metabolism

Photosynthetic reaction centre

Rating:

No votes yet

Tags:

Photosynthesis

Photosystem

Light-dependent reactions

P700

Chapter 10 Photosynthesis Overview: The Process That Feeds the Biosphere Photosynthesis is the process that converts solar energy into chemical energy Directly or indirectly, photosynthesis nourishes almost the entire living world Copyright ? 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Autotrophs sustain themselves without eating anything derived from other organisms Autotrophs are the producers of the biosphere, producing organic molecules from CO2 and other inorganic molecules Almost all plants are photoautotrophs, using the energy of sunlight to make organic molecules from H2O and CO2 Copyright ? 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Fig. 10-1

Enzymes

Subject:

Rating:

No votes yet

Tags:

INQUIRY LAB: ENZYMES Overall Research Question: What Makes the Bubble Gum Stretch? Research Question: What conditions would affect the rate of an enzymatic reaction? Null Hypothesis: The pH and temperature will have an effect on the rate of enzymatic reactions. #1 Alternative Hypothesis: The pH and temperature will have an effect on the rate of enzymatic reactions. #2 Alternative Hypothesis: The pH and temperature will not have an effect on the rate of enzymatic reactions. Control Group: The pH level of 7 (neutral) Independent Variable: pH- 3,5,7,9,11 (I will get data for pH 5 and 7) Temperature- 4,21, 30, 40, 60 (In degrees Celsius) (I will get data for 30 and 40 degrees Celsius) Independent Variable: The pH level Dependent Variable: The rate of the enzyme reactions pH

Algae Lab report

Subject:

Rating:

No votes yet

Tags:

Oxygen

Algae

Sea

Algae Photosynthesis Lab Report Research Question: How would light intensity affect photosynthesis on marine algae N. Oculata? Null Hypothesis: Light intensity will not affect the rate of photosynthesis in marine algae N. Oculata. #1 Alternative Hypothesis: If light intensity increases then the rate of photosynthesis will increase in marine algae N. Oculata. #2 Alternative Hypothesis: If light intensity increases then the rate of photosynthesis will decrease in marine algae N. Oculata. Independent Variable: Light Intensity Experimental Group: (100 watt bulb) (20 cm, 40 cm, 60 cm) Control Group: There is not control group, because there isn?t a part being tested with no light intensity Dependent Variable: The amount of dissolved oxygen Constants:

AP Bio Chp. 8

Subject:

Rating:

No votes yet

Tags:

Thermodynamic processes

Product

AP Biology Reading Guide Chapter 8: An Introduction to Metabolism Fred and Theresa Holtzclaw Copyright ? 2010 Pearson Education, Inc. - 7 - AP Biology Reading Guide Chapter 8: An Introduction to Metabolism Fred and Theresa Holtzclaw Copyright ? 2010 Pearson Education, Inc. - 1 - Name _________________________________________________ MOD____________ Date ________ Chapter 8: An Introduction to Metabolism Concept 8.1 An organism?s metabolism transforms matter and energy, subject to the laws of thermodynamics 1. Define metabolism. 2. There are two types of reactions in metabolic pathways: anabolic and catabolic. a. Which reactions release energy? b. Which reactions consume energy?

how enzymes function

Subject:

Rating:

No votes yet

Tags:

Enzymes

Non-competitive inhibition

Substrate

Product

Active site

Enzyme catalysis 1 ENZYME CATALYSIS By (Student?s Name) Course Instructor Institution City, State Date One of the primary tasks of a protein is to act as an enzyme. Fundamentally, Enzymes are organic catalysts that speed up the rate of virtually all biochemical reactions that occur in a cell. Ordinarily, cellular chemical reactions proceed so gradually that they would not occur under normal organism?s conditions of temperature and pressure (Enzyme Catalysis, 2015). Concisely, enzymatically catalyzed reactions involve the provision of an alternative route alongside stabilizing intermediates. In turn, this causes a reduction in the energy required to reach the highest energy transition state of the reaction as shown below (Enzyme Catalysis, 2015).

quiz 9

Subject:

Rating:

No votes yet

Tags:

energy

Polymer

Which of the following is (are) true of ligand-gated ion channels? a. They lead to changes in sodium and calcium concentrations in cells. b. They are important in the nervous system. c. They open or close in response to a chemical signal. d. Only A and B are true. e. A, B, and C are true. Which of the following can affect the rate of an enzymatic reaction a. pH b. temperature c. feedback inhibition d. A and B e. A, B and C A competitive inhibitor binds to an enzyme's a. active site b. allosteric binding site c. cooperative binding site d. A and B e. A, B and C Enzymes speed up chemical reactions by a. raising the energy of activation b. lowering the energy of activation c. lowering free energy d. increasing free energy e. B & D

quiz 10

Subject:

Rating:

No votes yet

Tags:

cellular respiration

metabolism

Nucleotides

Purinergic signalling

Purines

Glycolysis

Glucose 6-phosphate

Pyruvate kinase

Sucrose phosphorylase

How can one increase the rate of a chemical reaction? a. Increase the activation energy needed. b. Cool the reactants. c. Decrease the concentration of the reactants. d. Add the appropriate enzyme. e. Increase the entropy of the reactants. Which of the following statements is false? a. The amount of energy in the universe is constant. b. One form of energy can be converted to other forms of energy. c. Whenever energy conversions occur, some energy is lost as heat. d. There are differences in the quality of energy. e. Entropy decreases with time.

BIO CH 8

Subject:

Rating:

No votes yet

Tags:

Product

Endergonic reaction

ATP hydrolysis

energy

Campbell's Biology, 9e (Reece et al.) Chapter 8 An Introduction to Metabolism This chapter lays the foundations for the chapters on respiration and photosynthesis. Key concepts are as follows: The laws of thermodynamics govern energy transformations by living organisms, metabolic reactions couple energy-harvesting reactions to reactions that accomplish cellular work, and enzymes increase the rates of reaction. Understanding the properties of enzymes, how they work, and how their activities are regulated is necessary to achieve an understanding of metabolic pathways. Multiple-Choice Questions 1) Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? A) catalysis B) metabolism C) anabolism D) dehydration E) catabolism

BIO CH 4 TEST

Subject:

Rating:

No votes yet

Tags:

Peptide

Protein

Biomolecular structure

Hydrolysis

Nucleic acid sequence

Campbell's Biology, 9e (Reece et al.) Chapter 5 The Structure and Function of Large Biological Molecules In Chapter 5, the principles of chemistry covered in earlier chapters are applied to the understanding of biological polymers and lipid membranes. The emphasis is on properly linking monomers and their polymers, and on the structural and functional diversity of the different polymer types. Particular attention is given to protein structure, because this is central to understanding subsequent chapters on metabolism, molecular biology, and molecular medicine. Multiple-Choice Questions 1) Humans and mice differ because A) their cells have different small organic molecules. B) their cells make different types of large biological molecules.

ap_bio_chap_7_cell_respiration.ppt

Subject:

Substrate-level phosphorylation

Rating:

No votes yet

Tags:

cellular respiration

Glycolysis

Citric acid cycle

Chemiosmosis