Biology CH 3: part 2

Question 0

Eukaryotes and Cell parts

• phospholipid boundary between cell and environment
• responsible for maintains homeostasis within the cell
• serves as a gate way to/from the cell

Answer 0

Plasma membrane

Question 1

Eukaryotes and Cell parts

Organelles in eukaryotic cells are proposed to have originated from ____ relations.

Answer 1

Symbiotic

ie small prokaryotic cells living in larger ones developed into organelles, forming the first eukaryotic cells.

Question 2

Eukaryotes and Cell parts

-not present in animal cells - gives protection and structure( from bursting), for plant cells a think but porous mesh of cell house fibers.

Answer 2

Cell wall

Question 3

Eukaryotes and Cell parts

____is the clear, gel like fluid inside of a cell.

Answer 3

Cytosol

Question 4

Eukaryotes and Cell parts

___ refers to EVERYTHING between the nucleus and plasma membrane

Answer 4

Cytoplasm

Question 5

Eukaryotes and Cell parts

• bound by a x2 membrane - contains DNA in the form chromatin (DNA bound with proteins)

Answer 5

Nucleus

Question 6

Eukaryotes and Cell parts

Is the organelle inside the nucleus and is the site where ribosomes begin formation.

Answer 6

Nucleolus

Question 7

Eukaryotes and Cell parts

____ are organelles at which proteins are made.

Answer 7

Ribosomes

Question 8

Eukaryotes and Cell parts

____ _____ are not attached to the ER, and are found in the cytosol. These ribosomes produce proteins for use in their cytosol.

Answer 8

Free ribosomes

Question 9

Eukaryotes and Cell parts

-made of phospholipids bilayer membrane - internal space of this is called lumen.

Answer 9

Endoplasmic reticulum

Question 10

Eukaryotes and Cell parts

___ ___ has attached ribosomes and tends to be in flatten sacs called cisternae. Has ribosomes and manufactures proteins to be shipped around cell/outside cell.

Answer 10

Rough ER

Question 11

Eukaryotes and Cell parts

No ribosomes and is more of a mesh of smaller interconnecting tubes. Site of lipid synthesis (includes steroids) metabolism(glycogen, son drugs etc.)

Answer 11

Smooth ER

Question 12

Eukaryotes and Cell parts

Flattened stack of tubular membranes, proteins transferred here from ER for modification, once modified packed into vesicals for transplant w/ in or out of the cell. (final modification and shipping)

Answer 12

Golgi apparatus

Question 13

Eukaryotes and Cell parts

For storage, tugor, pressure, hydrolysis, and growth, present in plant cells.

Answer 13

Central vacuole

Question 14

Eukaryotes and Cell parts

-contain hydrolytic enzymes- can fuse with vacuole to digest material.

Answer 14

Lysosomes

Question 15

Eukaryotes and Cell parts

• rids the body of toxic substances by removing hydrogen. Numerous in the liver where toxic by-product accumalate. -self replicating.- contains catalase. (pulls hydrogen and makes peroxides) in PA

Answer 15

Peroxisomes

Question 16

Eukaryotes and Cell parts

-site of cellular respiration(burning glucose and oxygen)-transform energy from stored carbs for use in cell.-have a double membrane (the inner contains the matrix (cellular resp.))where ATP(storage) is produced.

Answer 16

Mitochondria

Question 17

Eukaryotes and Cell parts

Color pigment(chlorophyll) is green (useless)-in green plant parts and some protists-double outer membrane w/inner discs(thylakoids) arranged in flat stacks called grana, surrounded by a liquid called stroma.

Answer 17

Chloroplast

Question 18

Eukaryotes and Cell parts

Found in animal, and most protist cells. Used in cell division. Made of micro tubules.

Answer 18

Centrioles

Question 19

Eukaryotes and Cell parts

Made of protein filaments (micro,intermediate filaments, and micro tubules.). Provide structure for both movement and stability of the cell.

Answer 19

Cytoskeleton

Question 20

Eukaryotes and Cell parts

Tell if in plant or animal cell

Lysosomes, cell wall, central vacuole, chloroplasts, centrioles.

Answer 20

Lysosomes and centrioles are in animal and cell wall, central vacuole, and chloroplasts are in plant.