Lab 1A

Question 1

Golgi Apparatus

Answer 1

Stacks of flattened discs of membrane that serve to package substances into secretory vesicles for secretion from the cells (lysosomes and peroxisomes are not visable)

Question 2

Nucleus

Answer 2

Contains Chromosomes, which consist of DNA and protein,

Question 3

Endoplasmic Reticulum Rough ER Smoth ER

Answer 3

A complex system of channels fromed from membrane Rough: When ribosomes are present Smooth: If ribosomes are absent

Question 4

Microtubules

Answer 4

long, thin tubules formed from the protein tubulin

Question 5

Micofilaments

Answer 5

Long, fine strands fromed from the protein actin

Question 6

Centrosome

Answer 6

Contains Centrioles, which are involved in formation of the spindle apparatus

Question 7

Ribosomes

Answer 7

Small, Dense particles which are the sites of protein sythesis

Question 8

Spindle Apparatus

Answer 8

A system of microtubules that guides teh chromosomes during mitosis and meiosis

Question 9

Kinetochore

Answer 9

where the chromosomes are attached to each other and the spindle

Question 10

Nucleolus

Answer 10

a dense structure within the nucleus where ribsomal RNA is synthesized

Question 11

Plasma Membrane

Answer 11

Forms the outer surface of each cell and exerts crucial regulation over the movement of most substances into and out of the cell. The Fluid within is called the Cytosol

Question 12

Polyribosomes

Answer 12

A cluster of ribosomes heald together with an mRNA molecule

Question 13

Chromatin

Answer 13

Chromosomes in thier disperesed form

Question 14

Nuclear Envelope

Answer 14

A double-layered membrane surrounding the nucleus

Question 15

Nuclear Pores

Answer 15

Found in the Nuclear membrane

Question 16

Mitochondria

Answer 16

Double layered walls, with the inner wall highly folded into cristae