Bio Exam 2

Why do we need so much ATP generated through cellular respiration?

-Maintaining the operations of a cell is energy intensive! -Without large quantities of ATP, multicellular organisms would not be able to maintain homeostasis and would die

Which of the following is correct balanced equation for photosynthesis

6CO2 + 6H20 --> C6H12O6 + 6O2

Carbon dioxide

Attached to RuBP in the fixation phase of the calvin cycle

In biology, --- are responsible for taking sunlight energy and converting into the products ---

Autotrophs; glucose and oxygen

What is produced as a result of cellular respiration

Carbon dioxide water ATP (36) Heat

How does carbon dioxide enter leaves of most plants

Carbon dioxide enters through the stomata

During Krebs cycle, oxaloacetate combines with acetyl Co-A to form citrate, subsequently there are chemical reactions mediated by enzymes that form carbon dioxide and

Electron carriers ( NADH+H+ and FADH2)

Which of the following is the correct sequence of events in the calvin cycle?

Fixation, reduction, regeneration

What is the first process that must occur in order for glucose to be used in the formation of ATP

Glycolysis

What form of energy is light

Kinetic

In the absence of oxygen, organisms will use either lactic acid fermentation or alcohol fermentation to generate ATP

Lactic acid fermentation or alcohol fermentation

ATP synthase

Large integral protein

Why is oxygen needed for aerobic cellular respiration

Oxygen is the final electron acceptor, which allows for the "flow" of electrons to continue through the electron transport chain.

Which of the following is not part of photosynthesis

Photosystem II converts light energy into 1/2 of the glucose molecule, while photosystem I generates the second half

The first reaction that takes place during cellular respiration that splits glucose and produces two molecules of --- and 2 molecules of ---

Pyruvate; ATP

The Main purpose of Krebs cycle is to

Reduce the electron carriers NAD+ and FADH to NADH+H+ and FADH2

Water

Split by photosystem II in photosynthesis to donate electrons, and formed in cellular respiration during oxidative phosphorylation

Bioenergetics is best defined as

The flow of energy through biological systems(community, ecosystems, and biosphere).

At the end of the day, aerobic cellular respiration with glucose is fantastic but proteins and lipids are also capable of being catabolized and used in the metabolic pathways of cellular respiration

True

Which captures light energy in photoautotrophic organisms

chlorophyll and photosystems

Oxygen

generated when water is hydrolyzed in photosynthesis

While -- consume those products, and return --- back into the environment

heterotrophs; carbon dioxide and water