What type of cell junction is depicted here? a. Gap junctions b. Tight junctions

Question

What type of cell junction is depicted here? a. Gap junctions b. Tight junctions c. Anchoring junctions d. Plasmodesmata e. Desmosomes The enzyme lactase digests lactose. Two test tubes where set up using 5 mL of lactose syrup and 0.5 mL of lactase. Test tube one was incubated at 37 degree C, while test tube two was incubated at 15 degree C. Both tubes were incubated for 10 minutes. At the end of 10 minutes, the amount of glucose produced in test tube two when compared to test tube one would be: a. lower as the enzyme's active site would have denatured at this temperature. b. equal as lowering the temperature does not affect digestion of lactose. c. lower as there would be fewer collisions between the substrate and the enzyme. d. equal as the two test tubes contained the same amount of lactose and lactase enzyme

Explanation / Answer

Ans-d)

Gap junctions – These are intercellular connection between cytoplasm of two cells, which allows various molecules, ions and electrical impulses to directly pass through between cells.

Tight junctions- These are the closely associated areas of two cells where membranes are joined together forming a virtually impermeable barrier to fluid.

Anchoring junctions-These are cell junctions that help to anchor the components of the extracellular matrix. They are important for keeping the cells together and structural cohesion of tissues.

Plasmodesmata- It is a narrow thread of cytoplasm that passes through the cell walls of adjacent plant cells and allows communication between cells..

Desmosome- It is a structure by which two adjacent cells are attached and formed filaments from protein plaques in the cell membranes.

According to the diagram there is a gap between two cells .

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.