ENT 201 EXAM 1 COMPREHENSIVE EXAM 2026
FULL QUESTIONS AND CORRECT ANSWERS
ALREADY PASSED
◉ Is the exocuticle present everywhere?
Answer: no, its an extra part where more strength is needed.
◉ Epicuticle
Answer: The outermost layer of the insect cuticle designed to
prevent water loss. Waxes, cements, and proteins.
◉ What is resilin and where is it present?
Answer: A rubbery protein that stores energy and provides some
stretch in parts of the insect exoskeleton. Also stores energy in some
insect muscles.
◉ Can hairs, spines, spurs, warts, bumps, and other outgrowths or
ingrowths be part of the exoskeleton?
Answer: yes. so silly.
◉ Exoskeleton advantages
Answer: strong and protective, efficient for muscles
, ◉ exoskeleton disadvantages
Answer: necessitates molting (vulnerability), limit growth because it
needs muscles strong enough to move it, uses a lot of energy to make
it
◉ Chitin
Answer: glucosamine polymer
◉ How many total segments do insects have
Answer: 20
◉ How many/what body regions do insects have?
Answer: 3
head, thorax, abdomen
◉ Describe the insect head
Answer: 6 segments fused, the center for sensing and eating
◉ Insects eat with....
Answer: ancestral feet; their walking appendages evolved to form
mouthparts
FULL QUESTIONS AND CORRECT ANSWERS
ALREADY PASSED
◉ Is the exocuticle present everywhere?
Answer: no, its an extra part where more strength is needed.
◉ Epicuticle
Answer: The outermost layer of the insect cuticle designed to
prevent water loss. Waxes, cements, and proteins.
◉ What is resilin and where is it present?
Answer: A rubbery protein that stores energy and provides some
stretch in parts of the insect exoskeleton. Also stores energy in some
insect muscles.
◉ Can hairs, spines, spurs, warts, bumps, and other outgrowths or
ingrowths be part of the exoskeleton?
Answer: yes. so silly.
◉ Exoskeleton advantages
Answer: strong and protective, efficient for muscles
, ◉ exoskeleton disadvantages
Answer: necessitates molting (vulnerability), limit growth because it
needs muscles strong enough to move it, uses a lot of energy to make
it
◉ Chitin
Answer: glucosamine polymer
◉ How many total segments do insects have
Answer: 20
◉ How many/what body regions do insects have?
Answer: 3
head, thorax, abdomen
◉ Describe the insect head
Answer: 6 segments fused, the center for sensing and eating
◉ Insects eat with....
Answer: ancestral feet; their walking appendages evolved to form
mouthparts
