1. In your own words, define gross primary productivity. How does gross primary productivity differ from net primary productivity? ross primary productivity is the amountofenergy thatthe Producers in an ecosystem capture - Gro primary productivity differ from net primary productivit by the amount whereas net primary pYoductivity is farmer once respirat0 ha Gross producers cre ate ouer a set period of tim 2. Which would you expect to have a higher value of gross primary productivity: a plant measured from 8 be a.m. to 8 p.m. or a plant measured from 8 p.m. to 8 a.m.? Why? accou

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Can you only answer question two only
Pre-laboratory Questions
1. In your own words, define gross primary productivity. How does gross primary productivity differ from net
primary productivity?
- Gross primary productivity is the amount of enerqy
producers in an ecosysten captore
that the
- Grot primary productivity differ from net primary producdivit
by the
whereas net
amount
producers
cre ate ouer
a set period of time
Primary productivity is famer once respiration
ha
2. Which would you expect to have a higher value of gross primary productivity: a plant measured from 8
a.m. to 8 p.m. or a plant measured from 8 p.m. to 8 a.m.? Why?
Lee
accoun
Cor
Guided Activity
Overview
In this activity, you work with three planter cells of grass plants. During Week 1, you determine the mass
the grass from one ceil and then dry it so that you can later measure its dry mass. The mass from this first
cell of grass represents the initial mass of each of the cells. You place one of the remaining cells in the da
and the other under a light source for a week. You then dry these two sets of plants and determine thei
masses. By comparing your data, you calculate respiration, net primary productivity, and gross primary
productivity of the grass.
Materials
3 cells of grass plants
beaker of water
paper towels
drying oven
balance
jumbo pipet
plant labels
permanent marker
aluminum foi!
CAROLIKAT
Transcribed Image Text:Pre-laboratory Questions 1. In your own words, define gross primary productivity. How does gross primary productivity differ from net primary productivity? - Gross primary productivity is the amount of enerqy producers in an ecosysten captore that the - Grot primary productivity differ from net primary producdivit by the whereas net amount producers cre ate ouer a set period of time Primary productivity is famer once respiration ha 2. Which would you expect to have a higher value of gross primary productivity: a plant measured from 8 a.m. to 8 p.m. or a plant measured from 8 p.m. to 8 a.m.? Why? Lee accoun Cor Guided Activity Overview In this activity, you work with three planter cells of grass plants. During Week 1, you determine the mass the grass from one ceil and then dry it so that you can later measure its dry mass. The mass from this first cell of grass represents the initial mass of each of the cells. You place one of the remaining cells in the da and the other under a light source for a week. You then dry these two sets of plants and determine thei masses. By comparing your data, you calculate respiration, net primary productivity, and gross primary productivity of the grass. Materials 3 cells of grass plants beaker of water paper towels drying oven balance jumbo pipet plant labels permanent marker aluminum foi! CAROLIKAT
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