Answer:
Extra Carbon Dioxide in the atmosphere increases the temperature on Earth.
Explanation:
Carbon Dioxide is a greenhouse gas so when there is increasing Carbon Dioxide we see the greenhouse effect.
28
¿Cuántos elementos hay presente en una molécula de agua (H20)?
(3 puntos)
1
2
3
4
Answer:
sana all may brainnnnnnnnnnn
Why is plastic a non-biodegradable and nonpoint source of pollution?
Plastic is a non-biodegradable and non-point source of pollution because it cannot be broken down into degradable materials by micro-organisms. It comes from man-made substances and industries therefore, it is non-point pollutant.
What is Plastic?Plastic is a non-biodegradable and non-point pollutant. Because, the enzymes in the microorganisms cannot break down the waste into bio-degradable materials as microbes cannot recognize the bonds that hold these polymers together. Eventually, the polymers in plastic may break down, perhaps after hundreds of years. But after a long time, the damage is already done to the environment.
Nonpoint source of pollution comes from oil, pet waste, herbicide, bacteria, sediment, and any other contaminant that ends up on the ground naturally or from human activity.
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What is an electrolytic cell?
A. A cell with a negative cell voltage
OB. A cell with a spontaneous redox reaction
C. A cell with a positive cell voltage
D. A cell that has a salt-bridge connection
Answer:
c
Explanation:
Answer: A. A cell with negative voltage
Explanation: took the test
How is the plasma membrane of a cell like dialysis tubing?
Like a cell membrane, dialysis tubing has a semi-permeable membrane, which allows small molecule to permeate through the membrane. Thus, the dialysis tubing mimics the diffusion and osmosis processes of the cell membrane (Alberts, 2002). ... Instead, facilitated diffusion would be needed to transport the glucose.
Which statement correctly describes how energy is made in photovoltaic cells and how energy is made in
photosynthesis?
Answer:
c
Explanation:
edge2021
Answer: Photovoltaic cells need light to make energy, while photosynthesis can make energy that needs light and energy that does not need light.
Explanation: Just took the practice.
Identify organelles in a plant cell.
The organelles in the plant cell that are shown in the image are: A: Chloroplast, B: Vacuole, C: Cell wall and D: Endoplasmic reticulum.
A: Chloroplast - This organelle is responsible for photosynthesis, the process by which plants convert sunlight into energy and produce glucose. Chloroplasts contain chlorophyll, a pigment that captures light energy.
B: Vacuole - The vacuole is a membrane-bound sac filled with fluid, primarily containing water and various dissolved substances. It plays a role in storing nutrients, waste products, and maintaining turgor pressure in plant cells.
C: Cell Wall - The cell wall is a rigid outer layer found in plant cells, bacteria, fungi, and some protists. It provides structural support and protection for the cell, helping maintain its shape and integrity.
D: Endoplasmic Reticulum (ER) - This organelle is involved in the synthesis, folding, modification, and transport of proteins and lipids. It can be rough (with ribosomes on its surface) or smooth (lacking ribosomes). The rough ER is involved in protein synthesis and modification.
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when do humans use anaerobic respiration
Answer:
Anaerobic respiration in humans occurs in muscles during strenuous exercise when sufficient oxygen is not available.
Explanation:
The collect data step of the scientific method comes before the hypothesis step. True or False?
Answer:
true after data collection you state your hypothesis
5. What is the advantage of looking at prepared slides on living and nonliving organisms under the
Micsorocope?
Answer:
Explanation:
Living:
1. You see how the organism (cell) moves.
2. You see how the organism is made up of all sorts of different things that you could not see without the help of a microscope.
3. You see how blood (for example) is made up of all sorts of cells that have far different jobs.
4. You see how bone marrow (for example) shows how different cells interact.
Non Living.
1. You see how the cell structures interlock
2. You see how different structures look under an immense magnification that you cannot see with the naked eye.
3. You see how animal and plant tissue is different.