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Essential activities performed by organisms to sustain life.
Provides energy, growth, and development to organisms.
Autotrophs produce their own food; heterotrophs depend on others.
Process of converting light energy into chemical energy.
Facilitate gas exchange and regulate water loss.
Herbivores have longer intestines for digesting cellulose.
Increase surface area for efficient absorption of nutrients.
Breathing is a physical process; respiration is biochemical.
Glucose is fully broken down to release energy.
Energy release without oxygen, resulting in lactic acid or ethanol.
Transports oxygen from lungs to body tissues.
Changes chest cavity size to facilitate air intake and expulsion.
6CO2 + 6H2O → C6H12O6 + 6O2.
Ingestion of solid food, followed by digestion and absorption.
Creates acidic medium for enzyme activation and germ killing.
Diaphragm relaxes, reducing chest cavity volume to push air out.
Gas exchange between air and blood.
Aerobic uses oxygen; anaerobic does not.
Controls the removal of undigested waste from the body.
It is reduced to carbohydrates.
Essential activities that sustain life.
Provides energy and supports growth.
Organisms make their own food using sunlight.
Depends on other organisms for food.
Conversion of light energy into chemical energy.
Facilitate gas exchange and transpiration.
Glucose is partially broken down without oxygen.
Requires oxygen and produces more energy.
Increase surface area for nutrient absorption.
Changes chest cavity size to facilitate breathing.
Transports oxygen and carbon dioxide in the body.
Removal of waste products from the body.
Activates pepsin and kills harmful bacteria.
Broken down into amino acids.
Reduces carbon dioxide intake, affecting photosynthesis.
Lactic acid, which can cause fatigue.
Breathing is a physical process; respiration is biochemical.
Absorbs excess water and removes waste.
Completely broken down into carbon dioxide and water.
Contains enzymes that begin starch breakdown.
Herbivores have longer intestines for cellulose digestion.