Answers
The given statement is true. Micelles, which are spherical structures made of bile salts, have both hydrophilic and hydrophobic regions.
In the digestive system, bile salts are secreted by the liver into the small intestine, where they help to emulsify fats in the chyme (the mixture of partially digested food and digestive juices). The hydrophobic ends of the bile salts surround the droplets of fat, while the hydrophilic ends face outwards and dissolve in the watery environment of the intestine. This creates tiny droplets of fat, known as micelles, that are more readily soluble in water.
The micelles can then be taken up by the enterocytes, the absorptive cells that line the small intestine, where they are further broken down by lipases and other digestive enzymes into fatty acids and monoacylglycerols. These molecules can then be absorbed into the bloodstream and transported to cells throughout the body for use as a source of energy or for other metabolic processes.
Overall, the ability of micelles to emulsify fats and dissolve in water is critical for the efficient digestion and absorption of fats in the small intestine.
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Related Questions
Look at the incomplete equation below. What does Ek represent?
Answers
In the given equation, Ek represents the kinetic energy of an object.
Kinetic energy (Ek) is a form of energy associated with the motion of an object. It is dependent on both the mass (m) and the velocity (v) of the object.
The equation Ek = (1/2)m\(v^2\) represents the formula to calculate the kinetic energy of an object.
The symbol "Ek" is commonly used to represent kinetic energy in scientific calculations and equations. By plugging in the values of mass and velocity into the equation, one can calculate the amount of kinetic energy possessed by the object.
The kinetic energy of an object increases with both its mass and velocity. As the mass increases, the object has more particles in motion, contributing to higher kinetic energy.
Similarly, as the velocity increases, the speed at which the object moves also increases, resulting in greater kinetic energy.
Therefore, understanding and calculating kinetic energy is important in various scientific and engineering applications, such as studying the movement of objects, analyzing collisions, or designing efficient systems.
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Question
Look at the incomplete equation below. What does Ek represent?
Ek =----- x m x v2
Why is mitosis important to unicellular organisms?
Mitosis is the way in which two cells come together to form daughter cells.
Mitosis is the way in which different types of cells are created.
Mitosis is the way in which cells become larger in size.
Mitosis is the way in which new cells are created.
Answers
Organelles within a cell interact as a system to maintain homeostasis. The destruction of which of the following organelles would cause the MOST damage to the cytoplasm of a cell? А. ribosome b. chloroplast c. cell membrane D. Golgi apparatus
Answers
Answer:
cell membrane
Explanation:
cuz
The destruction of the organelle known as cell membrane would cause the
most damage to the cytoplasm of a cell.
The cell membrane is a covering in cells which help to protect the
cytoplasm .The cytoplasm contains most of the organelles such as
lysosomes, ribosomes etc.
The cell membrane also controls the substances which enters and leaves
the cell and destroying it will lead to attack on the cells from other
organisms or a higher concentration which may lead to shrinking and death.
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How can scientists use owl pellets to study the skeletal systems of small mammals in a specific ecosystem
Answers
Answer:
They use them so that they can see what type of organisms live there.
Explanation:
Summary of events at neuromuscular junction. Place the following events in their proper sequence by numbering 1 to 10 next to event:
a. Acetylcholine is released into the synaptic cleft.
b. Action potential propagates along the sarcolemma and down the T Tubules. 1
c. Synaptic vesicles fuse to the membrane of the axon terminal.
d. Motor end plate becomes depolarized. e. Action potential is initiated on the sarcolemma.
f. Action potential arrives at the axon terminal.
g. Calcium ions are released from the terminal cisternae.
h. Acetylcholine binds to receptor sites on the motor end plate.
i. The muscle cell contracts.
j. Calcium ions enter the axon terminal.
Answers
The proper sequences for the events at neuromuscular junction are:
Action potential arrives at the axon terminal (f)Synaptic vesicles fuse to the membrane of the axon terminal (c)Acetylcholine is released into the synaptic cleft (a)Acetylcholine binds to receptor sites on the motor end plate (h)Motor end plate becomes depolarized (d)Action potential is initiated on the sarcolemma (e)Calcium ions enter the axon terminal (j)Calcium ions are released from the terminal cisternae (g)Action potential propagates along the sarcolemma and down the T Tubules (b)The muscle cell contracts (i)What is a neuromuscular junction?A neuromuscular junction is a specialized synapse between a motor neuron and a skeletal muscle fiber. It is the point where the nerve terminal of a motor neuron meets the motor end plate of a muscle fiber, and where chemical transmission of nerve impulses to muscle fibers occurs.
When a motor neuron is stimulated, it releases the neurotransmitter acetylcholine, which binds to receptors on the motor end plate and initiates a muscle contraction. The neuromuscular junction is essential for voluntary movement and overall muscle function.
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What motif of blood in the play highlights the destructive nature?
Answers
The blood motif in the play highlights how terrible nature retaliation might be. Because Queen Elizabeth lacked an heir, Shakespeare's audience would have been interested in Hamlet's concerns about succession.
Immoral actions lead to regret. Regret comes after guilt, and like guilt, a deep blood stain is very difficult to get rid of. Macbeth and Lady Macbeth are plagued by this "stain" of guilt, which finally destroys them. The term "nature" can refer to a wide variety of living things, such as plants nature and animals, as well as, in some cases, blood to the actions of inanimate objects. It can also refer to the processes by which particular kinds of things, such as the weather and the Earth's nature geology, exist and change on their own.
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The mechanical advantage of a machine is the number of times it a. multiplies the resistance force. b. multiplies the effort force. c. changes the direction of the effort force. d. changes the direction of the resistance force.
Answers
The force or speed of a machine is multiplied by its mechanical advantage. It is a figure (without units) that indicates how many times the apparatus multiplies a force (or speed). I. M. A. An ideal machine's mechanical advantage is the optimal mechanical advantage. Thus option A is correct.
What is the mechanical advantage of a machine?The ratio of load to effort is referred to as a machine's mechanical advantage. The efficiency of a machine is due to its mechanical advantage. Effort/Load = Mechanical Advantage. The mechanical advantage M A is equal to F 0 F I where F 0 is the output force and F I is the input force.
Therefore, multiplies the resistance force.
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After 42 days, 2g of phosphorus-32 has decayed to 0.25 g. What is the half life of phosphorus
Please add work!
Answers
The half-life of phosphorus-32 (P-32) is 14.8 days.
How do we calculate?N(t) = N₀ * (1/2)^(t / T₁/₂)
N(t) is the amount of the substance remaining at time t
N₀ is the initial amount of the substance
t is the elapsed time
T₁/₂ is the half-life of the substance
Initial amount (N₀) = 2 g
Final amount (N(t)) = 0.25 g
Elapsed time (t) = 42 days
We can rearrange the formula to solve for the half-life (T₁/₂):
(1/2)^(t / T₁/₂) = N(t) / N₀
t / T₁/₂ = log₁/₂(N(t) / N₀)
t / T₁/₂ = log(N(t) / N₀) / log(1/2)
t / T₁/₂ = log(0.25 g / 2 g) / log(1/2)
t / T₁/₂ = log(0.125) / log(1/2)
t / T₁/₂ = -log(8) / log(2)
T₁/₂ = -t / log(8) * log(2)
T₁/₂ = -42 days / log(8) * log(2)
T₁/₂ = 14.8 days
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The diagrams represent some of the systems that make up the human body. Which row in the chart below correctly identifies the main function of these systems? (don't choose the chart, read it)
answer choices
Image
O 1
O 2
O 3
O 4
Answers
Option 2 is Correct. The six stages of digestion include ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and feces. The mouth is where some chemical digestion happens.
The challenging process of digestion is how food is transformed into nutrients that the body uses for energy, cellular growth, and survival. Making trash for elimination is another step in the digesting process. The body consumes nutrients for energy, growth, and cell repair, and this is accomplished through digestion.
Digestion involves 4 steps:
devour food.Make the food into small, manageable bits.Move the microscopic particles out of the digestive tract and the remainder of the body to help the body absorb nutrients.Anything your body can't use, or waste, should be disposed of.Learn more about human body Visit: brainly.com/question/20896519
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Correct Question:
The diagrams represent some of the systems that make up the human body. Which row in the chart below correctly identifies the main function of these systems? (don't choose the chart, read it)
answer choices
Image
O 1
O 2
O 3
O 4
Why is respiration essential for all organisms?
Answers
Explanation:
to obtain energy..........
when does a crab eaten by the worm?
Answers
Answer: When the crabs reach 2 to 4 years of age, they move to deeper water where they join the adult crabs that eat worms
Explanation:
Answer: 2-4 years of age
Explanation: When a crab turns 2-4 years old, they begin to eat worms and other foods that adult crabs consume.
why are mutations considered important in evolution
Answers
Mutations are considered important in evolution because they are the ultimate source of genetic diversity.
Mutations are alterations in the sequence of an organism's DNA, caused by radiation or toxins in the environment. They can also form spontaneously during DNA replication.Mutations can have a variety of impacts. These are frequently dangerous or have little or no impact. However, changes in DNA sequence can occasionally be helpful to the organism.Beneficial mutations that offer a survival benefit or reproductive success are more likely to be passed on to subsequent generations, increasing their frequency in the population over time. This accumulation of favorable mutations is a driving factor in the process of evolution.Without mutations, there would be no supply of new genetic information, and evolution would be greatly hampered.
Answer:
Mutations are one of the fundamental forces of evolution because they fuel the variability in populations and thus enable evolutionary change.
WORLD POPULATION GROWTH
20.000
Millions of people
10,000
World
5,000
2.000
Asia
Africa
1,000
Europe
500
200
United States,
Mexico,
Canada, & Greenland
100 Central America,
50 Caribbean Islands, &
South America
20
Oceania (Australia &
nearby islands in the Pacific)
10
1950
1960
1970
1980
1990
2000
2010
2020
2030
Year
2040
2050
h
Based on the information in the graph, which region's population is currently
growing the least?
Answers
Answer:
Europe
Explanation:
A P E X
The region that currently has the least population growth is the region whose population increases by the least amount as time increases.
Population growthThe term population growth refers to the increase in population of people within a geographical region as time increases. In many cases, the population growth may be shown in;
ChartsGraphsTablesThe question here is incomplete. However, the region that currently has the least population growth is the region whose population increases by the least amount as time increases.
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The function of the hepatic portal circulation is to ________. The function of the hepatic portal circulation is to ________. return glucose to the general circulation when blood sugar is low carry toxins to the kidney for disposal through the urinary tract distribute hormones throughout the body collect absorbed nutrients for metabolic processing in the liver
Answers
Answer:
The correct answer is ''collect absorbed nutrients for metabolic processing in the liver.''
Explanation:
Portal circulation is called that system that is between two large capillary beds, represented by the gastrointestinal organs, pancreas and spleen on the one hand, and the liver on the other. Hence, any venous system of the organism that is located between two capillary territories is called "portal system".The hepatic portal vein collects the deoxygenated blood from the gastrointestinal system, spleen and pancreas, this blood is venous and comes deoxygenated, in addition to being loaded with the nutrients absorbed in the digestive process, so it is a blood subjected to a high overload, but that quickly, thanks to its distribution through the liver, it will be bypassed to various chemical processes to extract a large part of the nutrients from it, and purify and eliminate toxins.
The function of the hepatic portal circulation is to collect absorbed nutrients for metabolic processing in the liver. Therefore, option D is correct.
The hepatic portal system is also known as the hepatic portal circulation or portal venous system. It is a specialized network of blood vessels that carries blood from the gastrointestinal tract, spleen, and pancreas to the liver. It plays a crucial role in directing nutrient-rich blood from the digestive organs to the liver for processing, storage, and detoxification before it is distributed throughout the rest of the body.
The hepatic portal system allows the liver to regulate the composition of blood coming from the digestive organs before it enters general circulation. Thus, option D is correct.
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Which of the following terms describes the tendency of plant stems and flowers to turn toward sunlight?
geotropism
chemotropism
gravitropism
phototropism
Answers
Answer:
phototropism
Explanation:
The term that describes the tendency of plant stems and flowers to turn toward sunlight is phototropism.
Answer: The correct answer is phototropism
Explanation: This answer has been confirmed correct.
Phototropism is the tendency of plants to turn toward sunlight.
I need help putting these in order!
Answers
Based on the information provided, the order in which the events described took place is E, A, B, C, F, D.
How did Earth and life formation occur?In this sequence of events, Earth was formed first, this occurred as Earth cold down and therefore it became solid. Despite this, the existing atmosphere was different than the one we have now as it was rich in carbon dioxide, this led to oceans that were rich in the same component.
Due to this, the first life forms relied on carbon dioxide and release oxygen, which later led to an increase in the oxygen levels and different life forms.
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Which of the following correctly describes one way that photosynthetic plants are involved in the carbon cycle?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Photosynthetic plants can move carbon from the atmosphere into an ecosystem’s food web.
(Choice B)
B
Photosynthetic plants move carbon-based molecules between consumers in an ecosystem.
(Choice C)
C
Photosynthetic plants break down the remains of organisms and release carbon dioxide into the atmosphere.
Answers
can someone help me
Answers
You need to show us the previous questions and reading material, or we won't understand the question...
What is the general structure and function of epithelial tissue?
Answers
Answer:
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
when a car rolls straight down a steep hill, what happens tot he car
Answers
Answer:
Its speed increases.
Explanation:
When a car rolls straight down a steep hill, its speed will change suddenly. If the path is normal as before, then it may move with constant speed or somewhat hight speed i.e. it moves non-uniformly. But down a steep hill, the speed of the car increases.
A student measures the length of a root growing from a sprouted seed. What
determines whether the measurement is precise?
O
A. A precise measurement can be repeated multiple times.
B. A precise measurement is displayed in the largest possible units.
C. A precise measurement contains the fewest significant figures.
D. A precise measurement is close to the actual value.
Answers
A precise measurement can be repeated multiple times. The correct option is A.
What is precise measurement?Precision, also known as reproducibility or repeatability, is the extent to which repeated measurements under identical conditions yield the same results.
Precision is determined by standard deviation, which is the amount and frequency with which measurements differ. If a standard deviation is high, then it suggests low precision.
A student measures the length of a sprouted seed's root. A precise measurement can be repeated as many times as necessary.
Thus, the correct option is A.
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what causes the density of ocean water to be different from fresh water?
A: An increase in wind speed
B: A decrease in salinity
C: An increase in temperature
D: An increase in salinity
Answers
Answer: The answer would be D
Explanation: The salinity would change the density of ocean water due to how the ocean water is heavily diluted with salt
in the video, bursting the bacterial bubble, the speaker mentions that the use of antibacterial products increase your chance of getting sick
Answers
Several conditions may result from inadequate calcium intake, including the ones that follow: Osteoporosis, which results in brittle, weak bones and raises the chance of falling.
Children who with rickets develop weak, brittle bones. Having osteocalcin results in soft bones in both children as well as adults.
According to new research, antimicrobial toothpaste, mouthwashes, soaps, as well as hand washes were encouraging the growth of superbugs that really are resistant to antibiotics. Triclosan, a popular antibacterial ingredient included in consumer products, actually strengthens harmful germs so they may resist treatment instead of destroying them.
According to new research, antimicrobial toothpaste, mouthwashes, soaps, as well as hand washes were encouraging the growth of superbugs that really are resistant to antibiotics. Triclosan, a popular antibacterial ingredient included in consumer products, actually strengthens harmful germs so they may resist treatment instead of destroying them.
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The term ______ refers to all chemical reactions occurring in the body.
respiration
assimilation
digestion
metabolism
Answers
Answer: metabolism
Explanation:
Many people think that metabolism is just the process of creating energy, but it is so much more than that. However, any chemical process that occurs in the body with the idea of being life-sustaining is considered metabolism. The rate of metabolism varies from person to person, with some people having faster metabolism than others.
The term metabolism refers to all chemical reactions occurring in the body. Therefore, option D is correct.
Metabolism contains a wide range of processes involved in the conversion of nutrients into energy, the synthesis of molecules needed for cellular activities, and the breakdown of substances for elimination.
Metabolism is of two types and that is anabolism and catabolism. Catabolic reactions involve the breakdown of larger molecules into smaller ones, releasing energy in the process. Anabolic reactions involve the synthesis of larger molecules from smaller components, requiring energy input.
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3.Each onion plant begins as a single cell containing 16 chromosomes. How many chromosomes are present in each of the cells that you observed
Answers
Answer:
In somatic cells, 16 chromosomes are present whereas in sex cells, there is 8 chromosomes.
Explanation:
In the somatic cells, the replication of chromosomes occur and after the replication is completed, the parent cell is divided into two daughter cells having double number of chromosome by each daughter cell i.e. 16 chromosomes while on the other hand, in sex cells, first the parent cell divides into two daughter cells and after sometime, these daughter cells are again divided having total four daughter cells each receives half number of chromosomes i.e. 8 chromosomes.
Why are surface antigens on sperm cells not recognized as “self,” and why do they require a blood-testis barrier to prevent antibody formation?
Answers
Answer: Sperm cells are recognised as foreign cells by the immune system and requires blood testis barrier to prevent antibody formation.
Explanation:
Shortly after birth, the immune system of an individual starts to recognize the surface antigens of its body cells as 'self' and avoids forming an antibody against it. Spermatozoa (sperm cells) are formed at puberty, between the age of 10 and 14. Hence, the body immune system will recognise the antigen on the sperm cells as 'non-self' and stimulate antibodies against it. This is prevented by the blood testis barrier.
The blood testis barrier which are formed from the Sertoli cells at the seminiferous tubules helps in the isolation of the sperm cells and protects it from immune surveillance. This barrier also prevents sperm cells from coming in contact with blood.
Sperm cells formed during puberty hence immune system recognize them as non-self. Immune attack is prevented by the blood-testis barrier.
Blood-testis barrier:
It is the barrier that is made from the Sertoli cells in the seminiferous tubule. This helps to isolate the sperm cells from the immune surveillance. This also protects sperm cells to come in contact with blood.
Sperm cells formed during puberty hence immune system recognize them as 'non-self'.
Therefore, Sperm cells formed during puberty hence immune system recognize them as non-self. Immune attack is prevented by the blood-testis barrier.
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what is an organism's phenotype?
A.the organism's complete genetic makeup
B.the organism's physical traits
C.the organism's karyotype
Answers
A. the organism's complete genetic makeup
A
Explanation:
phenotype, all the observable characteristics of an organism that result from the interaction of its genotype (total genetic inheritance) with the environment.
What a person actually looks like
A. genotype
B. phenotype
C. dominant
D. recessive
Answers
Phenotypes is the physical features expressed of an organism.
What social and environmental factors affect human population size?
Answers
Answer:
Many factors influence the size of a population. Food, water, shelter, predation, and density are all things that can allow a population to grow or cause it to decline.
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Amoeba Sisters Video Select Recap: Mitosis vs. Meiosis Comparison
Could i get help with this?
Answers
Answer:
Both mitosis and meiosis occurs in Amoeba.
Explanation:
Both mitosis and meiosis occurs in Amoeba. Those kinds of Amoeba that reproduces through asexual reproduction uses mitosis in which a single parent Amoeba cell is divided into two identical daughter Amoeba cells while on the other hand, Myxamoeba reproduce through sexual reproduction in which meiosis cell division is used. In this type of reproduction, the daughter Amoeba is different from their parents Amoeba.