Photosynthesis Overview

Flashcards covering key concepts of photosynthesis for exam preparation.

Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce __ from carbon dioxide and water.

glucose

The word equation summarizing photosynthesis is: + --> glucose + oxygen.

carbon dioxide; water

Chlorophyll is the green pigment associated with the conversion of usable sunlight energy into __ energy.

chemical

All photosynthetic organisms have __ a.

chlorophyll

Accessory pigments include chlorophyll b, xanthophylls, and __.

carotenoids

The thylakoid is the structural unit of __.

photosynthesis

Water enters the leaf through the xylem vessels and leaves through specialized openings called __.

stomata

The splitting of water molecules during photosynthesis occurs in the light-dependent reactions and is known as __.

photolysis

The two types of reactions in photosynthesis are light-dependent and __ reactions.

light-independent

The light-dependent reactions occur in the __ of the chloroplast.

grana

In non-cyclic phosphorylation, the final electron acceptor is __.

NADP+

The process of using the electrochemical gradient to produce ATP in the chloroplast is called __.

chemiosmosis

In cyclic phosphorylation, no __ is produced, but more ATP is generated.

NADPH

The first stable product of the Calvin Cycle is __, a 3-C chemical.

phosphoglycerate (PGA)

The main factors affecting the rate of photosynthesis are light intensity, carbon dioxide concentration, and __.

temperature

PSI is most efficient at absorbing light energy at __ nm.

700

PSII absorbs energy most efficiently at __ nm.

680