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Cuticle: Quiz


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Question 1: The cuticle both prevents plant surfaces from becoming ________ and helps to prevent plants from drying out.
WettingWaterContact angleSurface tension

Question 2: The main structural components of the nematode cuticle are proteins, highly cross-linked ________ and specialised insoluble proteins known as "cuticlins", together with glycoproteins and lipids.
KeratinCollagen, type I, alpha 1CollagenLysyl hydroxylase

Question 3: In ________, cuticle (also called eponychium) refers to several structures.
Organ (anatomy)Human anatomyPenisRectum

Question 4: The main structural component of arthropod cuticle is a ________, chitin, composed of N-acetylglucosamine units, together with proteins and lipids.

Question 5: Xerophytic plants such as ________ have very thick cuticles to help them survive in their arid climates.
CactusBatOrchidaceaeFlowering plant

Question 6: The main structural components of plant cuticles are the unique ________ cutin and/or cutan, impregnated with wax.
Polymer chemistryNylonPolymerPlastic

Question 7: In ________, plant cuticles are protective, hydrophobic, waxy coverings produced by the epidermal cells of leaves, young shoots and all other aerial plant organs.
Flowering plantEcologyBiologyBotany

Question 8: In zoology, the invertebrate cuticle or cuticula is a multi-layered structure outside the epidermis of many invertebrates, notably roundworms[1] and ________, in which it forms an exoskeleton (see arthropod exoskeleton).

Question 9: Plants that live in range of sea's spray also tend to have thicker cuticles, to protect them from the toxic effects of ________.
Sodium chlorideSaltWaterHypertension

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