What are cyclins and CDKs, and how do they function in the cell cycle?
AP Biology Unit 4 Review

Flashcard
•
Biology
•
11th - 12th Grade
•
Hard
Quizizz Content
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Back
Cyclins are proteins that regulate the cell cycle by activating cyclin-dependent kinases (CDKs). CDKs, once activated by cyclins, phosphorylate target proteins to drive the cell cycle forward, facilitating processes such as cell division.
2.
FLASHCARD QUESTION
Front
What is the role of secondary messengers in cell signaling?
Back
Secondary messengers are molecules that relay signals received at receptors on the cell surface to target molecules inside the cell, amplifying the signal and triggering a cellular response.
3.
FLASHCARD QUESTION
Front
What is positive feedback in biological systems?
Back
Positive feedback is a process where the output of a system enhances or amplifies the initial stimulus, leading to an even greater response. An example is the release of inflammatory cytokines by immune cells.
4.
FLASHCARD QUESTION
Front
How do cancerous cells differ from healthy cells in terms of cell cycle?
Back
Cancerous cells typically have a much shorter cell cycle compared to healthy cells, allowing them to divide uncontrollably and proliferate.
5.
FLASHCARD QUESTION
Front
What triggers the release of glucagon in the body?
Back
Glucagon is released when blood glucose levels are low, particularly when there is a low cellular ATP concentration, signaling the need for energy.
6.
FLASHCARD QUESTION
Front
What is the function of insulin in blood sugar regulation?
Back
Insulin lowers blood sugar levels by facilitating the uptake of glucose into cells and promoting the storage of glucose as glycogen in the liver.
7.
FLASHCARD QUESTION
Front
What is the difference between autocrine and paracrine signaling?
Back
Autocrine signaling occurs when a cell targets itself, while paracrine signaling involves a cell communicating with nearby cells through the release of signaling molecules.
Create a free account and access millions of resources
Similar Resources on Wayground
15 questions
Cell Signaling

Flashcard
•
11th - 12th Grade
15 questions
Unit 4 Review: Cell Comm. and Division (AP)

Flashcard
•
12th Grade
15 questions
AP Biology - Unit 4 Review

Flashcard
•
12th Grade
15 questions
AP Biology Unit 4

Flashcard
•
12th Grade
15 questions
Unit 4: Cell Communication & The Cell Cycle Review

Flashcard
•
11th - 12th Grade
15 questions
AP Cell Communication

Flashcard
•
11th - 12th Grade
15 questions
Unit 4: Cell Communication and Cell Cycle

Flashcard
•
11th Grade - University
15 questions
Cell Signaling

Flashcard
•
11th - 12th Grade
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade