help asap please!
science
Complete the table below to show the difference between active and passive transport. Put a “X” in boxes that satisfy the statement.
Answers
Answer:
Active transport:
requires energymolecules move from low to high concentration sidesNa+ and K+ move by active transportSimple diffusion:
molecules move from high to low concentration sidesmolecules pass between lipids small non-polar and polar moleculesFacilitated diffusion:
molecules move from high to low concentration sidesinvolves channel proteinsmove large moleculesExplanation:
Simple Diffusion is the pathway of only small molecules that freely move through the membrane by momentary openings produced by the lipids' movements. Diffusion is a slow process that requires short distances and pronounced concentration gradients to be efficient. An example of diffusion is osmosis by which water is the transported molecule. Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient. Glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.Simple diffusion and facilitated diffusion are both passive transport processes because they only depend on electrochemical gradients, so they do not need any energy to occur.
Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen. Molecules move from the lower concentration side to the higher concentration side of the membrane. Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential. An example of molecules moved by active transport are the Na and K.
In Active transport, molecules or ions move against the concentration gradient by using energy from ATP.
What is Membrane transport?The transfer of molecules across the plasma membrane into or out of the cell.
There are two types of membrane transport,
1. Passive transport:
When molecules move along the gradient. It can be of two types,
Simple diffusion (via phospholipids)Facilitated diffusion (via channel protein)2. Active transport:
When molecules move against the concentration gradient, they require energy. Energy is given by ATP.
Therefore, in Active transport, molecules or ions move against the concentration gradient by using energy from ATP.
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Related Questions
Which principle allows us to assign dates to events on the geologic time scale?
faunal succession
extinction
radioactive decay
relative dating
Answers
The principle that allows us to assign dates to events on the geologic time scale is radioactive decay. Therefore, option (C) is correct.
What is radioactive decay?This theory is based on the observation that certain isotopes of elements are inherently unstable and, as a result, decay over time, giving rise to the formation of new isotopes or elements. Scientists are able to determine the age of a sample by measuring the ratio of parent to daughter isotopes in the sample. This, in turn, enables them to assign dates to events on the geologic time scale.
The method of determining the age of rocks, minerals, and other geological materials is known as radiometric dating, and it is utilized extensively in the field of geology as well as in other earth sciences.
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functions of the fine cytoplasmic filaments
Answers
Answer:
Striated, smooth, and cardiac muscle cells contain vast numbers of cytoplasmic filaments that function during the contraction of these cells. ... The contraction of striated muscle cells shortens the muscle, which then moves the skeleton.Which of the following would NOT be listed on the Taxonomy scale for living organisms?
Mushrooms
Plankton
Algae
Flu Virus
Answers
Answer: flu virus
Explanation:
Answer:
Flu virus
Explanation:
A virus is not made of cells and is not considered as an organism.
I hope this helped!
20 points real answers please and thank you
The picture below shows a satellite image of a sea. (1 point)
Which of these statements is correct about the sea at Location A and Location B?
The waves at Location A are abnormally low.
The waves at Location B are abnormally low.
The waves at Location A move at high speed.
The waves at Location B move at high speed.
Answers
Answer:
Its C hope this helps! if its wrong let me know
Erosion and deposition work together to
shape Earth's surface. Which of the following
statements best describes deposition?
A. A river flows into an ocean slows and
drops sediment.
B. Rushing water beats against the rocks at
the base of a waterfall.
C. A rushing river spreads out and forms a
wide river valley.
D. Sediment is carried away from the outer
bank of a river.
Answers
Answer:
A
Explanation:
Opsins are proteins that are found in the light-sensing cells in the human eye. Different opsin proteins are sensitive to different colors of light. The instructions for creating the type of opsin sensitive to red light are found on a gene known as OPN1LW, which is on the X chromosome. A genetic mutation in the OPN1LW gene can lead to a form of color blindness that affects a person's ability to detect red light. However, women have two copies of the X chromosome, and they have normal color vision if only one copy contains the mutation. Why do women who carry one copy of the mutated gene still have normal color vision?
Answers
Answer:
Women who carry one copy of the mutated gene still have normal color vision because they have another copy, which is not mutated, in the other X chromosome that will be the dominant one. As a result, the women are carriers of the mutated gene but not color blind.
Explanation:
Colorblindness is a sex-linked mutation. A woman has two X chromosomes, while a man has one X chromosome and one Y chromosome. The mutated gene that causes color blindness is on the X chromosome, and it is OPN1LW. So if a woman has one mutated OPN1LW in one of her two X chromosomes, the OPN1LW gene in the other X chromosome will be the dominant one stopping the woman from being colorblind.
In the case of men, as they only have one X chromosome, if there is a mutation on the OPN1LW in the X chromosome, the men will be colorblind because there is no extra copy of the gene, as it is in women.
The maintenance of a self-sustaining ecosystem requires a
A.soil that is acidic
B.constant temperature
C.greater numberof herbivores than producers
D.cycling of materials between organisms and their environment
Answers
which of the following is NOT a natural resource?
A gold
B water
C oil
D fire
Answers
Answer:
D
Explanation:
Fire is man made because for there to be fire you have to strike a match or use other man made sources
please help me this is grade 7 work btw
Answers
what are some functions of sensory protein?
Answers
Answer:
Explanation:
These proteins, known as growth factors, are signals that stimulate cellular functions such as growth, proliferation, healing and differentiation. In the developing human spinal cord, BMPs are required for the formation of neurons.
Which statement best describes evolution?
Answers
Answer: Traits acquired during a lifetime are passed to offspring.
Answer:
Traits acquired during a lifetime are passed to offspring
Explanation:
Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection, so the other answes don't make sense
Circle the letter of each sentence that is true about the cell wall.
a. Cell walls are made of cellulose.
b. Plant cells have cell walls.
c. Animal cells have cell walls.
d. Water and oxygen cannot pass through the cell wall
Answers
Answer:
D.Water and oxygen cannot pass through the cell wall
Explanation:
not sure
hellpppp plzz
Water molecules at the surface of a body of water tend
to pull inward and resist force which is why some insects
look like they are floating on top of water.
a) cohesion
b) density
c) surface tension
d) adhesion
Answers
Answer:
surface tension
hope this helps, plz mark me as brainliest.
Answer:
c) surface tension
Explanation:
Surface tension is the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
Have a nice day! ^-^
Plant Growth
50
40
Growth (cm)
20
10
0
8
40
16 24 32
Temperature (C)
Which of these would be the best conclusion regarding the experimental results shown?
® This species of plant grew best between 18°C and 26°C
Plants will not grow above 26°C
The tallest this species of plant will ever grow is 50 cm
The ideal temperature for all plant growth is 26°C
Answers
Answer:
I think it is F but i am not sure hope it helps
In the United States, there has been an increase in the number of people infected by mosquito spread diseas that were previously found only in countries south of the United States. Scientists want to investigate the cause of the increase in mosquito spread diseases. Scientists have predicted that the mosquitos carrying disease have moved further north as global temperatures have increased. Which questions would help investigate how the new mosquitoes are affecting the ecosystems of the United States ? Select all that apply. AHow much money has been spent to fight the diseases caused by these mosquitoes across the globe? B. How have the food webs in the United States changed as a result of the new mosquitoes? the natural predators to the mosquitoes also migrated north? What types of organisms are preying on the mosquitoes in their new habitats? E Are places in the United States using more pesticides to kill the new mosquitoes? If so, how are these pesticides impacting others in the ecosystems
Answers
Answer:
What types of organisms are preying on the mosquitoes in their new habitats?
Explanation:
I think it is all the answers except for What types of organisms are preying on the mosquitoes in their new habitats? this is because when a new species comes to an area it does not have anything to prey on it
could someone answer 3, 4 and 5 for me please? i’ll give you brainliest answer or whatever :).
Answers
Answer:
2. In the natural environment, plants produce their own food to survive. As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called "aerobic respiration".
3. Both cellular respiration and fermentation are process that break down food and convert the chemical energy stored in the food to ATP molecules. Both these processes begin with glycolysis and convert glucose to pyruvate. ... Fermentation only uses the latter.
4. Energy is usually absorbed during photosynthesis.
Photosynthesis is the process whereby green plants manufacture their food in the presence of sunlight(energy source), water and carbon dioxide:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
↑
Sunlight
Sunlight supplies solar energy that is used to converted the chemical species into glucose that stores chemical energy.
Respiration is the reverse of photosynthesis. In this reaction, oxygen gas combines with glucose to produce energy with water and carbon dioxide as by products. The energy stored in photosynthesis is released during respiration.
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O ↑ energy
Explanation:
Answer:
2. The process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. As with photosynthesis, plants get oxygen from the air through the stomata.
3. Both cellular respiration and fermentation are process that break down food and convert the chemical energy stored in the food to ATP molecules.
4. Energy is usually absorbed during photosynthesis.
Photosynthesis is the process whereby green plants manufacture their food in the presence of sunlight(energy source), water and carbon dioxide:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
↑
Sunlight
Sunlight supplies solar energy that is used to converted the chemical species into glucose that stores chemical energy.
Respiration is the reverse of photosynthesis. In this reaction, oxygen gas combines with glucose to produce energy with water and carbon dioxide as by products. The energy stored in photosynthesis is released during respiration.
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O ↑ energy
Tell me a brief summary of what happens in meiosis
**will mark brainliest**
Answers
Meiosis is a special type of cell division, which occurs only in the germ cells during the process of development and maturation to form gametes. It consists of two successive cell divisions,
Meiosis 1 : First meiotic division, that reduces the NUMBER of chromosomes i.e. the parent cell is diploid(46 Chromosomes) and the daughter cells are haploid(23 Chromosome). It also causes genetic variation in the haploid by cross linkage.Meiosis 2 : Second meiotic division (Meiosis II) starts with two haploid parent cells and ends with four haploid daughter cells. Meiosis 2 like Meiosis 1, does not reduce the NUMBER OF CHROMOSOME that means the forming 4 daughter cells are haploid and their number of chromosome remains the same as the parent. BUT Haploid cells that go into the meiosis 2 have MORE AMOUNT OF CHROMOSOME THAN USUAL, thus MEIOSIS 2 REDUCES the amount of chromosome rather than the number of chromosome.The DNA of the primitive germs cells is replicated prior to the meiosis 1 only and there is no replication of DNA before Meiosis 2. The four final cells reulting from the two meiotic divisions are not only haploid(i.e. containing 23 chromosome) but they are also containing 1n amount of DNA so that when the gametes fuse together forming a zygote, both the amount and number of chromosome and DNA remains SAME.
_____________________________________[tex]\huge{\text{Why is Meiosis Important?}}[/tex]Meiosis is essential for the sexual reproduction of eukaryotic organisms because it enables genetic diversity through recombination, and the repair of genetic defects.
It contributes in genetic reassorment which ensures the genetic diversity in the offsprings. The genetic reassortment takes place by following two mechanisms:
During the prophase of meiosis 1, crossing over of genetic material between the homologous maternal and paternal chromosomes takes place which causes exchange of DNA fragments between the chromosome resulting is genetic diversity.During the anaphase of the first meiotic division, there is random distribution of maternal and paternal homologous chromosomes among the daughter cells which are produced as a result of meiotic division._____________________________________Best Regards,'Borz'A scientist is studying the Bear Creek swamp, which is wet most of the year and is filled with such animals as alligators, beavers, and numerous kinds of fish.
What kind of ecosystem is the Bear Creek swamp?
wetland
pond
stream
estuary
Answers
Answer:
Wetland
Explanation:
It is wet most of the year
There is also alligators, which tend to be there commonly.
AND in the start of the question, it says swamp, swamps are the most similar to wetlands.
2. The genetic material of a virus can either be_____ or ______
Answers
Answer:
RNA or DNA
Explanation:
Answer: RNA or DNA
Explanation:
What percent of our overall global electricity use is accounted for by the internet and computer usage?
A.20%
B.5%
C.10%
D.50%
Answers
Answer:
I think it's 10% sorry if i'm wrong
Explanation:
Answer:
50 percent
Explanation:
A scientist wants to observe the structure that joins a cell of a neighboring cells. How should the scientist observe the detailed structure of the cell?
Answers
Answer:
The images obtained from the electron microscope provides key knowledge regarding the structural basis of cell function and various diseases associated with the cells. Thus, if a scientist desires to see the structure, which binds a cell with the adjacent cells, he or she should use an electron microscope.
Explanation:
please mark this answer as brainliest
The ungiven term that represents the elements in DNA in the figure is
Answers
Select the true statement.
Cells, tissues, and organs all work together to make up
organ systems.
The smallest and simplest systems within organ systems
are the organs.
Organ systems work independently from the rest of the
body.
PLEASE HELP ILL GIVE BRAINLEST
Answers
Clouds form when water vapor _________.
A. evaporates
B. condenses
Answers
Answer:
B. condenses
Explanation:
Clouds form when water vapor condenses.
Which catastrophic event would most likely result in trees being knocked over and the
disappearance of most of the plants and animals along a narrow path in a forest
ecosystem?
Answers
Answer:
tornado
Explanation:
earthquakes dont cause for the disappearance of most of the plants and animals, flash floods are widespread, between volcanos and tornadoes, tornadoes fits the description better.
The catastrophic event that resulted in trees being knocked should be considered the tornado.
What is a tornado?It is the column that contains the small diameter with respect to the violence that rotated the air developed. It arises the thunderstorms at the time of spring and summer in the mid-latitude.
Also, the earthquake does not leads to the disappearance for mostly plants and animals.
hence,
The catastrophic event that resulted in trees being knocked should be considered the tornado.
Learn more about ecosystem here: https://brainly.com/question/18167856
9. Give an example of a trait and explain how a genetic trait is passed down from parent to offspring in
animals.
Answers
Answer:
Inherited traits are passed down to offspring from parents through their genes. Inherited traits are things that are genetic and with an animal from birth. Both of their parents pass these traits to them, and they become a mix of their parents. Hair color, eye color, fur patterns are all examples of inherited traits.
Explanation:
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Scientists are concerned about a decrease in global biodiversity due to extinctions of organisms now and in the future. Scientists know about a mass extinction that wiped out the dinosaurs in a very short time. Describe a possible cause of this mass extinction and two consequences that may give scientists cause for alarm about the possibility of future mass extinctions.
Answers
Answer:
Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes. One famous mass extinction event is the one that lead to the extinction of dinosaurs, 65 million years ago.
Explanation:
Measurement needed in children's wear?
need kopo ng answer agad:)
Answers
Answer:
Height
Chest/Bust
Waist
Hips
Inside Leg
Rasheeda made a model of a plant cell and labeled parts of the cell that are not found in animal cells. Which other part of the cell should Rasheeda label
Answers
Answer:
Cell wall, chloroplasts, plastids, and a central vacuole.
Explanation:
Rasheeda has to label cell wall, chloroplasts, plastids, and a central vacuole because these parts are not present in the animals cell. The outer boundary of animal cell is cell membrane whereas the outer boundary of plant cell is cell wall. The plant cell has chloroplast due to its function of making their own food with the help of sunlight so that's why it is not present in animal cell which can't make their own food. Plastid is also absent in animals cell and present in plant cell which is responsible for manufacturing and storing of food. Both plant cell and animal cell has vacuole but different in their size and location in the cell.
read this excerpt from "types of volcanoes." according to the context clues, which term best defines the underlined word? cinder cones are formed when small pieces of lava, called cinders, fly out of a vent and land around it. the cinders then cool from molten rock into solid rock. o liquid o heavy o black o frozen
Answers
Answer:
[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{:black}\ [/tex]
Answer:
Your answer is A. liquid.
Explanation:
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