Flashcards in Chapter 2- Organization Of Life Start Through Plants Deck (56)
What is Taxonomy and how does it work?
- Science of Classification
- organisms are classified into taxa based on common characteristics
prokaryotes: no membrane atoms around the nucleus
Eukaryotes: Has a membrane around the Nucleus
List the various levels of Linnaeus’ classification system in order from most specific to least specific
- A method used to organize organism according to similar characteristics
7. species ( never capitalized)
of an organisms scientific name. Which of the options below have the most traits in common? How do you know?
a. Lynx Rufus
b. Panthera onca
c. Loxodonta africana
d. Panthera uncia
b and d because there genus both end with thera
3. Binomial nomenclature includes what two parts of an organisms scientific name.
- used to name species. Has a combination of the genes (capitalized) and specific epithet (lower case)
What are the three domains?
Which domain(s) consist of:
Be able to describe what is happening in a cladogram. (Look at pic)
What are the 6 kingdoms?
- no membrane around
- more moderate environments
- harsh environments
- no Nuclear membrane
- live in Amoeba & paramecium
- most Unicellular
-very diff from one another
- mushrooms, yeast
- most multicellular some Uni
- get energy from food outside of them and absorb nutrients
- have hyphae
- Moses, ferns
- fishes, insects, mammals
-no cell wall
- eat there food
- use photosynthesis
-have cell wall
- don’t move
Compare prokaryotic and eukaryotic
- No membrane
-don’t have a lot of organelles
- mass of DNA
- membrane around Nucleus
-have lots of organelles
- strands of DNA
Both do cell division to reproduce and have a cell membrane and cytoplasm
Compare heterotrophs and autotrophs
obtain food from environment
Makes own food through intercellular chemical processes
Describe the two main methods bacteria use to reproduce
Produces offspring that is genetically identical to the parent. No egg and sperm meet
Similar to sexual reproduction
Exchange of genetic info between them
What are the 3 shapes of eubacteria? Be able to recognize them from diagrams.
- Spirilla (spiral)
- Bacilli (vod)
- Cocci (spherical)
Go over the parts of a bacteria so you can label it
What are 3 of the major differences between Eubacteria and Archaebacteria?
- composition of the cell walls
- lipids in the plasma membranes
- structure and function of the genes
Where can Archaebacteria be found?
In harsh environments (hot springs)
Go get the cell organelles and their function
Be able to label the parts of a typical plant and animal cell
Be able to recognize a typical plant and animal cell
Plant cell is square
Animal cell is oval
20. The kingdom Protista is composed of organisms that are very similar. Agree or disagree
Disagree. Some organisms were multicellular Ex. Kelp
some were Unicellular such as Ameaba
21. What is a dichotomous key?
Method to group organisms according to similar characteristics
Be able to use and make a dichotomous key
What were some things you noticed about Protists when you made the dichotomous key?
- they are all very different, some were Unicellular while other multi
- some live in harsh environments
- some make there own energy
The kingdom Fungi is defined as a separate group based on the fact that the organisms in it are multicellular. Agee or disagree
Disagree. Not all fungi are multicellular but are a separate group because they all obtain food by digesting it outside there bodies and absorbing the nutrients
Yeast is Unicellular
Compare hyphae and mycelium
Part of the fungus that feeds, grows, and may produce a mushroom or other kind of reproductive structure
Mycelium: vegetative part of a fungus, consists of a mass of branching, thread like hyphae. Forms the body of the fungi
Fungi are further classified based on _________
Name each of the groups of fungi and describe a significant characteristics that puts them in each group
- hyphae from 2 diff organisms meet and make a zygote (bebe(
- have basida which are a club shaped structure they contain spores. Ex mushrooms
- have a ascus which is a sac like structure that produces spores
- dual organisms that have a fungus and a bacteria or protist that are dependent o. One another for survival
Why are fungi and bacteria important?
- used in medicine (bacteria)
- some are used in food
What is a major defining point about the kingdom plantae?
They are photosynthetic
Process of converting light to energy to chemical energy and storing it in the bonds of sugar. Occurs in plants and some algae (Protista) uses chlorophyll