I Attach a 2

question 32

Multiple Choice

I attach a 2.0-kg block to a spring that obeys Hooke's Law and supply 4.0 J of energy to stretch the spring.I release the block;it oscillates with period 0.30 s.The amplitude is:

• A) 38 cm.
• B) 19 cm.
• C) 9.5 cm.
• D) 4.3 cm.

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Definitions:

Mesophylls

The inner tissue of a leaf, containing many chloroplasts, where photosynthesis occurs.

Stroma

Thick, cytoplasm-like fluid between the thylakoid membrane and the two outer membranes of a chloroplast. Site of light-independent reactions of photosynthesis.

Rubiscos

The enzyme involved in the first major step of carbon fixation in the process of photosynthesis, playing a pivotal role in converting carbon dioxide into organic compounds.

Stomata

Singular stoma. Of plants, tiny gaps between pairs of guard cells in epidermis; allow internal tissues to exchange gases with the air. Can be closed to prevent water loss.