Regents Prep: Living Environment
Multiple-Choice Questions
Regents Prep Living Environment: Topical Multiple-Choice Question Archive
Use of Topical Archive Multiple-Choice Questions
Teachers:

Feel free to copy and paste any of the multiple-choice questions below for use in creating your own Regents-style assessments.

Graphics are easily downloaded by right-clicking on the desired image and selecting either Save Picture As... (Internet Explorer) or Save Image As... (Netscape).

Cellular Communication: Question 1 of 2
The diagram below shows the same type of molecule in area A and area B. With the passage of time, some molecules move from area A to area B. This movement is the result of the process of
 

  1. phagocytosis
  2. pinocytosis
  3. diffusion
  4. cyclosis

Correct Answer Number: 3

Explanation: Diffusion is the net movement of molecules from an area of high concentration to an area of low concentration and does not require any expenditure of energy. It is a form of passive transport. Since there are more molecules in area A to start, they tend to bump into each other more frequently and more are bumped into area B than molecules from area B are bumped into area A.


Cellular Communication: Question 2 of 2
Which substances are secreted at the endings of nerve cells?
  1. antibodies
  2. antigens
  3. neurotransmitters
  4. lipids

Correct Answer Number: 3

Explanation: Neurotransmitters are chemicals that allow the impulse to travel across the synapse or gap between two neurons. Antibodies are produced by white blood cells to fight infection, antigens are marker proteins that distinguish self cells from nonself cells, and lipids are a group of organic compounds including fats, oils, and waxes.
Copyright © 1999-2011 Oswego City School District Regents Exam Prep Center
RegentsPrep and StudyZone are FREE educational resources.