Search found 5720 matches
- Sat Mar 05, 2005 10:48 pm
- Forum: Cell Biology
- Topic: development of pigments and chloroplasts
- Replies: 2
- Views: 5385
I think you should know that not every organsim has pigments in chloroplasts. At algae they are located in chromatophores and at cyanobacteria in inclusions of the cellular membrane
- Sat Mar 05, 2005 10:42 pm
- Forum: Human Biology
- Topic: Respiratory and Excretory systems
- Replies: 3
- Views: 16386
That is not entirely true anna_10feb: each kidney consists of 1 milion nephrons. Each nephron has a part called the glomerule which is protected by the Bowman capsule. I guess the answer to that is connective tissue. The kidney, like most other organs in our body is protected by a soft connective ti...
Yeap, u r right. Sorry, i didn't c that because i was very tired. From what i know the process is simple. The vacuole reaches the membrane through the cytoplasmatic curents and then joines it's membrane with the celular membrane, thus eliminating it's content on the outside. the liquit still has to ...
first of all, both plant and animal cells contain non-contractile vacuoles. They are the way cells store certain stuff(like glucose in the orange fruit). The contractile vacuola is just a certain type of vacuola. Now, how does the plant get rid of exces water. There are 2 ways:the most important is ...
- Thu Mar 03, 2005 11:09 pm
- Forum: General Discussion
- Topic: Exception to Characteristics of Life.
- Replies: 57
- Views: 75754
The viruses have been up for debate for a long time: nobody was able to determin if they are alive or not, so in the present they are called infectious entities. It is also true that viruses can contain DNA or RNA but they do not have their own methabolism nor are they capable of reproduction. But t...
- Thu Mar 03, 2005 10:45 pm
- Forum: Zoology Discussion
- Topic: What is the smartest animal not human
- Replies: 49
- Views: 59725
I sometimes wonder: Are we the smartest animals? I mean, think of it: any animal on earth(including bacteria ) developesa in harmony with it's ecosistem except humans: On the discovery channel someone asked the other day "Will Earth survive the human rase?" I don't think so actually... But if we jud...
I'm sorry if I am wrong about anything... Bio is more than a hobby than a job to me. Also would like to apologise if i missspell words: I'm from Romania Now, from what I know the golji aparatus doesn't transport only proteins: the majority of things inside the cell that are not native to it are stor...