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2 years ago

If Pepsin and Trypsin had to function together, which PH would produce the highest activity? How is this answer found?

2 answers:

8 0

The proper environments for Pepsin are acidic, particularly those with a pH of 1.5 to 2. Optimal operating pH for Trypsins is of about 8. It seems that the highest level of activity for the two if they were in the same environment would have to be midway between their optimum range - about pH 5.

Nostrana [21]2 years ago

3 0

Answer:

At neutral pH.

Explanation:

Trypsin and pepsin are protease enzymes that help in breakdown of large protein molecules. These enzymes are known as digestive enzymes as tripsin is produced by pancreas and pepsin is produced by stomach for digestion.

As pepsin acts on proteins in stomach, it works optimally at acidic pH. This is pH of stomach is acidic due to hydrochloric acid, produced by cells of stomach.

On the other hand, trypsin works optimally at basic pH. This is because trypsin acts on protein molecules in small intestine, where pH is slight basic due to sodium bicarbonate ions.

Thus, if pepsin and trypsin have to function together, they will show highest activity at neutral pH (pH between acidic and basic pH).

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Each of the following statements concerning hair is true except

Levart [38]

Answer: A. scalp hairs grow constantly throughout life.

Explanation:

Hair is a squamous keratinized epithelium which is consist of multi-layered flat cells. Hair are made up of protein called "keratin".

The statement "scalp hairs grow constantly throughout life" is false because at a particular age or due to several factors scalp hairs stop growing.

Scalp hair growth rate depends on three main factors including sex (female hair grows faster than male), age (hair growth slows with age), and ethnicity (Asian hair grows slower than Caucasian hair).

Scalp hair growth stops because of follicle devitalization when the hair length become two or three feet.

Hence, the correct answer is A. "scalp hairs grow constantly throughout life".

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2 years ago

How would a scientist have made the distinction between a unicellular and a multicellular organism in the 17th century(1600s), t

Drupady [299]

Using a microscope

Explanation:

A microscope is a scientific device used for magnifying and studying very tiny features.

It was invented by Anton Von Leeuwenhoek in the 17th century.

A unicellular organism is an organism made up of a single cell.
A multi-cellular organism is made up of several cells.
A cell is a very small microscopic structure.
It is usually described as the fundamental unit of life.
Due to its small size, the naked eyes cannot see it
The invention of the microscope opened up the world of cells.
Since they have been around for a long time, distinction of cells would have been made possible at those times using a microscope.

learn more:

Microscope brainly.com/question/4065308

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2 years ago

A motor unit is Group of answer choices 1. many myofibrils in a sarcolemma. 2. many motor end plates at a neuromuscular junction

Vladimir [108]

Answer:

A motor unit is a group of MOTOR NEURON and the MUSCLE FIBERS connected to it.

Explanation:

Neuron is the structural and functional unit of nervous system.

Motor unit consists of a motor neuron and the skeletal muscles innervated by the terminals of the neuron.

Several associated motor units called motor pool coordinates together the contractions of a single muscle.

That is, the activation of a motor unit leads to the contraction of all the muscle fibers attached to it.

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2 years ago

The tropical regions are warmer than the polar regions due to the angle of the Sun's rays. As a result, there is generally highe

Rashid [163]

Answer:

the answer is on letter B

Explanation:

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2 years ago

Read 2 more answers

sometimes errors occur during transcription or translation. Examine the codon chart on the previous page.Notice that each amino

Marianna [84]

Please make sure that you post a complete question. This is the part missing:
- <span>How might this offset transcription or translation errors?-

The existence of several codons that code for the same amino acid ensure that even when a mistake in the processes of transcribing the sequence from DNA to mRNA or translational errors, there is still a significant chance of correct amino acid being added to the protein.</span>

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2 years ago