Class Notes (973,665)
CA (573,477)
UBC (13,804)
MICB (84)
MICB 201 (33)
Lecture 15

MICB 201 Lecture 15: Nutrition
Premium

by OneClass1332367 , Winter 2017
6 Pages
90 Views
Winter 2017

Department
Microbiology
Course Code
MICB 201
Professor
Wade Bingle
Lecture
15

This preview shows pages 1-2. Sign up to view the full 6 pages of the document.
Chapter 7: Nutrition
7.1 Roles of nutrients
Nutriets are sustaes take fro the eiroet ad used as
Sources of major bioelements
Sources of minor bioelements
Sources of electrons
Sources of energy or components of reactions that yield energy
e.g. energy sources and terminal electron accepters (TEAs)
7.2 Types of nutrients
1) Light
2) Chemical
Organic (CHX)
Possess C and have at least one C-H, N-H or S-H bond
Many different types of organic chemicals most are composed of several major
bioelements
Inorganic
Lack C or if have C, lack C-H, N-H or S-H bonds
Many different types of inorganic chemicals
7.3 Nutritioal diversity: trophs
Nutritional diversity: different organisms use different nutrients to satisfy their nutritional
requirements
Energy Source
Light
Phototroph
Chemical
Chemotroph
Electron Source
Organic chemical
Organotroph
Inorganic chemical
Lithotroph
Carbon (C) Source
Organic chemical
Heterotroph
Inorganic chemical
e.g. CO2
Autotroph
find more resources at oneclass.com
find more resources at oneclass.com
Terminology is really for organisms.
Examples:
Humans: chemoorganoheterotroph
Plants complicated:
- Organism: photolithoautotroph
- Energy: light
Electrons: H2O
Carbon: CO2
- Green tissue is photolithoautotrophic
- Non-green tissue is chemoorganoheterotrophic
A note on autotrophic prokaryotes and other autotrophs
Autotroph eas self-feeder
Ofte, autotrophs are said to ake their o food so the do ot rel o
molecules produced by other organisms
This is NOT TRUE
CO2, H2O, O2, minerals and light are plant food
Plants and other autotrophs do rely on molecules produced by other organisms
e.g. consume CO2 produced by heterotrophs
Concept applies to plant-like prokaryotes
7.4 Nutrients as sources of chemical elements
Major bioelements
C, N, P, S, O, H
Required to build organic cellular molecules. eg. protein, DNA, RNA, lipid,
polysaccharide etc.
Nutritional sources of major bioelements: varies with organism
Minor bioelements (aka minerals, trace elements)
Fe, Ca, Mg, Zn, Cu, others
Required for enzyme function: most form part of the structure of active sites
Electron carriers in ETC (e.g. Fe+3, Cu+2)
Membrane stabilization (e.g. Mg+2 and Ca+2)
Nutritional sources of minor bioelements same for all organisms: found in soil and
rocks so end-up i ater; the’re everywhere
Special case: Vitamins
Small organic molecules: composed of the major bioelements
Examples: Riboflavin, Thiamine, Niacin
find more resources at oneclass.com
find more resources at oneclass.com

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.

Leah — University of Toronto

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto
Saarim — University of Michigan

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan
Jenna — University of Wisconsin

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin
Anne — University of California

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California
Description
Chapter 7: Nutrition 7.1 Roles of nutrients Nutrients are substances taken from the environment and used as Sources of major bioelements Sources of minor bioelements Sources of electrons Sources of energy or components of reactions that yield energy e.g. energy sources and terminal electron accepters (TEAs) 7.2 Types of nutrients 1) Light 2) Chemical Organic (CHX) Possess C and have at least one C-H, N-H or S-H bond Many different types of organic chemicals most are composed of several major bioelements Inorganic Lack C or if have C, lack C-H, N-H or S-H bonds Many different types of inorganic chemicals 7.3 Nutritional diversity: trophs Nutritional diversity: different organisms use different nutrients to satisfy their nutritional requirements Energy Source Light Phototroph Chemical Chemotroph Electron Source Organic chemical Organotroph Inorganic chemical Lithotroph Carbon (C) Source Organic chemical Heterotroph Inorganic chemical Autotroph e.g. CO2Terminology is really for organisms. Examples: Humans: chemoorganoheterotroph Plants complicated: - Organism: photolithoautotroph - Energy: light Electrons: H 2 Carbon: CO 2 - Green tissue is photolithoautotrophic - Non-green tissue is chemoorganoheterotrophic A note on autotrophic prokaryotes and other autotrophs Autotroph means self-feeder Often, autotrophs are said to make their own food so they do not rely on molecules produced by other organisms This is NOT TRUE CO 2 H2O, O 2 minerals and light are plant food Plants and other autotrophs do rely on molecules produced by other organisms e.g. consume CO p2oduced by heterotrophs Concept applies to plant-like prokaryotes 7.4 Nutrie
More Less
Unlock Document

Only pages 1-2 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

You've reached the limit of 4 previews this month

Create an account for unlimited previews.

Already have an account?

Log In


OR

Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit