How many heme groups does each hemoglobin molecule contain?

a. one
b. two
c. four
d. eight


c. four

Biology & Microbiology

You might also like to view...

The rickettsias are divided into groups based loosely on

A) the types of clinical disease they produce. B) their insect vectors. C) taxonomy. D) their biochemical requirements.

Biology & Microbiology

If gastrulation failed to occur, which of the following structures would not be formed?

A. ectoderm B. blastocyst C. inner cell mass D. epiblast E. All of the answer options are correct.

Biology & Microbiology

The edible portion of the mushroom is the ________

A) mycelium B) hypha C) spore D) above-ground reproductive structure

Biology & Microbiology

Flimmer filaments ________.

A. function to move cells on solid surfaces B. are components of all eukaryotic flagella C. permit flagella to pull rather than push the cell D. are found on whiplash flagella

Biology & Microbiology