Chapter 2- Organization Of Life Start Through Plants Flashcards Preview

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Flashcards in Chapter 2- Organization Of Life Start Through Plants Deck (56)
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1

1.
What is Taxonomy and how does it work?

- Science of Classification
- organisms are classified into taxa based on common characteristics
ex.
prokaryotes: no membrane atoms around the nucleus
Eukaryotes: Has a membrane around the Nucleus

2

2.
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

Classification
1. kingdom
2. Phyium
3. class
4. Order
5. Family
6. Genus
7. species ( never capitalized)

3

4.
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

4

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)

5

5.
What are the three domains?

- Archaea
- Eukarya
- Bacteria

6

6.
Which domain(s) consist of:
a. prokaryotes?
b. eukaryotes?

Prokaryotes:
bacteria, Archaea

Eukaryotes:
Eukarya

7

7.
Be able to describe what is happening in a cladogram. (Look at pic)

Know

8

8.
What are the 6 kingdoms?

1. Eubacteria
- no membrane around
Nucleus
- more moderate environments
- Unicellular
2. Archaebacteria
- harsh environments
- no Nuclear membrane
- Unicellular
3. Protista
- live in Amoeba & paramecium
- most Unicellular
-very diff from one another
4. Fungi
- mushrooms, yeast
- most multicellular some Uni
- get energy from food outside of them and absorb nutrients
- have hyphae
5. Plantae
- Moses, ferns
- multicellular
6. Anmalia
- fishes, insects, mammals
-no cell wall
-they move
- eat there food
- Multicellular
- use photosynthesis
-have cell wall
- don’t move

9

10.
Compare prokaryotic and eukaryotic

Prokaryote:
- No membrane
- Unicellular
-don’t have a lot of organelles
- mass of DNA
Eukaryotes:
- membrane around Nucleus
-have lots of organelles
- strands of DNA

Both do cell division to reproduce and have a cell membrane and cytoplasm

10

11.
Compare heterotrophs and autotrophs

Heterotrophs:
obtain food from environment

Autographs:
Makes own food through intercellular chemical processes

11

12.
Describe the two main methods bacteria use to reproduce

Asexual:
Produces offspring that is genetically identical to the parent. No egg and sperm meet

Conjugation:
Similar to sexual reproduction
Exchange of genetic info between them

12

13.
What are the 3 shapes of eubacteria? Be able to recognize them from diagrams.

- Spirilla (spiral)
- Bacilli (vod)
- Cocci (spherical)

Ex. Chlamydias

13

14.
Go over the parts of a bacteria so you can label it

Bacteria diagram

14

15.
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

15

16.
Where can Archaebacteria be found?

In harsh environments (hot springs)
Ex. Halophiles

16

17.
Go get the cell organelles and their function

On page

17

18.
Be able to label the parts of a typical plant and animal cell

On page

18

19.
Be able to recognize a typical plant and animal cell

Plant cell is square
Animal cell is oval

19

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

20

21. What is a dichotomous key?

Dichotomous key:
Method to group organisms according to similar characteristics

21

22.
Be able to use and make a dichotomous key

Know

22

23.
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

23

24.
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

24

25.
Compare hyphae and mycelium

Hyphae:
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

25

26.
Fungi are further classified based on _________

Rhizopus

26

27.
Name each of the groups of fungi and describe a significant characteristics that puts them in each group

zygote fungi:
- hyphae from 2 diff organisms meet and make a zygote (bebe(

Club fungi:
- have basida which are a club shaped structure they contain spores. Ex mushrooms

Sac fungi:
- have a ascus which is a sac like structure that produces spores

Lichens:
- dual organisms that have a fungus and a bacteria or protist that are dependent o. One another for survival

27

28.
Why are fungi and bacteria important?

- decomposers
- used in medicine (bacteria)
- some are used in food

28

29.
What is a major defining point about the kingdom plantae?

They are photosynthetic

29

30.
Define photosynthesis

Photosynthesis;
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

30

31.
Describe the products and reactants of photosynthesis within the light reaction and the Calvin cycle

Calvin cycle
Reactants:
Co2, ATP, NADPH
Products:
NADP and ADP and glucose
Light reaction
Reactants:
Water and sunlight energy
Products:
NADPH, oxygen and ATP

Look at picture