Cell Junctions
Authored by Racheal Osman
Biology
University
NGSS covered
Used 675+ times
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This quiz focuses on cell junctions, which are specialized protein structures that connect adjacent cells in multicellular organisms. The content targets advanced high school biology or introductory college-level students, as it requires understanding of complex cellular structures and their physiological functions across different organ systems. Students need to master the three main types of animal cell junctions - tight junctions, gap junctions, and desmosomes - along with their plant equivalent, plasmodesmata. The questions assess students' ability to differentiate between junction types based on their structural properties and functional roles, requiring knowledge of how tight junctions create impermeable barriers, gap junctions allow direct cytoplasmic communication and ion flow, and desmosomes provide mechanical strength through spot-weld connections. Additionally, students must understand basic membrane biology concepts including hydrophilic and hydrophobic properties and the role of proteins in membrane structure. Created by Racheal Osman, a Biology teacher in US who teaches grade 13. This quiz serves as an excellent tool for reinforcing cellular biology concepts after students have studied cell structure and tissue organization. The assessment works particularly well as a formative evaluation to gauge student understanding before moving into more complex topics like tissue physiology or organ system function. Teachers can implement this quiz as a warm-up activity to activate prior knowledge, assign it as homework to reinforce classroom learning, or use it as a review tool before unit exams. The variety of question formats, from direct knowledge recall to application-based scenarios involving cardiac muscle and bladder function, allows students to demonstrate both memorization and conceptual understanding. This assessment aligns with NGSS LS1.A (Structure and Function) standards, as students analyze how the structure of different cell junctions directly relates to their specific biological functions in maintaining tissue integrity and cellular communication.
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Student View
10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Plasmodesmata in plant cells are analogous to what structure in animal cells?
Tight junctions
Gap junctions
Adhesion junctions/Desmosomes
Vacuoles
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Urine is confined to the human bladder in part due to the structure of junctions that connect the cells lining the bladder. These junctions form a barrier that prevents the exchange of ions and solutes between the blood and urine. What is the likely identity of these junctions?
Gap junctions
Tight junctions
Desmosomes
Plasmodesmata
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of cellular junction is prominent in cardiac myocytes and allows for a unified contraction of the heart? Hint: in order for these cells to contract in unison, ions need to flow rapidly between them.
Tight
Desmosomes
Gap
Plasmodesmata
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these correctly matches the cellular junction with its function?
Gap junctions prevent the flow of ions and water from one part of the body to another
Adhering junctions (AKA desmosomes) are branched network of proteins that are impermeable to fluids
Gap junctions are connections that directly connect the cytoplasm of two cells
Tight junctions are random, spot attachments between cells that prevent tearing of tissue
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Platelets are small cellular fragments that have no nucleus. Their job is to clot together at tears and cuts in the skin to prevent bleeding out of the organism. Which type of junction would you expect to form between platelets?
Gap
Tight
Adhering/Desmosomes
Plasmodesmata
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
"Water Loving"
Tags
NGSS.HS-ESS2-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
"Water Fearing"
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