30.12.2014 Views

Biology - HOT Science Lab

Biology - HOT Science Lab

Biology - HOT Science Lab

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Teacher<br />

Cellular Respiration<br />

(Adapted from: State Adopted – Prentice Hall <strong>Lab</strong>oratory Manual B)<br />

NGSSS:<br />

SC.912.L.18.9 Explain the interrelated nature of photosynthesis and cellular respiration. (AA)<br />

SC.912.L.14.7 Relate the structure of the major plant organs and tissues to physiological<br />

processes. (AA)<br />

Purpose of <strong>Lab</strong>/Activity:<br />

To understand how photosynthesis and cellular respiration work hand-in-hand.<br />

To observe how cellular respiration occurs under aerobic conditions.<br />

Prerequisites: Prior to doing this lab, students should have been taught about cellular<br />

respiration including lactic acid fermentation, alcoholic fermentation, glycolysis, the Krebs cycle,<br />

and the electron transport chain. Students should also be aware of how photosynthesis and<br />

cellular respiration go hand-in-hand. The products of one process are the reactions of the other<br />

and vice versa.<br />

Materials (per group):<br />

Distilled water<br />

Straw<br />

Heat-resistant gloves<br />

Hot Plate<br />

Cotton ball<br />

Beakers 500-mL (two)<br />

Test tubes (4)<br />

Purple cabbage leaves or<br />

Bromothymol blue<br />

Test tube rack<br />

Slotted spoon (large)<br />

Stoppers<br />

Radish seedlings (10)<br />

Forceps<br />

Aluminum foil<br />

Procedure: Day of Activity:<br />

Before<br />

activity:<br />

What the teacher will do:<br />

a. Prep work: Germinate radish seedlings at least one week before lab. Use 1<br />

part Bromothymol blue to 10 parts of water as a substitution of the cabbage<br />

indicator.<br />

b. Essential question (or problem statement): ―How do organisms release<br />

energy from food‖<br />

c. Procedures: Students should read the entire investigation. Then, work with<br />

a partner to answer the ―engagement‖ questions. These questions should<br />

be in the student‘s hand-out.<br />

d. Once the students have completed the questions, initiate a class discussion<br />

asking different students to share their answers. Continue the discussion by<br />

asking the following questions.<br />

1. What is cellular respiration<br />

2. How are the processes of photosynthesis and cellular respiration<br />

related<br />

3. What are the reactants and products of cellular respiration<br />

4. In this investigation, how are we going to find out if plants carry on<br />

cellular respiration<br />

<strong>Biology</strong> HSL Page 128<br />

Curriculum and Instruction

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!