11.30.17 Which organelle is in charge of the cell?

Nucleus

●  Control Center of the cell.

●  Location of genetic material

●  Separated from cytoplasm by nuclear membrane

Cell Membrane

●  Creates external boundary of cell

●  Made of double phospholipid bilayer

●  Determines what gets in and what doesn’t

Mitochondria

●  Site of cellular respiration

●  Has curved double inner membrane

●  Powerhouse of the cell

DNA is located in what part of the cell?

●  A. Organelle ●  B. Mitochondria ●  C. Cell membrane ●  D. Nucleus ●  E. All of the above

Controlling the amount of sodium ions (salt) inside a cell would be the job of:

●  A. Organelles ●  B. nucleus ●  C. Cell membrane ●  D. Mitochondria ●  E. All of the above

Ribosomes

●  Manufactures proteins

●  Located in cytoplasm & on Rough Endoplasmic Reticulum

Lysosomes

●  Vesicles containing digestive enzymes

●  Breaks down large molecules and old cell parts.

Centrioles

●  Paired cylindrical structures

●  Play an important role in cellular reproduction

DNA contains messages to create proteins, these are made by:

●  A. Lysosomes ●  B. Ribosomes ●  C. Centrioles ●  D. Mitochondria ●  E. All of the above

Endoplasmic Reticulum

●  Synthesis and transport of lipids (fats) and proteins

●  Large network of sacks and tubes from nucleus to plasma membrane

●  Rough (with ribosomes) and smooth

Golgi Apparatus

●  Packages cell Products for export from the cell (ex. saliva)

●  Stack of flattened pancakes

Cytoplasm

●  Jelly-like substance throughout the cell’s interior

●  Cell organelles are suspended in cytoplasm

A message from the nucleus to another cell would be sent by:

●  A. Golgi apparatus ●  B. Cytoplasm ●  C. Endoplasmic Reticulum ●  D. Lysosomes ●  E. All of the above

Vacuole

●  Storage area for water, nutrients, and waste products

●  Varies in size, much larger in plants (as big as 50% of the cell)

Cytoskeleton

●  Constructed of hollow microtubules

●  Gives cell structure

●  Gives cell capability for movement

Plant Only Organelles! (well, non-animal anyway)

Chloroplasts

●  Site of photosynthesis

●  Contain chlorophyll which captures the sun’s energy

Cell Wall

●  Made of cellulose

●  Provides rigid outside structure of cell membrane

Now –

•  Ms. K checks off Tuesday’s Assignment

•  Work on completing your table – City Analogy & Cartoon

– Cell Types

12.01.17Whichstructureisresponsibleformakingproteins?

•  I can use a microscope and view protists.

Parts of the Light Microscope

T. Trimpe 2003 http://sciencespot.net/

A. EYEPIECEContains the OCULAR lens

J. COARSE ADJUSTMENT KNOB

Moves the stage up anddown for FOCUSING

I. FINE ADJUSTMENT KNOB

Moves the stage slightly to SHARPEN the image

G. BASESupports the MICROSCOPE

D. STAGE CLIPSHOLD the slide in place

C. OBJECTIVE LENSESMagnification ranges from

10 X to 40 X

F. LIGHT SOURCEProjects light UPWARDS through the diaphragm,

the SPECIMEN, and the LENSES

H. DIAPHRAGMRegulates the amount of LIGHT on the specimen

E. STAGESupports the SLIDE

being viewed

K. ARMUsed to SUPPORT the

microscope when carriedB. NOSEPIECEHolds the HIGH- and LOW- power

objective LENSES; can be rotated to change MAGNIFICATION.

Power = 10 x 4 = 40 Power = 10 x 10 = 100 Power = 10 x 40 = 400What happens as the power of magnification increases?