Chapter 3 - Plant Cells

Question 1

It is a theory that the cell is the basic unit of life, of which all living things are composed, and that all cells are derived from preexisting cells.

Answer 1

Cell Theory

Question 2

A cell that posses a nucleus and other membrane-bound organelles.

Answer 2

Eukaryotic Cell

Question 3

A cell that lacks nuclei and other membrane-bound organelles.

Answer 3

Prokaryotic Cell

Question 4

It is the living surface membrane of a cell, and acts as a selective barrier to passage of materials into and out of the cell.

Answer 4

Plasma Membrane

Question 5

A cellular organelle that contains DNA and serves as control center of the cell.

Answer 5

Nucleus

Question 6

A group of membrane-bound organelles occurring in photosynthetic eukaryotic cells.

Answer 6

Plastid

Question 7

It is the site of photosynthesis.

Answer 7

Chloroplast

Question 8

An intracellular organelle associated with cellular respiration.

Answer 8

Mitochondrion

Question 9

A cellular organelle; site of protein synthesis.

Answer 9

Ribosome

Question 10

An organelle composed of an interconnected network of internal membranes within eukaryotic cells.

Answer 10

Endoplasmic Reticulum

Question 11

Type of ER that is associated with ribosomes.

Answer 11

Rough ER

Question 12

Type of ER that lacks ribosomes.

Answer 12

Smooth ER

Question 13

An organelle composed of a stack of flattened membranous sacs.

Answer 13

Golgi Body

Question 14

An organelle that modifies, packages, and sorts proteins that will be secreted or sent to the plasma membrane or other organelles.

Answer 14

Golgi Body

Question 15

A large, fluid-filled. membrane-bound sac within the cytoplasm that contains a solution of salts, ions, pigments, and waste materials.

Answer 15

Vacuole

Question 16

It is composed of microtubules and microfilaments; it maintains the cell’s shape; involved in cellular movement.

Answer 16

Cytoskeleton

Question 17

It is comparatively rigid supporting exterior to the plasma membrane in plants, fungi, prokaryotes, certain protist.

Answer 17

Cell Wall

Question 18

These are specialized channels that is responsible for communication between plant cells.

Answer 18

Plasmodesmata

Question 19

Organelles found in plant cells, but not found in animal cells?

Answer 19

Plastids, Cell walls, Large Vacuoles

Question 20

Organelles found in animal cells, but not found in plant cells?

Answer 20

Centrioles, Lysosomes

Question 21

The current model for the structure of the plasma membrane.

Answer 21

Fluid Mosaic Model

Question 22

Nonpolar, _____ fatty acid chains of phospholipids project into interior of the double-layered membrane.

Answer 22

Hydrophobic

Question 23

Polar, _____ located on two surfaces of the double-layered membrane.

Answer 23

Hydrophilic heads

Question 24

It is a net movement of particles along a concentration gradient from an area of higher concentration to an area of lower concentration.

Answer 24

Diffusion

Question 25

It is the net movement of water by diffusion through a selectively permeable membrane.

Answer 25

Osmosis

Question 26

It is where a carrier protein helps move a material across a membrane in the direction of the concentration gradient, from high to low concentration.

Answer 26

Facilitated Diffusion

Question 27

It is when energy is expended to move a material against the concentration gradient, from low to high concentration.

Answer 27

Active Transport