Chapter 6 Cell Biology 4: Cellular Respiration
1. There are _________types of cellular respiration that always begin with the _________ of ______ (__________):
a. _________ ___________ – does ___ use _______. ___________ ___________ (glycolysis)only produces _ ___ for _ molecule of _______ broken down.
This is believed to be the _____ type of cellular respiration that _______ because early Earth’s
atmosphere lacked oxygen. ex: _____ and ________
6.1 Aerobic vs Anaerobic Respiration
b. _______ _________
uses ______. Net ATP gain __-__ ATP for 1 molecule of glucose that is split. ex. ______
6.1 Aerobic vs Anaerobic Respiration
6.2 Cellular Respiration
2. ________ ____________ is the process that ________ the energy in _______ to make ___ – the molecule that ______ all the work of cells
There are 3 Stages of Cellular Respiration A. Stage 1 : __________ – “_________ of _______” the
_________ process that takes place in the _______ B. Stage 2: ___ _____ _____ (______ ____ _____) –
takes place in the ______ of the _____________ and requires ______
C. Stage 3: ________ _________-takes place in the on the _____ ________ of the _______________ and requires _______
6.2 Cellular Respiration
3. The _________ of the mitochondria is the key to aerobic respiration. There are __basic parts: an _____ and _____ membrane
�The _____ between the two is called the ____________ _____. � The _____ ________ by the inner membrane is called the ______. (in blue) a. the _____ _____ takes place here � ________ _________ takes place __ the _____ ________.
6.3 Glycolysis
3. Stage 1: Glycolysis ___________ – It does ___
require ______, and it does not take place in the mitochondrion - it takes place in the _______ of the cytoplasm. _______ split a molecule of ________,
a six-carbon molecule, into ___molecules of a three-carbon compound called ________ that releases energy that is transferred to ___.
� The process is started by __ ___. At the end of the process you have __ ___.
_ ___ - _ ___= _ ___ net gain. � High energy _________ are transferred to _____
molecules to make _____, another ______ _______ molecule used in Stage 3
4. Stage 2: ___ _____ _____(aka ___ ______ ____ _____) �Before the _ ________ molecules
from __________ enter the _______ of the mitochondria to start the Krebs Cycle, the _ carbon ________ is split apart and combined with an _______ CoA to make a two carbon compound called ______ - ____ �Acetyl-CoA combines with a 4 carbon
compound to produce ______ ____ acid (that’s why it’s called the Citric Acid Cycle) Each compound goes through the Krebs cycle once and generates 1 ATP for a total of __ ____
6.4 The Krebs Cycle (aka the Citric Acid Cycle)
� ______ _______ is given off as all six of the original _______ from glucose have recombined with ______ to form ______ _______. � The energy from these broken bonds are stored in chemicals that ____ _______, (____ & ______) including _ ____( _ ___ from glycolysis + _ ___ from Krebs Cycle)
5. Stage 3: ________ _________ � During this stage, ___ other energy molecules NADH &
FADH2 from the Krebs Cycle are transferred into ___ by collecting high energy electrons from the ________ _________ _____
� ________ _________ _____ – (________ ________) as electrons are ___________ down the chain, ___ is _________ (takes place on _____ ________ of the mitochondria) �As a result, __ additional ___ is made �___ _________acts as a _______ _______ helping the
hydrogen ions cross the membrane. It also acts as an _______, forming ___ from ___ and inorganic _________.
6.5 Electron Transport
6.6 Fermentation
6. Review: In __________, a single molecule of _______ is ___ in ____ by enzymes through a series of steps to produce ___ molecules of ________. (Step 1) � At the same time, only ___molecules of ATP are
produced from the splitting of ___ molecule of glucose – great if you are a bacteria, not so great if you are human and need a lot of energy!
6.6 Fermentation
� ____________ is an _________ energy-generating process (no new ATP is produced)
A. It uses _________ to produce two ATP molecules B. There are 2 basic types of fermentation: 1. Your ______ _____ and ________in the ______making process can produce a _____amount of ATP without using oxygen by undergoing ______ ____ _____________ a. this process allows your ________to continue
to ____, under extreme conditions, while your body is using ______ ________ – a build-up of ______ _____ makes your _______ ____
�The _______ and ___________ industry have used _______ ____________ for thousands of years 1. _____ are single-celled _____ that not only can use
respiration for energy but can _______ under ________ conditions
2. They convert ________ to ____ and _______ 3. The ______ _______ produced provides the _______ in
____ and _________ and also the _______ in _____ that cause _____ to ____.
4. ________ in our ___ also produce ___ through ____________ �Why we fart.
6.7 Advantages of Anaerobic and Aerobic Respiration
Aerobic Respiration
�One advantage of is that our __________ is __% ______
so it is in ____ supply �It also breaks down _______ completely into ______ _______, unlike
anaerobic which stops the breakdown ending in
pyruvate �It also produces ___ -___
___ from one molecule of glucose
Anaerobic Respiration
� One advantage of is that it _______ _________ to live in places with ______
or __ _______ like _ . ____ bacteria lives in the human
digestive tract �__________
____________ also produces ___ very
_______; aerobic more slowly