Chapter 22 and 23 Biology Test

What generalization can be made based on the data? a. all plants have more stomata on the top side of their leaves than on the bottom side b. plants have fewer stomata on the top side of their leaves than the bottom side c. some plants have more stomata on the top side of their leaves than on the bottom side d. the number of stomata is the same from plant to plant

b. plants have fewer stomata on the top side of their leaves than the bottom side

The plant organ that supports the plant body and carries nutrients between different parts of the plant is the a. root b. stem c. leaf d. flower

b. stem

The pressure-flow hypothesis explains a. water movement in xylem b. water and nutrient movement in pholem c. water and nutrient movement in xylem d. water movement in pholem

b. water and nutrient movement in pholem

In which time interval was tree growth the greatest? a. 0 to 3 years b. 3 to 8 years c. 8 to 13 years d. 13 to 18 years

c. 8 to 13 years

The mature plant ovary is also referred to as the a. gymnosperm b. pollen grain c. fruit d. cotyledon

c. fruit

Tracheids and vessel elements make up a. pholem b. trichomes c. xylem d. meristem

c. xylem

Which of the following is a basic requirement of plants? a. sunlight b. carbon dioxide c. water d. all of the above

d. all of the above

Which tissues make up tree bark? a. pholem b. cork c. cork cambium d. all of the above

d. all of the above

The structures on a pine tree that contain the gametophytes are a. flowers b. sporangia c. sori d. cones

d. cones

Which of the following are found in roots? a. vascular tissue only b. ground tissue only c. dermal and vascular tissue only d. dermal, vascular, and ground tissue

d. dermal, vascular, and ground tissue

All of the following are characteristics of gymnosperms EXCEPT a. vascular tissue b. seeds c. cones d. flowers

d. flowers

The dominant stage of a moss is the a. sporophyte b. protonema c. archegonium d. gametophyte

d. gametophyte

Which of the following plants has a fibrous root system? a. dandelion b. beet c. radish d. grass

d. grass

Pumpkins, tomatoes, and beans all grow in direct sunlight. Assuming the plants receive plenty of water, stomata on the lower surface of their leaves a. are always closed b. are unusually clogged with dust c. are unlikely to close at night d. stay open during daylight hours

d. stay open during daylight hours

The rise of water in a tall plant depends on capillary action and a. osmosis b. evaporation c. nutrient transport d. transpirational pull

d. transpirational pull

Water is carried upward from the roots to every part of a vascular plant by a. cell walls b. pholem c. cuticle d. xylem

d. xylem

Plants cultivated for food are mostly a. gymnosperms b. woody plants c. angiosperms d. bryophytes

c. angiosperms

Which of the following cell types in NOT found in a plant's vascular tissue? a. tracheid b. vessel element c. guard cell d. companion cell

c. guard cell

Attraction between water molecules and other substances is a. adhesion b. capillary action c. transpiration d. cohesion

a. adhesion

The green structure in the diagram is called a. an embryo b. a seed coat c. a spore d. stored food

a. an embryo

All of the following conduct fluids in a plant EXCEPT a. heartwood b. sapwood c. pholem d. xylem

a. heartwood

Which type of plant tissue would be found ONLY in the circles areas of the plant shown? a. meristem tissue b. vascular tissue c. dermal tissue d. ground tissue

a. meristem tissue

Where in a plant does mitosis produce new cells? a. meristems b. chloroplasts c. mesophyll d. heartwood

a. meristems

As a growing root pushes through the soil, the delicate apical meristem is protected by a. root cap b. xylem c. bark d. root hairs

a. root cap

What stage in the alternation of generations is represented by fern fronds? a. sporophyte b. female gametophyte c. male gametophyte d. zygote

a. sporophyte

Recent changes in the classification of the plant kingdom are based on? a. studies comparing DNA sequences b. comparison of physical structures c. differences and similarities in life cycles d. whether or not a plant uses seeds to reproduce

a. studies comparing DNA sequences

What was the average growth in the height of the tree from sprouting to age 18? a. 0.2 meters per year b. 0.5 meters per year c. 1.0 meters per year d. 2.0 meters per year

b. 0.5 meters

Which of the following is NOT a characteristic of plants? a. eukaryotic cells b. cell walls containing chitin c. multicellular structure d. chlorophyl

b. cell walls containing chitin

Which of the following is a structure associated with gymnosperms? a. flower b. cone c. fruit d. enclosed seed

b. cone

The leaves of ferns are called a. sori b. fronds c. rhizomes d. spores

b. fronds

The first land plants likely evolved from? a. protists b. green algae c. mosses d. red algae

b. green algae

What is the independent variable? a. light intensity b. temperature c. oxygen bubbles d. photosynthesis rate

b. temperature

What can you conclude on the data? a. the higher the temperature, the more oxygen bubbles are released. b. there is an optimum temperature for photo-synthesis in this species of conifer c. all plants are most efficient at 30 degrees F d. the lower the temperature, the more oxygen bubbles are released

b. there is an optimum temperature for photo-synthesis in this species of conifer

The waterproof strip that is found in the cell walls of the endodermis is the a. vascular cambium b. vascular cylinder c. Casparian strip d. cortex

c. Casparian strip

Under unfavorable conditions, the green alga Chlamydomonas reproduces by forming a a. haploid zygote b. multicellular sporophyte c. diploid zygote d. multicellular gametophyte

c. diploid zygote

Stomata open and close in response to water pressure within a. root cells b. cell walls c. guard cells d. xylem

c. guard cells

Two gases that plants must exchange are? a. oxygen and nitrogen b. carbon dioxide and nitrogen c. oxygen and carbon dioxide d. carbon dioxide and carbon monoxide

c. oxygen and carbon dioxide

Most of the photosynthetic activity of a leaf takes place in the a. vascular bundle b. waxy cuticle and epidermis c. palisade and spongy mesophyll d. guard cells and stomata

c. palisade and spongy mesophyll

Which of the following is NOT a characteristic of dicots? a. branched veins b. taproot c. parallel veins d. two cotyledons

c. parallel veins

The male reproductive structures of seed plants are called a. sperm b. ovules c. pollen grains d. sporophytes

c. pollen grains

Pholem functions primarily in a. transport of water b. growth of the root c. transport of products of photosynthesis d. increasing stem width

c. transport of products of photosynthesis

Which of the following is a trace element absorbed by roots? a. nitrogen b. phosphorus c. zinc d. potassium

c. zinc

Which of the follow structures prevents the backflow of water into the root cortex? a. palisade mesophyll b. root cap c. cambium d. Casparian strip

d. Casparian strip

Which is NOT a factor in the movement of water through a plant's vascular tissues? a. transpiration b. capillary action c. osmotic pressure d. meristems

d. meristems

Where does most of the photosynthesis occur in a plant? a. stomata b. guard cells c. vascular cambium d. mesophyll

d. mesophyll

Which variable(s) should the students have held constant? a. plant type b. temperature c. light intensity d. plant type and light intensity

d. plant type and light intensity

Most water transport in stems takes place in a. heartwood b. pith c. pholem d. sapwood

d. sapwood