객관식
A neon atom (Ne) is unreactive for which of the following reasons?
a) It has 7 valence electrons.
b) It has 8 valence electrons.
c) Its valence shell is full of electrons.
d) It has 20 valence electrons.
e) b and c only.
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3. Chemical Principles of Microbiology
Atoms- Smallest Unit of Matter
문제 6
교과서 질문
The term trace elements refers to
a. The elements CHONPS.
b. Vitamins.
c. Nitrogen, phosphorus, and sulfur.
d. Small mineral requirements.
e. Toxic substances.
검증된 단계별 안내1
Step 1: Understand the term 'trace elements' in the context of microbiology. Trace elements are minerals required by organisms in very small amounts for various biochemical functions.
Step 2: Review the options given: (a) CHONPS refers to the major elements Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, and Sulfur, which are macronutrients, not trace elements.
Step 3: Recognize that vitamins (option b) are organic compounds, not elements, so they are not classified as trace elements.
Step 4: Note that nitrogen, phosphorus, and sulfur (option c) are also macronutrients needed in larger amounts, not trace elements.
Step 5: Identify that 'small mineral requirements' (option d) correctly describes trace elements, as they are minerals needed in minute quantities essential for enzyme function and other cellular processes.
비슷한 문제에 대한 검증된 영상 답변:이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Trace Elements in Microbiology
Trace elements are minerals required by microorganisms in very small amounts for essential enzymatic and metabolic functions. They differ from macronutrients like carbon or nitrogen, which are needed in larger quantities.
추천 영상:
07:27
Introduction to Microbiology
Macronutrients vs Micronutrients
Macronutrients such as CHONPS (carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur) are needed in large amounts, while micronutrients, including trace elements, are required in minute quantities but are vital for growth and metabolism.
추천 영상:
05:56Needham vs. Spallanzani
Role of Trace Elements in Enzyme Function
Trace elements often act as cofactors for enzymes, enabling catalytic activity and stability. Examples include iron, zinc, and copper, which assist in redox reactions and other cellular processes.
추천 영상:
02:32Functions of Enzymes
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