Photosynthesis Review
Vocabulary 2: During light reactions, ___ and ________ are produced.
ATP; NADPH
Multiple Choice: The correct sequence of events in the light reactions is...
Absorption of sunlight, electrons flow down the electron transport chain, NADPH is made, water is split.
Vocabulary 2: Most ______ make food using photosynthesis.
Autotrophs
Multiple Choice: How do bacteria that live deep below the ocean's surface make food?
By chemosynthesis
Vocabulary 1: organelle of photosynthesis.
Chloroplast
Vocabulary 2: ____________ are the organelles where photosynthesis take place.
Chloroplasts
Vocabulary 2: Stage 2 of photosynthesis is called the _______
Dark reactions
Vocabulary 1: series of electron- transport molecules, which pass electrons from molecule to molecule
Electron- Transport Train
Vocabulary 2: During the first stage of photosynthesis, two ________ are passed from molecule to molecule down the electron transport chain.
Electrons
Critical Reading: What is an electron transport chain? What is its role during these light reactions?
Electrons are passed molecule to molecule down a chain. Its role is to provide energy to be used to pump hydrogen atoms.
Critical Reading: How is ATP made during the light reaction?
Enzyme ATP synthase uses energy to add a phosphate group to ADP producing ATP.
True or False: Both stages of photosynthesis need sunlight to proceed.
False
True or False: During the light reactions, water molecules are made
False
True or False: In photosynthesis, the Calvin Cycle comes before the light reactions.
False
True or False: Like photosynthesis, chemosynthesis also relies on sunlight.
False
True or False: Two turns of the Calvin Cycle produce two molecules of glucose.
False
True or False:Atp and NADPH are the reactants of the light reactions.
False
True or False: All cells have Chloroplasts.
False, because it all depends on the little green chlorophyll molecules.
Vocabulary 1: main product of photosynthesis
Glucose
Vocabulary 2: During the Calvin Cycle, ______ is produced.
Glucose
Vocabulary 2: Chloroplasts contain ____ , which are made out of sac-like membranes, known as _________ membranes.
Grana; Thylakoid
Critical Reading: Why is water "split" during the light reactions?
Light energy is used to split the water molecule. Which produces H+ and O-ions. The oxygen is released from the plant into the air. ATP and NADPH are energy molecules. They will be used up during the dark reactions also will the H+ ions.
Vocabulary 2: Stage 1 of photosynthesis is called the ______
Light reaction
Vocabulary 1: stage of photosynthesis in which the energy from sunlight is stored in ATP and NADPH.
Light reactions
Critical Reading: In one sentence, describe what happens during the light reactions.
Light reactions need light to produce organic energy molecules, They are initiated by colored pigments, mainly green colored chlorophylls.
Vocabulary 1: energy carrying molecule.
NADPH
Vocabulary 2: During the first stage of photosynthesis, a molecule of _______ gas is released.
Oxygen
Multiple Choice: Most autotrophs make "food" through the process of...
Photosynthesis
Vocabulary 1: process in which sunlight is used to make food.
Photosynthesis
Vocabulary 1: groups of molecules where sunlight is absorbed during the light reactions.
Photosystem
Multiple Choice: The Calvin Cycle occurs...
The stroma surrounding the thylakoid membranes of the chloroplast.
Multiple Choice: Essentially, the oxygen we breathe is...
a waste product of photosynthesis.
Multiple Choice: By the end of the light reactions, energy from sunlight...
has been stored in chemical bonds of NADPH and ATP.
Vocabulary 1: stage of photosynthesis in which glucose is made.
Calvin Cycle
Vocabulary 1: process in which chemical energy, instead of sunlight is used to make "food"
Chemosynthesis
Vocabulary 2: Making food with chemical energy instead of sunlight is called __________
Chemosynthesis
Vocabulary 1: a green pigment
Chlorophyll
Vocabulary 2: The green pigment, _____, absorbs light to start photosynthesis.
Chlorophyll
Multiple Choice: The Calvin Cycle...
Starts with the molecule RuBP. Uses the energy in Atp and NADPH from the light reactions. Turn twice to produce one molecule of glucose
Critical Reading: In which step(s) of the light reactants is sunlight absorbed?
Step 1 and Step 2
Vocabulary 1: Space outside the thylakoid membrane within the chloroplast.
Stroma
Vocabulary 1: Soc-like membranes that make up the grana within the chloroplast.
Thylakoid membrane
True or False: A Chemiosmotic gradient causes hydrogen ions to flow across the Thylakoid membrane into the stroma.
True
True or False: During the Calvin Cycle, NADPH and ATP are used to make glucose.
True
True or False: Earth's oxygen comes from photosynthesis.
True
True or False: Electrons transport occurs in the Thylakoid membrane.
True
True or False: Light is absorbed by photosystems in the thylakoid membranes of chloroplasts.
True
True or False: Protons of sunlight can excite and energize electrons.
True
True or False: The Calvin Cycle takes place in the stroma surrounding the thylakoid membranes of the chloroplast.
True
True or False: Photosynthesis provides almost all of the energy used by living things on Earth.
True, because all living things use sunlight
Vocabulary 2: ____ turns of the Calvin Cycle produce one molecule of ______
Two; Glucose
Multiple Choice: ATP synthase is...
both an enzyme that makes ATP and a chanel protein and helps hydrogen ions across thylakoid membrane.
