Staple in this corner
© James E. Mickle and Patricia M. Aune 2009
1. Perform a nutritional analysis on your diet.
2. Estimate and measure your caloric needs and outputs.
3. Compare the nutritional value of various foods.
1. Read Chapter 21.13 - 21.20 in Campbell
ed. or 21.14 -21.24 in the 5
ed. or 21.14 – 21.23 in 6
2. This lab requires the use of a pedometer. Completion of at least 5 lab units, with write-ups
submitted and quizzes taken, is required before the equipment will be sent to you. In
addition, you must submit the completed request for equipment on the last page of this
lab unit. In addition, please send an e-mail request for the equipment to
email@example.com or firstname.lastname@example.org.
This entire completed lab unit, including all tables and questions.
All organisms require a source of energy and raw materials for growth, maintenance, and
is the study of the needs, use and acquisition of the complex of organic
and inorganic substances referred to as
. Some organisms, such as plants, require only
inorganic substances from their environment and have the ability to fashion these inorganic
substances directly into organic substances. Other organisms, such as animals, must have an
outside source of organic foodstuffs.
Animals, unlike photosynthetic plants, must have an external source of organic compounds as a
part of their food. Included in these organics must be those amino acids and vitamins that they
cannot manufacture in their bodies and therefore must be in the diet. Like plants, animals must
have external sources of minerals.
For this activity, you will maintain a record of all the food that you eat for a five day period. In lab,
you will analyze the diet you have recorded using a computer software package that gives
nutritional information about the food that you have eaten. You can then evaluate your diet for
nutritional excesses and deficiencies. This information will allow you to make modifications in
your diet as necessary.
Estimate Your Energy Needs
Your energy needs have two components: the basal metabolic rate (BMR) and energy for
activities. The BMR is defined as energy needs at rest. BMR varies with height, weight, gender,
and age. Energy for activities includes the energy needed for skeletal muscle action. This varies
with the level of activity which is correlated to a certain extent with occupation. In order to
estimate you total energy needs, we must estimate each of these two components.