What is the approximate maximum rate of plasma protein formation by the liver per day?

Correct answer: 30 grams per day

Explanation

The liver has a very high capacity for synthesizing plasma proteins, capable of producing up to 30 grams per day. This rapid production is crucial for replacing proteins lost during certain disease states, such as severe burns or renal disease.

Other questions

Question 1

Why does the amino acid concentration in the blood typically only increase by a few milligrams per deciliter after a meal, despite the absorption of amino acids from digested proteins?

Question 2

How do significant quantities of amino acids move into tissue cells from the blood, considering their molecular size?

Question 3

According to Figure 70-1 and its caption, how many essential amino acids must be obtained from food because they cannot be synthesized in sufficient quantities by the body?

Question 4

What is the primary form in which amino acids are stored within tissue cells?

Question 5

Which types of intracellular proteins do not significantly participate in the reverse process of being decomposed back into amino acids for transport out of the cell?

Question 6

What does the concept of 'Reversible Equilibrium Between the Proteins in Different Parts of the Body' imply?

Question 7

What is the primary function of albumin, one of the major plasma proteins?

Question 8

Where are essentially all the albumin and fibrinogen of the plasma proteins formed?

Question 10

How do plasma proteins serve as a source of amino acids for the tissues when tissue proteins are depleted?

Question 11

What does the term 'essential' signify in the context of 'essential amino acids'?

Question 12

What is the primary fate of excess amino acids in the circulation after the body's cells have reached their protein storage limit?

Question 13

The synthesis of nonessential amino acids in the body depends mainly on the formation of what precursor molecules?

Question 14

What is the process called 'deamination,' and what is its main purpose in protein metabolism?

Question 15

What is the net reaction for the formation of urea in the liver?

Question 16

What is the consequence of serious liver disease or the absence of a liver on blood ammonia levels?

Question 17

What is the term for the 20 to 30 grams of body protein that are degraded, deaminated, and oxidized each day, even when a person eats no proteins?

Question 18

Why is a dietary protein that has a ratio of amino acids different from that of the average body protein considered less valuable for nutrition?

Question 19

Why are carbohydrates and fats referred to as 'protein sparers'?

Question 20

How does growth hormone primarily increase the synthesis of cellular proteins?

Question 21

What is the effect of a total lack of insulin on protein synthesis?

Question 22

What is the primary effect of glucocorticoids, such as cortisol, on protein metabolism in most tissues?

Question 23

How does the effect of testosterone on protein deposition differ from that of growth hormone?

Question 24

Under what condition can thyroxine actually increase the rate of protein synthesis?

Question 25

What is the turnover rate of amino acids in the body, as suggested by the text?

Question 26

According to the text, what is the fate of excess amino acids in the glomerular filtrate that cannot be actively reabsorbed by the renal tubules?

Question 27

Which tissues are mentioned as being particularly significant in the storage of rapidly exchangeable proteins?

Question 28

What is the primary role of globulins in the plasma, aside from their enzymatic functions?

Question 29

In a person with cirrhosis of the liver, what is the consequence of the reduced ability to synthesize plasma proteins?

Question 30

The process of transamination, which is key for both synthesizing and degrading amino acids, is promoted by aminotransferases that are derivatives of which vitamin?

Question 31

According to the text, what is the ratio of total tissue proteins to total plasma proteins in the body, which remains relatively constant even during starvation?

Question 32

What is 'gluconeogenesis' in the context of amino acid metabolism?

Question 33

What is 'ketogenesis' in the context of amino acid metabolism?

Question 34

What happens to tissue proteins after several weeks of starvation, once stored carbohydrates and fats begin to run out?

Question 35

What hormone is necessary for protein synthesis, to the extent that its total lack reduces protein synthesis to almost zero?

Question 36

How do glucocorticoids affect the proteins in the liver, in contrast to their effect on most other body tissues?

Question 37

What is the approximate increase in muscle contractile proteins caused by testosterone?

Question 38

What happens if a person with severe renal disease loses 20 grams of plasma protein in the urine each day for months?

Question 39

How much of the body's protein is estimated to be synthesized and degraded each day as part of the continual flux of amino acids?

Question 40

Intravenous transfusion of plasma protein is an effective therapy for severe, acute whole-body protein deficiency because...

Question 41

What is the keto acid precursor of the amino acid alanine?

Question 42

Which amino acid is described as being present in large quantities in the tissues and serving as an 'amino radical storehouse'?

Question 43

What is the primary substance to which the amino group from an amino acid is transferred during deamination?

Question 44

In the process of deamination, after glutamic acid is formed by accepting an amino group, what does it become when it loses the amino group again?

Question 45

What is the primary role of the urea cycle?

Question 46

What are the two successive processes involved in the oxidation of deaminated amino acids for energy?

Question 47

A protein that has a ratio of amino acids different from that of the average body protein is called a:

Question 48

Which hormone is NOT listed as increasing the formation or deposition of tissue proteins?

Question 49

What is the primary product of protein digestion and absorption in the gastrointestinal tract?

Question 50

What happens to plasma amino acid concentrations when they fall below normal levels?