BIOLOGY 120 LAB MINI PRACTICE EXAM #1

Instructions There are 13 slides with two questions each. You will have one minute per slide Write your answers down. You can check your answers on the last slide CLICK HERE TO BEGIN

A. What is the function of the iris diaphragm? B. Identify the microscope part labeled “B”. 1. Identify B

B 2. Are these eukaryotic or prokaryotic cells seen below? Identify the cell part at the tip of the arrows. B

3. What is the name of this aquatic plant that we have used in lab? What is the function of the structures labeled “B”. B

A B 4. What phase of the cell cycle is this? Is this a plant or animal cell dividing? B A

B 1 3 2 5. Which of the following is the Amoeba (1, 2, or 3)? Identify these structures (structured labeled “B”). B B 1 3 2

6. Are these cells in an isotonic, hypotonic, or hypertonic solution? What is the term for a membrane that lets some things through but not other things? A

7. What is the name of the SUBSTRATE we used in this lab experiment? B. Name one characteristic of an enzyme.

8. Enzymes are: a. carbohydrates b. proteins c. nucleic acids d. lipids B. The process the creates a proteins form mRNA is: a. replication b. transcription c. translation d. cytokinesis

Does this plant have vascular tissue? Why does this plant need to live near water/moisture? 9. A & B

10. these mosses sporophytes or a gametophytes? B. Why do these plant need to be small?

A 11. Identify the structures at the arrow? B Identify the organism seen in the photo to the right. A A

Identify the structure What is the function of this structure? 12. A B

Which group of plants studied in lab does this come from? State a function of fruit in Angiosperms. 13. A B

The next slide has the answers CLICK HERE TO SEE ANSWERS

ANSWERS 7a. hydrogen peroxide 1a. Control light intensity 7b. varies 8a. proteins 8b. translation 9a. yes 9b. flagellated/swimming sperm 10a. gametophytes 10b no vascular tissue/no roots 11a. air cysts 11b. brown algae 12a. petals 12b. protection 13a. gymnosperms 13b. dispersal (or protection) of the seed 1a. Control light intensity 1b. Stage 2a. Eukaryotic 2b. Plasma Membrane 3a. Elodea 3b. Photosynthesis 4a. Metaphase 4b Animals 5a 1. 5b Cilia 6a Hypertonic 6b Selectively permeable