Quick Biochemistry - Mineral Metabolism (Section 5)
1
What does the proportion of absorbed dietary nitrogen that the body keeps signify?
Answer(B)
Proteins' Biological Value
2
What does the gain in body weight (in grams) per gram of protein intake indicate?
3
What does the fraction of ingested food nitrogen that the body retains signify?
4
To calculate the chemical score of various proteins, what protein type is the benchmark?
5
What is the Biological Value of protein from eggs?
6
What is the Biological Value of protein from cow's milk?
7
What is the Biological Value of protein from soybeans?
8
Which condition results in a lower level of bicarbonate in plasma?
9
Which condition is linked to a higher concentration of bicarbonate in plasma?
10
Under which circumstances is there an elevation in total CO₂?
Answer(C)
Both respiratory acidosis and metabolic alkalosis
11
What leads to respiratory acidosis?
Answer(A)
Elevated levels of carbonic acid compared to bicarbonate
12
What typically results in respiratory alkalosis?
Answer(C)
A decrease in the proportion of carbonic acid
13
Which condition can be caused by meningitis and encephalitis?
14
In which scenario is metabolic acidosis often observed?
Answer(A)
Uncontrolled diabetes with ketosis
15
Which of the following is linked to metabolic acidosis?
16
Under what circumstances does respiratory acidosis tend to develop?
Answer(A)
Conditions that hinder breathing, such as emphysema
17
What is a common cause of metabolic alkalosis?
Answer(A)
High intestinal obstruction
18
Which condition frequently leads to respiratory alkalosis?
Answer(A)
Hysterical hyperventilation
19
What type of acid-base disturbance is commonly associated with morphine poisoning?
20
Early-stage salicylate poisoning tends to result in which acid-base imbalance?
21
Which of the following compounds is least likely to participate in redox reactions?
22
What metal is universally found in oxidases?
23
What type of enzyme is isocitrate dehydrogenase?
24
Which of the following molecules utilizes iron-pophyrin as a prosthetic group?
25
What type of oxygenase is found in the microsomal hydroxylase system?
26
How are superoxide radicals neutralized?
27
Which cytochrome contains copper?
28
Which of the following cellular conditions would most likely increase the rate of tissue respiration?
29
Which component of the respiratory chain is not bound to the inner mitochondrial membrane?
30
In certain biochemical processes, what molecule serves as an energy carrier?
31
In which metabolic process does substrate-level phosphorylation take place?
Answer(C)
Both Glycolysis and Citric acid cycle
32
What enzyme(s) can neutralize hydrogen peroxide without an oxygen acceptor?
33
Which enzyme is responsible for detoxifying superoxide radicals?
Answer(C)
Both Cytochrome c and Superoxide dismutase
34
What type of porphyrin is found in haem?
35
Which amino acid is essential for the creation of porphyrins?
36
Which coenzyme plays a vital role in the synthesis of porphyrins?
Answer(C)
Both Coenzyme A and Pyridoxal phosphate
37
What enzyme acts as the control point in the production of haem?
38
How is the production of haem regulated?
39
Which molecule exhibits a sigmoidal oxygen dissociation curve?
40
From which form of haemoglobin can cyanmethaemoglobin be produced?
41
In which condition is an amino acid replaced within a chain?
42
Which condition involves a congenital deficiency of haem synthetase?
43
During haem breakdown, which methenyl bridge is disrupted between pyrrole rings?
44
What is a cause of pre-hepatic jaundice?
45
In which type of jaundice can kernicterus develop?
46
In which condition are bile pigments absent from urine?
47
In which condition is serum alkaline phosphatase significantly elevated?
48
In which condition is the active transport system for bilirubin uptake congenitally faulty?
49
Which condition involves the absence of bilirubin UDP-glucuronyl transferase in the liver?
Answer(A)
Crigler-Najjar syndrome, type I
50
In what substance is unconjugated bilirubin soluble?
