Unit 3 review

A. Leaves with low surface area B. Stomata opening at night D. Photosynthetic stems

Which of the following adaptations would you most likely see in plants exposed to hot and dry environments like the desert (choose all that apply) A. Leaves with low surface area B. Stomata opening at night C. Heterotrophy D. Photosynthetic stems E. No cuticle

A. Carbon dioxide release from cellular respiration C. Water absorption D. Actively pumping H+ into the soil E. Increasing the acidity of the soil surrounding the plant

Which of the following aid plants in yo taking minerals from the soil. See figure for the process of cation exchange. (Choose all that are correct) A. Carbon dioxide release from cellular respiration B. Transport of sugar into the soil C. Water absorption D. Actively pumping H+ into the soil E. Increasing the acidity of the soil surrounding the plant

D. spores

A botanist discovers a new species of land plant with dominant sporophyte, which of the following, if present, would be least useful when assigning this plant to a taxon? A. seeds B. flowers C. endosperm D. spores E. roots

C. The bush would start to branch laterally, because axillary buds are freed from apical dominance

If you cut off the top of a growing shoot on a bush in front of your house, which of the following would be the most likely result A. The bush would start growing taller, because many new apical meristems would be created simultaneously via apical dominance B. The bush would wilt and eventually die C. The bush would start to branch laterally, because axillary buds are freed from apical dominance D. The bush would engage in a thickening of the remaining branches that have not been cut, because the axillary bud meristems will be free of apical dominance

B. grow highly branched roofs with root hairs

In order to maximize the surface area for water and minerals absorption, a vascular plant will need to A. grow a very tall sporophyte B. grow highly branched roofs with root hairs C. Produce leaves that are thin and needle like D. Produce large fruit

A. Gametophyte

In the figure, which plant structure produces haploid gametes by mitosis? A. Gametophyte B. Zygote C. Sporophyte D. Gamete E. Spore

D. Cuticle

On a field trip, a student in a marine biology class collects an organism that has differentiated organs, cell walls of cellulose, and chloroplasts on the beach. Based on this description, the organisms could be a brown alga, a red alga, a green alga, a charophyte, or a plant. The presence of which of the following features would definitively identify this organism as a land plant (embryophyte)? A. Sporopollenin B. flagellated sperm C. a gametophyte D. a cuticle

E. evolved in bogs with soil that is nutrient poor

Pitcher plants are plants that acquire inorganic minerals from digesting living organisms. Based on this pitcher plants ....? A. do not produce leaves B. evolved in deserts with high sun and low water C. evolved in temperate forests that are high in nutrients, but low in sunlight D. do not photosynthesize E. evolved in bogs with soil that is nutrient poor

C. It enabled plants to disperse their spores further D. It allowed the diploid adult life stage to grow taller E. It enabled plants to deliver nutrients to their many cells more rapidly

The evolution of vascular tissue was an important plant adaptation because ... (choose all that apply) A. In increased the distance in which flagellated sperm could travel B. Vascular tissue provides a protective layer preventing desiccation C. It enabled plants to disperse their spores further D. It allowed the diploid adult life stage to grow taller E. It enabled plants to deliver nutrients to their many cells more rapidly

C. reduce dehydration of the gametes

The functional role of jacketed reproductive organ is primarily to A. Allows gametes to engage in photosynthesis B. provide nutrients to spores C. reduce dehydration of the gametes D. provides structural support

A. The nail is 2 meters off the ground, because shoot primary growth only occurs at the tips of the stems

Twenty years ago you put a nail 2 meters off the ground in the trunk of a young oak tree that was 10 meters tall. Today, that oak is 40 meters tall. Which statement accurately reflects where the nail is located today? A. The nail is 2 meters off the ground, because shoot primary growth only occurs at the tips of the stems B. The nail is on the ground, because secondary growth caused the tree to grow outward until the nail was pushed out C. The nail is 40 meters off the ground, because primary growth at the base of the trunk pushed the region with the nail upwards D. The nail is 20 meters off the ground, because primary growth pushed the nail upwards 10 meters then secondary growth resulted in the remaining 20 meters of tree growth E. The nail is 10 meters off the ground, because Apical dominance promoted primary and secondary growth until the nail reached the height the tree was when the nail was originally placed in the trunk

B. Loss of water from transpiration D. The cohesion of water molecules E. Opening of the stomata

What drives the flow of water through the xylem? (Choose all relevant statements) A. Positive pressure B. Loss of water from transpiration C. The number of living cells in the xylem D. The cohesion of water molecules E. Opening of the stomata F. The force that soil exerts on water

B. Phloem sap would travel from the storage organ to the flowers

When a plant is unable to produce enough sugar via photosynthesis it may use the sugars from storage organs to provide energy to the flowers that need the sugar In this scenario, which of the following is true of phloem sap? A. Phloem sap would travel from storage organ to the roots B. Phloem sap would travel from the storage organ to the flowers C. Phloem sap would always travel from roots to leaves D. Phloem sap would travel from leaves to roots

C. Primary growth occurs in all plants, whereas secondary growth only occurs in woody plants

Which of the following is true of primary and secondary growth A. Lateral meristems result in primary growth, and apical meristems result in secondary growth B. Primary growth and secondary growth typically occur in the same region of a plant at the same time C. Primary growth occurs in all plants, whereas secondary growth only occurs in woody plants D. Primary and secondary growth provide a direct explanation for how plants balance ten trade off between has exchange and transpiration

C

Which of the following labels on this tree cross section is most likely to represent secondary growth during a rainy year? A B C D

I, II, and III only

Which of the following plant organs that you eat are also adaptations for storing carbohydrates I. Roots II. Stems III. Leaves IV. Flowers