Ch.10 - PhotosynthesisSee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - 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

Photosynthesis

See all sections
Sections
Photosynthesis
Light Reactions
Calvin Cycle
The Need for CO2
Additional Practice
Photosynthesis Review

Concept #1: Autotrophs, Heterotrophs, and Chloroplasts

Concept #2: Chloroplast Anatomy, Light Reactions, and Calvin Cycle

Concept #3: Photons and the Electromagnetic Spectrum

Concept #4: Chlorophyll, Absorption Spectrum, and Action Spectrum

Additional Problems
The organelle that carries out photosynthesis in plants is the:  a. chloroplast. b. mitochondria. c. ribosome. d. chlorophyll. e. lysosome.
The energy source that powers the process of photosynthesis is: a. Waterb. Glucosec. Carbon dioxided. Sunlighte. Oxygen
The reactants for photosynthesis are: a. Water and carbon dioxideb. Organic compoundsc. Glucose and waterd. Glucose and carbon dioxidee. Glucose and sunlight
At least 90% of organisms on the earth are heterotrophs. Examples include all of the following except a. plants b. fungi c. most eubacteria d. animals e. most protists
Which organism's life depends on photosynthesis? a. Coralb. An oak treec. Humansd. A sea slug e. All are correct
The main product of photosynthesis is: a. glucose.b. oxygen.c. carbon dioxide.d. chlorophyll.e. sunlight.
The primary pigment needed for photosynthesis is: a. sunlight.b. oxygen.c. carbon dioxide.d. glucose.e. chlorophyll a.
Organisms that consume preexisting organic molecules are called: a. heterotrophs.b. autotrophs.c. plants.d. none are correct
Organisms that make their own organic compounds from inorganic substances are called: a. animals.b. heterotrophs.c. autotrophs.
A membrane studded with photosynthetic pigments in plant cells is the: a. granum.b. chloroplast.c. chlorophyll.d. thylakoids.e. stroma.
A gelatinous matrix inside the chloroplast containing ribosomes, DNA and enzymes is the: a. granum.b. chlorophyll.c. thylakoid.d. stroma.e. mitochondria.
Examples of accessory pigments for photosynthesis are: a. chlorophyll b and carotenoids.b. chlorophyll a and carotenoids.c. chlorophyll a and chlorophyll b.d. carotenoids, chlorophyll b and chlorophyll a.e. mitochondria.
Leaves of many plants "turn" colors in the fall because: a. the cooler weather causes the plant to produce more of the accessory photosynthetic pigments.b. the chlorophyll in the leaves degrades as winter approaches.c. the lessening of daylight as winter approaches causes the plant to produce more of the accessory photosynthetic pigments.d. plants produce more chlorophyll.e. all are correct
Tiny openings in the epidermis of the leaf that allow air to enter into the leaf are called: a. thylakoids.b. stroma.c. stomata.d. grana.e. thylakoid spaces.
Early cyanobacteria evolved a form of photosynthesis that permanently changed the Earth’s atmosphere by releasing which of the following gases? a. carbon dioxide b. nitrogen c. oxygen d. ozone e. carbon monoxide
What are the inputs and outputs of photosystems I and II? Where do they occur?
In a short paragraph, compare and contrast the electron transport chain of respiration with photosystems I and Il of photosynthesis. What are the biochemical similarities and differences?
Stomata are foundA. in leaves, roots, and stems of plants because they are necessary for intake of nutrients.B. on either the top or bottom leaf surface.C. in leaves of plants that live in dry places and in stems of plants that live in forests.D. only on the edges of tree leaves.
Briefly describe the adaptations of C4 and CAM plants that reduce water loss through stomata.
A) Can the Calvin Cycle run at night? B) List two (2) products of the light reaction that are necessary for Calvin cycle, or so called "dark-reaction". A) Explain the function of the enzyme Rubisco in the Calvin cycle. B) What problem does Rubisco present? C) Explain the two ways in which plants have solved that problem (CAM&C4)?
In CAM photosynthesis, where does the calvin cycle occur?
How is it possible to contrast chloroplasts and mitochondria?A. whether the organelle contains its own DNAB. whether the organelle converts solar energy into cellular energyC. whether the organelle is found in plant cellsD. whether the organelle has multiple membranesE. whether the organelle has a large internal surface area.
(a) How does the light independent reaction depend on the light-dependant reaction? (b) When and where does the light independent reaction and light-dependant reaction occur?
Compare and contrast the light reactions and the Calvin cycle of photosynthesis. Identify 2 similarities and 2 differences.
Describe how prokaryotes carryout photosynthesis and cellular respiration when they lack compartmentalized organelles such as chloroplasts and mitochondria. This question will help you understand the endosymbiosis theory.
What is the connection between photosynthesis and aerobic cellular respiration (Hint: look at the reactions that summarize each process)?
Which is true about photosynthesis?A. It occurs in stems in most plants but in leaves of some.B. Glucose is produced and oxygen is released.C. The most important product is energy in the form of ATP.D. Carbon dioxide is produced and oxygen is used.
Why is photosynthesis considered the most important chemical reaction on earth?
Plants are green in color because they:a. absorb red and blue light and reflect yellow and green light.b. absorb yellow and blue light and reflect green and red light.c. absorb yellow and green light and reflect red and blue light.d. absorb green and red light and reflect yellow and blue light.
What gas is produced as a waste product during the light dependent reactions? Where is the starch stored in a variegated Coleus leaf?