Search found 37 matches

by Sinead Ryan
Sat May 21, 2005 11:41 am
Forum: General Discussion
Topic: Scientific Attitude
Replies: 18
Views: 47853

Scientific Attitude

My biology lecturer just gave a lecture regarding the basic principles of biology. He said that a scientific attitude was very important and gave a list of characteristics which he said were very important. He focused on one in particular that many of us would have put much farther down the list of ...
by Sinead Ryan
Fri May 20, 2005 9:39 pm
Forum: Microbiology
Topic: Fungi and fermentation
Replies: 13
Views: 17894

Thank you that is much clearer now..... much appreciated!!
by Sinead Ryan
Fri May 20, 2005 9:34 pm
Forum: Botany Discussion
Topic: Adaptation to terestrial life of different plants
Replies: 1
Views: 3367

chain of survival (bad phrasing i know!!) is algae, mosses, ferns, gymnosperms, angiosperms????
Ferns more sucessful because they are vascular
Gymnosperms because they have thick bark and external seeds (as opposed to spores)
What about mosses and angiosperms???
by Sinead Ryan
Fri May 20, 2005 9:26 pm
Forum: Botany Discussion
Topic: Algae
Replies: 2
Views: 3469

Algae

Could any body tell me tell features which make algae less sucessful than other vascular plants on land...
by Sinead Ryan
Fri May 20, 2005 9:16 pm
Forum: Microbiology
Topic: Fungi and fermentation
Replies: 13
Views: 17894

So the glucose (along with fructose) is found in the jucies of the fruit, then is turned into two molecules of pyruvic acid, and then eith beer or wine yeasts act on the pyruvic acid turning it to ethenol and giving off CO2....
That about right???
by Sinead Ryan
Fri May 20, 2005 8:41 pm
Forum: Microbiology
Topic: Fungi and fermentation
Replies: 13
Views: 17894

so the glucose is present in the cells of the fruit??? Sorry i'm very easily confused!!!
by Sinead Ryan
Thu May 19, 2005 9:38 am
Forum: Microbiology
Topic: Fungi and fermentation
Replies: 13
Views: 17894

"Glucose is first degraded without the use of oxygen in the citoplasm into 2 molecules of pyruvic acid."

this may sound a very a stupid question but where does the glucose that is turned into pyruvic acid come from???
by Sinead Ryan
Tue May 17, 2005 1:44 pm
Forum: Microbiology
Topic: Fungi and fermentation
Replies: 13
Views: 17894

ok thanks, that makes it a bit clearer but still have a few questions.... Piruvic acid?? is that the acid that would be present in the fruits??? and is there a common (and easier to spell) name for Saccharomyces cerivisiae and saccharomyces elipsoideus??
by Sinead Ryan
Mon May 16, 2005 10:30 am
Forum: Microbiology
Topic: Fungi and fermentation
Replies: 13
Views: 17894

Fungi and fermentation

how exactly do fungi activate fermentation and is there any particular type or is it just any fungi???
please help
Sinead
by Sinead Ryan
Tue Mar 08, 2005 3:53 pm
Forum: Cell Biology
Topic: cell being part of a multicellular organisms
Replies: 8
Views: 25726

Cells that form a multicellular organism become specialised and are able to focus on one function because other cells are responcible for the other functions. This also increases the efficiency....
by Sinead Ryan
Tue Mar 08, 2005 3:50 pm
Forum: Cell Biology
Topic: celluler features
Replies: 2
Views: 7894

the most important on i can think of are the plasts most notably chloroplast. Chloroplast are in plant cell and contain a green pigment called chlorophyll which can harness sunlight to make food for the plant in a process know as photosynthsis. Another would be leucoplasts which contains pigments wh...
by Sinead Ryan
Tue Mar 08, 2005 3:44 pm
Forum: Cell Biology
Topic: eukaryotic cells
Replies: 28
Views: 27729

From what i know common features to eukaryotic cells are: 1: Plasma membrane 2: Cytoskeleton 3: Nuclear envelope (that is the double membraned nucleus) 4: Membrane bound organelles 5: Endoplasmic Reticulum 6: Ribosomes 7: Mitocondrion You may know that cillia, flagella, and centrioles are present in...