WorksheetsPhotosynthesis: Section 4.5
Total questions: 10
Worksheet time: 3hrs 30mins
What is the source of energy for living organisms?
Chemical Energy
Nuclear Energy
Sun (Light Energy)
Heat Energy
What occurs in the process of photosynthesis?
Plants convert light energy from the sun into chemical energy that is stored in complex sugar molecules (food)
Food is chemically bonded with oxygen then to carbon dioxide and water. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the cell
an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA
any situations in which more individuals are born than can survive (the struggle for existence)
What organisms are capable of the process of photosynthesis?
mushrooms, yeasts, molds, truffles
bunnies, deer, mice
llamas, horses, goats
green plants, algae, cyanobacteria
The first step of photosynthesis is the absorption of ________?
gravitational energy
chemical energy
atomic energy
light energy
________, a green pigment that gives plants their color, absorbs light energy.
stoma
chlorophyll
lipid
granum
chlorplast
What are the reactants for photosynthesis?
peroxide (H2O2), baking soda (NaHCO3)
light energy (E), carbon dioxide (CO2), water (H2O)
Caffeine (C8H10N4O2), Nitrogen (N2O), Sugar (CnH2nOn)
calcium oxide (CaO), Cholesterol (C27H46O), water (H2O)
What are the products of photosynthesis?
water (H2O), carbon dioxide (CO2)
carbonic acid (H2CO3), oxygen gas (O2)
sugar molecules (C6H12O6), oxygen gas (O2)
oxygen (O), hydrogen (H2)
What's the overall equation for photosynthesis using words
Hydrogen + Oxygen → Water
glucose + oxygen → carbon dioxide + water + energy
methane + oxygen → carbon dioxide + water
Carbon Dioxide + Water + Energy → Sugar Molecule + Oxygen
Write the overall equation for photosynthesis using chemical formulas
C6H12O6 + 6O2 → 6CO2 + 6H2O
CO2+H2O+E → C6H12O6+O2
NaHCO3 + HC2H302 = NaC2H302 + H2O + CO2
4Fe + 3O2 → 2Fe2O3
Is photosynthesis an example of a synthesis reaction or a decomposition reaction?
Synthesis Reaction - It is the building up of a complex molecule from smaller, simpler compounds
Decomposition Reaction - it breaks down hydrogen peroxide to water and oxygen transfers to chemical energy
Synthesis Reaction - It is the building of a simple molecule from larger, complex compounds
Decomposition Reaction - it breaks down the chloroplast into light energy transfers to heat
