Nutrition in Archaea and other stuff

What is the primary component of bacterial cell walls?

• Polysaccharides

• Peptidoglycan

• Cellulose

• Chitin

Which of the following environments are archaea known to inhabit?

• Temperate forests

• Extreme environments like hot springs

• Urban areas

• Freshwater lakes

What is the term for archaea that can tolerate high salt levels?

• Thermophiles

• Acidophiles

• Halophiles

• Methanogens

Which type of nutrition involves the oxidation of inorganic chemicals for energy?

• Photoautotrophy

• Chemoautotrophy

• Heterotrophy

• Saprotrophy

What is the process called where some archaea produce methane gas?

• Photosynthesis

• Fermentation

• Methanogenesis

• Respiration

Which of the following is an example of a saprotroph?

• Halobacterium

• Escherichia coli

• Cyanobacteria

• Cordyceps

What is the role of saprotrophs in an ecosystem?

• Producing oxygen

• Recycling carbon and nitrogen

• Fixing nitrogen

• Pollinating plants

Which of the following is NOT a characteristic of archaea?

• Presence of a true nucleus

• Ability to survive in extreme environments

• Lack of peptidoglycan in cell walls

• Unicellular structure

What is the role of a species within its habitat known as?

• Niche

• Habitat

• Role

• Environment

Which type of organisms can only carry out anaerobic respiration?

• Obligate Aerobes

• Aerobic Organisms

• Facultative Anaerobes

• Obligate Anaerobes

Tags

NGSS.HS-LS2-3