Which feature of the cell membrane allows some materials to go through, maintains homeostasis, contains protein channels for large molecules, and utilizes ATP energy for movement across the cell membrane?

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2

Consider the activity and specificity of the three enzymes.pepsin is most active in the human and to digest

Which of the following is not one of the mechanisms of enzyme catalysis by which the substrate is converted to the product? a. changing substrate orientation b. changing substrate reactivity c. inducing strain in the substrate d. preventing an induced fit d. preventing an induced fit