Plant STAAR Practice

Leaves are part of a plant's shoot system. The xylem tissue in leaves transports-

• The bacteria needed for nitrogen fixation in root nodules

• The wax required to coat the surface of actively growing tissue

• The water and minerals that are absorbed by the roots

• The oxygen that regulates the rate of carbohydrate production

• Skeletal and respiratory

• Cardiovascular and skeletal

• Integumentary and respriatory

• Cardiovascular and integumentary

A science class is planning a field trio to a local farm that has a large pond. Which of the following lists the order of biological organization from smallest to largest that the students can expect to find at the pond?

• Organisms, community, populations, ecosystem

• Organism, population, community, ecosystem

• Population, organism, community, ecosystem

• Population, organism, ecosystem, community

Fruit grown in hot climates are usually less sweet than those grown in cooler climates in cooler temperatures. The high temperatures increase the rate of respiration in the plants, thus reducing the sugar content in some fruits.

Why does increased respiration in the leaves and stems reduce the sugar content in the fruits and plants?

• Chloroplasts move from the fruits to the leaves and stems to provide energy for respiration

• The flow of nutrients shifts from the phloem to the xylem, moving nutrients away from the fruits

• Sugars are moved from the fruits to the roots for storage

• Sugars produced in the leaves are used as an energy source instead of being stored in fruits

Which sequence represents the levels of organization foun in a multicellular organism, from smallest to largest?

• Cell -> tissue -> organ- -> organ system

• Organ system -> organ -> tissue -> cell

• Tissue -> organ -> organ system -> cell

• Cell -> organ system -> organ -> tissue

• Copper is produced in the roots when copper containing compounds are hydrolyzed

• copper is absorbed by the roots is transported to reproductive tissues by the shoot system

• The shoot system stores copper for later use by the roots and the reproductive structures

• The shoot system transports copper to the roots after it is taken in through stomate in the leaves

• the roots absorbs water and minerals and move them up to the stem, while the stem moves food produced in the leaves down to the roots in tiny tubes

• The roots anchor the plant in the soil, and the stem holds the leaves up

• the roots absorb their own water and minerals, while the stems absorbs its water and minerals through the leaves

• The roots lose water vapor in the soil, and the stem loses water vapor through the leaves

• Cellular Reproduction

• Photosynthesis

• Water Intake

• Carbohydrate storage

• F

• G

• H

• J

• F

• G

• H

• J