[LBBBION] 02 Leaf

Why are the blades of most leaves flat?

• To store water efficiently

• To capture more sunlight for photosynthesis

• To reduce transpiration

• To protect the leaf from predators

What is the counterpart of the petiole of the dicot leaf in monocots?

• Leaf sheath

• Stipule

• Tendril

• Node

What advantage(s) would compound leaves have over simple leaves?

• Enhanced photosynthesis

• Reduced light exposure

• Increased flexibility

• Better water retention

How does the petiole aid in the photosynthetic function of the leaves?

• By providing structural support

• By facilitating water transport

• By positioning the leaf for optimal sunlight

• By storing excess nutrients

Which leaf shape predominates in rainy regions? Why?

• Flat surfaces for increased sunlight absorption

• Smooth surfaces for camouflage

• Pointed tips for water retention

• Pointed tips for water runoff

Which leaf shape predominates in dry regions? Why?

• Waxy leaves for insulation

• Small, narrow leaves to reduce water loss

• Curled leaves for protection

• Large, broad leaves for water storage

Name five plants whose leaves have economic importance. Indicate what it is used for.

• Aloe Vera - Used for cosmetic products

• Sugarcane - Used for paper production

• Cotton Plant - Used for construction materials

• Rubber Tree - Used for medicinal purposes

What is the specialized function of the modified stem in a Pitcher plant?

• Nutrient storage

• Insect trapping and digestion

• Photosynthesis

• Water absorption

Which part of the leaf is responsible for gas exchange?

• Bulliform cells

• Stomates

• Phloem

• Xylem

What is the primary function of the stomatal pore?

• Gas exchange

• Photosynthesis

• Water absorption

• Nutrient transport