The gap junctions of animal cells differ from the plasmodesmata ofplant cells in thata. gap junctions serve as communicating junctions and plasmodesmataserve as anchoring junctions.b. gap junctions prevent extracellular material from moving betweenadjacent cells but plasmodesmata do not.c. gap junctions allow for direct exchange of cellular material betweencells but plasmodesmata cannot allow the same type of exchange.d. gap junctions are formed by specialized proteins that form channelsthrough the membranes of adjacent cells but plasmodesmata areformed by connecting the plasma membranes of adjacent cells.e. All of the above are correct.

The gap junctions of animal cells differ from the plasmodesmata ofplant cells in thata. gap junctions serve as communicating junctions and plasmodesmataserve as anchoring junctions.b. gap junctions prevent extracellular material from moving betweenadjacent cells but plasmodesmata do not.c. gap junctions allow for direct exchange of cellular material betweencells but plasmodesmata cannot allow the same type of exchange.d. gap junctions are formed by specialized proteins that form channelsthrough the membranes of adjacent cells but plasmodesmata areformed by connecting the plasma membranes of adjacent cells.e. All of the above are correct.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter36: Digestion And Human Nutrition

Section: Chapter Questions

Problem 11SA

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Diseased animal cells may produce molecules thatactivate death cascades to kill the cells in a controlledmanner. Why would neighboring healthy cells also die?a. The death molecule is passed throughdesmosomes.b. The death molecule is passed throughplasmodesmata.c. The death molecule disrupts the extracellularmatrix.d. The death molecule passes through gap junctions.
The difference between a gap junction and plasmodesmata is… Select one: a. Gap junctions are formed by microfilaments while plasmodesmata are formed by membrane b. Gap junctions are anchoring junctions while plasmodesmata are protein junctions. c. Gap junctions are formed by proteins making pores between two animal cells while plasmodesmata are formed due to incomplete cell division of membranes from adjoining plant cells.
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Most adjacent plant cells are connected by plasmodesmata, whereas only certain adjacent animal cells are connected through gap junctions. What might account for this difference?
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