Answers
Answer:
Active transport across membranes is like refilling an empty soda can after pouring the soda into a cup. It takes effort (energy in the form of ATP) to pour the soda back into the can, it wouldn't typically happen on its own.
Explanation:
Cells use several transport mechanisms to move substances across their plasma membranes. Plasma membranes control all movement of substances through passive transport, which does not use energy; and active transport which requires chemical energy in the form of ATP.
Active transport moves substances out of cells against their gradients. In the cell, glucose can be transported inwards for respiration. However, because the internal environment is typically concentrated, (and glucose is needed in high amounts) this requires the use of transport enzymes and ATP.
The question above is intended to assess your ability to relate cell transport types to your personal experience. For that reason, I can't answer this question for you, but I'll help you answer it.
As you may already know, cell membranes limit the transport of substances into and out of the cell. This makes the cell create a mechanism that allows it to absorb and expel substances. These mechanisms are the cell transport mechanism.
Below you will find a definition of cell transport:
Simple diffusion: Allows molecules to be transported into or out of the cell. In this process, they leave the place where they are in greater concentration to a place with less concentration. An example of this can be seen in an elevator that is full of people, reaching the point where some people need to get out of the elevator and stay outside, where there is no one.Osmosis: Allows the transport of water into or out of the cell. In this case, the water leaves where it has a lower concentration of salts and goes to where it has a higher concentration of salts. An example of this can be seen when you need to add milk to dilute your powdered chocolate.Facilitated diffusion: This also allows the transport of substances into or out of the cell. These substances leave the place where they are in greater concentration to the place of lesser concentration, but leave with the help of specific proteins. An example of this can be seen when the postman takes your package from the post office and takes it to your house.Active transport: Occurs in the same way as facilitated diffusion, but it is the only type of cell transport that allows the cell to spend energy. An example of this occurs when you have to leave the house and go to the post office to pick up your package.More information:
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Related Questions
Nucleic acids contain ___ material such as DNA.
Answers
Answer:
Genetic Material?
not sure
Explanation:
please someone answer this
Select the correct answer.
Compare a cup of hot coffee with the Pacific Ocean. Which statement about thermal energy and temperature is correct?
A.
Water in the Pacific Ocean has more thermal energy and a higher temperature.
B.
Water in the Pacific Ocean has less thermal energy and a lower temperature.
C.
Water in the Pacific Ocean has less thermal energy and a higher temperature
D.
Water in the Pacific Ocean has more thermal energy and a lower temperature.
Answers
Answer:
D. Water in the Pacific Ocean has more thermal energy and a lower temperature.
Explanation:
Thermal energy is a form of kinetic energy which deals with the movement of molecules in a medium.
Temperature is a measure of the heat energy of system. Heat is the average kinetic energy of the particles of a medium.
The pacific ocean has more molecules contained in it which is the reason why it will have more thermal energy. The cup of coffee has few particles will be at a higher temperature. Since the average kinetic motion is high compared to that of the ocean.Following the cell division of a eukaryotic cell, the two daughter cells end up with the wrong number of chromosomes. One has one too many chromosomes and the other has one too few. During which phase of mitosis did this error likely occur?
Answers
The error most likely occured during the anaphase of mitosis.
MITOSIS:
Mitosis is a type of cell division in which two genetically identical cells result from a single parent cell. Mitotic process occurs in various stages namely: interphase, prophase, metaphase, anaphase and telophase. The chromosomes separate i.e. are pulled apart equally into each daughter cells at the ANAPHASE STAGE. Hence, an error in cell division in which one daughter cell has one too many chromosomes and the other has one too few chromosomes occured specifically in the ANAPHASE STAGE.Learn more at: https://brainly.com/question/3327479?referrer=searchResults
What are 2 pieces of evidence that support the Continental Drift Theory? Explain how they support the theory.
Answers
Answer:
Explanation: In the early part of the 20th century, scientists began to put together evidence that the continents could move around on Earth's surface. The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.
The fit of the continents; the dispersion of ancient fossils, rocks, as well as highlands; and the positions of ancient climatic zones were all evidence for continental drift.
What is Continental Drift Theory?Continental drift was a groundbreaking theory that explained how continents shift position on the Earth's surface.
Alfred Wegener, a geophysicist and meteorologist, proposed the theory in 1912, but it was rejected by mainstream science at the time.
Plate tectonics caused continental drift over millions of years. Plate tectonics also explained how plate movement causes volcanoes and earthquakes, as well as how continent collisions create massive mountain ranges.
Continental drift was demonstrated by the fit of the continents, the dispersion of ancient fossils, rocks, and highlands, and the positions of ancient climatic zones.
Thus, these are the evidences that support the Continental Drift Theory.
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Bacteria divide by a process called binary fission where one bacterial cell will replicate its
DNA as the cell elongates, then the cell will divide into 2 identical daughter cells. Assuming
favorable conditions, bacteria divide every 20 minutes. If one bacterial cell replicated
according to this condition, how many bacterial cells would one expect to find at the end of
two hours and 20 minutes (140 minutes)?
lol
Answers
Answer:
The usual method of prokaryote cell division is termed binary fission. The prokaryotic chromosome is a single DNA molecule that first replicates, then attaches each copy to a different part of the cell membrane. When the cell begins to pull apart, the replicate and original chromosomes are separated.
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Answers
Answer:
carbohydrates I think
Explanation:
oxygen, carbon dioxide:
a) facilitated diffusion
b) passive diffusion
c) phagocytosis
d) active transport
e) pinocytosis
Answers
Suppose you add a teaspoon of sugar to a cup of coffee, and the sugar molecules
disperse themselves throughout the hot coffee. What process has occurred?
Answers
Answer:
hola como estas como andas amiga?
Explanation:
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Approximately one third of the erythrocyte cell volume is composed of ____.
Answers
Answer: Hemoglobin
Explanation: Hemoglobin is a protein in red blood cells that carries oxygen. The hemoglobin test seeks to measure the amount of hemoglobin that a person can have. Hemoglobin tests are used to diagnose anemia or another blood disorder.
2-37a
could you make more than one line with those given instructions
Answers
4. Where do green plants get the energy they need?
From the water
From the dirt
From the air
From the sun
Answers
Answer:
Plants absorb water from the ground up through their roots. During photosynthesis, the energy from the sun splits the water molecules into hydrogen and oxygen.
Explanation:
I have a big brain
Answer:
the sun
Explanation:
to make glucose, sunlight is captured in pigments like chlorophyll, the substance that gives their leaves theirs color
What is the function of tRNA?
Answers
Answer:
tRNA'S (Transfer RNA) purpose is to add amino acid to the growing polypeptide chain.
Explanation:
I have a biology notebook full of information. :)
MUST BE 100-200 words, Will give brainiest and stars
What are other factors that could affect reaction time? Research and describe how the peripheral nervous system and the central nervous system work together in reacting to stimuli?
Answers
Answer:
Many factors have been shown to affect reaction times, including age, gender, physical fitness, fatigue, distraction, alcohol, personality type, and whether the stimulus is auditory or visual. Sensory neurons convert a stimulus into an electro-chemical signal, which flows the length of the
sensory neuron(s), then through a neuron or neurons of the central nervous system, and then
through the length of the motor neuron(s). Generally, motor neurons will cause a muscle to
contract or a gland to secrete a substance. Reactions that involve only the receptor, the spinal
cord, and the effector, are faster than those which involve processing in the brain. Reactions
which only travel to, through, and from the spinal cord are often called spinal reflexes or cordmediated reflexes; withdrawing one’s hand from a hot stove is an example of such a reflex.
In ‘simple reaction time’ experiments, there is only one stimulus and one response. Catching a
dropped stick, or hitting a button when a light changes are examples.
In ‘recognition reaction time’ experiments, there are symbols to respond to and symbols to be
ignored. There is still only one correct stimulus and one response. An example would be
catching a dropped stick with a word cue, while having to ignore other spoken words which are
not cues.
In ‘choice reaction time’ experiments, there are multiple stimuli and multiple responses. The
reaction must correspond to the correct stimulus. Typing a letter which matches a printed letter
prompt is an example of this type of experiment.
Explanation:
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What do carbohydrates, proteins, and fats have in common?
Answers
Answer:
Carbohydrates, proteins, and fats are all supplementallly neccesary energy reserves in the human body. Another shared characteristic they have is they are all macromolecules.
Explanation:
In terms of chemical composition:
Carbohydrates are polymers of monosaccharides, which are polyols (many OH groups) with an aldehyde or ketone functional group. Fats are esters of fatty acids and glycerol. Most carbohydrates are hydrophilic, smaller ones are soluble in water.
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What type of adaptation do most plants use?
Answers
Answer: This adaptation helps cacti reduce water loss by keeping the hot, dry wind from blowing directly across the stomata. The leaves and stems of many desert plants have a thick, waxy covering.
Explanation:
What are the two main goals of meiosis?
1)____________
2)___________
Answers
Answer:
1.to create multiple cells 2. gametes
Explanation:
i have plato and i have done this
Answer:
the goals of a meiosis is to produce haploiddaughtercells(garmets)and to generate variance.
When crude oil is distilled, it is separated into categories. What are those categories characterized by?
Answers
Answer:
Differences in their boiling points
Explanation:
When crude oil is distilled and separated into categories, the categories are characterized by the differences in their boiling points.
At different boiling points, each of the fraction will separate out.
Crude oil is made up of different fractions of hydrocarbons. As the chain length of the hydrocarbon increases, the volatility reduces and boiling point increases. Components with short carbon lengths rises out from the column first and are cooled and extracted. The categories are thereby, classified based on differences in their boiling points.Tammy is a forensic investigator examining a body at a crime scene. She notes that the body is stiff but still flexible. What does she know about the time of death?
A. It happened between 10 and 12 hours ago.
B. It happened over 24 hours ago.
C. It happened less than 8 hours ago.
D. It happened less than an hour ago.
E. It happened over 36 hours ago.
Answers
Answer:
A.
Explanation:
Answer:
C
Explanation:
Over the first eight hours, the body begins to stiffen but is still flexible.
2. The plant cell shown above is in which phase of mitosis?
A. triptophase
B. anaphase
C. interphase
D. prophase
E. metaphase
Answers
Answer:
Prophase? :3
Explanation:
:3
This type of inheritance pattern shows BOTH traits in possible offspringand is not a blending or intermediate
phenotype.
O a. incomplete dominance
O b. dominant pattern inheritance
O c. complete dominance pattern inheritance
O d. codominance
Answers
Answer:
The correct answer is - d. codominance.
Explanation:
Complete dominance is the pattern of inheritance where one allele masked the other allele completely in a heterozygous condition. Incomplete dominance is a pattern of inheritance where both the alleles blend or form intermediate phenotype in heterozygous condition.
The codominance pattern of inheritance is similar to the incomplete dominance but instead of making a blend of both alleles, it expresses both alleles together in patches or pattern.
The type of inheritance pattern that shows BOTH traits in offspring and is not a blending or intermediate phenotype is CODOMINANCE.
In genetics, codominance refers to the phenomenon by which both parent phenotypes for a given trait are simultaneously expressed together in the offspring.
Conversely, incomplete dominance occurs when the phenotypes of the two parents are mixed in the offspring in order to create a new intermediate phenotype.
Finally, complete dominance refers to the inheritance pattern by which a dominant allele completely masks the expression of the recessive allele in offspring.
In conclusion, the type of inheritance pattern that shows BOTH traits in possible offspring and is not a blending or intermediate phenotype is CODOMINANCE.
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An example of the way matter cycles through the bodies of living things
Answers
Answer: Matter is anything that has weight and occupies space. Matter cycling through the body of living things means matter passing from within. Plankton — microscopic organisms floating in the sea. A whale swimming in water is an example of matter cycling over the body of a living thing.
Explanation:
A specific type of bacteria reproduces through binary fission every two hours. If there are seven bacteria to begin with, how many bacteria will there be after four hours? Thanks!
Answers
Answer:
28 is your answer
Explanation:
i did it on edge
What type of molecule forms the antibodies found in the human immune system?
Answers
Answer:
An antibody (formally called immunoglobulin) is a large Y-shaped glycoprotein produced by B-cells and used by the immune system to identify and neutralize pathogens. Antibodies are produced by B cells, and are either secreted into circulation or remain expressed on the surface of the B cell.
Explanation:
Brainliest please?
Answer:
Immunoglobulin molecules are composed of two types of protein chain: heavy chains and light chains. Each immunoglobulin molecule is made up of two heavy chains (green) and two light chains (yellow) joined by disulfide bonds so that each heavy chain is (more...)
Explanation:
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Answers
Answer:
It's energy from the Sun that causes the water to evaporate in the first place. This gives the molecules their kinetic energy (or movement energy
Explanation:
Answer: The first one.
Explanation:
A concentration gradient is ________.
5 points
High concentration
Low concentration
A concentration difference
equal concentration
Answers
Answer: The process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles. The areas are typically separated by a membrane.
THE ANSWER IS A!!!
The divisions of the autonomic nervous system are distinctly organized. How is the sympathetic division arranged?
Answers
Answer:
This question is incomplete
Explanation:
This question appear incomplete because of the absence of options. However, the sympthetic nervous system is one of the two main distinct divisions of the autonomic nervous system. The sympathetic nervous system is also distinctly organized with two classes of neurons; some have there soma (cell bodies) within the spinal cord while some have there soma outside of the central nervous system in the ganglia.
Neurons are specialized cells responsible for transmitting information to some nerve cells, muscle cell and/or gland cells.
Layer of interior Earth Thickness Composition Solid or Liquid
Crust
Mantle
Outer Core
Inner Core
Complete the following questions using complete sentences and text evidence from the book
Figure 3 – page 205 The deeper that the swimmer goes, the greater the pressure on the swimmer from the surrounding water.
1. Compare and contrast – How is the water in the swimming pool similar to Earth’s interior? How is it different?
(Hint: Consider both temperature and pressure in your answer.)
The deeper you go the greater the pressure above you.
In the pool, the deeper you go the cooler its gets, inside the earth the deeper you go the hotter it gets. (temperature increases)
2. At what location in the pool would the water pressure be the greatest?
At the bottom of the pool.
3. How can iron filings provide evidence that a bar magnet has a magnetic field? (page 209)
4. What three processes or forces combine to set convection currents in motion? (last paragraph, page 210)
a.
b.
c.
5. Where do convection currents occur? (page 211)
6. How does convection cause movement of material and energy in Earth’s interior? (page 211)
Answers
Answer:
I don't no it ooo am so sorry
Explanation:
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Answers
Answer:
The answer would be C. amino acid, protein
Question 5 of 10
Nucleic acids and carbohydrates are both types of what?
A. Elements
B. Atoms
O O O O
OC. Proteins
O D. Macromolecules
SUBMIT
Answers
Answer:
D
Explanation:
It is D because I know ok?
Which of the following is the most efficient substance to complete cellular respiration?
Sugar
Fat
Protein
Necleic acid
Plz help
Answers
Answer:
Sugar
Explanation:
The correct answer would be sugar.
Respiration generally involves the metabolic breakdown of carbohydrates to generate energy (in the form of ATP). It is a multi-step process that can summarily be represented by the equation below:
[tex]C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + energy[/tex]
As a rule of thumb, the higher the respiratory quotient of a substrate, the higher the energy that will be generated if such a substrate is utilized for respiration. By definition, the respiratory quotient of a substrate is the ratio of carbon dioxide to oxygen produced or consumed to breakdown the substrate.
Carbohydrates are known to have the highest respiratory quotient while other molecules follow in varying degrees. Other substances apart from carbohydrates have to undergo one or two metabolic processes before they can enter the respiratory pathway, thereby reducing their efficiencies when compared to carbohydrates.