The Gas Tail of a Comet Always

question 46

Multiple Choice

The gas tail of a comet always

• A) trails behind the head along the orbital path.
• B) extends ahead of the head along the orbital path.
• C) points toward the sun.
• D) points away from the sun.
• E) points perpendicular to the orbital path.

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Definitions:

Integral Proteins

Proteins that are permanently embedded within the lipid bilayer of cell membranes, playing roles in various cellular functions including transport and signal transduction.

Cell Membrane

A biological membrane that separates the interior of all cells from the outside environment, controlling the movement of substances in and out of cells.

Receptor-medicated Endocytosis

A cellular process in which substances are brought into the cell through receptors that bind to specific molecules.

ATP Production

The creation of adenosine triphosphate (ATP), a molecule that stores and transfers energy within cells, through processes such as cellular respiration and photosynthesis.