36 Questions
What is the main source of energy for chemoautotrophs?
Inorganic chemicals
Which characteristic is unique to anoxygenic photosynthesis?
Use of bacteriochlorophyll a
What is the main difference between photoheterotrophs and photoautotrophs?
Source of carbon
How do chemoheterotrophs obtain energy?
From organic chemicals
Which metabolic pathway involves fixing CO2 in Calvin-Benson cycle?
Calvin-Benson cycle
What type of environment is most favorable for aerobic chemoheterotrophs?
Aerobic
What distinguishes photoheterotrophs from photoautotrophs?
Photoheterotrophs use organic compounds as sources of carbon, while photoautotrophs fix CO2 to sugar.
Which organisms use light energy to drive ATP production?
Photoautotrophs
How do chemoautotrophs obtain their energy?
From inorganic compounds
What is a characteristic of chemoheterotrophs?
Use organic compounds as sources of carbon
Which metabolic pathway involves the breakdown of complex molecules into simpler ones?
Catabolism
In terms of energy use, what is the primary function of anabolism?
Energy storage
What is the energy source for photoheterotrophs?
Light
Which group of organisms utilizes inorganic chemicals as their energy source and CO2 as their carbon source?
Chemoautotrophs
What is the main difference between chemoheterotrophs and chemoautotrophs?
Energy source
Which group of organisms can use light as their energy source but still require organic compounds as a carbon source?
Photoheterotrophs
What is the relationship between anabolism and catabolism?
Anabolism builds molecules, catabolism breaks them down
Which of the following types of organisms uses inorganic chemicals as both their energy and carbon source?
Chemoautotrophs
Which type of reaction involves breaking down complex molecules to provide energy and building blocks for anabolism?
Catabolic
What is the role of ATP in cellular metabolism?
It serves as an intermediate between catabolism and anabolism.
In which type of reaction, energy is consumed to build complex molecules using building blocks?
Anabolic
Which metabolic process breaks down nutrients to release energy and sustain life?
Glycolysis
What is the primary difference between catabolic and anabolic reactions?
The consumption or release of energy
Which term best describes a reaction that releases energy as it breaks down complex molecules?
Exothermic
What is the defining characteristic of amphibolic pathways?
They function in both anabolism and catabolism
In the context of metabolic pathways, what are common intermediates?
Molecules that bridge anabolism and catabolism
What is the primary function of anabolism in terms of energy utilization?
To consume ATP for building complex molecules
What role do enzymes play in metabolic pathways?
Enzymes speed up reactions by lowering activation energy
Which term best describes metabolic pathways that involve both building and breaking down molecules?
Amphibolic pathways
What is the key function of catabolic pathways in metabolism?
To break down complex molecules to release energy
Which group of organisms can use inorganic chemicals as their energy source and CO2 as their carbon source?
Chemoautotrophs
What is the primary function of catabolism in metabolism?
Release energy through the breakdown of complex molecules
In which metabolic pathway is CO2 fixed during the Calvin-Benson cycle?
Calvin cycle
What is the primary role of anabolism in metabolism?
Build complex molecules from simple ones
Which group of organisms uses light energy for ATP production?
Green bacteria
How do chemoheterotrophs derive their energy?
From breaking down complex organic molecules
Explore the differences in photosynthesis processes between selected eukaryotes (algae, plants) and prokaryotes (cyanobacteria, green bacteria, purple bacteria). Learn about the substances involved in reducing CO2, oxygen production, and types of chlorophyll used.
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