MCAT · Biology 1 · Chapter 1 · Section 1.7

Chapter 1: Biological Molecules and Enzymes

Section 1.7: Minerals

STUDY

Question 1:
Minerals are the dissolved _____ (organic or inorganic) ions inside and outside the cell. By creating _____ across membranes, they assist in the transport of substances entering and exiting the cell. They can combine and solidify to strengthen a matrix; an example for this is _____ in bone. They can also act as cofactors to assisti enzyme and protein function; an example for this is _____ in heme, the prosthetic (AKA _____) group of _____.
→ Inorganic
    Electrochemical gradients
    Hydroxyapatite
    Iron
    Non-proteinaceous
    Cytochromes

Question 2:
Name 9 levels of organization in an organism, from lowest to highest.
→ Atoms
    Molecule
    Macromolecule
    Organelle
    Cell
    Tissue
    Organ
    Organ system
    Organism

PRACTICE

Question 1:
Minerals are the dissolved _____ (organic or inorganic) ions inside and outside the cell. By creating _____ across membranes, they assist in the transport of substances entering and exiting the cell. They can combine and solidify to strengthen a matrix; an example for this is _____ in bone. They can also act as cofactors to assisti enzyme and protein function; an example for this is _____ in heme, the prosthetic (AKA _____) group of _____.

Question 2:
Name 9 levels of organization in an organism, from lowest to highest.

ANSWER KEY

Question 1:
→ Inorganic
    Electrochemical gradients
    Hydroxyapatite
    Iron
    Non-proteinaceous
    Cytochromes

Question 2:
→ Atoms
    Molecule
    Macromolecule
    Organelle
    Cell
    Tissue
    Organ
    Organ system
    Organism