Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
chpt 6 & 7
photosynthesis & respiration
| Question | Answer |
|---|---|
| Why do almost all organisms depend on photosynthesis | autotrophs convert light energy into chemical energy, heterotrophs must get there food from eating photosynthetic organisms |
| What is the role of chlorophyll | absorbing light energy |
| define autotroph | organisms that get their energy directly from the sun instead of eating other organisms |
| define heterotroph | animals that must get energy from food instead directly from sunlight |
| what is the first stage of photosynthesis | light reaction |
| what are the products of the light reaction | ATP & NADPH |
| Thylakoids | system of flattened stacks found in chloroplast, where light absorption occurs |
| Calvin cycle | organic compounds are formed using CO2 and the energy stored in ATP AND NADPH |
| Where does the oxygen produced originate | H2O, water |
| what are the products of photosynthesis | glucose and oxygen |
| how does the light reactions and the Calvin cycle work together to create the continuous cycle of photosynthesis | the products of the light reaction (NADPH &ATP) are used in the Calvin cycle and the products of the Calvin cycle are used in the light reaction |
| Water is split in the light reaction yielding: | Electrons protons and oxygen |
| why is the calvin cycle referred to as the dark reaction | it does not require sunlight for the reaction to occur |
| what is the primary energy source for humans | autotrophs that get their energy from the sun |
| what is the reactant of of the Calvin cycle | carbon dioxide |
| Oxygen is produced at what point during photosynthesis | when water is split |
| what are the two stages of respiration | glycolysis and aerobic respiration |
| what is cellular respiration | process in which cells make ATP by breaking down organic compounds |
| Autotrophs, heterotrophs or both undergo cellular respiration | both |
| what happens in glycolysis | organic compounds are broken down into pyruvic acid and 2 ATP |
| is glycolysis aerobic or anaerobic | anaerobic |
| after glycolysis, if no oxygen is present cells can follow an alternate pathway known as | fermentation |
| What is the importance of fermentation since no ATP is produced | To regenerate NAD from NADH |
| the second stage of cellular respiration that requires oxygen | aerobic respiration |
| two stages of aerobic respiration | krebs cycle and electron transport chain |
| what occurs in the krebs cycle | Acetyl co A is further broken down, CO2, NADH is produced and 2ATP |
| what reactant enters the krebs cycle | acetyl co A |
| Where does most of the ATP production occur | Electron transport chain and chemiosmosis |
| How many ATP is produced during aerobic respiration | 36 |
| Where is water produced | electron transport chain |
| How is photosynthesis and cellular respiration related | the products of photosynthesis are the reactants for cellular respiration, and the products of cellular respiration are the reactants for photosynthesis |
| How does the light reaction and the Calvin cycle rely on each other | Light reactions changes energy from the sun into chemical energy that the Calvin cycle uses to produce high energy sugars from Carbon dioxide and water. |
| What is photosynthesis | process where plants capture sunlight and carbon dioxide to make organic compounds (carbohydrates) |
| What is chlorophyll and what is its purpose | pigment that absorbs light energy |
| What is the purpose of the light reaction | capture light energy and turn it into chemical energy |
Created by:
kathy.holtkamp
Popular Biology sets