20. Allosteric effectors: a. can cause large changes in enzymatic activity. b. can lead to a decrease in the availability of a protein. c. do not alter the sensitivity of a metabolic pathway. d. decrease the sensitivity of the enzyme at nearly all concentrations of substrate. e. alter enzyme activity by binding to the active site of an enzyme.

Answers

Answer 1

Answer:

a. can cause large changes in enzymatic activity.

Explanation:

An enzyme refers to a biological catalyst that is typically used to speed up (accelerate) the rate of a chemical reaction by lowering the activation energy of its reactants.

When the activation energy of a reaction is low, the rate of the reaction would be faster. Therefore, an enzyme speeds or catalyzes the rate of a reaction by lowering its activation energy. Also, if the conditions are not optimal for an enzyme, it limits the ability of an enzyme to bind or be joined with its substrates. An increase in temperature increases or speeds up the rate of a reaction while low temperature limits or reduces the rate of a reaction. The optimal temperature for enzymes in the human body is around 37 degrees celsius.

An allosteric effector can be defined as an agent, organ or molecule that is being binded to an enzyme at a site, thereby causing a reduction (negative effect) or an increase (positive effect) in an enzyme activity.

Hence, an allosteric effector can cause large changes in enzymatic activity because it acts as an intermediary and mediates specific effect in a metabolic pathway.


Related Questions

Discuss the difference between improvisation and adaptability

Answers

Answer:

Adapting is when you slowly adapt to the environment or the thing you are doing, while improvisation is when you improvise in order to achieve success in a shorter amount of time.

Explanation:

Members of the Kingdom Plantae are characterized by _ while members of the Kingdom Fungi are characterized by ---

cell walls of cellulose; cell walls of chitin

heterotrophy, autotrophy

mostly unicellular organisms; having segmented bodies with jointed appendages

having segmented bodies with jointed appendages; mostly unicellular organisms
d

Answers

I am pretty sure it is A

Answer:

Heterotrophy, Autotrophy

Reasoning: Heterotrophy organisms are organisms who can't retrieve food themselves and use energy and sunlight in order to get their food, which is exactly what plant cells do. Autotrophy is the ability to produce things such as carbon dioxide and oxygen, which plants do as well. Hence, Heterotrophy and Autotrophy are the most reasonable answers.


help!! Plsss ASAP really neee it

Answers

Prokaryotic Cells
Hope this Helps! :D

The endocrine system and the nervous system both send messages that control processes in other parts of the body. Which is an example of a process caused mainly by the endocrine system?
A. developing allergies to pollen, pet hair, or specific foods
B. regulating growth and functions of certain body organs
C. improving your skills at a sport or other physical activity
D.pulling your hand away when you touch a hot stove

Which picture above accurately shows an example of the circulatory organ system in a zebra?
A. figure 2
B. figure 3
C. figure 4
D. figure 5

Answers

B. They regulate growth and function of certain body organs. This system releases hormone and sends signals to the body for when to grow, or when you need to drink and releases adrenaline.

Figure 3. A heart is a main part of the circulatory system.

In cystic fibrosis, an important protein destined for the plasma membrane never makes it beyond the Golgi complex. This protein is necessary for Na and Cl- transport and is critical for maintaining mucous secretions of the appropriate consistency. Devise an explanation for why this may occur.

Answers

Answer:

The correct answer is - Golgi apparatus marks or tags on this protein as incorrect or dysfunctional tags which then prevents it from transported to the membrane.

Explanation:

The role of the Golgi apparatus is to process and package the proteins produced and come from ER and transfer them to the plasma membrane in order to transfer them to their target sites.

The Golgi apparatus marks or tags the proteins that are incorrect or dysfunctional, in order to prevent these proteins from transporting to the plasma membrane and harm the membrane. In CF, the case is similar as the Golgi apparatus tags these proteins as incorrect or dysfunctional.

How can scientists predict the muscle size of an animal?
O Scientist can make inferences based on the location fossils are found.
O Some fossils contain muscle tissues.
O Scientists can make inferences based on the type of climate that animal lived in.
O Bone scars give clues about the muscle size.




THIS IS ABOUT FOSSILS

Answers

Answer:

the answer is: bone scars give clues

Explanation:

Answer:

the answer is bone scars give clues about the muscle size

Explanation:

Which of the following is not one of the principles of natural selection?
O variation
O more offspring than can survive
O finite resources
O infinite resources

Answers

b


i took this test already

Answer:

Infinite resources

Explanation:

There will not always be shelter, food, water, etc...

(26-29) Show a cross between the following parents of different blood types
and determine the probability of their child's blood type.

Answers

Answer:

Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive. For example, if an O gene is paired with an A gene, the blood type will be A.

Explanation:

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When the temperature of the air increases, the speed of the molecules that make up air decreases. true or false?

Next,

_________________ can enter and leave a closed system through radiation and conduction.

A. Matter

B. Energy

C. Molecules

D. Mass
Please help, 6th grade!

Answers

i think it’s between b, c, and d
I’m pretty sure it’s B. Energy

PLEASE HELP ASAP
A diagram of meiosis I is shown below.

At which stage of meiosis I does the exchange in genetic material between homologous chromosomes result in recombinant chromosomes?

prophase I
metaphase I
anaphase I
telophase I

Answers

Answer:

The correct answer is - prophase I

Explanation:

Crossing over or recombination is the event that takes place during the pachytene stage of Prophase I of Meiosis I. During this event, the exchange in genetic material between non-sister chromatids of homologous chromosomes results in the recombination of the genetic material or recombinant chromosome.

Prophase I is the first stage which is characterized by the condensation of the chromosome and form tetrad and appeared to be X like structure in the cell and followed by the crossing over or genetic exchange of homologous chromosomes.


Identical twins, who have inherited a gene associated with obesity, are adopted by different families. One is growing up in a very health
conscious family, while the other is growing up in a family that eats a lot of fast food and never exercises. Which statement describes the
likely weights upon reaching adulthood (correct answer will get brainliest) please answer :(

Answers

Answer: it’s c mister

Explanation:

Which of the following best illustrates a natural process acting as a constructive force?
A.
A river eroding soil during a flood.
B.
Acid rain breaking down the surface of a rock.
C.
A glacier weathering a mountainside.
D.
Wind depositing sand to build up sand dunes.

Answers

Answer:

D

Explanation:

because wind is depositing sand to build

Wind depositing sand to build up sand dunes best illustrates a natural process acting as a constructive force. Therefore, the correct option is D.

What is a constructive force?

Constructive forces are the forces that are responsible for the formation of new landforms on the surface of the earth, such as deposition, earthquake, volcanoes etc.

Wind depositing sand to build up sand dunes is the natural process depicting the constructive force  because sand dunes are formed by constructive forces that add sediment to an area, in this case, wind depositing sand.

Option A is incorrect because river erosion is a destructive force that wears away soil and rock, rather than building it up. Option B and option C are also destructive forces. Therefore, the correct option is D.

Learn more about constructive force, here:

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What unit do Scientists use to measure force?

A Newton
B Gram
C Meters
D Seconds

Answers

Answer:

They use Newton to measure force

Explanation:

The following are examples of chemical energy
a. Natural gas
b. Wood
c. Coal
d. All of the above

Answers

Answer:

ANS= ALL OF THE ABOVE ARE THE CHEMICAL ENERGY.

How are bees vital to our ecosystem? Describe what could happen if bees were to disappear from ecosystem Earth and what the consequences would be. In general, use WHO, WHAT, WHEN, WHERE, and WHY “are bees” DYING off. Lastly, how could We as humans integrate Bee hives efficiency in our own society?

Answers

Answer:

They are pollinators.

Explanation:

Bees are vital to our ecosystem because they are pollinators and due to this pollination, these bees are responsible for the presence of trees, shrubs and other small plants etc. if bees were to disappear from ecosystem Earth then the whole world is adversely affected because trees can't produces fruits and seeds so after sometime animals die due to unavailability of food. Human activities are responsible for the death of these bees because human activities causes pollution which is not good for bees. We have to make a safe place for bees and grow as many flowers as you can in order to increase their population.

The main job of a leaf is to make
food
carbon dioxide
energy
chlorophyll

Answers

Answer:

Energy (food)

Explanation:

It produces oxygen for us to breathe by taking IN the carbon dioxide , Food and energy which is glucose and the chlorophyll is inside the leaf specialized for making energy. Let me know if its correct

Which of the following reasons for studying botany is most directly related to increased profits?
O Studying botany helps companies develop more abundant food crops for less investment.
O Studying botany can help us keep our forests healthy.
O Studying botany provides a chance to go on to graduate school.
O Studying botany tells us more about our place in nature.

Answers

Answer: Studying botany helps companies develop more abundant food crops for less investment

Explanation:

The reasons for studying botany that is most directly related to increased profits was that "Studying botany helps companies develop more abundant food crops for less investment".

Since more food crops are gotten for less investment, it ultimately means that there'll be a reduction in the cost which will hence lead to an increase in revenue and therefore there'll be an increase in profit.

1. Scientific Question: How does the size of a brown anole lizard hatchling affect its chances of survival?

Brown anoles are very small when they hatch out of the egg. Because of their small size, these anole hatchlings are eaten by many different animals, including birds, crabs, other species of anole lizards, and even adult brown anoles! ... Juvenile anoles that get eaten by predators will not survive to reproduce.


2. Independent variable:
brown anole
3. Dependent variable:
green anole



Scientific Data: Use the graph above to answer the scientific question


Analyze the Data:


4. What pattern do you notice within the data?




Interpret the data:


Make a claim that answers the scientific question listed above the table.


Give 3 separate evidences from the data to support your claim. Reference specific parts of the table or graph.


Explain your reasoning and why the evidence supports your claim. Connect the data back to what you learned about the role predation plays for young anole lizards.


5. Using the hints above, create a CER.




Apply the data:


6. Apply all 4 principles of natural selection to the anole lizards. (Overproduction, Variation, Competition, Selection)

Answers

Answer:

3

Explanation:

4
In this paragraph, does the word "once" help show a cause-and-effect
relationship? Support your answer with evidence from the text.

Answers

The answer would be more clear if you added the supporting paragraph. Could you please comment it, so I can properly answer you, and help give evidence? Thanks!

Please answer fast!

Answers

Answer:

C

Explanation:

What are 3 examples of a mutualistic relationship between organisms ?

Answers

Bee and flower
Spider crab and algae
Bacteria and human
^ make his brainlist

What should you do if you mention the work of other scientists in your own reports?
A.Cite your references and give credit to the other scientist.
B.Avoid saying that the work was done by someone else.
C.Change the other scientists ideas to match your own.
D.Avoid mentioning the name of the other scientist.

Answers

A. I’d you don’t cite your references, it is considered plagiarism.

Question 11 of 25
Which represents a negative impact of technology?
A. Accessible technology
B. Production of waste
C. Access to more resources
D. Improvement in climate
SIMIT

Answers

B, production of waste

walrus often dive for 5 to 8 minutes suggest why having over three times as many red blood cell as humans help them perform this function

Answers

Mammals are relatively complex and intelligent animals.

They give birth to live offspring, have hair or fur on their bodies, and possess mammary glands that produce milk for their young. They breath air with lungs and have ears that stick out instead of the earholes, such as what reptiles and birds have.

Walrus often dive for 5 to 8 minutes because their red blood cells (that carry the oxygen) are exceptionally large. In addition, they have lots of myoglobin in their muscles that can store oxygen.

Why do Walrus have high blood circulation?The walrus can remain under the surface of the water for up to 10 minutes. They will usually surface every 5 to 8 minutes to get air and stay at the surface for about 1 minute. They will stay in the shallow waters, no more than 262 feet below the surface.When they dive the blood flow is cut off from their skin, extremities, and stomach. All of these adaptations allow for efficient and lengthy use of oxygen stores. They have a larger percentage of blood in their bodies to carry oxygen, about 12 percent of their weight as compared to only 7 percent for humans.

To learn more about Walrus, refer to:https://brainly.com/question/25164635

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will mark brainliest if correct

if all the green plants were removed from the community how might the flow of energy be effected

Answers

If all the green plants were removed from the community the flow of energy to both animals and humans would stop. Through photosynthesis, plants convert the suns energy into oxygen that living creatures need to survive. Plant also remove carbon dioxide from the air, which can be toxic at about one percent concentration.

Help please asap Need answer please asap

Answers

Division that makes offspring= mitosis
division to make unique individuals= meiosis
division that happens in body cells= both
division that happen in sex cells=meiosis
division to make clones= mitosis

Answer:

Explanation:

Look below

Is the kingdom monera prokaryotic or eukaryotic

Answers

they are prokaryotic

Explanation:

the kingdom monera is under the bacteria family so it has no membrane bound organelles

The kingdom monera is prokaryotic. Monera is a kingdom of organisms which lack a defined nucleus of organelles, nor do any of them show multi-cellular body designs.

5) If a body cell contains 50 chromosomes, how many
will exist in its gametes?
25

Answers

Answer:

25

Explanation:

gametes are haploid cells and body cells are diploid. when a diploid cell undergo meiosis it will produce haploid gametes with half number of chromosomes. in this case body cell has 50 chromosomes so their gametes have only 25 chromosomes.

A museum curator collects fossils from two different periods. He has 400 from one period and 204 from a later period. He plans to arrange the fossils in display cases so that each case contains the same number of fossils. Also, each case must contain fossils from only one period. What is the largest number of fossils that can be placed in each case

Answers

Answer:

4

Explanation:

Number of fossils collected over period 1:

400

Number of fossils collected at a later period :

204

For each display case to have the same number of fossils ; the greatest number of fossils possible per case:

Obtain the greatest common factor of both 400 and 204

400 = 1, 2, 4, 5, 8, 10, 25, 40, 50, 80, 100, 200, 400

204 = 1, 2, 3, 4, 6, 12, 17, 34, 51, 102

Hence, the greatest common factor (400 and 204) is 4

Hence, the greatest Number of Fossil possible per case = 4

Which deep-water body is a unique feature of the Southern Ocean?

HELPPPPPPPPPPPPPPPPPPP PLSZSSSSSSSS!!!!!!!!!!!

Answers

Answer:

The Southern Ocean, also known as the Antarctic Ocean or the Austral Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. As such, it is regarded as the second-smallest of the five principal oceanic divisions: smaller than the Pacific, Atlantic, and Indian oceans but larger than the Arctic Ocean. Over the past 30 years, the Southern Ocean has been subject to rapid climate change, which has led to changes in the marine ecosystem.

More to the Question:

The (blank) water is a saline, cold, and dense body of water lying deep in the Southern Ocean, traveling northward.

Antarctic Bottom

Explanation:

I don't know if this will help, Hope it does.

Sorry :( if it does not

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