Answer:
The enzyme 's active site binds to the substrate. ... When an enzyme binds its substrate it forms an enzyme-substrate complex. Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur
Explanation:
Answer: population, community, ecosystem and biosphere
Explanation:
In ecological organization, the smallest level is Organism level (a unit representative).
Population level comes next after the Organism level. Population refers to the total number of organisms of the same species inhabiting a geographical area.
Then, Community level comes next after population level. A refers to group of plants, animals and other living components functioning in their non-living environment.
Ecosystem level is the next after community level. An ecosystem refers to the aggregate of living organisms interacting with the non-living components in an environment.
Lastly, Biosphere is the highest level in ecological organization. Biosphere refers to the part of the earth where living organisms occupies.
Bacteria are single celled prokaryotic organisms. Prokaryotic means that they do not contain membrane-bound organelles. In simpler terms, they don't have cell parts within their cytoplasm. Bacteria are classified by their shape- round or cocci, rod or bacilli, and spiral or spirilla. Bacteria may also have long whip-like tails called flagella or be covered with small hair-like projections called cilia. Both structures are used for movement. Bacteria may have a cluster of free floating DNA in its cytoplasm called a nucleoid or they may have additional small rings of DNA called plasmids. Lastly, a bacterium have a cell wall made of a special compound called peptidoglycan which can provide an extra layer of protection from many environmental conditions.
