AP Biology Practice Quiz: Cell Communication
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Test your understanding with short quizzes. This quiz has 14 questions to check your progress.
Question 1 of 14
All Questions (14)
A) Electrical and chemical signals
B) Direct contact and chemical signaling
C) Short-distance and long-distance regulators
D) Hormones and local regulators
Correct Answer: B
The text explicitly states, 'Cells communicate through direct contact or via chemical signaling from a distance.' These are the two primary methods described.
A) Signals travel long distances to target cells of a different type.
B) Cells use local regulators to target cells in the immediate vicinity.
C) Communication occurs exclusively through direct physical contact.
D) Hormones are released to coordinate widespread physiological responses.
Correct Answer: B
The content states, 'Cells communicate over short distances using local regulators that target cells in the immediate vicinity.' This option directly reflects that statement.
A) Direct contact
B) Short-distance communication
C) Local regulation
D) Long-distance communication
Correct Answer: D
The text describes this exact scenario: 'Signals released by one cell type can travel long distances to target cells of another type, such as through hormones.'
A) Hormones
B) Long-distance signals
C) Local regulators
D) Contact messengers
Correct Answer: C
The provided content specifies that cells 'communicate over short distances using local regulators that target cells in the immediate vicinity.'
A) A local regulator
B) A direct contact signal
C) A hormone
D) A vicinity-targeting molecule
Correct Answer: C
The text provides a specific example for long-distance signaling: 'Signals released by one cell type can travel long distances to target cells of another type, such as through hormones.'
A) Hormones traveling a long distance.
B) Direct physical contact.
C) Local regulators over a short distance.
D) A signal targeting a different cell type far away.
Correct Answer: C
The scenario describes a signal affecting cells 'directly adjacent to it' or in the 'immediate vicinity,' which aligns with the definition of communication using local regulators over short distances.
A) Short-distance, using local regulators.
B) Long-distance, involving a signal traveling to a different cell type.
C) Direct contact between brain cells and kidney cells.
D) Local signaling within the immediate vicinity of the pituitary gland.
Correct Answer: B
This scenario involves a signal (hormone) traveling a long distance from one cell type (pituitary) to another (adrenal), which is the definition of long-distance communication provided in the text.
A) Local regulators are used for direct contact, while hormones are chemical signals.
B) Local regulators act on nearby cells, while hormones act on distant cells.
C) Hormones target cells of the same type, while local regulators target different cell types.
D) Only hormones are considered a form of chemical signaling.
Correct Answer: B
The text distinguishes the two by distance: 'Cells communicate over short distances using local regulators that target cells in the immediate vicinity,' whereas signals like hormones 'can travel long distances to target cells.'
A) All chemical signaling occurs over long distances.
B) Direct contact is the only method for short-distance communication.
C) Both short- and long-distance communication can be achieved through chemical signaling.
D) Hormones and local regulators are two types of direct contact signaling.
Correct Answer: C
The text describes chemical signaling via 'local regulators' for short distances and 'hormones' for long distances, demonstrating that chemical signals are used for both.
A) Communication through direct physical contact.
B) The use of hormones for long-distance signaling.
C) The specific molecular structure of a signal receptor.
D) The use of local regulators for short-distance signaling.
Correct Answer: C
The text describes direct contact, hormones, and local regulators. It does not provide any information about the structure of signal receptors or any part of the signal transduction pathway.
A) A different tissue type far from the signaling cell.
B) The same cell that released the signal.
C) The immediate vicinity of the signaling cell.
D) Any cell throughout the organism that has the correct receptor.
Correct Answer: C
The text explicitly states that local regulators 'target cells in the immediate vicinity.'
A) Direct contact
B) Local regulators
C) Long-distance signaling
D) Vicinity-based signaling
Correct Answer: C
The significant distance between the brain and leg muscles necessitates a long-distance signaling mechanism, such as the hormones described in the text, to bridge the gap.
A) The signal is a chemical or an electrical impulse.
B) The cells are physically touching or are separated by a distance.
C) The target cell is of the same type or a different type.
D) The communication is fast or slow.
Correct Answer: B
The text introduces the two main methods as 'direct contact' and 'via chemical signaling from a distance,' making the physical proximity of the cells the key distinguishing factor between these two broad categories.
A) Two cells that are in direct physical contact.
B) Cells of the same type in the immediate vicinity.
C) A signaling cell and multiple target cells of a different type.
D) A single cell and its immediate, identical neighbors.
Correct Answer: C
The text states that 'Signals released by one cell type can travel long distances to target cells of another type,' implying communication between different types of cells over a distance.