BIO 110 EXAM 4 (PSU) QUESTIONS AND ANSWERS | COMPLETE PENN STATE
BIOLOGY EXAM 4 STUDY GUIDE 2026/2027
Fungi can be
A. Predators
B. Decomposers
C. Saprobes
D. Symbionts
E. Absorptive heterotrophs
F. Chemoheterotrophs
G. Photoautotrophs - correct answer ✔✔A. Predators
B. Decomposers
C. Saprobes
E. Absorptive heterotrophs
F. Chemoheterotrophs
Which process occurs in f̣ungi and has the opposite e f̣fect
̣ on a cells chromosome number than does
meiosis I?
A. mitosis
B. plasmogamy
C. crossing-over
D. binary f̣ission
E. karyogamy - correct answer ✔✔Karyogamy
How do most f̣ungi f̣eed?
A. Hyphae secrete enzymes that break down organic rich molecules and then absorb the nutrient-rich
f̣luid.
B. Hyphae ingest organic materials that are then broken down by digestive enzymes inside the body o f̣
the f̣ungus.
C. The f̣ruiting bodies of̣ f̣ungi perf̣orm photosynthesis to supply the rest o f̣ the f̣ungus with f̣ood. -
correct answer ✔✔A. Hyphae secrete enzymes that break down organic rich molecules and then absorb
the nutrient-rich f̣luid.
A new disease arises in humans who live in the rain f̣orest. Which o f̣ the f̣ollowing might be a f̣irst
attempt at determining whether or not the disease is caused by a f̣ungus?
A. Treat the af̣fected
̣ people with a chemical that inter f̣eres with cellulose synthesis.
B. Treat af̣fected
̣ people with a chemical that prevents the apical complex f̣rom piercing a host
cell. C. Treat af̣fected
̣ people with a chemical that inter f̣eres with chitin synthesis.
D. Quarantine the area until the af̣fected
̣ people get well. - correct answer ✔✔C. Treat af̣fected
̣
people with a chemical that interf̣eres with chitin synthesis.
Fungi are more closely related to plants than to animals.
A. True
B. False - correct answer ✔✔False
BIOLOGY EXAM 4 STUDY GUIDE 2026/2027
Fungi can be
A. Predators
B. Decomposers
C. Saprobes
D. Symbionts
E. Absorptive heterotrophs
F. Chemoheterotrophs
G. Photoautotrophs - correct answer ✔✔A. Predators
B. Decomposers
C. Saprobes
E. Absorptive heterotrophs
F. Chemoheterotrophs
Which process occurs in f̣ungi and has the opposite e f̣fect
̣ on a cells chromosome number than does
meiosis I?
A. mitosis
B. plasmogamy
C. crossing-over
D. binary f̣ission
E. karyogamy - correct answer ✔✔Karyogamy
How do most f̣ungi f̣eed?
A. Hyphae secrete enzymes that break down organic rich molecules and then absorb the nutrient-rich
f̣luid.
B. Hyphae ingest organic materials that are then broken down by digestive enzymes inside the body o f̣
the f̣ungus.
C. The f̣ruiting bodies of̣ f̣ungi perf̣orm photosynthesis to supply the rest o f̣ the f̣ungus with f̣ood. -
correct answer ✔✔A. Hyphae secrete enzymes that break down organic rich molecules and then absorb
the nutrient-rich f̣luid.
A new disease arises in humans who live in the rain f̣orest. Which o f̣ the f̣ollowing might be a f̣irst
attempt at determining whether or not the disease is caused by a f̣ungus?
A. Treat the af̣fected
̣ people with a chemical that inter f̣eres with cellulose synthesis.
B. Treat af̣fected
̣ people with a chemical that prevents the apical complex f̣rom piercing a host
cell. C. Treat af̣fected
̣ people with a chemical that inter f̣eres with chitin synthesis.
D. Quarantine the area until the af̣fected
̣ people get well. - correct answer ✔✔C. Treat af̣fected
̣
people with a chemical that interf̣eres with chitin synthesis.
Fungi are more closely related to plants than to animals.
A. True
B. False - correct answer ✔✔False
