Biological molecules Flashcards
What atoms are present in:
- Carbohydrates
- amino acids
- Lipids
- Nucleic acid
C, H, O
2. C, H, O, N, S
3. C, H, O
4, C,H, O, P
Which type of molecule includes an example with a long chain carbon backbone?
2. What is the dominant element attached to the carbon backbone?
- lipid ( fatty acid tail long)
2. Hydrogen
Which molecule has a central carbon atom with 4 different components around it?
Amino Acid
What are the similarities between all 4 molecules?
They all contain C,H,O
Which building block of life is more likely to be a good source of energy for an organism and why?
-Fatty acid - as it has the most carbons so therefore more potential energy to provide to an organism
What happens with bonds during chemical reactions?
bonds within the molecules are continually broken and reformed.
What happens when bonds are formed?
energy is released from that molecule- some gets trapped within that new molecule and some escapes as heat
What happens if more energy is released from molecule than absorbed?
can be A good source of energy for a system
How is the disaccharide sucrose formed?
glucose and fructose
How is lactose formed?
glucose and galactose
How is maltose formed??
glucose and glucose
What type of reaction joins molecules together?
Condensation - water is removed
What is protein with less than 25 a.a??
Oligopeptide
What is a protein with more than 25 a.a?
polypeptide
What is a protein?
linear sequences of amino acids held together by peptide bonds. This forms a dipeptide.
