Bio Lecture 1-16-13

Front 1

structural proteins

Back 1

Attach to cytoskeleton to provide support, maintain cell shape, anchor
membrane proteins
– Attach to proteins of other cells (intercellular joining)

Front 2

cell signaling

Back 2

receptor proteins trigger cellular responses when molecules blind to them

Front 3

transport proteins

Back 3

regulate movement of molecules through membrane
channel proteins or Carrier proteins

Front 4

recognition proteins

Back 4

serve as id tags of sorts... many of these glycoproteins with carbohydrate groups attached

Front 5

the nucleus

Back 5

control center of the cell
consists of nuclear envelope, nucleolus, and chromatin

Front 6

nuclear envelope

Back 6

is a selectively permeable

Front 7

chromatin

Back 7

contains DNA which codes for protein production

Front 8

nucleolus

Back 8

is th esite of ribosome production
(small particle of RNA + protein that serves to build proteins )

Front 9

endoplasmic reticulum

Back 9

continuous with nuclear envelope
rough (RER): studded with robosomes, synthesizes primarily proteins
Ribosomes: molecules that actually synthesizes primarily lipids

Front 10

golgi complex

Back 10

sorts and separates proteins and lipids fromt the ER into functional groups
modifies ome molecules ( protein + sugar=glycoprotein)
prackages sorted material for transport to other parts of the cell vacuole

Front 11

vesicle

Back 11

something that contains molecules

Front 12

lysosomes

Back 12

Specialized vesicle from Golgi containing digestive enzymes
• Fuse with food vacuoles or damaged organelles and digest contents

Front 13

contractile vacuoles

Back 13

– Important in water regulation – Freshwater protists have to
eliminate excess water

Front 14

overview of the endomembrane system

Back 14

nuclear envelope is connected to rough er which is also continuous with smooth er

2. transport vesicles(protein+membranes from the ER) flow to the cis face of the Golgi

Golgi pinches off transport vesicles sorts to 3. Vacuoles 4. Lysosomes 4. plasma membrane 6. plasma membrane expands by fusion of vesicles proteinscan be secreted from the cell

Front 15

botboth plant and animal cells have ____________

Back 15

Mitochondria
use energy stored in food molecules to create ATP

Front 16

plant cells have _________

Back 16

chloroplasts
The site of photosynthesis
where light energy is converted to ATP

Front 17

cytoskeleton
functions: 3

Back 17

network of protein fibers microfilaments, intermediate filaments, and microtubules
Meiosis and Mitosis, movement of chromosomes, cell division

Front 18

motile appendages

Back 18

extensions from a cell that aid in locomotion

Front 19

flagella

Back 19

often single
propel celll by undulating ship like motion

Front 20

cilia

Back 20

generally numerous
short and produce movement by coordinated back and forth motion