What are three ways that biochemists study biological organisms? - ANSWER Biochemists
study 1) the relationship between structure and function of biomolecules, 2) chemical reac-
tions of organisms (metabolism), and 3) communication within and among organisms.
What is the definition of biochemistry? - ANSWER Often referred to as the chemistry of
life, biochemistry asks how the remarkable properties of organisms relate to their mole-
cules.
What is another name for firefly? - ANSWER lightning bug
Is Li an element common in biological organisms? - ANSWER No. See Figure 1.3 for the
common elements.
What is known as the "medium of life"? - ANSWER Water
What is the bond angle associated with trigonal pyramidal shape? - ANSWER 107.5 de-
grees
Are transition metals commonly found in biological organisms? - ANSWER Yes. They are
trace elements in organisms. See Figure 1.3 for examples.
True or false: Water can make up 85% (by mass) of a living organism. - ANSWER True.
Some plants are made up of 90% water by mass.
True or false: Large elements tend to make the strongest covalent bonds. - ANSWER
False. Smaller elements tend to make the strongest bonds due to significant overlap.
1
study 1) the relationship between structure and function of biomolecules, 2) chemical reac-
tions of organisms (metabolism), and 3) communication within and among organisms.
What is the definition of biochemistry? - ANSWER Often referred to as the chemistry of
life, biochemistry asks how the remarkable properties of organisms relate to their mole-
cules.
What is another name for firefly? - ANSWER lightning bug
Is Li an element common in biological organisms? - ANSWER No. See Figure 1.3 for the
common elements.
What is known as the "medium of life"? - ANSWER Water
What is the bond angle associated with trigonal pyramidal shape? - ANSWER 107.5 de-
grees
Are transition metals commonly found in biological organisms? - ANSWER Yes. They are
trace elements in organisms. See Figure 1.3 for examples.
True or false: Water can make up 85% (by mass) of a living organism. - ANSWER True.
Some plants are made up of 90% water by mass.
True or false: Large elements tend to make the strongest covalent bonds. - ANSWER
False. Smaller elements tend to make the strongest bonds due to significant overlap.
1
