Major characteristics of organisms
- Organisms continuously exchange material with their surroundings
- Every organism is a transient island of negative entropy
Living organisms are not in equilibrium with their environment
- Homeostasis and sur
prize of $500
an MCAT Prep
Brown Student Services Building
Prelecture Quiz 1 on material in Lecture-8
Biology 205 - Lec 9
Metabolic rate and
January 24, 2014
But two clicker questions first !
Why is the net cost of locomotion minimum in
swimming as compared to running and flying?
Because swimming speed
never reaches as hig
Dates of quizzes, Post-lecture tests and
When you have question or need information on any aspect of prelecture quizzes, post-lecture tests and midterm exam, please first
consult HANDOUT, inserted in the course pack before sending
me an emai
Clicker participation record problem
The problem with sorting first, middle and last names lies with the software
and the ICS can not do anything about it except that they have informed the
software company TurningPoint Technology.
I shall take care of
Information about the posted Clicker participation file
The file was downloaded with your names and associated clicker Ids.
But I am not supposed to post your names on a file that everyone of you
can see. Normally, it is done by posting your
The McGill Science Undergraduate Research Journal is
hosting free R workshops! First session is coming up!
When: Wed., Feb. 12, 4-6pm
Where: STBIO N4/17
For more info and to sign up, visit our website at
Update on Clicker participati
Post-Lecture test (PLT) 1 Posted
PLT-1 has been posted.
It is accessible to you from 10:30 AM today to 9:30
AM on Monday.
It covers the material lectures 2 to 11.
It has 20 multiple-choice questions.
You have one attempt of 4 hours.
Biology 205 - L
1. Quiz3 on lecture 14 has been posted on
It is accessible to you starting 10:30 AM today
until 9:30 AM on Wednesday.
2. Next week, I shall betalking about the
types of questions in the midterm and
how to answer them.
Post-Lecture Test (PLT) 1 coming
PLT-1 will be accessible to you from 10:30 AM on Friday
to 9:30 AM on Monday.
It will be on the material in lectures 2 11.
There will be 20 multiple choice questions.
You will have one 4-hour attempt
This PLT is worth
Biology 205 - Lec 14
Translocation of Photosynthates
(Products of photosynthesis)
February 5, 2014
Next - Some clicker questions
In still air, rate of transpiration is limited by:
Diffusion coefficient of water
Announcement - Quizzes
A practice quiz (P-Quiz) on the material in lecture-6 has been
posted on MyCourses. This P-Quiz will not contribute to
your grade. The objectives of the Practice Quiz are for you
to get familiarized with the procedures involved and
Some Characteristics of Organisms
Introduction to control theory
Introduction to Isometry and Allometry
Origin and evolution of life is a
continuation of chemical evolution
Many organic molecules now associated with livin
Misc. Information about course pack
During the years course pack has undergone many
Two completely new lectures were introduced in 2013.
Thus any version older than 2013 will not be suitable.
Lecture-38 this year is completely new. Therefor
Why do organisms need minerals?
Importance of N in plant nutrition
The xylem as water-conducting tissue
Structural elements of the xylem involved in the upward water movement
Identification of the phloem as the transport tissue
Midterm Grading Key: Questions and expected answers
Question 1. Imagine that (radioactive) escaped from a radioisotope production facility
and contaminated a field of corn (a C4 plant), a field of potatoes (a C3 plant) and a large
Biol205-2014 - Answers to sample questions Part 1
Question 1. All active transport requires expenditure of energy which ultimately comes from
ATP hydrolysis. Due to this expenditure of energy, active transport can occur against a
Answers to Sample Question-Part-2
Length is proportional to diameter2/3 or diameter0.67
Body mass is proportional to length3.
Square root of 125 times or about 11.2 times
The ends of
Welcome to Biology 205 - 2014
(Biology of Organisms)
BIOL 205 - 2014
Introduction to the course
Jan 6, 2014
Outline of Lecture
Biology of Organisms as a subject
Relationship to other courses
Organization of this co
Biology 205 - Lecture 05
Whole plant and crop photosynthesis
Practice quiz becomes available at 10:30 AM.
Read lecture-6 in course pack before starting.
Save your answers frequently.
Do not click on Submit/finish before completi
Biology 205 2011
Final Exam Grading Guidelines
Question 1. Sensory receptor cells are common in vertebrates and invertebrates. Answer
the following questions:
a) Identify three functional elements that are common to all sensory receptor cells.
Biology 205 - Lec 16
Gas exchange mechanisms in animals
February 10, 2014
Need for gas-exchange surfaces
All living cells in an organisms body respire to produce their
own energy. They need O2 !
They also need to get rid of CO2.
Not all of them ar
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1. Post-Lecture Test 2 has been posted:
It has 20 questions.
Covers the material in lectures 12-18
You have one attempt of 4 hours
It is worth 3.5% of your final course grade
2. Your marks in the first 4 quizzes have been
3. I sh
Biology 205 Lecture-06
Acquisition of Food and Energy in Animals
Clicker review questions, first !
Which of the following statements correctly describes the effect
of a decrease in ambient O2 concentration on vegetative growth?