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EBIO 1210 Exam 2: Questions and Answers on Energy, Metabolism, and Carbohydrates, Exams of Biology

University of Colorado Boulder (CU Boulder)Biology

A comprehensive set of questions and answers covering key concepts in ebio 1210, focusing on energy flow in ecosystems, atp synthesis and function, carbohydrate structures and metabolism, and cellular respiration and photosynthesis. it's a valuable resource for students preparing for exams, offering detailed explanations and reinforcing understanding of fundamental biological processes. The q&a format facilitates self-assessment and knowledge retention.

Typology: Exams

2024/2025

Available from 04/20/2025

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EBIO 1210 EXAM 2 QUESTIONS WITH CORRECT ANSWERS
Where does energy go in an ecosystem? -- Answer ✔✔ Heat, growth, reproduction,
etc. as energy flows up trophic levels
ATP -- Answer ✔✔ a nucleotide, (adenosine triphosphate)
Creation of ATP -- Answer ✔✔ A = adenine
A + Ribose = adenosine
adenosine mono-phosphate (AMP)
adenosine di-phosphate (ADP)
adenosine tri-phosphate (ATP)
How does ATP get energy? -- Answer ✔✔ ATP takes the energy released from the
breakdown of energy-rich food molecules and does cellular work
Phosphorylated -- Answer ✔✔ (=energized!) molecule
How do motor proteins do mechanical work? -- Answer ✔✔ High-energy P is
transferred to the protein
To stay alive, living cell performs 3 kinds of work that require energy: -- Answer ✔✔ 1.
Mechanical work
2. Transport work
3. Chemical work
Atp & storage -- Answer ✔✔ ATP is too unstable to serve as an actual
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Download EBIO 1210 Exam 2: Questions and Answers on Energy, Metabolism, and Carbohydrates and more Exams Biology in PDF only on Docsity!

EBIO 1210 EXAM 2 QUESTIONS WITH CORRECT ANSWERS

Where does energy go in an ecosystem? -- Answer ✔✔ Heat, growth, reproduction, etc. as energy flows up trophic levels ATP -- Answer ✔✔ a nucleotide, (adenosine triphosphate) Creation of ATP -- Answer ✔✔ A = adenine A + Ribose = adenosine adenosine mono-phosphate (AMP) adenosine di-phosphate (ADP) adenosine tri-phosphate (ATP) How does ATP get energy? -- Answer ✔✔ ATP takes the energy released from the breakdown of energy-rich food molecules and does cellular work Phosphorylated -- Answer ✔✔ (=energized!) molecule How do motor proteins do mechanical work? -- Answer ✔✔ High-energy P is transferred to the protein To stay alive, living cell performs 3 kinds of work that require energy: -- Answer ✔✔ 1. Mechanical work

  1. Transport work
  2. Chemical work Atp & storage -- Answer ✔✔ ATP is too unstable to serve as an actual

storage form of energy Hydrogen ion = -- Answer ✔✔ proton Adenosine Triphosphate -- Answer ✔✔ a.k.a ATP After ATP loses one phosphate as a result from hydrolysis it becomes what and results in what? -- Answer ✔✔ Adenosine diphosphate (ADP) This reaction releases energy that can be used by the cell Pi -- Answer ✔✔ Inorganic phosphate ion Carbohydrates molecular structure -- Answer ✔✔ Built from simple sugars i.e. H - C - OH (CH2O)n

  • they exist as rings in the cell hexose -- Answer ✔✔ sugars (with 6 C) like glucose, fructose, and galactose. Cellular respiration -- Answer ✔✔ O2 + Sugar -----> H2O + Energy + CO Sugars are "burned" for energy gain with oxygen in cellular respiration Photosynthesis -- Answer ✔✔ uses solar energy to make sugars: O2 + Sugar <----- H2O + Energy + CO H shuttle respiration -- Answer ✔✔ H is coming from CHOH to combine with O2 to make H2O H shuttle photosynthesis -- Answer ✔✔ H is coming from the H2O to create the H in the plant's CHOH (sugar) Sucrose -- Answer ✔✔ Glucose + Fructose we use it as table sugar

low entropy system -- Answer ✔✔ less random, more ordered high entropy system -- Answer ✔✔ more random, less ordered potential energy -- Answer ✔✔ stored in chemical bonds (C-H especially)