Your lab group is experimenting with the diffusion of molecules across a membrane. Dialysis tubing is used as a model cell
membrane, because is it semi-permeable, allowing small molecules to cross the membrane, but NOT larger molecules, like starch
A starch solution is placed in the dialysis tubing and then the dialysis tubing is placed in an iodine and water solution. lodine is
used as an indicator for the presence of starch. Normally, iodine is a yellow-brown color, but in the presence of starch, it turns a
deep purple. After observing the experimental setup for 20 minutes, the iodine solution remains brown, but the starch solution
inside the dialysis tubing is purple and swollen. Based on what you learned from the lab, starch is MOST likely to cross the cell
membrane at which of the points indicated on the diagram?
ah
ing

Answers

Answer 1

Starch requires ATP energy for transport and therefore cannot cross the dialysis tubing into the iodine solution.

Answer 2

The person above me is right

Related Questions

PLS HELP ME I WILL GIVE BRAINLIEST

Answers

I believe that a disease that destroys half of the population would be more difficult to survive than the disease that targets organisms with similar traits because with sexual reproduction, there will be differences in genetics. If the population reproduced asexually, then that disease would be more effective.

(Sorry if answer is wrong)

Label A
DONE
Label B
DONE V
Label C
DONE
Label D
DONE
B
D

Answers

Answer:

what is the question

Explanation:

is there supposed to be any picture ion get it

What happens when the hearts beats?

Answers

Answer:

it pumps blood

Explanation:

Answer:

When the heart beats it pumps blood into the arteries and veins connected to it.

Hope this helps

Which of the following exceptions to the Fourth Amendment allow law enforcement officers to search email, telephone, medical, and financial records?
A.
voluntary consent
B.
hot pursuit
C.
the USA PATRIOT Act
D.
exigent circumstances
E.
Miranda exclusion

Answers

Answer:

C. USA PATRIOT Act.

Explanation:

The USA PATRIOT Act of 2001 enables law enforcement officers to search emails, telephonic conversations, medical, library and financial records. The USA PATRIOT Act stands for Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act. This act was enforced into the law after the terrorist attack on the World Trade Center and the Pentagon on September 11, 2001.

The Fourth Amendment of the Constitution protects the rights to privacy of it's citizen but with exceptions. The USA PATRIOT Act is one of those exceptions. Under this exception the police officers have permission to search email, telephonic conversations, medical, library and financial records without warrant, if there's any hint of possible threat.

Therefore, option C is correct.

Answer: c

Explanation:

Provide at least three reasons why friction is needed.

Answers

Answer:

Although you normally hear about trying to reduce or eliminate friction, it actually has some important uses.

Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.

Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.

Explanation:

Answer:

Friction allows people and objects to move. It provides traction for an object to start moving or change direction. It can also give people a better grip on objects. Finally, friction keeps objects in place when they are set down.

Explanation:

Sample Response

The endosymbiotic theory states that the mitochondria of eukaryotes are the evolutionary result of a Proto-eukaryotic cell engulfing an aerobic bacterium, which then evolved into the mitochondrion. Which characteristic of mitochondria supports this theory of development? A retention of a single layer membrane B retention of the chlorophyll pigments C retention of their own genome D retention of their own nucleus

Answers

Answer:

The correct answer is - C. retention of their own genome.

Explanation:

The endosymbiotic theory is a theory that suggests that eukaryotic cells are developed from prokaryotic cells. According to this theory, organelles like mitochondria are developed in eukaryotic cells as the result of proteo-bacteria cells engulfing aerobic bacteria.

The evidence of this theory can be seen as the mitochondria has their own genome such as circular DNA and ribosomes as the prokaryotes.

Large geographic region characterized by a distinct climate and mix of species

Answers

A biome is also generally a large area so they tend to be home to many, many species of similar plants and animals.
Answer: A biome!

Give an example from the passage of how two or more animals are connected to each other, and why the connection is important for the ecosystem.
Answer

Answers

Answer:

have a great day : )

Explanation:

The passage is not found here but two or more animals are connected to each other due to trophic relationships, which maintain the ecosystem homeostasis.

What is ecosystem homeostasis?

The expression 'ecosystem homeostasis' makes reference to the overall state of equilibrium of an ecosystem.

The interaction of animals through trophic networks is critical for reaching ecosystem homeostasis.

In conclusion, the passage is not found here but two or more animals are connected to each other due to trophic relationships, which maintain the ecosystem homeostasis.

Learn more on ecosystem homeostasis here:

https://brainly.com/question/27254748

#SPJ2

Water does not contain carbohydrates, fats, or proteins which are essential components of food. Then why do we drink water?

Answers

Answer:

Water is a universal solvent, and is used in biochemical reactions that take place in the human body.

Codons are triplets of nitrogenous bases on mRNA that code for a specific...

Answers

Answer:

three nucleotides—called a triplet or codon—codes for one particular amino acid in the protein. The nucleotide sequence in the DNA is first transcribed into a molecule of messenger RNA (ribonucleic acid).

PLEASE HELP ME I ONLY HAVE A FEW MORE QUESTIONS LEFT!!!

Answers

1. e
2. b
3. g
4. CUG
5. a

Answer:

1.)ribosome

2.)amino acid

3.)tRNA

4.)anticodon

5.)Codon

Explanation:

Base your answer to the question on the information below and on your knowledge of biology.
A biology student was given three unlabeled jars of pond water from the same source, each containing a different type of mobile unicellular organism: euglena, ameba, and
paramecium. The only information the student has is that the ameba and paramecium are both heterotrophs and the euglena can be either heterotrophic or autotrophic, depending
on its environment
State one way the euglena's two methods of nutrition provide a survival advantage the other unicellular organisms do not have.
No

Answers

Answer:

They can perform photosynthesis.

Explanation:

Autotrophs are organisms that can produce their own food, and heterotrophs are organisms that feed on other organisms. This means that the ameba and paramecium can eat only other microorganisms.

The euglena is not limited to this. Hypothetically speaking, if there were no other microorganisms around it (which is unlikely), the euglena would not die as long as it is exposed to sunlight. Thanks to chloroplasts, organelles that contain chlorophyll, it can perform photosynthesis - a process in which, with the help of sunlight, carbon dioxide, minerals, and water are used to synthesize food.

can someone tell me whether these equations are either parallel, perpendicular, intersect but not perpendicular, or coincide??

3x - 4y - 6
-4x - 3y - 6

Answers

Answer:

they intersect they coincide

Explanation:

coincide one line overlaps another one

they intersect the lines meet but they are not parallel or perpendicular



Complete the following complimentary DNA sequences and be sure to label the primes on the
strand as well.
3' TTTAACGGC 5'
3' GGCTATCAT 5'
5' GGCTTATCG 3'

Answers

1. 5’ AAATTGCCG 3’
2. 5’ CCGATAGTA 3’
3. 3’ CCGAATAGC 5’

please help I'm listing my whole file in parts, Explain the different steps involved in cellular respiration. (Focus on glucose and oxygen)
one sentence will do.

Answers

Answer:

Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.

Explanation:


Which one of the following lacks in prokaryotic cell
(a) Cytoplasm (b) Cell membrane (c) Chromosomes (d) Membrane bound nucleus

Answers

Answer:

Membrane bound nucleus

Explanation:

What is happening to the soda and air in the can?

Answers

there’s no context..

explain how ATP can be compared to a rechargeable battery.

Answers

Explanation:

when it's fully charged it's a ATP and when it's runs down it's ADP

and there are times when the cells need more energy and splits off another phosphate so it goes from ADP adenoside di-phosphate, to AMP, adenosine mono-phosphate  

and there you have it

The state of Georgia has seen their water table become lower. What does this mean?
A. The amount of groundwater is increasing.
B. Their groundwater is flowing to confined aquifers.
C. The amount of groundwater is decreasing.
D. heir groundwater is being recharged by rain.

Answers

Answer:

The amount of groundwater is decreasing.

Explanation:

The water table is the top of the groundwater in the Earth. The greater its depth in the Earth, the less groundwater is in the aquifer below.

describe the difference between the cell wall and plasma membrane in terms of movement of substance into and out of cells​

Answers

Answer:

The cell wall is a fully permeable membrane while as the plasma membrane is a particular membrane

Explanation:

The cell wall will allow all the substances go inside or outside while as the plasma membrane will only allow certain substances to go in or out based on the cell's needs.

Respiration is a process during which energy is released from glucose. This energy is used for processes such as growth of the body. Which type of energy does respiration release?
A. Chemical
B. Thermal
C. Kinetic
D. Potential

Answers

Answer:

metabolism is the set of the chemical reactions that release energy for cellular processes.

The type of energy that does the process of respiration release is known as chemical energy. Thus, the correct option for this question is A.

What is Respiration?

Respiration may be defined as a metabolic process through which living cells of an organism significantly obtain energy in the form of ATP by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.

During cellular respiration, energy is released through the breakdown of glucose into carbon dioxide, water, and energy in the presence of oxygen. Due to this, the form of energy that cellular respiration produces is chemical energy.

Therefore, the type of energy that does the process of respiration release is known as chemical energy. Thus, the correct option for this question is A.

To learn more about Cellular respiration, refer to the link:

https://brainly.com/question/2809259

#SPJ6

What did you include in your response? Check all that apply. Distance and displacement are the same in the 100-m sprint. Velocity and speed are the same in the 100-m sprint. Distance is 400 meters in the 400-m sprint. Displacement is zero in the 400-m sprint. Velocity is zero in the 400-m spri

Answers

Answer:

Distance and displacement are the same in the 100-m sprint, therefore, velocity and speed are the same in the 100-m sprint.

Distance is 400 meters in the 400-m sprint, therefore Speed is not zero in the 400 M sprint.

Displacement is zero in the 400-m sprint, therefore, Velocity is zero in the 400-m sprint

Note: The question is missing some details which is given below;

A 100-meter sprint is a race using only the straight side of a racetrack. a 400-meter sprint is a race that makes one complete lap around a racetrack. why are velocity and speed the same for a 100-m sprint but not a 400-m sprint?

Explanation:

The speed of a body is the ratio of the distance covered and the time taken whereas the velocity of a body is the rate of change of displacement with time.

Distance measures the total length of space covered throughout the duration of motion, whereas displacement measures the change in a specified direction from a specific point.

In the 100 m race along a straight line, both distance and displacement = 100 m, therefore speed and velocity are the same. However, in the 400 m race, distance covered is 400 m, but the displacement is zero since the person returns to his/her starting point. Therefore, speed is not equal to zero, but velocity is equal to zero.

How are local energy systems in the prairie related to global systems?

Answers

Answer: The energy system is related to the global system by getting an information system by it. The global system is developed and it's the major system that delivers the whole of measurable data worldwide including local energy system which is essentially designed to supply energy services

How can a bacterium ensure that there is always a concentration gradient that will drive passive transport of food molecules into its cell?

Answers

Answer:

There are two major ways that molecules can be moved across a membrane, and ... is trying to be evenly distributed everywhere, like dropping food coloring in water. ... These channels are almost always specific for either a certain molecule or a ... When a molecule moves down its concentration gradient is it participating.

When a solute particle from the region of high concentration travels towards the region containing the lower solute particle is called passive transport. It is transported easily without spending energy.

Bacteria ensures that the food molecule from the surrounding will transport through the passive transport system by the concentration gradient as molecules can get in the cell by two processes.

Concentration gradient allows the movement of food from the region of high concentration towards the region of low concentration that is in the bacterial cells.

Bacterial membrane permits the movement of food molecules across its membrane easily.

Therefore food is transported to the bacteria through passive transport.

To learn more  about passive transport and concentration gradient follow the link:

https://brainly.com/question/6115952

You notice that a group of students went on a hiking trip to Cockscomb basin. They are asked to climb a hill, by the time they reach the top of the hill some of them are almost out of breath, while others don't even make it to the top of the hill. Only a few seem not to be affected much by the climb. Plan and design an experiment in which you offer a possible explanation for the differences in breathing rate.

Answers

Answer:

It depends on the stamina of the individual.

Explanation:

The possible explanation for the differences in breathing rate is related to the daily activities of the individuals. For example, if the daily activities of the people are hard so it has big stamina and experience no difficulty in the climbing of a hill while those people who has little hard daily activities have low stamina and their breathing rates increases while climbing a hill. Where as those people who perform no daily activities have no stamina and will be unable to climb on the hill.

=-=-=-= 20 Points! Due Soon! =-=-=-=

Based on the Punnett square you completed for question 7, would it be possible to produce a child without hair on the back of their hands if one of the parents had two dominant alleles? Explain.

Answers

First of all the cross you made at number 7 is incorrect

top left is correct

top right is wrong, it should be HH since you combined allele H with allele H

bottom left is correct

bottom right should be Hh since you combined allele H with allele h

8. If you cross two parents with HH and HH the offspring can't manifest the recessive gene since it's not present in both parental genotypes.

How would you describe the solvent front?

Answers

Answer:

In chromatography, the solvent front is the position on the TLC plate indicating the furthest distance travelled by the developing solvent (or eluent) Once a TLC place is developed in a TLC chamber, the plate is removed from the chamber and a pencil is used to quickly mark the furthest point travelled by the solvent

Bluegill fish reproduce when males fertilize eggs laid by female fish is an example of which?
(1 point)
A.
Asexual reproduction
B.
Sexual reproduction

Answers

Explanation:

Reproduction in Fishes. Nearly all fish reproduce by sexual reproduction - the fusion of sperm produced from testes and eggs produced from ovaries. ... Fertilization is external in most fish species. Large quantities of eggs and sperm are simultaneously released into the water by females and males.

What do you mean by the statement that the blood pressure of a
person is 120/80mm of Hg ?

Answers

Answer:

number higher than 120/80  Hg are a red flag  that you need to take on heart -healthy habits.when your systolic pressure is between 120 and 129 mm Hg and your diastolic  pressure  is less than 80 mm Hg it means you have  elevated blood pressure.

Explanation:

. In summary, elephants are a keystone species. Based on your knowledge of this term, explain in your own words why it is important to the ecology and ecosystems of Africa to save the elephant populations

Answers

It will save the economy if they can get them to a stable rate

Based on your knowledge of this term, the importance to the ecology and ecosystems of Africa to save the elephant populations is that It will save the economy if they can get them to a stable rate.

What is ecosystem?

An ecosystem have each as well as every organism and the relation between the physical environment by which they must interact. The function of the ecosystem has to satisfy the need of the humans by supplying them services as well as goods from the nature.

Ecosystem has been the branch of the science which has deals with the study of the relationship between the living organisms and the natural phenomena. Ecosystem has the system in which the both living as well as nonliving organisms are present in the particular location.

There has been various types of the ecosystem such as the Grassland ecosystem, Tundra ecosystem, Desert ecosystem, Forest ecosystem and many more type of ecosystem is present in the environment.

Therefore, Based on your knowledge of this term, the importance to the ecology and ecosystems of Africa to save the elephant populations is that It will save the economy if they can get them to a stable rate.

Learn more about ecosystem on:

https://brainly.com/question/13979184

#SPJ2

Other Questions
Damian's teacher told him that the standardized score (z-score) for his science exam, as compared to the exam scores of other students in the course, is 1.50. Which of the following is the best interpretation of this standardized score?Damian's test score is 150.Damian's test score is 1.50 standard deviations above the average test score of students in the course.Damian's test score is 1.50 above the average test score of students in the course.Damian's test score is 1.50 times the average test score of students in the course.None of the above gives the correct interpretation. This area model shows the quotient of 1/54. PLEASE I NEED HELP!! LOOK AT THE PHOTO!! ILL GIVE POINTS!! y= 2x +3y= 4x-3Is(3,9) a solution of the system?Choose 1 answer: A: yes B: no What would be the equivalent discount for this item be? I NEED HELP ASAP!!!! 7. Who should have the most responsibility in conserving the natural resources of our environment? A.) The federal governmentsB.) It is every citizen's duty.C.) The state governmentsD.) Local governments PLSSSS HELP ASAP!! GIVING BRAINLIEST!! Pls Explain :)At the store, meat was $73.70 for 5 pounds. If you bought 15 pounds, how much would it cost? Anybody know the answer to this ?? In the diagram below Please help Ill give brainliest What would happen if you didn't drink water? A number y minus 12 is no more than 32.The inequality is what deos sedimentation mean What is the time difference from Greenwich Mean Time to Eastern Standard Time in the US?EST is GMT minus 5 hours.EST is GMT plus 5 hours.EST is GMT minus 6 hours.EST is GMT plus 6 hours.EST is GMT plus 3 hours. When mixed how many cups are in the punch?1 1/3 orange, 3/4 apple, 2/3 cranberry, and 3/4 lemon-lime Determine the solution of the equation 4y - 5= 7.A) 4B) 3C) Globally, sea levels have risen by _____ inches over the past 100 years. Construct an equilateral triangle of side 7cm and construct circumcircle. Can anyone help me with this , I have to sumbit my PROJECT.THanks Why does an antbite hurt 4 swell Tyree plans to use SSS to prove two triangles made from a sheet of paper are the same. Which diagram best supports his plan to use SSS?Picture below 1.What is the purpose of the labTo familiarize students with experimental apparatus, the scientific method, and methods of data analysis so that they will have some idea of the inductive process by which the ideas were originated. To teach how to make careful experimental observations and how to think about and draw conclusions from such data.2.The main purpose of lab is to perform different experiments and importance of topic is that it supports essay's thesis statement.Use your answers from questions 1 and 2 (above) as the basis for the first section of your lab report. This section provides your reader with background information about why you conducted this lab and how it was completed. It should be one to two paragraphs in length.