1. How many factors are involved in transporting the goods shown from the manufacturer to a store?2. What might happen if one of the factors is temporarily unable to function?3. How might people who use the product be affected if one factor is not able to function? How might the manufacturer be affected?

3. If the transport system fails, consumers will be forced to live without the product or find a substitute. The manufacturer will be unable to sell products.

1.The truck crew, handcart, and boxes are factors necessary for transporting the products.2. The store’s inventory would be incomplete, and the store’s ability to meet consumer needs would be damaged.

Moves substances within the cell and moves substances into and out of the cell

Different types are Diffusion Osmosis Active transport Endocytosis Exocytosis

Movement of particles across the cell membrane without using energy

Three Modes of Passive Transport Diffusion Facilitated Diffusion Osmosis

Molecules are in constant movement. As they bounce off each other they begin to shoot across the empty space. They never stop moving, they are evenly distributed because they have spread to the empty space by bouncing off one another.

Balance

The net movement of particles from an area where there are many particles of the substance to an area where there are fewer particles of the substance.

The amount of substances in a particular area is called concentration. Therefore, substances diffuse from areas

of high concentration to low concentration.

The diffusion of water across a selectively permeable membrane. Regulating the movement of water is an important factor in maintaining homeostasis within the cell. Selectively permeable means that

only certain substances are able pass through the cell membrane.

Isotonic - no net movement, water enters and leaves the cell at the same rate.

Hypotonic - water moves into the cell, cell could burst. A solution that has a lower concentration of solute outside than inside the cell.

Hypertonic - water moves out of the cell, cell shrinks. A solution that has a higher concentration of solute outside than inside the cell.

Movement of particles across the cell membrane using energy

Active Transport Using Carrier Proteins

ENDOCYTOSIS

Process by which the cell surrounds and takes particles into the cell

EXOCYTOSIS

Secretion of material out of the plasma membrane

1. What is the purpose of this car battery?2. If the battery is drained of energy, can it ever again supplyenergy?3. What parts of your body might act like a battery? What do youthink provides energy on the cellular level?

1. The purpose of the battery is to store energy and release it when needed.2. The battery can be recharged so that it again stores and releases energy.

3. Answers will vary. Students might list fat cells, lungs, digestive organs, or blood among possible body parts that function like a battery. Students should understand that mitochondria perform a similar role on the cellular level.

Organic molecules are broken down to release energy for use by cell. What is an organic molecule?

Oxygen is used to break down organic molecules, resulting in the production of carbon dioxide and water.

WHERE DOES IT HAPPEN

Cytoplasm Mitochondria or

Chloroplast

WHY DOES IT HAPPEN?

Cellular respiration need to happen "to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.

Plants need oxygen as desperately as animals. Plant cells, like animal cells, carry out the process of cellular respiration that uses oxygen to convert the energy from foods into the chemical form used by the cell, ATP.

Cellular respiration occurs within a cell constantly, day and night, and if it ceases, the cell—and ultimately the organism— dies

Light energy from the Sun is converted to chemical energy for use by the cell.

Plants convert carbon dioxide and water into glucose and oxygen.

6CO2 + 12H2O + light → C6H12O6 + 6O2 + 6H2O

Takes place in the specialized organelle called the chloroplast, found in the mesophyll.

Consists on 2 Steps –Light Rxn & Dark Rxn

Animals and plants are dependent on each other. Without plants the food web would not exist.

Cytokinesis is the method by which a cell’s cytoplasm divides, creating a new cell.

Cells divide to form 2 daughter cells , the cells contain the same genetic material (DNA) as the original cell.

Reproduction of and entire unicellular organism.

The growth and repair of tissues in multicellular animals.

The formation of gametes (egg & sperm) for sexual reproduction,

Mutations Death Disorders,

diseases, or abnormalities