Energy Flow Practice Test

In the food web to the right, the insectivorous birds would be classified as

• carnivores

• decomposers

• herbivores

• omnivores

Organisms that use energy from the sun to make their own food are called

• carnivores

• consumers

• omnivores

• producers

What will MOST LIKELY happen if a new producer is introduced into a food web?

• The omnivores will decrease.

• The herbivores will increase.

• The carnivores will decrease.

• The decomposers will decrease.

In food chains, the flow of energy is ALWAYS _________.

• one-way

• reversible

• two-way

• uncontrolled

The purpose of photosynthesis is to

• make ATP for humans

• build proteins in plants

• store solar energy as sugar

• A and C

NADPH and ATP are produced during what part of photosynthesis?

• light-dependent

• light-independent

• Calvin Cycle

• Mitochondria

Photosynthesis occurs in two stages: light-dependent reactions and light-independent reactions. During the light-dependent reactions,

• water molecules are split by sunlight.

• carbon dioxide is absorbed.

• reactions occur in the stroma.

• a molecule of sugar, glucose, is made.

Why is the presence of chlorophyll in plants important?

• It assembles the sugar

• It creates ATP to power the process

• It captures water to be used in the process

• It absorbs the solar energy needed to create the sugar

Which process can produce the most energy for a cell?

• Lactic acid fermentation

• Aerobic respiration

• Anaerobic respiration

• Alcohol fermentation

At the beginning of cellular respiration ____________________________ occurs, where glucose is broken down into pyruvate and ATP. This step does not require any oxygen.

• glycolysis

• the Krebs/citric acid cycle

• electron transport chain

• alcohol fermentation