PSS Exam 1 Questions & Answers 2024/2025
Climate - ANSWERSkey influence on vegetation type that develops
What is a plant? - ANSWERSany of various photosynthetic, eukaryotic, multicellular organisms of the kingdom plantae characteristically producing embryos, containing chloroplasts, having ...
Climate - ANSWERSkey influence on vegetation type that develops
What is a plant? - ANSWERSany of various photosynthetic, eukaryotic, multicellular organisms of the
kingdom plantae characteristically producing embryos, containing chloroplasts, having cellulose cell
walls, and lacking the power of locomotion
Autotrophic organisms - ANSWERSuse light energy to fuel their own needs (photosynthesis)
Photosynthesis - ANSWERSmost important process on Earth; all life depends on it
Chlorophyll - ANSWERSplant pigment that captures light energy and converts it to chemical energy.
"Green Blood"
Plants are important because - ANSWERSfeed us, improve aesthetics, replenish our air, cure our ills, and
provide raw materials for industry
Food chains - ANSWERSpattern of flow of energy rich consumables through a biological system
What is the first vital link in food chains? - ANSWERSPhotosynthesizing plants
Amino acids needed by infants - ANSWERSArginine and Histidine
Heterotrophic organisms - ANSWERSmust ingest energy rich organic compounds to sustain life;
ultimately depend on plants
What are crop plants? - ANSWERSany plant used by man for any purpose
More than half the calories in many human diets come from 3 cereal grains. These cereal grains are? -
ANSWERSwheat, rice, and maize
In many places, where crops originated a diet emerged consisting of a cereal grain and a _____? -
ANSWERSlegume
The amount of energy striking a plant that is actually captured by photosynthesis is roughly 1-2%, and
roughly 1% of that is transferred when a herbivore consumes a plant. How much energy is transferred
when a carnivore or omnivore consumes a herbivore? - ANSWERS1%
Agriculture is a relatively recent development (10,000 to 12,000 b.p.). Where did agriculture first
develop? - ANSWERSseveral places at the same time
Plants are _______ organisms - ANSWERSautotrophic
GMOs (Genetically Modified Organisms) reduce.... - ANSWERSneed for pesticides and field tillage
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