SECOND PERIODICAL TEST

Photosynthesis is a process that converts:

• A. Chemical energy into light energy

• B. Light energy into chemical energy

• C. Carbon dioxide into oxygen

• D. Water into glucose

The two main stages of photosynthesis are:

• • Light reaction and dark reaction

• • Glycolysis and Krebs cycle

• • Calvin cycle and electron transport chain

• • Photosystem I and photosystem II

The main products of the light reaction are:

• • Glucose and oxygen

• • ATP and NADPH

• • Carbon dioxide and water

• • Pyruvate and NADH

The process of chemiosmosis involves:

• • The transfer of electrons through the electron transport chain

• • The splitting of water molecules

• • The creation of a proton gradient across a membrane

• • The fixation of carbon dioxide

The primary pigment involved in photosynthesis is:

• • Chlorophyll a

• • Chlorophyll b

• • Carotenoid

• • Phycobilin

The electron transport chain in photosynthesis is located in the:

• • Stroma

• • Thylakoid membranes

• • Cytosol

• • Nucleus

1. The term "autotroph" refers to organisms that:

• • Cannot produce their own food

• • Can produce their own food

• • Consume other organisms for food

• • Are decomposers

1. The term "heterotroph" refers to organisms that:

• • Cannot produce their own food

• • Can produce their own food

• • Consume other organisms for food

• • Are decomposers

1. Which of these word formulas for cellular respiration is correct?

• • Glucose + Water --> Carbon dioxide + Oxygen + Energy

• • Carbon dioxide + Water + Energy --> Glucose + Oxygen

• • Energy + Water + Oxygen --> Glucose + Carbon dioxide

• • Glucose + Oxygen --> Carbon dioxide + Water + Energy

1. What is the primary purpose of cellular respiration?

• • to produce oxygen

• • to convert light energy into chemical energy

• • to break down glucose and produce ATP

• • to store energy in the form of glucose