List in order the 6 steps of the scientific method.

List in order the 6 steps of the

scientific method.

What is the purpose of an enzyme?

At what temperature does

the maximum activity of enzyme

B occur?

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Today’s Goal: Reinforce cellular biology including:

-structure function of organelle

-Cell Transport

-Cell Division

1. Locate your bright ORANGE Core 40 Review Notes.

What are the chemicals of life?

Elements Building Blocks

Uses

CarbohydratesEx-sugar,starch

C,H,O Mono-saccharides

Energy

LipidsEx-butter, oil

C,H,O Fatty Acids & glycerol

Energy

ProteinsEx-meat, cheese

C,H,O,N,S Amino Acids

Structure, growth & repair

Nucleic AcidsEx-DNA,RNA

C,H,O,N,P Nucleotides

Genetic Information

Examples of nucleic acids include

A.sugars and starches B. DNA and RNA C. amino acids and fatty acids D. fats and proteins

Which of the following is not normally a function of proteins

in healthy cells?

A. long-term energy storage B. functioning as enzymes C. a component of cell

membranes

Which of the following is an example of an organic chemical

compound?

A. carbon dioxide, CO2 B. sufur trioxide, SO3 C. sodium chloride, NaCl D. glucose, C6H12O6

Types of CellsOrganelles and Functions

TransportationEnergy

PhotosynthesisRespiration Cell Division

http://www.sciencegeek.net/Biology/review/U2Photosynthesis.htm

http://www.sciencegeek.net/Biology/review/U2Respiration.htm

http://www.sciencegeek.net/Biology/review/U3Review.htm

How are cells organized?

CellTissue – functioning

group of cellsOrgan – functioning

group of tissuesOrgan System –

functioning group of organs

Organism – functioning group of organ systems

What is homeostasis?

Homeostasis Steady State Self-adjusting mechanism that helps to

maintain your internal environment

Prokaryotic or Eukaryotic?

Plant Cell or Animal Cell?

Prokaryotic or Eukaryotic?

Prokaryotic or Eukaryotic?Plant Cell or Animal Cell?

Name the Organelle?

Found in Plant Cells,

Animal Cells or Both?

Outside the Cell

Inside the Cell

Name the Organelle?

Found in Plant Cells, Animal Cells or Both?

How do cells transport materials?

Diffusion- movement of materials form a higher concentration to a lower concentration Hypertonic Hypotonic Isotonic

Osmosis- diffusion of water through a Membrane

How do cells transport materials?

Passive transport is the movement of materials without energy Diffusion, osmosis,

facilitated diffusionActive Transport

requires energy Pumps, exocytosis,

endocytosis

Outside the Cell

Inside the Cell

Enlarged

Name the Organelle?

Found in Plant Cells, Animal

Cells or Both?

Name the Organelle? Found in Plant Cells,


Name the Organelle?

Found in Plant Cells,


?

Name the Organelle?

Found in Plant Cells, Animal

Cells or Both?

DNA

What is it?

List the three parts of the Cell Theory.

1. All living things are made of cells.

2. Cells are the basic units of life.

3. All cells come from pre-existing cells.

What are the two basic types of cells?

Prokaryotes and Eukaryotes

Which type of cell has a nucleus?

Present your answers!

Eukaryote

This is the simpler of the two types of cells.

Prokaryotes

This type of cell has membrane-bound organelles.

Eukaryotic

______________ is the thin, flexible barrier around all cells.

Plasma membrane (Cell membrane)

The plasma membrane is made up of two layers of

______________.

Phospholipids

What are the two parts of a phospholipid called?

Head and a tail

These molecules are located in the hydrophobic region of the membrane and strengthen the

membrane.

Cholesterol

Scientists call the model they have developed to represent the

structure of the plasma membrane the ______ ________ model.

Fluid Mosaic

What does it mean to be selectively permeable?

To choose what goes in and what doesn’t

T or F. All cells have cell membranes.


True

T or F. All cells have DNA.


True

T or F. All cells have cytoplasm.


True

T or F. All cells have a nucleus.


False

T or F. All cells have a cell wall.

False – animal cells do not.

What is the name of the membrane that surrounds the

nucleus?

Nuclear envelope

What are the functions of the cytoskeleton?

For cell support and movement

The cytoskeleton is made up of what three components?


Microtubules, microfilaments, and intermediate filaments

What do ribosomes do for the cell?


Make proteins

Where can you find ribosomes in a cell?


On rough ER, and in the cytoplasm (also in the

nucleolus when they are being made

What are the two types of Endoplasmic reticulum and what

is the structural difference between the two types?


Smooth and Rough – rough have ribosomes attached

What does the ER do for the cell?

Rough – modifies proteins

Smooth – makes lipids and breaks down drugs and alcohol

What does the Golgi apparatus do for the cell?

Processes and packages proteins for export

What is the function of a lysosome?

To digest or break down food, old organelles, or other waste

What type of molecules are inside lysosomes? (These molecules are

what make the breaking down happen.)

Enzymes

What is the function of a central vacuole?

A place for plants to store water, minerals, and waste;

strengthens the cell and helps support the entire plant

What do chloroplasts do for the cell?

Convert energy from sunlight to chemical or food energy;

perform photosynthesis

Do animal cells have chloroplasts?


No

What is the function of the mitochondria?


To make energy (the power plant of the cell)

Animal, Plant, or Both:Cell Membrane


Both

Animal, Plant, or Both:Endoplasmic Reticulum


Both

Animal, Plant, or Both: Mitochondria

Both

Animal, Plant, or Both:Chloroplasts


Plant

Animal, Plant, or Both:Cell wall


Plant

Animal, Plant, or Both:Ribosomes


Both

Animal, Plant, or Both:Nucleus


Both

Animal, Plant, or Both:Golgi apparatus

Both

Types of CellsOrganelles and Functions

Transportation

EnergyPhotosynthesis

Respiration Cell Division

http://www.sciencegeek.net/Biology/review/U2Photosynthesis.htm

http://www.sciencegeek.net/Biology/review/U2Respiration.htm

http://www.sciencegeek.net/Biology/review/U3Review.htm

What is photosynthesis?

6 CO2 + 6H2O C6H12O6 + 6O2

Occurs in chloroplasts

Two parts: Light reaction Calvin cycle (dark reaction)

Where Does A Cell Get Energy?

Cellular respiration, glucose is broken down to a form the cell can use.

Energy is stored in an ATP molecule (adenosine triphosphate) .

What is Respiration?

The process of breaking down food molecules to release energy

Occurs in the mitochondriaTwo types:

Aerobic – requires oxygen Anaerobic – occurs without oxygen

C6H12O6 + 6O2 6CO2 + 6H2O + energy

Photosynthesis & Respiration

Inseparable cycles

How do cells divide?

The Cell Cycle

Interphase

Mitosis PMAT

Cytokinesis

Somatic Cells

How do cells divide?

ReproductiveCells

Asexual vs. Sexual Reproduction

ASEXUAL Diploid cells produced

by mitosis, binary fission

Identical copy produced

SEXUAL Gametes, haploid

cells, produced by meiosis

Gametes combine during fertilization to produce diploid cell

First diploid cell known as a zygote

Zygote grows into an embryo through mitosis

Infinite possibilities

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Today’s Goal:

• Reinforce Cellular Chemistry and Structure.

1.Place your Ecology Study Guide out for 10 pt. completion grade.

2.Cells Study guide due Friday.

Per 6, 7

Biology Homework for week of April 23 - 27Mon

Tues Create Review PPT

Weds Create Review PPT

Th Digital PPT PresentationsGenetics Study Guide Due

Fri Last Current Event work day

Biology Core 40 Test Tuesday May 8th

List in order the 6 steps of the scientific method.

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