A Student Has Built a Model of a Plant Cell

question 45

Multiple Choice

A student has built a model of a plant cell for a science fair.It consists of a balloon filled with water that is placed within a plastic bag that also contains water,and this bag is held within a plastic box.In this model,the balloon most likely represents a _______,the plastic bag represents the _______,and the plastic box represents the _______.

• A) chromosome;nucleus;cell membrane
• B) vacuole;cell membrane;cell wall
• C) chloroplast;nucleus;cell membrane
• D) thylakoid;chloroplast;cell wall
• E) nucleus;cytoplasm;cell membrane

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Definitions:

Smooth ER

The smooth endoplasmic reticulum is a membrane-enclosed organelle found in eukaryotic cells, involved in lipid synthesis, detoxification, and calcium ion storage.

Phospholipids

A type of lipid molecule that forms the primary component of all cell membranes, consisting of two fatty acids and a phosphate group attached to glycerol.

Cell Membranes

Cell membranes are thin, flexible barriers that surround cells, regulating the passage of substances in and out of the cell, and providing structural support.

Vacuoles

Membrane-bound organelles in cells, particularly plant cells, which are involved in storage and maintenance of cellular homeostasis.