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Unit 5 Preparation (237.0K)

1			Energy used by cells is temporarily stored in and released from
			A)	ATP molecules.
			B)	the cytoskeleton.
			C)	ribosomes.
			D)	lysosomes.
2			Maintaining stable conditions in the internal environment of a cell is called
			A)	homeostasis.
			B)	homozygous.
			C)	hypotonic.
			D)	homologous.
3			A group of specialized cells with the same structure and function form
			A)	organs.
			B)	tissues.
			C)	membranes.
			D)	stem cells.
4			Your body temperature is controlled by
			A)	your reproductive system.
			B)	your respiratory system.
			C)	lipids.
			D)	negative feedback.
5			All body systems contain
			A)	skin.
			B)	nerves.
			C)	organs.
			D)	muscle cells.
6			The circulatory system exchanges matter with cells via
			A)	the arteries.
			B)	the veins.
			C)	the lymph.
			D)	the capillaries.
7			The body's specific immune system is a function of
			A)	lymphocytes.
			B)	plasma.
			C)	platelets.
			D)	lymph nodes.
8			The three components of a homeostatic mechanism in the body are
			A)	a stimulus, a sensor, and a response.
			B)	a sensor, an effector, and a control centre.
			C)	too much, too little, homeostasis.
			D)	tissues, organs, organ systems.
9			When performing a dissection, cuts made with a scalpel should
			A)	enable you to view all specimen structures at all times.
			B)	follow a dorsal-to-ventral direction.
			C)	always be made away from the body.
			D)	always be made toward the body.
10			Which of these statements about muscle tissue is accurate?
			A)	Muscles can only push; they cannot pull.
			B)	Muscles can only lengthen; they cannot shorten.
			C)	Muscles can only pull; they cannot push.
			D)	Muscles can only pull; they cannot contract.