Lesson 2 Cell Structure

Question 1

Cell wall

Answer 1

Part of a plant cell that surrounds the outside of the cell and provides the plant with a definite shape

Question 2

centriole

Answer 2

small round organelle near nucleus that are responsible for forming spindle fibers used in mitosis and cell division.

Question 3

chloroplast

Answer 3

organelle in plant cells where photosynthesis occurs

Question 4

chromatin

Answer 4

material that chromosomes are made of and consisting of protein, RNA and DNA

Question 5

chromosomes

Answer 5

threadlike structure of nucleic acids and protein found in the nucleus of most cells that carries genetic information In form of genes.

Question 6

cytoplasm

Answer 6

material surrounding the nucleus in a cell that contains organelles

Question 7

cytoskeleton

Answer 7

microscopic network of protein filaments and tubules in cytoplasm that provides shape and coherence.

Question 8

endoplasmic reticulum

Answer 8

network of membranous tubules in cytoplasm that usually has ribosomes attached and is involved in making proteins and lipids

Question 9

Golgi apparatus

Answer 9

complex of vesicles and membranes in cytoplasm that is involved in secretion and intracellular transport

Question 10

lipid bilayer

Answer 10

term referring to structure of cell membrane because it is composed of two layers of fat cells organized in two sheets

Question 11

lysosomes

Answer 11

organelle containing enzymes that is responsible for breaking down worn out cell parts and damaged cells

Question 12

mitochondria

Answer 12

organelle in cell where energy is made and stored

Question 13

nuclear envelope

Answer 13

Double membrane structure that encloses the contents of the nucleus.

Question 14

nuclear pores

Answer 14

complexes in nuclear envelope that allow for transport of molecules across the envelope both into and out of nucleus

Question 15

nucleolus

Answer 15

dense spherical structure in nucleus during interphase and helps make ribosomes

Question 16

ribosome

Answer 16

organelles in cytoplasm and on endoplasmic reticulum that are sites where proteins are made.

Question 17

vacuole

Answer 17

space or vesicle within cytoplasm of a cell usually containing fluid.