12. Cows digest proteins into smaller molecules called peptides through the use of an enzyme called pepsin.
Aqueous solutions taken from the contents of a cow's stomach are found to have many more hydrogen ions
(H+) than hydroxide ions (OH-). A veterinarian is attempting to conduct an experiment that mimics protein
digestion and has the following four test tubes set up. Which would you expect to have the greatest
concentration of peptides?
(A) Test tube 1: protein and pepsin in water at pH 1.4
(B) Test tube 2: protein and pepsin in water at pH 8.2
(C) Test tube 3: protein in water at pH 7.6
(D) Test tube 4: pepsin in water at pH 1.7

Answers

Answer 1
The correct answer would be answer choice A!!!! The reasoning for this is that free H+ ions in a solution DECREASE the pH or in other words make the solution more acidic. So because of that we know that our solution must have a lower pH so we know the correct answer is either A or D because these are acidic solutions. In order for pepsin to catalyze the reaction there must be protein present and because of this we can eliminate answer choice D. So answer choice A is correct.

Related Questions

Which descriptions apply to these two compounds?

Answers

Answer:

atoms and molecules

Explanation:

Proteins can be denatured in many ways.
Which of the following will NOT denature
a protein?
A. pH
B. temperature
C. too many enzymes
D. salt content

Answers

Answer:

Explanation:

However, at very high salt concentration, the increased surface tension of water generates a competition between protein and salt ions for hydration. Salts strip off the essential layer of water molecules from the protein surface eventually denaturing the protein

Too many enzymes cannot denature protein.

Enzymes are a type of protein so  they will not get denatured in presence of one another.Enzymes are proteins that speed up any biochemical reaction in the body.

What is denaturation of protein?It is a process of modifying the molecular structure of a protein.It involve breakage of many of the weak bonds within the protein molecule that are responsible for the structure of protein and its order.It can happen due to high temperature, pH, salt concentration and mechanical concentration.

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Overview of photosynthesis, using the detailed inner structure of a leaf.

Answers

Answer:

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.

Explanation:

7. Observations and inferences are
important in science. How would you
explain the difference between the
two words?


Answers

Hey there! I'm happy to help!

Observations are things that can be written down or described. You can observe something with any of your five senses: you can see what color something turns, you can hear the noise something makes, you can taste a cookie with a different amount of an ingredient, you can smell an odor produced by a chemical reaction, and you can feel the texture of different samples.

You can also create observations by using scientific tools. For example, instead of feeling if water is hot or cold, you could use a thermometer. This will give you numerical data which can be put into a table or graphed for further analyzing.

Inferences are created from observation. You cannot make an inference without observation. Observations lead to inferences. Inferences are conclusions or guesses made from the observations. You could infer that sugar makes a cookie taste sweeter after experimenting with no sugar and observing that it tasted bitter. You could infer that more weight allows things to travel further after going down a ramp after measuring the distances different weights travel, graphing it, and observing the data.

Have a wonderful day and keep on learning! :D

What is a silent mutation?

Answers

Answer:

Mutations in DNA that do not have an observable effect on the organism's phenotype.

Method:

Search Engine

Which term defines a well tested,scientifically supported statement that describes how something happens

Answers

Answer:

The term would be: Theory

Explanation:

A theory is a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained. It is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts.

Answer:

theory

Explanation:

Suppose a rural community lives at the top of a mountain. They hold a community meeting to discuss the following options to use as their main energy source; Hydro-power, wind energy, or biofuel. List their options from the ideal to the least ideal. Explain your answer.

Please answer ASAP... Ill give brainliest​

Answers

wind energy is also expensive to start as theyll need something like a wind turbine to change it to electricity and considering their location winds are strong at mountain tops so this would be very ideal for them once properly established. bio fuel is the cheapest and easiest to start but it has the biggest effect on the environment as theyll be using wood from trees etc which could destroy their land and lead to soil erosion, drought, desertification and land slides.
hydro power is expensive to start but once established it provides a very reliable source of electricity. they live at a mountain top so i doubt there are any rivers to use hep.

what is the definition of Concentration Gradient?​

Answers

Concentration gradient= the difference in the concentration of a substance between two areas.

Which of the following are measurable? (Select all that apply)
✓ How often a plant is watered
✓ How much sunlight a plant receives
Seeing the pretty leaves on a plant
The actual number of new leaves on a plant

Answers

Answer:

a

Explanation:

well of you use a cup to give a plant water you can measure how much it drinks

The measurable factors are A) How often a plant is watered, B) How much sunlight a plant receives, D) The actual number of new leaves on a plant.

Options (A) (B) & (D) are correct.

Measurable factors are those that can be quantified or expressed numerically. A) The frequency of watering can be counted and tracked over time. B) Sunlight can be measured in terms of intensity, duration, or light levels. C) "Seeing pretty leaves" is subjective and not quantifiable.

D) The actual number of new leaves is a concrete count, making it measurable. When studying or managing plants, it's essential to focus on quantifiable aspects, like watering frequency, sunlight exposure, and counts of observable changes, for accurate analysis and decision-making.

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The complete question is:

Which of the following are measurable? (Select all that apply)

A) How often a plant is watered

B) How much sunlight a plant receives

C) Seeing the pretty leaves on a plant

D) The actual number of new leaves on a plant

describe the possible long term effects of HIV on the immune system​

Answers

Explanation:

HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.

What is the summer sleep of frog called??​

Answers

Answer:

answer is aestivation

Explanation:

Love ya bye!

what could a human living millions of years ago have in common

Answers

What are your options, kid?

(*Its actually Physical Science)
Which kind of bond would occur between sodium (Na, Group IA) and chlorine (CI, Group VIIA)?
*I need this ASAP

A. ionic
B. no bond
C. metallic
D. covalent​​

Answers

An ionic bond would form between these two atoms.

Prophage refers to: (please give right answer only)​

Answers

Answer:

: an intracellular form of a bacteriophage in which it is harmless to the host, is usually integrated into the hereditary material of the host, and reproduces when the host does.

What are the homeostatic pressures an axolotl goes through and how do
they deal with that?

Answers

Here is a link to understand the whole concept, of the homeostatic pressures on axolotl: https://www.sciencedirect.com/science/article/pii/S0301008217302113

DNA and Rna are macromolecules made up of what?

Answers

Answer:

Nucleotides

Explanation:

"These macromolecules consist of a large number of linked nucleotides, each composed of a sugar, a phosphate, and a base."

Hope this helps:

DNA, RNA, and the Flow of Genetic Information

https://www.ncbi.nlm.nih.gov/books/NBK21171/

DNA and RNA are macromolecules made up of units called nucleotides.

What are nucleotides?A nucleotide is the most fundamental element of nucleic acids (RNA and DNA). A sugar molecule (ribose in RNA or deoxyribose in DNA) is bonded to a phosphate group and a nitrogen base to form a nucleotide. Adenine (A), cytosine (C), guanine (G), and thymine (T) are the bases that make up DNA. The base uracil (U) replaces for thymine in RNA. Long chains of nucleotides make up DNA and RNA molecules, which are polymers.

hence nucleic acids like DNA and RNA are made up of nucleotides

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Identify the Levels of Organization in a Multicellular Organism

1: Cells

2: Organ System

3: Tissue

4: Organ

DONE!

Answers

Answer:

2 3 4. is the correct answer

if your leg was to get cut off where would you feel the pain?

Answers

The thigh area will feel much more pain as when leg is cut off , all nerves are together in thighs, so more pain will be there.

Hope it helps you... pls mark brainliest if it helped you

Answer:

The nerve(s) in your leg.

Explanation:

It's not your leg that will hurt but the nerve in your leg. So wherever the leg is cut, the nerves will have to be cut as well, but also after one of your limbs is amputated, you may feel like the limb is still there. That's called phantom sensation. You might feel pain in your limb even though it is physically not there.

2. A nucleus contains tiny rod-shaped
boll bodies. What are they called?

Answers

A nucleus is something that idek what ur talking abt
the answer is nucleus

A steel bar has a mass of 80 kilograms and a density of 8,000 kilograms per cubic meter.
Calculate its volume.

Write your answer to the hundredths place.

Answers

Volume = Mass/density = 80/8000= 0.01 M³

Proteins are one of the four main
types of
biomolecules
O living
O complex

Answers

I would have to go with O complex.

Hello i need help with this it’s just short (The subject is science and Im sorry if i got the subject wrong from the above) Thank you in advance <3

1. Forest ecosystems provide all of the following functions EXCEPT;

a. producing oxygen
b. controlling soil erosion
c. removing carbon from the atmosphere
d. lowering the biodiversity of the plant

2. Extinction is a natural process that occurs when the last member of a species does. Which of the following correctly arranges the mass extinction events from earliest to latest?

a. Cretaceous-Tertiary, Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic

b. Late Devonian, Cretaceous-Tertiary, Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic

c. Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic, Cretaceous-Tertiary

d. Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic, Late Devonian, Cretaceous-Tertiary

3. Which contributes the most biodiversity loss?

a. habitat destruction b. pollution
c. invasive species d. population growth

4. Extinction can be caused by a Natural Phenomenon such as storm, flash floods, or Anthropogenic (Human made). Which of the following is believed to be the major and most impactful anthropogenic cause of extinction?

a. habitat destruction b. overpopulation
c. overexploitation d. pollution

5. Which of the following is not a benefit that tress can provide?

a. They can trap sediments and runoffs that help improve water quality.
b. They prevent the excessive warming of the planet by sequestering Carbon dioxide.
c. They serve as filters that rid the air of harmful pollutants and toxic gases.
d. None of the above.

Answers

Answer:

1. Lowering Biodiversity of the plant

2. I think it is B

3. Habitat Destruction

5. None of the Above

Explanation:

Answer:

1. d

2.c

3.a

4.a

5.d

Explanation:

1. Forests ecosystem have high biodiversity

3.Habitat loss from exploitation of resources, agricultural conversion, and urbanization is the largest factor contributing to the loss of biodiversity. The consequent fragmentation of habitat results in small isolated patches of land that cannot maintain populations of species into the future.

4.It is currently the biggest cause of current extinctions. Deforestation has killed off more species than we can count.

5. Im not sure.

   It may be ans c. As Trees absorb  toxic chemicals through their stomata, or 'pores', effectively filtering chemicals from the air.

A theory Group of answer choices is always true. may be revised or replaced. is a problem to be solved.

Answers

Answer:

may be revised or replaced

Explanation:

theories are an explanation that is based on current knowledge and may be changed after new discoveries

Choose something about that a scientist may want to learn about a newly discovered species of dinosaurs

Answers

Answer:

A scientist might want to know their DNA

___________ neurons carry signals from sensory nerves to the Central Nervous System.

Answers

Afferent neurons.

What is it : Afferent neurons are sensory nerves
These are sensory neurons carrying nerve impulses from sensory stimuli toward the central nervous system and brain. Afferent neurons carry signals to the brain and spinal cord as sensory data.

Which statement does not apply to the human egg

Cannot move on its own

produced at one at a time

contains enzymes to break down cell walls

contain’s food stores

Answers

Answer:

produced at one at a time.

Explanation:

human egg are not produced only at one time.

How is WHAM related to Nucleic Acids?

Answers

Answer:

Nucleic acid is an important class of macromolecules found in all cells and viruses. ... Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.

Explanation:

A DNA segment is changed from AATTAG to AAATAG. What type of mutation is this and what is its effect on the genetic variation of a population?

A.
The mutation is a substitution which causes a decrease in the genetic variation of a population.

B.
The mutation is an insertion which causes a decrease in the genetic variation of a population.

C.
The mutation is an insertion which causes an increase in the genetic variation of a population.

D.
The mutation is a substitution which causes an increase in genetic variation of a population.

Answers

The mutation from AATTAG to AAATAG is a substitution which causes an increase in genetic variation of a population.

MUTATION:

Mutation refers to any change in the nucleotide sequence of DNA molecule. Mutation can be of different types depending on how it occurs.

A substitution mutation is that in which one or more nucleotide base is replaced by another in the sequence.

In this question, an original sequence of DNA is given as AATTAG. It was mutated to AAATAG via the replacement of 'T' with 'A'. This means that it is a substitution mutation.

However, this mutation will cause an increase in the genetic variation i.e. difference in a population.

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Which best supports the part of the cell theory which states “the cell is the smallest unit of living things”?

Answers

Answer:

because it is the basic unit of life

A child receives an x chromosome from its mother and a y chromosome from its father.What is true about this child?

Answers

they are male due to the XY chromosomes

There is cute I’m guess
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