Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Biology PP 35 & 36
Fungi and Plants
| Question | Answer |
|---|---|
| What happened in the Ordovician Period? | primitive plants appear on land. Global cooling and glaciation, and volcanism. Ends in extinction due to glaciation |
| Fungi | eukaryotic heterotrophs |
| How do fungi eat? | digest their food externally, secrete enzymes then absorb organic molecules |
| Mycorrhizal fungi | fungi help plants absorb water and nutrients, mutually beneficial associations |
| is mutualism common in ecosystems? | yes, mutualism is a common theme in ecosystem |
| name some diseases parasitic fungi cuase | athlete's foot, ringworm, corn smut, chestnut blight |
| benefits of fungi | decomposers of dead organisms; as food; produce antibiotics |
| what do fungi decompose? | they break down cellulose and nutrients |
| what was the first antibiotic to be discovered? | penicillin |
| photoautotrophs | self-feeder that get their energy from sunlight |
| benefits of plants | reduce CO2, provide food, offer shelter and breeding areas for animals, fungi, and microorganisms. Prevent soil erosion |
| evolutionary features of plants | plants have vascular tissue |
| vascular tissue | transport water and nutrientsthroughout the plant body; provides internal support |
| cuticle | reduces water loss; |
| stem | support plants |
| roots | anchor plant, absorb water and mineral from soil. |
| What are 90% of all plants alive today? | angiosperms |
| angiosperms | have flowes and fruits which increase fertilization, disperal of seeds |
| purpose of seeds | protect the embryo |
| bryophytes (550 million years ago) | plants that lack vascular tissue, have flagellate sperm which swim in film of water |
| vascular plants (400 million years ago) | having swimming sperms, have xylem and pholem |
| seed plants (360 million years ago) | have seeds (female) and pollen (male) |
| gymnosperms | produce cones, such as pines, are called naked seed plants because their seeds not not develop inside a protective chamber. Supply most of our lumber and paper |
| the 3 terrestrial adaptations of conifers and gymnosperms | 1) further reduction of gametophyte. 2) pollen 3) seed |
| angiosperms (130 million years ago) | have seeds which develop in ovaries within fruits; main food source for the world; |
| what does angiosperm produce? | flowers and most of our food, fruits, veggies, grains |
| why are angiosperms successful? | because they interact with animals |
| How does angiosperm and animals help each other | angiosperms are a major food source for animals. Animals aid plants in pollination and seed dispersal |
| True or false: plant diversity is a nonrenewable resource? | TRUE |
| what happened to the tropical forest in the last third of the 20th century? | 20% of the tropical forest worldwide were destroyed |
| What happened to the forests of North America in the last 200 years? | they have shrunk by 40% |
| What percentage of prescription drugs are extracted from plants? | over 25% |
| how many plants have been investigated for unique compound? | less than 2% |
| how are plant reproduced in modern argiculture? | by vegetative reproduction |
| vegative reproduction | productivity is increase because it is cheap and easy to make large #s of identical plants from cutting or bits of tissue. Can reduce genetic diversity |
| good soil management includes: | water-conserving irrigation; erosion control; use of herbicides and fertilizers; rotating crops |
| nitrogen fixation | bacteria in the soil convert nitrogen into forms that plant can use |
| how do plant control growth and development? | by using hormones as chemical signals to control growth and development |
| benefits of soy | a healthy substitute for meat; reduce risk of heart disease; contain phytoestrogen which is similar to estrogen, work as hormone replacement therapy. |
Created by:
Tiffastic
Popular Biology sets