Untitled Quiz

The process by which plants, algae, and some protists and prokaryotes convert light energy to chemical energy that is stored in sugars made from carbon dioxide and water.

An organism that makes its own food, often by photosynthesis, sustaining itself without eating other organisms or their molecules.

An organism that obtains energy from sunlight and carbon from CO2 by photosynthesis.

<p>An organism that obtains organic food molecules by eating other organisms or substances derived from them.</p> Signup and view all the answers

<p>Light, carbon dioxide, water, and minerals.</p> Signup and view all the answers

<p>A green pigment located within the chloroplasts of plants and algae that participates directly in the light reactions of photosynthesis.</p> Signup and view all the answers

<p>A microscopic pore surrounded by guard cells in the epidermis of a leaf.</p> Signup and view all the answers

<p>Leaf cells specialized for photosynthesis.</p> Signup and view all the answers

<p>The dense fluid within the chloroplast that surrounds the thylakoid membrane.</p> Signup and view all the answers

<p>A flattened membranous sac inside a chloroplast that contains chlorophyll.</p> Signup and view all the answers

<p>CO2 enters leaves through stomata, and H2O enters the roots and is carried to leaves through veins.</p> Signup and view all the answers

<p>Mostly from CO2 in the air.</p> Signup and view all the answers

<p>Photosynthesis.</p> Signup and view all the answers

<p>The first of two stages in photosynthesis; the steps in which solar energy is absorbed and converted to chemical energy, releasing oxygen.</p> Signup and view all the answers

<p>Nicotinamide adenine diphosphate, an electron acceptor that temporarily stores energized electrons produced during the light reactions.</p> Signup and view all the answers

<p>The second of two stages of photosynthesis; a cyclic series of chemical reactions that occur in the stroma of a chloroplast, using ATP and NADPH produced by the light reactions.</p> Signup and view all the answers

<p>The incorporation of carbon from atmospheric CO2 into an organic compound.</p> Signup and view all the answers

<p>ATP...NADPH</p> Signup and view all the answers

<p>The distance between crests of adjacent waves.</p> Signup and view all the answers

<p>Green, because it is mostly transmitted and reflected, not absorbed, by photosynthetic pigments.</p> Signup and view all the answers

<p>In chloroplasts, a light-excited electron is trapped by a primary electron acceptor instead of giving up its energy as heat and light.</p> Signup and view all the answers

<p>One photon excites an electron from photosystem II, and a second photon from photosystem I is used in the reduction of NADP+ to NADPH.</p> Signup and view all the answers

<p>The production of ATP by chemiosmosis during the light reactions of photosynthesis.</p> Signup and view all the answers

<p>The Calvin cycle occurs in the stroma, utilizing NADPH and ATP immediately.</p> Signup and view all the answers

<p>6...18...12</p> Signup and view all the answers

<p>A plant that uses the Calvin cycle for the initial steps that incorporate CO2 into organic material.</p> Signup and view all the answers

<p>A metabolic pathway in a plant cell that consumes oxygen and releases CO2, decreasing photosynthetic output.</p> Signup and view all the answers

<p>A plant in which the Calvin cycle is preceded by reactions that incorporate CO2 into a four-carbon compound.</p> Signup and view all the answers

<p>A plant that uses an adaptation for photosynthesis in arid conditions where CO2 is fixed at night.</p> Signup and view all the answers

<p>C4 and CAM plants can supply rubisco with CO2 even when stomata are closed.</p> Signup and view all the answers

<p>Photosynthesis is the ultimate source of food for almost all organisms and the oxygen needed for cellular respiration.</p> Signup and view all the answers

<p>The warming of Earth due to the atmospheric accumulation of CO2 and certain other gases.</p> Signup and view all the answers

<p>Increase in temperature and change in weather patterns due to increasing atmospheric CO2 levels.</p> Signup and view all the answers

<p>Laboratory growth chambers, field studies in areas with varying CO2 levels, and large-scale field studies with manipulated CO2 levels.</p> Signup and view all the answers

<p>High in the atmosphere, radiation from the sun converts O2 to ozone, which absorbs damaging UV radiation.</p> Signup and view all the answers