Skip to main content
Ch. 12 - The Eukaryotes: Fungi, Algae, Protozoa, and Helminths
Tortora - Microbiology: An Introduction 14th Edition
Tortora14th EditionMicrobiology: An IntroductionISBN: 9780138200398당신이 사용하는 게 아니라요?교과서 변경
8장, 문제 8

Use the following choices to answer questions 8–10:
a. Apicomplexa
b. ciliates
c. dinoflagellates
d. Microsporidia
These are obligate intracellular parasites that lack mitochondria.

검증된 단계별 안내
1
Step 1: Understand the key terms in the question. The problem asks for a group of organisms that are obligate intracellular parasites and lack mitochondria.
Step 2: Recall the characteristics of each group: Apicomplexa are intracellular parasites but typically have mitochondria; ciliates are mostly free-living and have mitochondria; dinoflagellates are mostly free-living photosynthetic organisms with mitochondria; Microsporidia are known as obligate intracellular parasites and notably lack mitochondria.
Step 3: Focus on the unique feature of lacking mitochondria, which is rare among eukaryotes and is a hallmark of Microsporidia.
Step 4: Match the description 'obligate intracellular parasites that lack mitochondria' to the correct group from the choices given.
Step 5: Conclude that the correct answer corresponds to the group with these defining features, which is Microsporidia.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
3m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Obligate Intracellular Parasites

Obligate intracellular parasites are organisms that can only survive and reproduce within the cells of a host. They rely entirely on the host's cellular machinery for energy and nutrients, making them dependent on living cells for their life cycle.
추천 영상:
03:22
Viruses

Mitochondria and Energy Metabolism

Mitochondria are organelles responsible for producing energy through aerobic respiration in most eukaryotic cells. Some parasites lack mitochondria, which affects their metabolism and means they must obtain energy through alternative pathways or directly from the host.
추천 영상:
04:19
Mitochondria

Microsporidia

Microsporidia are a group of obligate intracellular parasites characterized by the absence of typical mitochondria. They infect a wide range of hosts and rely on host cells for energy, making them unique among eukaryotes and relevant to the question's description.