Enzymes work as a [blank_start]lock and key model[blank_end], where enzymes and [blank_start]substrates[blank_end] fit together. When they join together, a [blank_start]chemical[blank_end] [blank_start]reaction[blank_end] takes place.
Answer
lock and key model
chemical
reaction
substrates
Question 10
Question
Provide explanations for the following terms:
1. lipids - are [blank_start]fats[blank_end] and [blank_start]oils[blank_end]
2. enzymes - are [blank_start]proteins[blank_end] that act as [blank_start]catalysts[blank_end]
3. nucleic acids - are [blank_start]nitrogenous compounds[blank_end] found in all cells
4. vitamins - are [blank_start]complex[blank_end] organic compounds, found in small quantities in [blank_start]natural foods[blank_end]
5. unicellular - [blank_start]one[blank_end] cell organisms
6. multi cellular - [blank_start]multiple[blank_end] cell organisms
Answer
fats
oils
proteins
catalysts
nitrogenous compounds
complex
natural foods
one
multiple
Question 11
Question
[blank_start]Scanning Electron Microscopes[blank_end] (SEM's) scans the surface of cells and magnifies up to 100000 times.
[blank_start]Transmission Electron Microscopes[blank_end] (TEM's) focuses electrons through thin slice of cells to magnify up to 1 000 000 times.