How do carrier proteins recognize substances to transport in active transport? a. they will allow any substance to pass. c. they have a pore that only the substance will fit through. b. they have a specific binding site for the substance. d. the substance recognizes the carrier protein.

What is produced during the krebs cycle? co2, atp, nadh, and fadh2 pyruvate, co2, and atp atp, fadh2, and h2o h2o, adp, and nadh

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Which beat describes the brain stem