Why do cells need to use active transport? Give one example of how cells use active transport.

Answers

Answer 1
We need active transport to move things against a concentration gradient. An example is moving amino acids along human intestinal tract.
An example in plants is active transport of mineral ions into root hair cells

Related Questions

Factors
Increase or Decrease
in Carrying Capacity?

Answers

Answer:

Carrying capacity, or the greatest number of people that an environment can support over time without harming or degrading it, is controlled by a few basic factors: food supply, water availability, and space. Carrying capacity, or the greatest number of people that an environment can support over time without harming or degrading it, is controlled by a few basic factors: food supply, water availability, and space.

Explanation:

Aupporting cells of the nervous system are collectively called:

Answers

Supporting cells of the nervous system are collectively called neuroglia.

Answer:

They are called neuroglia or glial cells.

What type of solution causes a cell to shrink in size?
O Isotonic
O Homeotonic
O Hypertonic
O Hypotonic

Answers

Hypertonic C. I think answer correct.

Observa el mapa de las fallas tectónicas de la Hispaniola y luego escribe las instrucciones

Porfa díganlo. rapido

Answers

Answer:

El 14 de agosto de 2021, un terremoto de magnitud 7,2 sacudió Haití. El terremoto más grande en la región desde 2010, el desastre dejó al menos 2,000 personas muertas, 12,000 personas heridas y casi 53,000 casas destruidas.

the male reproductive system and the urinary system share which organ?

Answers

Which part of the urinary system is shared with the reproductive system in males? Well, the (urethra) conducts urine for the urinary system and semen for the reproductive system in males.

The answer is urethra

What is the term for the congenital absence of the urinary bladder?

Answers

Answer:

Urinary bladder agenesis

Explanation:

Bladder agenesis may be the result of secondary atrophy of the urogenital sinus, perhaps owing to the lack of distension with urine caused by failure of incorporation of the mesonephric ducts and ureters to develop into the trigone.

hope this helps

bye

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST

Answers

Answer: 50% will be purple
There’s a 50% chance the genes will be heter*zygous (Pp, purple flower) and 50% chance they will be hom*zygous recessive (pp, white flower)
Punnet square drawing attached

the group of blood disorders in which blood oxygen levels are inadequate to support normal metabolism is called

Answers

Answer:

anemia

Explanation:

the level of red blood cells in the body is lower than normal, which means that the body does not have enough oxygen :)

organisms that have bigger genomes are more complex than organisms with smaller genomes.

Answers

Not necessarily. There is a Japanese flower (Paris japonica) that has a genome 50x larger than the human gene.

how many feet of intestines does the average person have

Answers

Research suggest that the combined length of the small and large intestines is at least 15 ft in length. The small intestine can measure about 9-16 ft while the large intestine is roughly 5ft long.

If a cell being observed has been magnified 200x under the HPO with a magnification of 40x, what is the magnifying power of the eyepiece used?​

Answers

Answer:

5x

Explanation:

I hope this helps you!

Determine which of the following steps cannot occur in the rock cycle.


magma → sedimentary rock

sedimentary rock → metamorphic rock

metamorphic rock → magma

igneous rock → sediment

thanks :)

Answers

Answer:

magma > sedimentary rock

Explanation:

magma can only be cooled into an igneous rock but cannot directly be formed into a sedimentary rock.

which hormone signals the breakdown of glycogen in the liver increasing glucose in the blood?

Answers

Answer:

The answer is glucagon

Explanation:

When the blood sugar level drops down, the glucagon hormone converts the glycogen into glucose and raises its level in the bloodstream.

Glycogen is a main source of energy for the body. Glycogen is stored in the liver. When the body needs more energy, certain proteins called enzymes break down glycogen into glucose. They send the glucose out into the body.

Which hormone stimulates the breakdown of glycogen in the liver into glucose?

Glucagon's role in the body is to prevent blood glucose levels from dropping too low. To do this, it acts on the liver in several ways: It stimulates the conversion of stored glycogen (stored in the liver) to glucose, which can be released into the bloodstream.

How does glucagon increase blood glucose?

When your blood glucose levels trend lower or fall too low (hypoglycemia), your pancreas releases more glucagon. Glucagon helps blood glucose levels rise back up in multiple ways, including Glucagon triggers your liver to convert stored glucose (glycogen) into a usable form and then release it into your bloodstream.

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Making changes to the secondary structure of hair has a different outcome than making changes to its tertiary or quaternary structure. How does this outcome differ

Answers

The outcome differs in the way that the protein folds itself at each level. The changes in the way that it folds lead to:

modifications in the function, shape or in the combination with other proteins.

Protein has different levels of structure. Each of them is related to how the amino acids and other molecules interact with each other. Hair is made of proteins, so if one of the structures is affected, the hair is too.

Let's analyse what happens in each level of structure:

In the case of the primary structure, which is the sequence of amino acids, the modification will give a non-functional protein that will not fold into the following structural level. So, there won't be new hair.For the secondary structure, a modification here can lead to a different folding. In other words, it can change from an α helix to a β pleated sheet or the other way round. This will give a different shape to the hair, like curly or straight.A modification in the tertiary structure modifies the interaction of the R groups in the protein, so the three-dimensional structure that this interaction gives will change, giving a different type of hair.Lastly, if we modify the quaternary structure, the protein won't interact with some proteins, but it may interact with others.

In conclusion, the modification of the secondary structure changes the interaction between the elements of the protein giving hair with different shapes.

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Answer:

Changes in secondary structure are temporary, while changes to tertiary or quartenary structure are permanent.

Which of the following is a good way to prevent tonsillitis?

Answers

Answer:

d. All of the above

Explanation: is correct and post protected

All nine essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity

Answers

Answer:

All 9 essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity? Combining foods that complement each others essential amino acids.

Explanation:

I hope this helps!

How do CAM plants photosynthesize under bright hot conditions without drying out?

Answers

Answer:

by sealing their leaves against water loss and trapping carbon as organic acids

Explanation:

hope this helps :)

Which of these choices is a benefit of the Endangered Species Act?

A. Can prohibit removal of dangerous animals
B. Can interfere with economic progress
C. Can cost a lot of money to enforce
O D. Can save species from extinction

Answers

Answer:

D. Can save species from extinction

Explanation:

As saving species from extinction is what Endangered Species Act would want as endangered means that the animal is close to dying and is in danger of being there no longer

Benefits of the Endangered Species Act can prevent the extinction of certain species. So, the correct option is D.

What is Endangered species Act?

One of America's most important and effective environmental legislation is the Endangered Species Act. It shows that Americans are willing to cooperate in order to preserve and safeguard the species that are most in danger of going extinct for good.

For landowners, government organisations, and concerned citizens, the legislation offers reasonable, well-balanced options for preserving endangered wildlife and its ecosystems. There are three crucial components in it:

1. Preventing harm or extinction of the listed species

2. Creating strategies to reestablish healthy populations

3. Protecting habitat, which is crucial to the survival of these species.

Therefore,  the correct option is D.

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What are the missing coefficients for the skeleton equation below? N2+ H2-->

NH3

(A)3,1,2 (B)1,3,3 (C)1,3,2 (D)1,1,2 (E)2,6,6

Answers

I choose the option C.
N2 + 3H2 = 2NH3

Drug Y inhibits the activity of parasympathetic information. Which cranial nerve would possibly be affected

Answers

The cranial nerve III, VII, IX, and X regulate the activity of parasympathetic information.

Based on cell theory, which of these answer choices would describe one reason a virus is considered nonliving?

Answers

Answer:D

Explanation:

I just did it

_____ mimic the process of natural evolution to generate solutions to optimization and search problems.

Answers

Search algorithms are used to generate solutions to optimization and search problems.

Search algorithms that mimic the process of natural evolution. Search algorithms can be used to generate solutions to optimization and search problems using techniques such as mutation, selection, crossover, and chromosome.

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During cellular respiration, most of the ATP energy generated comes from the electron transport chain. True false question. True False

Answers

Answer:

A true

Explanation:

only 4 at is created outside the electron transport chain

but cellular respiration produces at net gain of 36 atp

thus the other 32 atp comes from the electron transport chain

dna is synthesized through a process known as _____.

Answers

Dna is synthesized through a process known as DNA Replication.

DNA is synthesized through a process known as - DNA replication or semiconservative replication.

DNA replicationsynthesis of new DNA. a double-stranded DNA molecule is copied to produce two identical DNA molecules.is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information or DNA.the replication takes place in the following steps:step 1

in the nucleus of the cell the DNA double helix separates after that an enzyme named DNA helicase attaches to the DNA molecule and moves along the molecule and 'unzips' the two strands of DNA

Step 2

since nucleotides are floating in the nucleus that means there are A, G, T and C's floating around also. these are bases that form hydrogen bonds with the bases of DNA strands.

Step 3

the enzyme they call DNA polymerase catalyzes the formation of the sugar-phosphate units at the sides of the helix and connects one base pair to the next one

Thus, DNA is synthesized through a process known as - DNA replication or semiconservative replication.

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True or False: Transcription and Translation can occur at the same time for a single mRNA in prokaryotes.

Answers

Answer:

False, they cannot

if a cell is in a state in which it no longer divides then the cell is probably arrested at which stage of the cell cycle?

Answers

Answer:

Interphase

I

Explanation:

Interphase is the period of the cell cycle during which the cell is not dividing. The majority of cells are in interphase most of the time. Mitosis is the division of genetic material, during which the cell nucleus breaks down and two new, fully functional, nuclei are formed.

PLEASE HELP ME QUICK ILL GIVE 85 POINTS

Answers

Answer: I think b

Explanation: really sry if I’m wrong

Answer:

9j 7 77777 h7jhoa  lllll

Explanation:

This pedigree chart tracks the inheritance of a recessive trait that is not linked. Based on the information in the chart, which of the following statements is true?

Individual #8 must be for the trait.
Individual #10 must be for the trait.
Individual #13 must be .
Individual #3 must be .

Answers

Answer:

A. Individual #8 must be heterozygous for the trait.

Pls help pls 30 points and brainley for right answer.
Burton Arctic fish such as winter flounder survived by producing a protein that keeps your body fluids from freezing down to -1.5 degrees Centigrade this antifreeze protein or AFP works by binding two ice crystals preventing them from growing. AFP is produced in the fish's liver following directions in code and DNA of one gene scientists place the AFP Gene found in flounder into tomatoes what purpose do you think does genetic modification serves FULLY explain and discuss your thoughts.

Answers

Answer:

GMOs, are genetically modified organisms  whose genetic material has been altered using genetic engineering. Genetic engineering is the modification of an organism's phenotype by altering its genetic make-up. Genetic engineering is primarily performed by simple mating or gene recombination. Many have different opinions about using GMO's

Explanation:

the method of passing microorganisms by touching is called:

Answers

Answer:

it is called communicable

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Hello! I need help with this Find the value for each variable. Which sentence from the text reveals Finn's motivation for getting a job? O A. Meanwhile his newspaper delivery route had gotten shorter each year, due to what could have only been the expanding reach of the Internet. O B. So after high school and with college just a summer away-Finn wanted a real paycheck, which is how he found himself sitting in the manager's office of a local ice cream factory o C. Finn had never been to an official job interview before, so he wasn't sure what to expect. o D. Finn introduced the boy to some of the younger campers he knew, and then he delivered the boy back to his cabin, cone in hand and a smile on his face. A fish swims 6 feet directly above a scuba diver. The fish suddenly dives to double its depth under the surface of the ocean. The fish dives to a depth of 42 feet. What is the position of the scuba diver relative to the surface of the ocean? 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Gwen pays the entry fee and buys 10 tickets. It costs her a total of $30. Tristan pays the entry fee and buys 15 tickets. It costs him a total of $40. Keith pays the entry fee and buys 10 tickets. It costs him a total of $30. In this task, you will create a system of equations and find the cost of each ticket. Let x represent the entry fee and y represent the cost of each ticket in dollars.What do you need to do to the equations so you can put them into the Graph tool? Put the equations into the Graph tool. To create the graph, select the correct relationship and then enter the values for the variables. Paste a screenshot of your graph in the space provided. Do you get the same solution as when you solved it algebraically? v=VyV67.2 -8.2 m/sPart BNow let's see if your prediction agrees with the experimental results. There isn't any data at y=-3.5 m, so you'll need to interpolate by zooming inon the relationship between y velocity (W) and y displacement. 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