True or False. The catalase test is a qualitative and selective assay.

Question

BlackTom AI · Accepted Answer

The question asks to evaluate the statement about the catalase test.
Option 1: 'True' — The claim that the catalase test is a qualitative and selective assay. While the catalase test is indeed qualitative, detecting bubbles as a readout of catalase activity, it is not selective. It does not select for organisms or preferentially isolate them; it simply indicates the presence or absence of the catalase enzyme in a given organism. Therefore labeling it as selective is inaccurate, making this option incorrect.
Option 2: 'False' — This option correctly identifies the inaccuracy in the statement. The catalase test is qualitative (it yields a positive or negative result based on bubble production) but it is not selective (it does not favor or distinguish among organisms in a selective way). The misunderstanding lies in combining qualitative with selective, which does not reflect how the test functions in practice. Hence, this choice is correct in indicating that the original statement is false.
In summary, the core idea is that the catalase test provides a qualitative result regarding enzyme presence, but it does not act as a selective assay, so the assertion as a whole is incorrect.

True or False. The catalase test is a qualitative and selective assay.判断题

类似问题

Which of the following statements best describes the implication of catalase test results in relations to a bacterium's ability to survive in oxygen-rich environments?

Using the catalase test, a Staphylococcus sample would be:

Question at position 8 An excess of growth hormone (GH) before puberty can result in the development ofgigantism.Graves' disease.acromegaly.pituitary dwarfism.Clear my selection

Question at position 6 The most abundant supporting cells in the central nervous system are called Question Blank 1 of 1[input].

Question at position 5 In the eye, the lens functions tofocus light on the retina at the back of the eye.protect the surface of the eye.increase vision in low-light conditions.move the eye side to side.Clear my selection

Question at position 4 Olfactory (odor) receptors are chemoreceptors. TrueFalse

If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.00, which of the following is TRUE?

Identify the missing particle in the following nuclear equation: 92 236 𝑈 → 38 90 𝑆 𝑟 + ? + 2 0 1 𝑛 + 4 0 0 𝑔

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单