The appearance of the pink color was due to the movement of a. phenolphthalein molecules from low concentration to high concentration b. base molecules from high concentration through the membrane to low concentration c. water molecules through the membrane from high concentration to low concentration d. phenolphthalein molecules in the water from high concentration to low concentration
Answers
Answer:
b. base molecules from high concentration through the membrane to low concentration
Note: the complete question is found in the attachment below
Explanation:
The process which enabled the color change in the water and phenology mixture is known as diffusion.
Diffusion is the movement of molecules from regions of higher concentration to regions of lower concentration until equilibrium concentration is attained.
In the setup by the student, the concentration of the base molecules are higher in container than in the test tube. The vaporized molecules of the base therefore, moved through the membrane into the water and phenolphthalein mixture, resulting in the color change to pink in the mixture due to the reaction of the base and the phenolphthalein.
Related Questions
which greenhouse gas is found in the highest concentration in the atomsphere
Answers
Answer:
watter vaper i beleave
Explanation:
please help! (\_/) 10 pts
Answers
Answer:
Genes, chromosomes, and nucleus
What causes the sinking of water in the northern Atlantic Ocean, which helps to drive the Ocean Conveyor Belt?
a.) The high salinity from the south warms and becomes less dense.
b.) The high salinity from the south cools and becomes denser.
c.) The low salinity from the south gains salt and becomes denser.
d.) The low salinity from the south loses salt and becomes less dense.
Answers
Answer:
the answer
proberbaly C or B
Answer:it's B or C
Explanation:
In cold regions, such as the North Atlantic Ocean, ocean water loses heat to the atmosphere and becomes cold and dense. When ocean water freezes, forming sea ice, salt is left behind causing surrounding seawater to become saltier and denser. Dense-cold-salty water sinks to the ocean bottom.
Explain how autotrophs obtain their energy to make their own food, and list at least three examples of autotroph organisms.
Answers
Answer:
Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar. The glucose gives plants energy.
Explanation:
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sorry if its wrong
A new moon is visible on Earth when the Sun, Moon and Earth are positioned so that the Moon - a is on the opposite side of Earth from the Sun. b is in between Earth and the Sun. c forms a right angle with Earth and the Sun. d can’t be seen from Earth or the Sun.
Answers
Answer:
d
Explanation:
Answer:
D
Explanation:
Energy can change in two different ways. It can undergo a transfer, or it can undergo a transformation. For each of these examples of how energy is changed, write the correct answer in the blank.
In photosynthesis, solar energy undergoes a _______ when it changes from light energy to chemical energy. When the sun warms Earth’s surface, thermal energy is ___________ to land and water.
Answers
Answer:
Energy transfer is the movement of energy from one location to another. For example, when electricity moves from a wall plug, through a charger, to a battery.
Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy.
While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation.
Explanation:
GUYS I NEED HELP PLZZ
Which statement does not describe
checkpoints?
O Normal checkpoints assess damage to DNA.
O Defective checkpoints result in the death of the cell.
O Cell checkpoints can fail in mitosis and meiosis.
O Faulty checkpoints may lead to abnormal cell growth.
Answers
Answer:
Defective checkpoints result in the death of the cell.
Explanation:
What makes sperm and testosterone
Answers
Answer:
your brain makes special hormones called GnRH, and these hormones signals the testes to make more testosterone.
Explanation:
i hoped this helped:)
WRITE name of this cell organelle here...
Answers
how are the human senses connected with memory
Answers
Answer:
During every moment of an organism's life, sensory information is being taken in by sensory receptors and processed by the nervous system. Sensory information is stored in sensory memory just long enough to be transferred to short-term memory. Humans have five traditional senses: sight, hearing, taste, smell, touch
How are structures G and F related? What are their names and how do they function?
Please helppp I’ll give brainliest
Answers
Answer:
F is the filament and G is the anther. The anther produces pollen (male reproductive cells). The filament holds the anther up. They are related because they are both male parts of a flower.
Explanation:
Hope this helps
. What happens to the bunny population if a friend is never added? What happens when you add a friend?
Answers
Answer: If a friend is never added then the bunny will die, but when you add a friend the bunnies sexually reproduce, and the population grows.
Hope this helps....... Stay safe and have a Merry Christmas!!!!!!! :D
I just want to say that my account got deleted yesterday and i would love if i got at least 18-25 friends by Christmas!!!!!!! :D
If a friend is never added then the bunny will die, but when you add a friend the bunnies reproduce, and the population grows.
What are three mutations you can add ?
You are able to add further modification, choice factors, and the condition. The modification available are brown fur, elongate tail, and elongate teeth.
Thus, friend is never added then the bunny will die.
To learn more about bunny population click here:
https://brainly.com/question/15808468
A person with blue eyes probably inherited his recessive blue eye color from
(2 Points)
a. his mom
b. his dad
c. both parents
Answers
Answer:
(C) Both parents
Explanation:
mark me a brainliest,
PLS
From one trophic level to the next, only_(a) % of the energy is transferred. The other
(b)___% is used by the organisms getting consumed during its life processes.
A. (a) 25, (b) 75
B. (a) 10, (b) 90
C. (a) 75, (b) 25
D. (a) 90, (b) 10
Answers
Answer:
B. (a) 10, (b) 90
Explanation:
The ecosystem consists of a flow of energy that unidirectional and there is always a decrease in the amount of energy when it's transferred from one place to another. Such as in the food chain there is a transfer of 10% amount of energy which is used by the various organisms and 90% of energy is lost between the tropic levels in form of heat and respiration.Which bond of ATP will be broken to form ADP and release energy for use in the cell?
Answers
Answer:When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP).
Explanation:
PRESS THE CROWN
when you combine two or more substances and something new is created that is an example of
A) MATTER
B) PHYSICAL PROPERTIES
C) CHEMICAL CHANGE
D) PHYSICAL CHANGE
Answers
This is C)chemical change
For example combustion where an organic compound is turned into CO2 and water.
In a certain species of flowering plant, the purple allele P is dominant to the
Yellow allele p.
A student performed a cross between a purple-flowered plant and a
yellow-flowered plant. When planted, the 146 seeds that were produced from the
cross matured into 87 plants with purple flowers and 59 plants with yellow
flowers.
Calculate the chi-square value for the null hypothesis that the purple-flowered
parent was heterozygous for the flower-color gene. Give your answer to the
nearest tenth.
Answers
Answer:
3.4
Explanation:
If the purple flower is heterozygous:
Pp x pp
Pp Pp pp pp
the expected ratio of purple flower offspring to yellow flower offspring would be 50:50.
Chi square = [tex]\frac{(O - E)^2}{E}[/tex] where O = observed frequency and E = expected frequency.
phenotype O E Chi square
purple 87 73 [tex]\frac{(80-73)^2}{73}[/tex] = 0.67
yellow 59 73 [tex]\frac{(59-73)^2}{73}[/tex] = 2.68
Total = 0.67 + 2.68 = 3.35 to the nearest tenth = 3.4
Degree of freedom = 2 - 1 = 1
Critical Chi square value (alpha = 0.05) = 3.84
SInce the critical Chi square value is greater than the calculated value, the null hypothesis is accepted.
Which would be a normal brain wave pattern for a relaxed adult?
A. 9 cycles/second
B. 2 cycles/second
C. 5 cycles/second
D. 14 cycles/second
Answers
Help me with this question plsssss answer this in a complete paragraph
Answers
Answer:
It's possible.
Explanation:
It said if they were nearly as smart as humans. They never said if they were as capable as Humans. Naturally, some would be smarter than others so some might be able to live here but others might have to have their own country. So, it is likely that some Neanderthals will be able to live in modern society, though not all.
True or False:
In a normal fault, the block of rock that lies above is called the footwall and the one below is
called the hanging wall
Answers
Answer:
false
Explanation:
the diagram below shows a strand of DNA matched to a strand of mRNA. what process does this diagram represent?
a. mutation
b. respiration
c. translation
d. transcription
Answers
What kind of waves are present during an earthquake? ...
What kind of energy does an unlit match have? ...
Which of these is another way to write Newton's second law of motion? ...
What is it called when light changes direction after leaving a lens? ...
How do you calculate density?What kind of waves are present during an earthquake?
Answers
Answer:
1.The two main types of waves are body waves and surface waves. Body waves can travel through the earth's inner layers, but surface waves can only move along the surface of the planet like ripples on water. Earthquakes radiate seismic energy as both body and surface waves.
2. As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some is transformed into light energy. Light energy, also known as radiation or electromagnetic energy, is a type of kinetic energy that takes the form of visible light waves, such as the light from a match
3. Newton's second law of motion is F = ma, or force is equal to mass times acceleration.
4. Answer: Refraction is the bending of light (it also happens with sound, water, and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms, and rainbows. Explanation: Refraction.
5. The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.
please help me out.
Answers
Answer:_____________
Explanation:_____________
What organic molecules have the function of being part of cell membranes?
Answers
Answer:
Cholesterol and steroid hormones. Cholesterol, an important component of cell membranes, is an amphipathic molecule because of its polar hydroxyl group. Cholesterol is also a precursor to the steroid hormones, such as testosterone and estradiol
Explanation:
how does the sodium atom bond to the chlorine atom ?
Answers
Explanation:
It is happening when a sodium atom loses an electron to a chlorine atom and because of that sodium atom is becoming a positive sodium ion and the sodium ions and chloride ions form an ionic lattice.
Sodium - Na
Chloride - Ch
Sodium and Chloride are both elements that cannot be found separately and free in nature but they are found as bonded together.
Write a few sentences about how being small helps cells survive, and being made of many small cells help large organisms maintain homeostasis?
Answers
Answer:
It is important for the cell to be able to bring necessary nutrients immedriately where it needs to and to be able to dispose of harmful byproducts of the cell process. It is equally important to be able to regulate water concentration.
Answer:
For the first question, you have to first understand how cells work. Cells transport nutrients and water through their cell membrane, and it's their only way of transporting things they need in and out of their interior. Hence, a larger surface area would be best for cells to survive.
You might ask, but then why wouldn't it be better for cells to be bigger if a larger cell membrane is beneficial to their survival? After all, as the cell gets bigger, their cell membrane gets bigger too!
Unfortunately, you'd be forgetting one thing: the insides of the cell, otherwise known as the volume of the cell, grows too. So, it becomes a mathematical question at this point: imagine a cube. If you doubled it's side length, your surface area would grow by 4 times ([tex]2x \cdot 2x = 4x^{2}[/tex]), and your volume would grow by 8 times! ([tex]2x \cdot 2x \cdot 2x = 8x^{3}[/tex])
Hence, if the cell got bigger, it's volume would grow faster than the surface area, and the cell would start to build up carbon dioxide and other waste materials.
This is the main reason why being small helps cells survive. Of course, there are many other reasons, like compactness, efficiency and survivability, but this is the main reason.
Of course, if you're smart, you'd have already discovered one thing: this is exactly the reason for your second question as well. Since a large organism being made of one or few large cells would greatly decrease surface area-to-volume ratio, the efficiency would plummet and the large organism would die. Hence, many small cells would help large organisms maintain homeostasis.
Explanation:
Hope this helped!
PLEASE HELP ASAP ILL GIVE BRAIN BUT PLEASE A CORRECT ANSWER TYSM<3
Answers
Answer:
Some ice will turn into liquid water
Explanation:
The type of fermentation that occurs in humans is (Answer here) , while the type of fermentation in yeast and other microorganisms is (Answer here)
Answers
Answer:
humans go through lactic acid fermintation,fermentation, the body needs energy in a hurry...hope thos helps
Which part of plant cell helps the cell during cell division of plant cell ?
Answers
Answer:
nucleus
Explanation:
Nucleus helps in cell division.
Transcribe the Following DNA Message. WILL GIVE BRAINLY IF CORRECT!!
GTA, CGA, TGT, ATT, ACT, CCG, TAG