Biology 20 - Unit 1 - Chapter 1 Exam with
correct Answers
Cellular Respiration - Answers -CHO + Oxygen --> Carbon Dioxide + Water + Energy ...
Extended (detailed):process in which, mitochondria in the cells of plants, animals, and
other multicellular organisms break carbohydrates and other energy-rich products
derived from fats to generate molecules of ATP (energy).
Photosynthesis - Answers -Energy + Carbon Dioxide + Water --> CHO + Oxygen ....
Extended Definition (detailed): process by which plants, algae and some bacteria use
the Sun's light energy to chemically convert carbon (inorganic) into carbohydrates
(organic) such as sugars and starches.
Producer - Answers -organism that synthesizes its own food from inorganic molecules
by using light or chemical energy (also called autotroph)
Consumer - Answers -organisms that can't synthesize its own food through
photosynthesis or chemosynthesis, and must derive its nutrients from organic molecules
formed by producers (also called heterotroph)
Albedo - Answers -percentage of incoming solar radiation reflected on a surface
Chemosynthesis - Answers -process by which certain fungi and bacteria use the energy
from chemical nutrients to chemically convert carbon (inorganic) to carbohydrates
(organic) such as sugars and starches in the absence of sunlight
Primary Consumer (herbivore) - Answers -organism that obtains energy by eating plants
Secondary Consumer (carnivore) - Answers -organisms that eats primary consumers
Tertiary Consumer (carnivore) - Answers -organisms that eats secondary consumers
Decomposers - Answers -organisms (bacteria, fungus, earthworm, insect) that obtains
energy by consuming dead plant and animal matter or waste
Trophic Level - Answers -within an ecosystem, a feeding level through which energy
and matter are transferred; indicates an organism's position in the food chain and is
determined by the number of energy transfer steps required to reach each level
Food Chain - Answers -model showing the linear pathways through which food (energy)
is transferred from producers to primary consumers and to higher trophic levels
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