Unit 13 Final Exam Review Plants

Which of the following correctly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis? 

• The cellular-respiration diagram would show electromagnetic waves as the final product
• The cellular-respiration diagram would show water as the main source of chemical energy. 
• The cellular-respiration diagram would show energy stored in large protein molecules. 
• The cellular-respiration diagram would show glucose as the main source of energy. 

Plant hormones serve as chemical messengers between cells and tissues. Auxin is a plant hormone that causes the cells on the shady side of a plant shoot to elongate. The response enabled by auxin is known as — 

• geotropism
• photosynthesis
• phototropism
• transpiration

“skin” of the leaf 

• Q
• R
• U
• W

photosynthesis occurs in this layer

• Q
• T
• U
• W

waxy layer to prevent water loss

• Q
• R
• T
• W

control the opening and closing of passage into leaf

• R
• S
• T
• U

contains tubes for transport of materials

• R
• T
• U
• W

opening for gas exchange

• S
• T
• U
• W

The main adaptation that plants had to develop to live on land was the ability to --

• disperse seeds
• produce fruit
• photosynthesize
• conserve water

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