Practice OC.11 Vocabulary

Match the following

• nutrient

• the process of breaking down organic material into reusable nutrientsT

• carbohydrate

• Sugar, starch, or cellulose that can be broken down to release energy.

• detritus

• Left over nutrient-rich material from organisms that have died and are undergoing decomposition.

• decomposition

• A chemical substance that an organism needs to sustain life.

Match the following

• chemosynthesis

• The process of using the sun's radiation (energy) to produce carbohydrates.

• primary productivity

• The process of using energy stored in chemical bonds to produce carbohydrates.

• photosynthesis

• The rate at which energy is stored as carbohydrates by autotrophs.

• respiration

• The process of releasing stored energy from carbohydrates to perform the functions of life.

Match the following

• autotroph

• An organism that breaks down other organic material into reusable nutrients.

• heterotroph

• a.k.a. primary producer; an organism that produces carbohydrates from an outside energy source through photosynthesis or chemosynthesis.

• decomposer

• a.k.a. consumer; an organism that obtains energy and nutrients by feeding on other organisms.

Match the following

• zooplankton

• Drifting photosynthetic organisms.

• plankton

• Heterotrophic plankton.

• phytoplankton

• Organisms that drift or swim weakly, unable to move consistently against waves or currents.

Match the following

• decomposition

• 
• carbohydrate

• 
• nutrient

• 
• detritus

• 

Match the following

• chemosynthesis

• 
• photosynthesis

• 
• primary productivity

• 
• respiration

• 

Match the following

• heterotroph

• 
• decomposer

• 
• autotroph

• 

Match the following

• phytoplankton

• 
• zooplankton

• 
• plankton

•