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Related Questions
Charlotte and her husband Frederick have genetic testing done. They both have a normal karyotype. The biggest difference between their karyotypes is _____.
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In the simulation, when protein molecules were evenly distributed on both sides of the membrane, was the solution isotonic, hypertonic, or hypotonic? Which direction was water flowing?
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Answer:
1. Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.
2.
a. A semipermeable membrane allows some substances to pass through it.
b. The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.
3.
a. The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.
b. In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.
4.
a. The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.
b. In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.
5.
a. A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.
b. If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.
Explanation:
When protein molecules were evenly distributed on both sides of the membrane, the solution is isotonic.
In isotonic solution the concentration of solutes on side remain same .There is no net gain or less of water in isotonic solution.What will be the direction of water flow in isotonic solution?The water will flow freely across the cell membrane without any change in the concentration of solutes.In isotonic solution the cell neither shrink nor swell because the water concentration will remain same.To know more about isotonic solution here
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What is the first step in building a solar system from a solar nebula?
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Answer:
An explosion disturbs the gas and dust in the nebula.
Explanation:
hope it helps
Compare the movement of oxygen and carbon dioxide across the cell membrane
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"As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. ... Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell."
Definition of Salt Water
(Impact on Weather)
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The thickness of seawater is an element of saltiness and temperature, Lagerloef clarified. Saltier water is heavier and will sink further in the sea, where it joins flows that course water all throughout the planet. ... Stable salt densities in the seas keep the world's environment in balance, researchers accept.
hope this helps:)
Answer:
Salt weathering or Salt Weather is a form of mechanical or physical weathering of rock. ... The salt derives from an external source (capillary rising ground water, eolian origin, sea water along rocky coasts, atmospheric pollution). Salt weathering is favoured by dry conditions, such as are found in warm and cold (arctic) arid climates.
Explanation:
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a botanist scrapes pollen off a flower of one plant and then uses it to pollinate the flower of another plant. what can be scientifically conclude about their offspring
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What is the name of the macromolecule that makes up the MAJORITY of the cell membrane?
A. lipids
B. carbohydrates
C. proteins
D. nucleic acids
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Answer:
A. lipids
Explanation:
Lipids is the macromolecule that makes up the majority of the cell membrane.
You, suddenly grown very small because you drank too much TinyMe, are standing between
two cells in the trunk of the oak tree behind your apartment. Your feet are stuck in
After you free your feet, what is the first barrier that you must cross to enter any of the
surrounding cells?
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Answer:
I would say it's pectin secondary cell, but don't trust my word
How are many unicelled organisms. In addition , anything less than a cell is not alive. What do these statements imply about cells?
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Answer:
The correct answer is - cells are the basic unit of life.
Explanation:
As it is given and also known that there are many unicellular organisms exists and they do not require the multicellular body to live their life or survival. Multicellular organisms are made up of various cells joined together to form a complex organization.
Anything less than a cell can not live or survive and also do not called a living entity. So, from above we can say the basic unit of the life is cell.
How many amino acids must be obtained in the diet because they cannot be made by the body? A. 2 B.5 C.10 D.20
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Answer: C
Explanation: Just is.
#5 help will markbrainliest
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Answer:
after nutrients are absorbed during digestion,the excretory system removes faeces through the rectum. these work together to maintain oxygen homeostasis.
why would scientists may want to know if two plant species are closely related.
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Answer:
- Two related plants may produce similar substances that could be used for medicines. - A related plant may provide a cheaper source of a substance. - If a plant becomes extinct, a related plant may provide an alternative source of a substance.
(No Explanation)
Los nombres de esos esos éteres y aldehidos
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Explanation:
la respuesta está en la imagen de arriba
please help me i need to pass
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Answer:
Read the question and try understanding it
Explanation:
26. Which scientist(s) observed changes in the characteristics of animals
on the Galapagos Islands?
James Hutton
Charles Lyell
Charles Darwin
Mrs. Willingham & Mr. Colson
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Answer:
Charles Darwin
Explanation:
In Galapagos Islands, Darwin observed that animals from different parts were clearly similar but had very different features (such as beak type in finches). He imagined that all of these finches belonged to the same original species but had adapted to better fit their environment in different islands.
please answer this for me
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Answer:
The answer is a tape worm they are long and flat and can have more than one inside a animal, fish, human, and more
Which of the following statements about cellular respiration is true? Group of answer choices In glycolysis, NAD+ is oxidized to form NADH. In the electron transport chain, NAD+ is oxidized to form NADH. In the electron transport chain, NAD+ is reduced to form NADH. In glycolysis, NAD+ is reduced to form NADH.
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Answer:
In glycolysis, NAD+ is reduced to form NADH.
Explanation:
NAD+ gains an hydrogen electron in the glycolysis pathway which translates to a reduction and not an oxidation.
There is also a subsequent oxidation that takes place in the electron transport chain system.
This facts makes NAD+ as being reduced to NADH in glycolysis as the right fans best option to choose from.
help me are these chemical or physical? will be giving brainliest :)
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2. Physical
3. Chemical
4. Physical
5. Chemical
6. Physical
7. Chemical
8. Chemical
Any physical change just changes the shape/form of an object (like cutting wood or blow drying hair). These are pretty reversible and they don’t change the chemical structure.
Chemical changes change the actual properties of the object, so like burning bread and acid rain!
In his research on hunger and the brain, Dr. VanderZyl stimulates the lateral hypothalamus of his animal subjects. This stimulationGroup of answer choicesinduces eating only in animals that have not eaten in a while.induces eating in animals, even if they are full.reduces eating in animals that are hungry.induces eating only in animals that have recently eaten but are still hungry.reduces eating in animals that are full.
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Answer:
The correct answer is - induces eating in animals, even if they are full.
Explanation:
Identify the phenotype for each of the genotype
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Answer: 1. Pp = purple
2. pp= white
3. PP= purple
4. BB= brown
5. Bb= brown
6. Bb= brown
When an organism gets larger, the characteristic of life shown is
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When an organism gets larger, the characteristic of life shown is becomes complex.
A biological process is represented in the diagram below. Which of the following concepts does the diagram best illustrate
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Answer:
in sexual reproduction the offering we see the same number of chromosome from each parent
PLEASE I NEED HELP Question 8 of 10
Membrane proteins called pumps use energy to move hydrogen ions to one
side of the membrane. Which term describes the difference between the
numbers of hydrogen ions on opposite sides of the membrane?
A. lon concentration
B. Concentration gradient
C. Homeostasis
D. Equilibrium
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Answer:
Explanation:
Pumps, also called transporters, are transmembrane proteins that actively move ions and/or solutes against a concentration or electrochemical gradient across biological membranes. Pumps generate a membrane potential by creating an electrochemical gradient across the membrane.
do you think there is an aesthetic value that could be attached to the hides of the nguni cattle after slaughtering ?
Answers
Answer:
The correct answer is - yes, these hides are used as aesthetic value.
Explanation:
Nguni hides are the secondary products after slaughtering the Nguni cattle farmed in South Africa. These skins or hides are used to make many aesthetic values and beauty items such as floor rugs. These hides are not only famous for their natural beauty but also due to their incredibly hard-wearing and very easy to clean.
Other than Floor rugs these are also used as furniture in rich houses and lodges. These hides are used to make shoes, leather jackets, car leather, and many more.
Pls fast
cancer drug Vinblastine interferes with the
synthesis of microtubules. Which process does
Vinblastine interfere with during the cell mitosis?
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Answer:
The correct answer is - disrupting microtubule assembly and proper formation of the mitotic spindle and the kinetochore.
Explanation:
Vinblastine is known for treating cancer cells by sending them to apoptosis. It interferes with the synthesis of microtubules. It binds to the microtubular proteins of the mitotic spindle that causes disrupting microtubule assembly.
It also prevents from proper formation of the mitotic spindle and the kinetochore which is essential to separating chromosomes during anaphase. They arrest mitosis and cause cell death.
Which animal adaptation happened before the others?
A. Reproduction on land
B. Lungs
C. Backbone and skull
D. Development of a coelom
Answer: D. development of a coelom
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Answer:
D?
Explanation:
Write the procedure of stone grafting.
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Answer:
Stone/epicotyl grafting is a simple, cheap and quick method of mango propagation with a success rate of 75-80%. For this purpose, stones should be sown in June-July on raised beds of size 1x3 m. the beds should e prepared by mixing soil and FYM in the proportion of 2:1.
Explanation:
Your welcome!
Brainlist Please! :)
The variable h represents the number of hours spent doing yard work and the variable d represents the amount of money earned how many hours spent doing yard work and the variable d represents the amount of money earned how many hours in all will it take Whitney to earn 15$
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Answer:
[tex]4\frac{1}{11}[/tex] hours
Explanation:
Given
See attachment for graph
First, we determine the equation of the graph.
Pick any two points from the graph
[tex](h_1,d_1) =(18,168)[/tex]
[tex](h_2,d_2) =(36,366)[/tex]
Calculate the slope (m)
[tex]m = \frac{d_2 - d_1}{h_2 -h_1}[/tex]
This gives:
[tex]m = \frac{366 - 168}{36 -18}[/tex]
[tex]m = \frac{198}{18}[/tex]
[tex]m = 11[/tex]
The equation is then calculated as:
[tex]d = m(h - h_1) + d_1[/tex]
This gives:
[tex]d = 11(h - 18) + 168[/tex]
Open bracket
[tex]d = 11h - 198 + 168[/tex]
[tex]d = 11h-30[/tex]
So, the number of hours to earn $15 is:
[tex]d = 11h-30[/tex]
[tex]15 = 11h -30[/tex]
Collect like terms
[tex]11h = 15 + 30[/tex]
[tex]11h = 45[/tex]
Solve for h
[tex]h = \frac{45}{11}[/tex]
[tex]h = 4\frac{1}{11}[/tex]
Can someone help me if this is correct
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Answer:
I think B because when you digest you release waste, you absorb nuitreunts from it, and you make proteins for energy.
4. The human population has experienced unchecked growth for the past 200 years. What does "unchecked" mean? A. Slow b. At a steady rate c. Unrestrained d. Dangerous
Answers
Answer:
B
Explanation:
The correct option would be B
The human population experiencing unchecked growth for the past 200 years does not mean that there were no restraining factors that limit the population. Factors such as death, competition for resources, diseases, etc., were still present.
Despite the limiting factors, the population has been growing. Hence, the correct word to replace 'unchecked growth' would be 'at a steady rate'.
Slow and dangerous really have nothing synonymous with unchecked growth.
The correct option is, therefore, B.
