Observation of Living Things (Station 10)

10B

10A

STATION 10:

10A: Tiger Lily (Hemerocallis fulva)

10B: Roselle (Hibiscus sabdariffa) 

Examine the physical features of the specimen. Make a quick sketch in the space below:

Are these 2 organisms related?
Both are plants and are found in water bodies.

Which organisms do you know share similar features as your specimen? Use this information to answer the following questions:

1. Which domain do these specimens belong to? Bacteria/Archaea/Eukaryota?
Eukaryota

2. Key it down to genus and species if you can. If not, key it to whichever level that shows you the common names of the specimens. Use the online resource (http://www.tolweb.org/Life_on_Earth/1) to help you. e.g. Eukaryota - Plantae - Embryophytes (land plants) - Bryophyta (mosses)
10A: Euaryota - Viridiplantae - Streptophyta - Embryophyta - Spermatophyta - Lilopsoda - Asparagales - Xanthorrhoeaceae - Hemerocallis -  Hemerocallis fulva
10B: Eukaryota - Viridiplantae - Streptophyta - Streptophytina - Embryophyta - Tracheophyta - Euphyllophyta - Spermatophyta - Magnoliophyta - Liliopsida - Asparagales - Xanthorrhoeaceae -

3. Where would you find these specimens in nature?
10A: Water Bodies
10B: Water Bodies (Clean running water/ Well drained fertile soil )

4. What role do they play in the ecosystem? E.g. Producer, consumer etc.
10A: Producer
10B: Producer

5. Any other interesting notes about your specimens?
10B: When cut, produces a red liquid that stains.
10A: Produces a clear liquid when cut.

eol.org/pages/1000843/overview
fatboo.com/2012/06/traditional-chinese-herbs-basics.html
mygreenspace.nparks.gov.sg/discover-the-many-uses-of-the-roselle-plant/

https://docs.google.com/document/d/1DZuRMS-Oz24q07vYSIj233BHOAis095xGLp8YUp7_n0/edit#heading=h.gjdgxs

Classification

--> Linnaeus system

--> Taxonomy

Kingdom: Animalia/Plantae/Protista/Monera (Bacteria & Archaea)/Fungi

Domain: Bacteria/Archaea/Eukarya

Eukarya: Animalia/Plantae/Protista/Fungi

6 Kingdoms

- Based on morphological characteristics

- e.g. Major cellular structure/Methods of obtaining nutrients/Metabolism

3 Domain

- Derived from the Molecular Biology

- Based on comparing sequences of ribosomal RNA to determine common ancestry

The Story of Life

The Story of Life

Prokaryotes (also known as prokaryotic cells)

e.g. Bacteria

Eukaryotes (also known as eukaryotic cells)

e.g plant cells, animal cells, yeast

Nutrients

Nutrition

·      Carbohydrates – monosachloride

·      Proteins – amino acids

·      Fats – fatty acids + glycerol

·      Vitamins

·      Minerals

·      Water

·      Dietary Fiber

Breaking Down

·      Feeding – Chewing (mastication)

·      Digestion – Physical/Chemical

·      Absorption

·      Assimilation

·      Excretion

Respiration

·      Aerobic (oxygen present)

·      Anaerobic (oxygen absent)

Glucose ---(aerobic respiration)--à Energy + Carbon Dioxide

Glucose ---(anaerobic respiration)--à Energy + Carbon Dioxide + Lactic Acid

Is It Alive?

What Characteristics are we using?

Respond to surrounding.

Need Air, Food, and Water.

Properties	Sample A	Sample B	Sample C	Sample D	Sample E
Size	Medium	Small	Big	Medium	Very Small
Texture	Grainy	Grainy	Rubbery, Hard	Hard, Rough	Soft, Powdery
Color	Beige	Yellowish White	Transparent	Black and Red	Brown

Sample	Claim	Evidence	Observation
A	Non-Living Thing	It did not react to both water and glucose.	It remained solid at the bottom of the test tube and remained the same on the cotton wool.
B	Living Thing	It reacted to the water and started dissolving into smaller pieces after only 3 seconds. It reacted to glucose after around 3 seconds and started dissolving.	Sample B started to dissolve into the water and become powder in the test tube and turned the water murky. Sample B dissolved and spread out and became yellow powder on the wet cotton wool.
C	Living Thing	It reacted to the water and started growing bigger after a few seconds and it reacted to the glucose after 2 or more seconds.	Sample C started to grow bigger and bigger as the time passed.
D	Non-Living Thing	It did not react to the glucose or the water.	It remained solid at the bottom of the test tube and remained the same on the cotton wool.
E	Non-Living Thing	It did not react to the glucose or the water.	It remained solid at the bottom of the test tube and remained the same on the cotton wool.

After a few days, the substances changed. This time, we can more accurately determine whether the substance is alive or not.

Sample	Claim	Evidence	Observation
D	Living Thing	The sample was actually seeds.	The seeds germinated and seedlings appeared.
E	Living Thing	The sample was actually eggs.	White creatures appeared from the eggs and they were moving.