- Explain the color differences between the autotrophic and the heterotrophic organisms.
Autotrophs are green because they have chlorophyll-A which is used by plants to produce food through photosynthesis. Heterotrophs are everything else. Heterotrophs come in all colors and patterns, from green frogs to multicolored peacocks.
2. Are bacteria large or small organisms compared to eukaryotic cells? Explain your answer.
Bacteria is a prokaryote and its smaller than a eukaryotic cell. Eukaryotic cell is more developed than prokaryotic cell from an evolutionary standpoint. It has more DNA and genes, larger and more complex. It contains more cell organelles which makes it larger .
3. Can you observe any details within the cytoplasm of any of the microorganisms you viewed under the microscope? Elaborate.
Answer: No, I could not observe any details within the cytoplasm of any of the microorganisms you viewed under the microscope. Which of the following structures would you expect to find in bacteria cells – nucleus, cytoplasm, cell membrane, and/or cell wall? Answer ) Cytoplasm, cell membrane, and/or cell wall. Bacteria lacks nucleus.
- Which of the following structure would you expect to find in eukaryotic cells – nucleus, cytoplasm, cell membrane, and/or cell wall? Answer )
All of them – Nucleus, cytoplasm, cell membrane, and/or cell wall 6. Are most organisms in the bean water autotrophs or heterotrophs? Answer )
Most microorganisms in bean water are heterotrophs that eat the nutrients inside the bean pods, which are seeds ( aka autotrophs ). This makes most of the micro-organisms heterotrophs.
- Are most organisms in the pond water autotrophs or heterotrophs? Answer ) In pond water, both are present. If there are heterotrophs, there has to be something to consume ( autotrophs ). These organisms can be further classified based on their feeding habit as producers, consumers and decomposers,. The green and yellow algae (diatoms) are microscopic producers that convert solar energy into complex molecules that can be passed on to consumers. Similarly bacteria acts as decomposer and are useful as they break down dead organic material, allowing raw materials once locked up in animal and plant bodies to recycle through the pond community. The bacteria themselves, become food for protozoans such as Paramecium and Vorticella , and these organisms feed the insects, crustaceans, and baby fish , building up food chains and creating a pond community.
- Are most autotrophs motile or sessile?
Answer ) Sessile
- Are most heterotrophs motile or sessile? Answer ) Motile Sessile organisms stay in one place, whereas motile organisms are mobile. All land plants stay in one place whereas some animals have motile larval stages and sessile adult stages, or vice versa. Most autotrophs photosynthesize and are sessile plants. Most heterotrophs are animals, and are motile ( or have at least a motile phase in their life cycle ).
- Explain the overall differences between the two micro-community environments.
Answer ) Pond micro – environments consists of autotrophs or heterotrophs and decomposers. Each one is interdependent on the other while most organisms in the bean water micro-community are consumers. Pond micro – environments comes under the Freshwater Ecosystem while the Bean Water micro-community is self designed artificial ecosystem which is controlled by human interference. Pond micro – environment works the same way in a macro ecosystem, but on a microscale. The organisms inhabiting the pond water micro community include algae, fungi, bacteria, protozoa and other microscopic and macroscopic organisms. Hence, the genetic diversity is much greater in Pond micro – environment rather than in bean water micro- community.