Energy and nutrient aquesition 1 Flashcards
What is the term for the process of food production by bacteria using chemicals as the energy source?
Chemoautotrophy
Chemoautotrophy typically occurs without the sun.
What is photoheterotrophy?
A process where organisms use light for energy but not CO2 as their sole carbon source.
Examples include Heliobacteria.
Give an example of a photoheterotrophic organism.
Heliobacteria.
What is the process that converts light energy into chemical energy?
Photoautotrophy
Photoautotrophy is essential for powering the synthesis of carbohydrates.
Which organisms are included in photoautotrophy?
Plants, algae, and cyanobacteria
These organisms utilize light energy for photosynthesis.
What type of molecules does photoautotrophy help synthesize?
Energetically unfavorable molecules (carbohydrates)
These molecules are synthesized using the energy derived from light.
What is photoautotrophy?
The process by which organisms convert light energy into chemical energy.
How efficiently is absorbed light energy converted to chemical energy?
With high efficiency.
What are the conversion products of photoautotrophy?
Very stable products, such as fossil fuels.
Fill in the blank: Photoautotrophy retains _______ of incident solar energy.
5%.
True or False: The conversion products of absorbed light energy are unstable.
False.
Fungi are absorbers and what are the 2 enzymes that break down the nutrients.
a. Hyphae and My celium
a root-like structure that grows into or around another structure to
absorb water or nutrients is called?
Haustoria
What are ectomycorrhizal fungi?
A: Ectomycorrhizal fungi form sheaths of hyphae over the root and grow into the extracellular spaces of the root cortex.
What are arbuscular mycorrhizal fungi?
A: Arbuscular mycorrhizal fungi have branching hyphae that penetrate the plant cell wall to contact the plasma membrane.
As a cell increases in size, its volume grows faster
than its:
Surface area
If an organism used CO2 as a carbon source and
chemicals as an energy source, it would be classified as:
Chemoautotroph
These fungi form sheaths of hyphae over the root
and grow into the extracellular spaces.
Ectomycorrhizal fungi
