Which Experimental Observation Would Provide Evidence That a Bacterial Membrane

question 152

Multiple Choice

Which experimental observation would provide evidence that a bacterial membrane protein transfers the sugar lactose into the cell via secondary active transport?

• A) The membrane protein undergoes a conformational change when it binds lactose.
• B) The membrane protein binds lactose but has no nucleotide binding site.
• C) The membrane protein transfers lactose against its concentration gradient.
• D) The membrane protein binds to sodium ions at a site different from the lactose site.
• E) The membrane protein from the bacterium shares many structural similarities with the corresponding membrane protein from yeast.

Understand the concept of genetic variation and its sources.

Grasp the definition and principles of species and speciation.

Comprehend the structure and function of DNA, including its role in genetics and protein synthesis.

Identify and explain different forms of selection and adaptations in organisms.

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Definitions:

Pedal Pulse

This refers to the pulse that can be felt over the dorsal pedis artery of the foot, commonly assessed to evaluate peripheral circulation.

Elbow

The joint connecting the forearm to the upper arm, allowing for a wide range of arm movements.

Blood Pressure Cuff

A medical device used to measure blood pressure, consisting of an inflatable cuff to restrict blood flow, and a manometer to measure the pressure.

Popliteal Artery

The artery located behind the knee that provides blood supply to the lower leg, knee, and thigh.