Multiple Choice Quiz

1		Stomata are:
			A)	an opening in the epidermal layer.
			B)	an opening surrounded by two guard cells.
			C)	an opening surrounded by two guard cells and the subsidiary cells.
			D)	two guard cells only.
			E)	two guard cells plus the subsidiary cells only.
2		Two subsidiary cells with common walls at right angles to the long axes of the guard cells are termed:
			A)	actinocytic.
			B)	anisocytic.
			C)	anomocytic.
			D)	diacytic.
			E)	paracytic.
3		Dendritic branches within the cuticle are composed of:
			A)	lipids.
			B)	polysaccharides.
			C)	protein.
			D)	suberin.
			E)	waxes.
4		A flattened, umbrella-like trichome with a short stalk is termed:
			A)	peltate.
			B)	radiating.
			C)	tufted.
			D)	stellate.
			E)	branched-unicellular.
5		Pavement cells lack:
			A)	chloroplasts.
			B)	cuticle.
			C)	epicuticular waxes.
			D)	mitochondria.
			E)	vacuoles.
6		Epidermis is formed from:
			A)	calyptrogen.
			B)	corpus.
			C)	rib meristem.
			D)	procambium.
			E)	tunica.
7		Which is never a function of trichomes?
			A)	Generate secretory products to cause sting.
			B)	Provide shade.
			C)	Bring about greater water loss through extended surface area of the epidermis.
			D)	Produce attracting/alluring oils.
			E)	Reduce herbivory.
8		Common development between guard cells and subsidiary cells is referred to as:
			A)	mesogenous.
			B)	perigenous.
			C)	mesoperigenous.
			D)	actinocytic.
			E)	lysigenous.
9		Multiple epidermal layers are:
			A)	formed by anticlinal cell division.
			B)	often found in tropical plants.
			C)	derived from the corpus.
			D)	convenient for promoting water loss.
			E)	without a surface cuticle.
10		What is not true regarding epicuticular waxes?
			A)	May be stretched during leaf expansion.
			B)	Moved through special channels in the cuticle.
			C)	Not found on inner guard cell walls.
			D)	Crystallized according to species.
			E)	In direct contact with the periclinal walls of the epidermis.