SZABMU AHS 2026 Cell Biology Free Quiz 10

1. Which adhesion molecules require calcium for their function?

A. Calcium-independent B. Calcium-dependent (Cadherins) C. Magnesium-dependent D. ATP-dependent

2. Which adhesion molecules mediate leukocyte rolling?

A. Integrins B. Cadherins C. Selectins D. IgCAMs

3. Which protein is the central transcription co-activator in Wnt signaling?

A. Beta-catenin B. Notch C. Hedgehog D. TGF-beta

4. What type of signaling is Notch?

A. Paracrine B. Juxtacrine (cell-cell contact) C. Endocrine D. Autocrine

5. Which transcription factors are downstream effectors of Hedgehog signaling?

A. Gli B. Beta-catenin C. Notch D. SMAD

6. Which component is rich in fibronectin, laminin, and collagen?

A. Plasma membrane B. Cytoskeleton C. Nucleus D. ECM

7. Which cell-ECM adhesion sites are involved in mechanosensing?

A. Focal adhesions B. Desmosomes C. Gap junctions D. Tight junctions

8. Which tumor suppressor protein is a key sensor of DNA damage and can halt the cell cycle?

A. Rb B. p53 C. p21 D. Cyclin D

9. Which enzyme extends telomeres using an RNA template?

A. DNA polymerase B. Telomerase C. Primase D. Helicase