Topic 5 Digestive System: Digestion in Plants and Fungi

Question 1

• Have no digestive system, but intracellular processes similar to animals do occur

Answer 1

Plants

Question 2

• Store primarily starch in seeds, stems, and roots; when nutrients are required, polymers are broken down (into glucose, fatty acid, glycerol, and amino acids) by enzymatic hydrolysis

Answer 2

1. Intracellular Digestion

Question 3

• Several plants must obtain nutrients from the environment

Answer 3

2. Extracellular Digestion

Question 4

• Secrete enzymes into bread, producing simple digestive products which are then absorbed by diffusion into rhizoid

Answer 4

a. Fungi (rhizoids of bread molds)

Question 5

• Enzymes digest trapped fly (serves as nitrate source) still autotrophic though

Answer 5

b. Venus flytrap