Week 9 Exb 110 2010 color

Week 9 Exb 110 2010 color - Major factors involved in...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Major factors involved in controlling metabolism EXB110
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EXERCISE GENOME-GENES DIET ENZYMES BODY COMPOSITION HORMONES GENDER DRUGS PSYCHOLOGICAL STATE WEATHER AGE BODY SIZE
Background image of page 2
Metabolic Reactions and Energy Transformations Metabolism is the sum of all the chemical reactions that occur in a cell. the process of metabolism is really a balancing act involving two kinds of activities that go on at the same time — the building up of body tissues and energy stores and the breaking down of body tissues and energy stores to generate more fuel for body functions:
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Catabolism of Proteins, Carbohydrates, and Fats
Background image of page 4
Metabolic Reactions and Energy Transformations Energy released from exergonic reactions is used to drive endergonic reactions inside cells. •A T P is the energy carrier between exergonic and endergonic reactions.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
ATP: Energy for Cells •A T P ( adenosine triphosphate ) is the energy currency of cells. ATP is constantly regenerated from ADP ( adenosine diphosphate ) after energy is expended by the cell. Use of ATP by the cell has advantages: 1) It can be used in many types of reactions. 2) When ATP ADP + P, energy released is sufficient for cellular needs and little energy is wasted.
Background image of page 6
ATP is coupled to endergonic reactions in such a way that it minimizes energy loss. ATP is a nucleotide made of adenine and ribose and three phosphate groups. ATP is called a “high- energy” compound because a phosphate group is easily removed.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Function of ATP Cells make use of ATP for: Chemical work – ATP supplies energy to synthesize macromolecules, and therefore the organism Transport work – ATP supplies energy needed to pump substances across the plasma membrane Mechanical work – ATP supplies energy for cellular movements
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Control of Metabolic Reactions Enzymes control rates of metabolic reactions lower activation energy needed to start reactions globular proteins with specific shapes not consumed in chemical reactions substrate specific shape of active site determines substrate
Background image of page 10
Enzyme-Substrate Complexes Most reactions in a cell requires a specific enzyme. Enzymes are named for their substrates: • Substrate Enzyme Lipid Lipase Urea Urease Maltose Maltase Ribonucleic acid Ribonuclease
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Energy Systems and Exercise Anaerobic / Aerobic Energy is always being produced – Exercise intensity / duration determines the ratio
Background image of page 12
The overall equation for cellular respiration is opposite that of photosynthesis: C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + Energy In this reaction, glucose is oxidized and oxygen is reduced to become water. The complete oxidation of a mol of
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/02/2010 for the course EXB Exb 110 taught by Professor Aldringomes during the Spring '10 term at UC Davis.

Page1 / 88

Week 9 Exb 110 2010 color - Major factors involved in...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online