1521. Plants produce their own organic nutrients through photosynthesis which of the following terms describes this characteristics ?
A. Gravitotropism
B. Alternation of generations
C. Autotrophism *
D. Herbivory
1522. What tissue comprises the middle layers of the leaf ?
A. Mesophyll *
B. Epidermis
C. Stomata
D. Phloem
1523. Which term have scientists given to the hypothetical flowering hormone ?
A. Cytokine
B. Abscise acid
C. Florigen *
D. Mutagen
1524. Which of the following is found in phloem tissue ?
A. Vessel elements
B. Stomata
C. Companion cells *
D. Tracheid’s
1525. What is the force exerted on the cell wall by the cell’s contents ?
A. Water potential
B. Osmotic potential
C. TATC
D. Turgor pressure *
1526. Which structure might contribute to the asexual reproduction of a plant ?
A. Seed
B. Bulb *
C. Gametophyte
D. Pollen grain
1527. What strategy does a plant use to move in response to stimuli?
A. Differential cell elongation *
B. Muscle fiber activation
C. Myofibril extension
D. Vascularization
1528. Which structure is not part of the androecium ?
A. Anther
B. Stamen
C. Filament
D. Style *
1529. In Which tissue are cells dead at maturity ?
A. Endosperm
B. Xylem *
C. Mesophyll
D. Phloem
1530. Where might you find scale leaves ?
A. Stems
B. Ovaries
C. Flowers
D. Tubers *