cells

Question 1

principle parts of cell

Answer 1

• plasma membrane
• cytoplasm
• organelles
• nucleus

Question 2

• seperates from external environment of the cell
• selectively permeable
• communication

Answer 2

plasma membrane

Question 3

• fluid part of cell

- little organs that do the functions

Answer 3

cytoplasm and organelles

Question 4

contains DNA and directs cell activities

Answer 4

nucleus

Question 5

6 types of membrane proteins

Answer 5

• ion channel
• carrier
• receptor
• enzyme
• linker
• cell identity marker

Question 6

ion channel function

Answer 6

forms pore which specific ions can flow through

Question 7

carrier membrane protein

Answer 7

transports a specific substance acrodd membrane by undergoing change in shape

Question 8

receptor membrane protein

Answer 8

recognizes specific ligand and alters cells function in some way

Question 9

enzyme

Answer 9

catalyzes reaction inside or outside cell.

Question 10

linker

Answer 10

anchors filaments inside and outside the plasma membrane

Question 11

cell identity marker

Answer 11

distinguieshes cells from anyone elses

Question 12

steps of mitosis

Answer 12

interphase
prophase 
metaphase 
anaphase 
telophase

Question 13

• chromosomes become visible

- nuclear membrane & necleolus dissapear

Answer 13

prophase

Question 14

chromosomes line up in center of cell and have attached spindle fibers

Answer 14

metaphase

Question 15

centromeres split and chromatids on opposite sides

Answer 15

anaphase

Question 16

cytoplasm is divided and cells seperate

Answer 16

telophase