Chapter 5 Review Assignment

Every living organism relies on the energy originally captured by ________. Whether directly (as plants) or indirectly (as consumers of plants or other animals), all food and energy originate from this essential process.

• photosynthesis

• respiration

• fermentation

• transpiration

What is the process through which plants, algae, and certain bacteria convert light energy into chemical energy stored in glucose?

• Respiration

• Photosynthesis

• Fermentation

• Digestion

The light-dependent reactions of photosynthesis occur in the ________ membranes of chloroplasts and require light.

• thylakoid

• mitochondrial

• nuclear

• plasma

Which of the following is produced during the light-dependent reactions of photosynthesis?

• Glucose

• ATP and NADPH

• Carbon dioxide

• Starch

The Calvin Cycle is also called the ________ or dark reactions and occurs in the stroma of chloroplasts.

• light-independent reactions

• light-dependent reactions

• glycolysis reactions

• photorespiration reactions

What are autotrophs?

• Autotrophs are organisms that can produce their own food using energy from sunlight or inorganic substances.

• Autotrophs are organisms that depend on other organisms for food.

• Autotrophs are animals that eat only plants.

• Autotrophs are organisms that can only survive in the absence of sunlight.

What are heterotrophs?

• Heterotrophs are organisms that cannot perform photosynthesis and must consume other organisms to obtain energy and carbon.

• Heterotrophs are organisms that produce their own food through photosynthesis.

• Heterotrophs are organisms that obtain energy directly from sunlight.

• Heterotrophs are organisms that can survive without consuming any other organisms.

Which of the following are photoautotrophs?

• Plants

• Algae

• Cyanobacteria

• All of the above

Oceanic algae are especially significant because they contribute greatly to global food and oxygen production.

• True

• False

Refer to Figure 5.2. Which of the following images shows cyanobacteria?

• Plants

• Algae

• Certain bacteria, called cyanobacteria