Ch.9 - PhotosynthesisWorksheetSee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch 4. - Biomolecules
Ch. 5 - Cell Components
Ch.6 - The Membrane
Ch.7 - Energy and Metabolism
Ch.8 - Respiration
Ch.9 - Photosynthesis
Ch.10 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology
Introduction to Photosynthesis
Leaf & Chloroplast Anatomy
Electromagnetic Spectrum
Pigments of Photosynthesis
Stages of Photosynthesis
Light Reactions of Photosynthesis
Calvin Cycle
C3, C4 & CAM Plants
Review of Photosynthesis

Concept #1: Light Reactions of Photosynthesis

Example #1: The light reactions are powered by ________ energy. In normal photosynthesis the products of the light reactions are used to power __________.

Practice: Describe the primary function of the light reactions of photosynthesis.

a) Production of NADPH used in cellular respiration.

b) Use of ATP to make glucose.

c) Conversion of chemical energy to light energy.

d) Production of ATP and NADPH.

Concept #2: Steps of the Light Reactions

Practice: Where do the electrons that are excited in photosystem II come from?

a) CO2.

b) O2.   

c) Glucose.   

d) Photosystem I.   

e) Water.

Practice: During the light reactions, photosystem I functions to_________, and photosystem II functions to __________.

a) Reduce CO2; oxidize NADPH.

b) Synthesize ATP; Produce O2.

c) Produce O2; oxidize NADPH.

d) Reduce NADP+; oxidize H2O.

Concept #3: How to Memorize the Light Reactions of Photosynthesis

Practice: What is the correct order of steps of the light reactions of Photosynthesis?

a) photosystem I, ETC, photosystem II, NADP+ reduction, chemiosmosis.

b) photosystem I, photosystem II, ETC, NADP+ reduction, chemiosmosis.

c) photosystem II, ETC, photosystem I, NADP+ reduction, chemiosmosis.

d) photosystem II, photosystem I, ETC, NADP+ reduction, chemiosmosis.