The amino acid with a side-chain pK_a just below neutrality and which plays an important role as a proton donor and acceptor in many enzyme catalyzed reactions is:

Answers

Answer 1

Answer:py[trfgl[rg'pfk[fc,v

Explanation:

klnxasklxnsal


Related Questions

An experiment was conducted to determine which type of fruit attracts the most fruit flies. Equal sized pieces of apple, pear, and banana were placed in separate containers at different areas around the school. The containers allowed the fruit flies to enter, but the fruit flies were unable to escape. After one day, observations were made by the students. Which best describes an error the students made in the experiment? A) too many types of fruit were used B) fruit flies were unable to escape C) different areas around the school were used D) one day is not long enough for the experiment

Answers

Answer:

C

Explanation:

The error that the student made was to place the containers for the different fruits in different areas around the school.

In order to ensure that each contain receives the same treatment, they should have been placed in the same area around the school. Different areas around the school might have varied populations of fruit flies, hence, jeopardizing the result.

The containers should have been subjected to the same conditions in order to ensure an unbiased outcome.

The correct option is C.

What would be the best positive control when testing for proteins

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Answer:

nbj

Explanation:

Would this be correct? If not please correct me

Answers

Yes it is correct
PLEASE MARK MY ANSWER AS BRAINLIEST

why are trees in the rainforest so tall

Answers

Trees in the rainforest are so tall because they compete for sunlight. Hope this helps!

Answer:

It’s competition for sunlight. Trees in a dense forest are often tall and thin, as each tree is trying to reach sunlight.

Explanation:

Fiddler crabs are invertebrates. That means they do not have a backbone (that's made out of vertebrae). Does this mean they don't have a skeleton?

Answers

Answer:

they do have skeleton which is called exoskeleton, main component is chitin

Fiddler crabs don't have a skeleton. Instead, they occupy a carapace, a rectangular shell. As they expand, the carapace is absorbed, and a new, larger one is produced.

What are invertebrates?

The paraphyletic group of animals known as invertebrates lacks the notochord-derived vertebral column and does not even develop one. Except for the chordate subphylum, all animals fall within this classification.

To assist remove food from sand, they frequently dine in a watery puddle. Because both of a female's claws are little, she has an advantage over a male in terms of finding and consuming food. Feeding is more challenging for older males due of their main claw.

Therefore, fiddler crabs don't have a skeleton.

To learn more about invertebrates, visit here:

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list the four main components of air in their molecular form.

Answers

Answer:

Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.

Explanation:

Kilogram is the SI base unit for measuring
A. length
B. mass
C. volume
D. tempature

Answers

The answer is B. Mass

Answer: The answer is, (B) Mass.

Explanation: Because, The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.

Give an example of solute, solution, and solvent.

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Answer: Saline =  Solution, Salt = Solute and Water = Solvent.

I hope that this helps you !

Is a virus a living organism?why?

Answers

Answer:

Viruses are not made out of cells, they can't keep themselves in a stable state and they can't make their own energy therefore no.

Explanation:

Answer:

no Viruses are considered to be nonliving

Explanation:

Viruses resemble organisms because they can multiply. They are different because they are not alive: they are not cells, they do not use their own energy to grow or respond to their surroundings.

Which is an example of foraging as a benefit of social behavior? A blue jay eats birdseed from a bird feeder. Three lions hunt and capture a zebra. Worker bees build a nest and the queen bee lays eggs. A male chimpanzee mates with several different females

Answers

Three lions hunt and capture a zebra.

Answer:

lions hunt and capture a zebra

Explanation:

in this instance hunting = forging

Is seed germination abiotic or biotic ?

Answers

Answer:

Seed Germination itself isn't abiotic or biotic, but those affect the process of germination.

Explanation:

Biotic factors affecting seed germination include: inheritance to the seed, interactions with other organisms/abiotic factors, (like light, temperature, humidity and fire) affect seed germination differently.

I don’t think it’s either abiotic or biotic.

How do you find the “total magnification of something that you are viewing through a microscope?

Answers

multiply the power of the eyepiece and objective lense Explanation:

Answer:

To figure the total magnification of an image that you are viewing through the microscope is really quite simple. To get the total magnification take the power of the objective (4X, 10X, 40x) and multiply by the power of the eyepiece, usually 10X.

Explanation:

*Hope this helped*

do foxes like chicken? yes or no made by fox

Answers

Answer:

yes

Explanation:

Answer:

yes

Explanation:

__________ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location.a) Lysosomesb) Endosomesc) Peroxisomesd) Nucleosomes

Answers

Peroxisomes is the fairly small organelles that provide a safe place within the cell.

How do grasses enable shrubs to grow?

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Answer: Grasses grow and reproduce quickly. They take over the landscape. Over time, these plants improve the soil and a few shrubs can begin to grow.

Choose all of the physical changes: (There are FOUR) Group of answer choices
tarnish
evaporate
bend
react
melt
explode
dissolve

Answers

Answer:

evaporate, bend, melt, dissolve

Explanation:

Three questions a environmental biologist would ask

Answers

Answer:

is this land consistently like this?

what is the annual precipitation rate?

hiw many animals live here?

Explanation:

these are the kinds of questions asked

Does the number of layers of paper affect the amount of water the paper absorbs?

Answers

Answer:

Yes

Explanation: The more layers, the more water it absorbs.

Write some of the special features of feathers ​

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Answer:

Feathers perform a number of functions for a bird:

1) They provide insulation, body temperature of most birds is maintained at around 40 C.

2) Feathers allow for flight.

3) Feathers control what a bird looks like by supplying the bird with colors.

Explanation:

Feathers insulate birds from water and cold temperatures. They may also be plucked to line the nest and provide insulation to the eggs and young. The individual feathers in the wings and tail play important roles in controlling flight. Some species have a crest of feathers on their heads.

Feathers perform some of the functions for a fowl: 1) They offer insulation, the frame temperature of maximum birds is maintained at around 40 C; 2) Feathers allow for flight; 3) Feathers manage what a chook looks as if by way of imparting the chicken with hues.

What is special about birds' feathers?

Feathers permit birds to fly, but they also assist them to show off, combining in, living warm, and preserving dry. A few feathers advanced as specialized air foil wing-like shape that produces elevate and drag because of their actions via the air for efficient flight.

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Pasteur disproved spontaneous generation by demonstrating that microorganisms did not grow in broth that was heated in swan-neck flasks and then allowed to sit undisturbed for several days. It was important that he placed the broth in control and experimental flasks before heating rather than transferring the broth to new flasks after heating. Why?

Answers

Answer:

See the answer below

Explanation:

It was important for Pasteur to place the broth in the flasks before heating rather than transferring it to new flasks after heating because the new flasks might be a source of contaminants in the form of microorganisms, hence, leading to a biased outcome.

In order to prevent cross-contamination and preserve the integrity of the outcome of the experiment, the broth needed to be placed in the flasks before heating instead of transferring it after heating.

Which of the following is true regarding the structure of enzymes?

Answers

Enzyme function is influenced by physical and chemical environment factors such as pH and temperature.
-Enzymes may require a nonprotein cofactor or ion for catalysis to take place.
-Enzymes increase the rate of chemical reaction by lowering activation energy barriers.

Give an example of a non-testable question:

Answers

Answer:

a non testable question can be, what is better, chips or ice cream?

Explanation:

I need help with this fast please!

Answers

Answer:

its neutrons

Explanation:

I believe the answer is proton

What is cell ? Explain
I will give you brainliest as soon as possible​

Answers

Answer:

Cell is the structural and functional unit of life. It contains special parts called cell organelles, which have definite structures and functions.

Hope it helps :)

what is the main purpose for a plant to move water from the ground into the leaves

Answers

Answer:

The main purpose is for photosynthesis so that it can make food.

Answer:

For the process Photosynthesis.

Explanation:

Leaves need water to produce Chlorophyll and Chlorophyll will be produced by the process known as Photosynthesis.

Which of the 3 major types of water consumption is the most common worldwide?

Answers

Answer:

Hope this helps.

Explanation:

Agriculture is the largest use of water worldwide. A large percentage of water used by agriculture is consumptive water, meaning that the water does not get returned to its source.

largest use of water around the world

Science is based on fact and ______ evidence.

A. subjective
B. empirical
C. hypothetical

Answers

Answer:

The answer is B.

Explanation: Subjective evidence is based on personal suggestions, so that is wrong. Hypothetical is a guess, so it is wrong. So it would be B, since empirical means evidence based on facts and observation.

Hope this helps!

Answer:

The answer is B

Explanation:

The photo is above please answer thank you.

Answers

1. 10
2. 3
3. 27
These are the answers

10 , 3 , 27

add the 5 and the 5 because they are going the same direction.

subtract the 7 from the 10 since they are in opposing directions.

subtract the 12 from the 39 since they are in opposing directions.

Which is a part of interphase?
A. Telophase
B. S phase
C. Anaphase
D. Cytokinesis

next question will be 85 points if some on answers this right now

Answers

Which is a part of interphase?

A. Telophase

B. S phase

C. Anaphase

D. Cytokinesis

Answer:

S phase

What cell is it going to be?

Answers

Answer:b, d

Explanation:

:)

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