Lab Exam 1 Flashcards
diatoms
Translucent, unicellular, autotrophs. Usually circular or oval shaped. Extremely abundant, about a quarts of photosynthesis makes chlorophyll. Major food resource.
filamentous algae
Organisms that have cells connected in filaments to make chains. As a result they tend to be long, chain-line organisms. Includes Spirogyra and Oscillatoria
Oscillatoria
A green cyanobacteria. (blue-green) Part of filamentous algae group. Found in water troughs, capable of photosynthesis.
Rotifers
Microscopic heterotrophs whom contain no chlorophyll and a have a tuft of cilia around the mouth. “wheel bearer head” Consume phytoplankton and algae.
Spirogyra
Organisms are usually spiral or helical shaped. Green and contains chlorophyll. Found in freshwater.
Paramecium
Unicellular heterotrophs whose body is coved in cilia to help them move. Consume bacteria and algae, eat by 2deg. consumers
4 requirements for terrestrial plants
- increased rigidity 2. Specialized vessels for transporting food and water 3. Decreased water loss due to cuticle 4. Decreased reliance on water due to reproduction
megagametophyte
(1N) the female gametophyte produces by the megaspore of a plant
megaspore
(1N) the larger spore that is produced by the sporangia and develops into the female gametophyte, or megagametophyte
megasporangia
(2N) the plant structure that produces megaspores.
microspore
the smaller spore that is produced by the microsporangia and germinates into the male gametophyte, or microgametophyte
ovulate cones
a kind of cone of gymnosperms that contains woody scales wit the megasporangium at the base of each scale.
endosperm
the nutritive tissue inside a seed.
staminate cone
a kind of cone of gymnosperms that contains small scales containing the microsporangium
