Biology Section 4-4 Review: Unique Features of Plant Cells

Chlorophyll

Green pigment that is present in most plant cells, that gives plants their characteristic green color

How are secondary cell walls different from primary cell walls?

The growth of the primary cell wall occurs in one direction, and the secondary cell wall is very strong, but can no longer expand.

What are plant cell walls made of? What is the function of cell walls?

Cellulose and enzymes Support and protect the plant

Central vacuole

Large, fluid-filled organelle that stores water, enzymes, metabolic wastes, and other materials

Thylakoids

Membrane system found within chloroplasts that contains the components for photosynthesis

Plastid

Organelle of plant cells that contains specific substances and performs specific functions for the cells

Cell wall

Rigid structure that surrounds the cell membrane and provides support to the cell

Bacteria have a region called a nucleoid, in which their genetic material is located. Why, then, are bacteria classified as prokaryotes?

They lack a nucleus and membrane-bound organelles is why they are classifies as prokaryotes.

What is the appearance of a plant cell when water is plentiful?

Thicker than usual

Label each part of the figure in the spaces provided. This diagram represents a typical plant cell.

a. Golgi Apparatus b. Cell wall c. Central Vacuole d. Nucleus e. Nucleolus f. Mitochondria g. Ribosome h. Chloroplast I. Rough Endoplasmic Reticulum

A cell that contains a cell wall, chloroplasts, and a central vacuole is a

a. plant cell

Which of the following organelles is found in plant cells but not in animal cells?

b. chloroplast

The end products of photosynthesis include

b. sugars

Thylakoids are located

c. inside the inner membrane of a chloroplast

A central vacuole forms from

c. the fusion of smaller vacuoles