Exam 3- Respiration

Biology 101p with King/mocny at Central Michigan University

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By: Marci Westman
Created: 2008-04-08
Size: 57 flashcards
Views: 43

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define respiration

oxidation of organics in a STEPWISE fashion through a series of enzymatic reactions to yield a CONTROLLED release of energy (ATP)

respiration is the oxidation of organics in a _______ fashion through a series of enzymatic reactioons to yield a ______ release of energy (ATP)

Stepwise
Controlled

why does cellular respiration take place slowly?

so we can harvest the energy

Respiration is A.K.A

"the fire of life"

what is phosphorolation

adding a PO4 to ADP to make ATP

ATP is this type of general organic compound

nucleotide

what are the 3 types of phosphorolation

oxidized, photophosphorolation, and substrate level

what is oxidative phosphorolation?

it is when something is oxidized and reduced. It occurs mostly in the ETS.

what is photophosphorolation?

phosphorolation that involves light

what is substrate level phosphorolation?

-used in glycolosis and kreb cycle
Chem A--> Chem B
- Exergonic

where is energy stored in ATP?

in the bond between ADP and P

what are the 3 kinds of work ATP is used in?

chemical, mechanical, transport

what are the four stages of respiration?

1. glycolosis
2. preperatory reactions
3. Kreb Cycle
4. Electron Transport System

where does glycolosis take place?

in the cytoplasm

where do preperatory reactions take place?

in the lumen/matrix of the mitochondria

where does the Kreb Cycle occur?

in the lumen/matrix of the mitochondria

where does the ETS take place?

in the cristae of the mitochondria

why is the number of atp produced by NADH different than the number of ATP produced by the FPH?

because the flavoprotein cant take electrons from another flavoprotein

in what stage is the most ATP produced?

ETS

in what stage is the most CO2 produced?

Krebs Cycle

In what stage is the most potential for ATP produced?

Krebs Cycle

what is the primary electron acceptor?

NAD

what is the terminal electron acceptor?

oxygen

what are the four products of respiration?

H2o, Co2, Heat, and ATP

what organelle functions in respiration?

mitochondrion

what is the invaginated portion of the membrane of the mitochondria, and what occurs here?

Cristae
ETS

what is the central portion of the mitochondria referred to as, and what takes place here?

lumen or matrix
Krebs Cycle and Preperatory Reactions

what are the particles on the cristae?

f1 particles

what do the f1 particles on the cristae do?

help with phosphorolation

what happends in glycolosis?

sugar is broken down into two Pyruvic Acids (2C3)

C6 --> 2C3 Molecules

Glycolosis

how many ATP does glycolosis produce?

4 but two is used to cross the membrane of the mitochondria

what happeneds during the preperatory reactions?

pyruvic acid is converted into Acetyl CoA

what is pyruvic acid

what is acetyl CoA

C3-->C2

Preperatory reaction

how does pyruvic acid become Acetyl CoA?

it gives off a CO2

what does acetyl CoA combine with at the beginning of the Krebs cycle?

Oxaloacetic Acid (c4)

what is Oxaloacetic Acid

(c4) it combines with Acetyl acid in krebs cycle to make citric Acid (c6)

Citric Acid

what kind of phosphoraltion is used in the krebs cycle?

substrate level

how many times does the kreb cycle go around for each molecule of glucose?

twice

how many total ATP are produced in respiration?

38 but only 36 are used because it costs 2 to cross the membrane of the mitochondria

which step of respiration doesnt create ATP?

preperatory reactions

along with O2, what can start the respiration process?

C H20(carbohydrate)
organic compound
C6H1206

What chemicals are located on the cristae?

the chemicals of the ETS

what is the citric acid cycle?

the krebs cycle

About this deck

By: Marci Westman
Created: 2008-04-08
Size: 57 flashcards
Views: 43

About StudyBlue

“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis