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Flashcards in Intro - Chapter 1 Deck (22):
1

Living organisms must: (8)
RRGDOROA

Respond to stimuli
Reproduce
Grow
Development
Obtain Energy
Regulate
Order
Adapt

2

Levels of oranization? Bec Pooot Coma

Biosphere
Ecosystem
Community
Population
Organism
Organ system
Organ
Tissue
Cell
Organelle
Molecule
Atom

3

What laws apply to biology?

None specifically, must adhere to laws of physics & gravity.

4

Biological theories are ________.

Conditional - no biological truth. Cannot prove, but can disprove.

5

This man discovered & coined 'cells'. He did so by magnifying ______ 30x.

Robert Hooke, Cork

6

This man described single cell 'animalcules' in pond water. Sampled his own _______ & found ________.

Antony Van Leeuwenhoek
Diarrhea, Giardia!

7

Life from non-living matter?

Theory of Spontaneous Generation

8

This man covered meat and prevented spontaneous generation.

Francesco Reddi

9

This man boiled nutrient broth & bacteria formed.

John Needham

10

This man closed the flask & sealed, and no growth was noted.

Lazzano Spallanzine - however, he changed the conditions inside flask.

11

This man used swan neck flasks to prove no spontaneous generation.

Louis Pasteur

12

Cell Theory in 3 Points:

All living things are made of cells & products.
New cells are created by old cells /2.
Cells are basic building units of life.

13

In 1735 this man came up with the hierarchy of taxonomy we use today.

Linneaus!

14

Originally there were 2 kingdoms:

Plantae - Sessile, phototrophic
Animalia - Motile, heterotrophic

15

Now we use 3 more kingdoms:

Fungi - Sessile, decomposers
Protista - mixed bag. Microscopic euk.
Monera - microscopic prokaryotes

16

Taxonomic groupings from largest to small:

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

17

When using binomial nomenclature:

Genus (italics) species

18

Why do we use ribosomes to compare universal structure & function?

Because everything has ribosomes & they all have the same function in all organisms.

19

The two subunits of ribosome we use?

16S, rRNA

20

3 Domains of Life higher than kingdoms?

Bacteria - Prok with peptidoglycan
Archaea - Prok no peptidoglycan. Xtreme environments.
Eukarya - Euk (Protista, Plants, Fungi, Animal) Multiple kingdoms without agreement.

21

Thanks to the molecular revolution we now use this as the next step in understanding. Groupings based on molecular data.

Phylogeny

22

Five clusters of phylogeny? (UAERC)

Unikonta
Archaeplastida
Excavata
Rhizaria
Chromalveolata