ScienceBiologyChapter 3 A&P example #64515
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Chapter 3 A&P

Ondina Perry avatar Ondina Perry
24 July 2022
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question
Which of the following statements is NOT one of the four major concepts of the cell theory?
answer
The function of a cell dictates the structure and organelles of the cells.
question
Which of the following factors act to bind cells together?
answer
specialized junctions, wavy membrane contours, and glycoproteins
question
You observe a small, nonpolar molecule near a membrane. How would this molecule likely transport across the membrane?
answer
simple diffusion
question
What is the difference between active and passive transport across the plasma membrane?
answer
Active transport is ATP dependent, whereas passive transport uses only the kinetic energy of the particles for movement across the plasma membrane.
question
What is a membrane potential?
answer
a voltage or electrical charge across the plasma membrane
question
Which of the following organelles is correctly paired with its function?
answer
smooth endoplasmic reticulum: metabolism of lipids
question
Which of the following correctly states the functions of the rough endoplasmic reticulum?
answer
synthesis of the cell's membranes
question
As you look under a microscope you see a nucleus with a large density of nucleolus. What inference can you make about that cell?
answer
The cell is producing a large amount of proteins.
question
What must happen before a body cell can begin mitotic cell division?
answer
Its DNA must be replicated exactly so that identical copies of the cell's genes can be passed on to each of its offspring.
question
What are the two basic steps of polypeptide synthesis?
answer
transcription and translation