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
