Morphology and Adaptations in Higher Plants

21. What are the main functions of the leaf veins in plants?

a) Support and transport of water and nutrients

b) Protection against pathogens

c) Storage of food

d) Absorption of water and minerals

22. Which of the following is a modification of leaves for water storage?

a) Spines

b) Tendril

c) Thorns

d) Succulent leaves

23. What is the purpose of the shoot system in higher plants?

a) Absorption of water and minerals

b) Storage of food

c) Photosynthesis

d) Support and transport

24. Which of the following is not a modification of leaf structure?

a) Tendril

b) Thorns

c) Stolon

d) Spines

25. What type of leaf margin is characterized by small, rounded teeth?

a) Entire

b) Lobed

c) Dentate

d) Serrated