Unit 3 Energy Flow Concepts 1 & 2
Authored by HEATHER STURDEVANT
Science, Biology
10th Grade
NGSS covered
Used 85+ times
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This quiz focuses on energy flow in biological systems, specifically covering chemical reaction energetics and ATP as the cellular energy currency. The content is appropriate for 10th grade biology students studying biochemistry and cellular processes. Students need to understand fundamental concepts including the difference between endothermic and exothermic reactions, how enzymes lower activation energy through substrate binding at active sites, factors affecting reaction rates, and the structure and function of ATP molecules. The material requires students to interpret energy diagrams, recognize the components of ATP and ADP, understand the ATP-ADP cycle, and connect these molecular processes to real cellular functions. Students must also identify how different macromolecules serve as energy sources and understand the role of cellular respiration in ATP production. Created by Heather Sturdevant, a Science teacher in the US who teaches grade 10. This comprehensive assessment supports instruction by providing multiple opportunities for students to demonstrate their understanding of energy concepts through varied question formats including multiple choice, diagram interpretation, and conceptual application. The quiz works effectively as a unit review before summative assessment, formative evaluation during instruction, or homework assignment to reinforce key vocabulary and processes. Teachers can use individual sections for targeted practice on specific subtopics like enzyme function or ATP structure, making it versatile for differentiated instruction. The content aligns with NGSS standards HS-LS1-7 (modeling cellular processes that release energy for life functions) and supports the crosscutting concept of energy and matter transfer in biological systems.
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37 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which phrase best describes an exothermic chemical reaction?
Does not absorb any energy.
Forms products with higher bond energy than reactants.
Is in a state of equilibrium.
Releases more energy than it absorbs.
Tags
NGSS.HS-PS1-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the products in this reaction:
6H2O and 6CO2
6CO2 and C6H12O6
6H2O, C6H12O6 and 6O2
C6H12O6 and 6O2
Tags
NGSS.HS-LS1-5
NGSS.HS-LS2-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical reactions that absorb more energy than they release are considered to be________________________.
exothermic
catalyzed
endothermic
anabolic
Tags
NGSS.HS-PS1-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The activation energy needed for a chemical reaction is decreased by the presence of a ________________________.
catalyst
reactant
product
substrate
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the enzyme substrate pictured above, what is happening during the second picture?
The catalyzed reaction is releasing a product.
The enzyme is breaking bonds in the substrate.
The enzyme is keeping the bonds the same in the substrate.
The substrate is beginning to bind to the enzyme.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the activation energy of a biochemical reaction is lowered, then
the reaction will happen faster.
the reaction will happen more slowly.
more energy will need to be absorbed.
the rate of the reaction will be unaffected.
Tags
NGSS.HS-PS1-4
NGSS.HS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The molecule that an enzyme binds to is known as its___________.
substrate
monomer
polymer
active site
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