Week 6 Review: Photosynthesis

Which describes active transport?

• Moving a molecule down its concentration gradient using a protein

• Moving a molecule against its concentration gradient using a protein

• Moving a molecule against its concentration gradient without a protein

• Moving a molecule down its concentration gradient without a protein

Which types of cellular work require energy?

• Chemical work

• Mechanical work

• Active transport work

• Passive transport work

Why is the mitochondria the 'powerhouse' of the cell?

• It creates its own energy

• It releases energy from food

• It takes in energy

• it transfers energy from one organelle to another

Enzymes allow _______ to occur, which is how it lowers the energy needed for a reaction to occur

In photosynthesis, carbon dioxide (CO2) is converted into..

• Glucose

• Water

• Sunlight

• Oxygen

Where do fossil fuels come from?

• Photosynthetic organisms from hundreds of millions of years ago

• Modern photosynthetic organisms

• Directly from the sun

__________ energy is the energy of motion

• kinetic

• potential

• formal

• heat

Potential and kinetic energy work.. (think of the archery video from class/in BB!)

The second law of thermodynamics states that every energy transfer increases the disorder of the universe. Because energy transfers are inefficient, some of that energy is lost in the form of...

Potential energy is based on

• position

• rotation

• mass

• movement