Medical Entomology TTU Exam 1 questions with
verified answers
Advantages of working with insects Ans✓✓✓ Short generation times
(aphids 4 days -- cotton 3-6 months)
Ethics
Smaller genomes
Ease of maintenance
Allomone Ans✓✓✓ Opposite of kairomone
Benefits emitter, harms receiver
Ametabola Ans✓✓✓ No metamorphosis
Egg > nymph > adult
Silverfish, springtails
Antennae (chemical receptors) Ans✓✓✓ Can detect numerous
molecules
Kairomone -- beneficial to receiver bad for emitter)
Antennae (mobile, paired, segmented) Ans✓✓✓ Scape: proximal,
basal, stalk -- usually bulkier
Pedicile: Johnston's organ -- detect motion in flagellum -- sound-
reception organ
,Flagellum: remainder of antennae
Anthropocentric (human related) Ans✓✓✓ Positive: human food, silk,
honey bees wax, royal jelly, pollen, dyes, bioprospecting, genetics,
forensic, pollination (80% commercial crops), aesthetics, employment
Anthropogenic changes Ans✓✓✓ Urbanization, ecotones, climate
Apterygota Ans✓✓✓ Without wings
Primitive condition
Diverged from other insects before wings evolved
Silverfish and springtails
Arthropod-borne diseases Ans✓✓✓ Viruses and bacteria (arboviruses,
arbobacteria)
Protozoans, nematodes, flatworms (parasites)
Carl Linneaus Ans✓✓✓ Father of taxonomy
Binomial nomenclature
Chewing mouthparts Ans✓✓✓ Labrum (1) - upper lip, covers
mandibles
Hypopharynx (1) - tongue like
, Mandibles (2) - cut and crush food
Maxillae (2) - hold/macerate food, sample before injection
Labium (1) - lower lip
Class Ans✓✓✓ Insecta
Characteristics:
6 legs (prothorax, mesothorax, metathorax)
3 distinct body segments
1 pair of antennae
1 pair of compound eyes
Wings (mesothorax, metathorax)
Counteractive arthropod chemical defenses Ans✓✓✓ Anticoagulants -
prevents blood clots
Analgesics - reduces host pain
Apyrase - inhibits platelet aggregation
Cuticular extensions Ans✓✓✓ Spine - multicellular, specialized
Seate - sensory hair, multicellular
Acenthae - unicellular
Microtrichia - few (many per cell)
verified answers
Advantages of working with insects Ans✓✓✓ Short generation times
(aphids 4 days -- cotton 3-6 months)
Ethics
Smaller genomes
Ease of maintenance
Allomone Ans✓✓✓ Opposite of kairomone
Benefits emitter, harms receiver
Ametabola Ans✓✓✓ No metamorphosis
Egg > nymph > adult
Silverfish, springtails
Antennae (chemical receptors) Ans✓✓✓ Can detect numerous
molecules
Kairomone -- beneficial to receiver bad for emitter)
Antennae (mobile, paired, segmented) Ans✓✓✓ Scape: proximal,
basal, stalk -- usually bulkier
Pedicile: Johnston's organ -- detect motion in flagellum -- sound-
reception organ
,Flagellum: remainder of antennae
Anthropocentric (human related) Ans✓✓✓ Positive: human food, silk,
honey bees wax, royal jelly, pollen, dyes, bioprospecting, genetics,
forensic, pollination (80% commercial crops), aesthetics, employment
Anthropogenic changes Ans✓✓✓ Urbanization, ecotones, climate
Apterygota Ans✓✓✓ Without wings
Primitive condition
Diverged from other insects before wings evolved
Silverfish and springtails
Arthropod-borne diseases Ans✓✓✓ Viruses and bacteria (arboviruses,
arbobacteria)
Protozoans, nematodes, flatworms (parasites)
Carl Linneaus Ans✓✓✓ Father of taxonomy
Binomial nomenclature
Chewing mouthparts Ans✓✓✓ Labrum (1) - upper lip, covers
mandibles
Hypopharynx (1) - tongue like
, Mandibles (2) - cut and crush food
Maxillae (2) - hold/macerate food, sample before injection
Labium (1) - lower lip
Class Ans✓✓✓ Insecta
Characteristics:
6 legs (prothorax, mesothorax, metathorax)
3 distinct body segments
1 pair of antennae
1 pair of compound eyes
Wings (mesothorax, metathorax)
Counteractive arthropod chemical defenses Ans✓✓✓ Anticoagulants -
prevents blood clots
Analgesics - reduces host pain
Apyrase - inhibits platelet aggregation
Cuticular extensions Ans✓✓✓ Spine - multicellular, specialized
Seate - sensory hair, multicellular
Acenthae - unicellular
Microtrichia - few (many per cell)
