Practice Questions

TLS Online TPP Program

#Question id: 40413

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): After the washing with alcohol (decolorization step), Gram-positive bacteria retain the purple color, while Gram-negative bacteria become colorless.
Reason (R): Gram-positive bacteria have a thick peptidoglycan layer that traps the Crystal Violet-Iodine complex, whereas Gram-negative bacteria have a high lipid content in their outer membrane which dissolves in alcohol.

#Applied Microbiology

Both (A) and (R) are correct and (R) is the correct explanation of (A).
Both (A) and (R) are correct but (R) is NOT the correct explanation of (A).
(A) is correct but (R) is not correct.
(A) is not correct but (R) is correct.

More Questions

TLS Online TPP Program

#Question id: 33432

#Biochemistry

Complete oxidation of 17C fatty acids generates

TLS Online TPP Program

#Question id: 33433

#Biochemistry

Match the following

TLS Online TPP Program

#Question id: 34123

#Biochemistry

A neuroscientist is studying communication between the hypothalamus and pituitary in a rat model. She interrupts blood flow through the median eminence and then measures circulating levels of pituitary hormones. Secretion of which of the following hormones will be unaffected by the experimental manipulation?

TLS Online TPP Program

#Question id: 34124

#Biochemistry

Which of the following is produced only by large amounts of glucocorticoids?

TLS Online TPP Program

#Question id: 34127

#Biochemistry

Which of the following hormones has the shortest plasma half-life?

TLS Online TPP Program

#Question id: 34128

#Biochemistry

Mole for mole, which of the following has the greatest effect on Na⁺ excretion?