Practice Questions
1) Anaerobic respiration in animals
produces
1. Glucose
2. Lactic acid
3. Water and carbon dioxide
4. Alcohol and carbon dioxide



2) Transmission of an impulse follows
what order through a neuron?
1. Dendrite, cell body, axon, terminal branches
2. Axon, cell body, dendrite, terminal branches
3. Terminal branches, axon, cell body, dendrite
4. Dendrite, axon, cell body, terminal branches



3) An earthworm has infused ganglia,
which serve as a primitive
1. Brain
2. Heart
3. Excretory organ
4. Lung



4) Lenticels are
1. Pores in the stem that aid in the release of excess gases
from a plant
2. Bristles found in earthworms, aiding in movement
3. Specialized filaments in fungi penetrating food
4. Bundles of nerve cells serving as a primitive brain



5) The light reactions of
photosynthesis occur in the
1. stroma of cholorplasts
2. respiratory pigments of chloroplasts
3. grana of chloroplasts
4. stomata of leaves



6) In the earthworm and the
grasshopper, the gizzard increases the surface area of food for
faster chemical digestion. In humans this function is
accomplished by the action of
1. the large intestine
2. enzymes
3. the esophagus
4. teeth



7) The roots, stems, and leaves of a
bean plant all contain
1. lenticels and a cuticle
2. xylem and phloem tissues
3. palisade cells and xylem tissues
4. guard cells and lenticels



8) The movement of gas into moist
intercellular spaces through stomates is an adaptation for
respiration in
1. protists
2. plants
3. grasshoppers
4. earthworms



9) The growth of a geranium plant
toward a light source depends most directly on the influence
of
1. hormones
2. nerve fibers
3. endocrine glands
4. roots



10) Which substance causes fatigue when
it accumulates in human muscles?
1. excess oxygen
2. carbon dioxide
3. lactic acid
4. adenosine triphosphate


