BLG1603 Assignment 3 (DETAILED ANSWERS PORTFOLIO) 2023 (313615) - DUE 15 September 2023, 11:00 PM
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Course
Biology Practical
Institution
University Of South Africa
BLG1603 Assignment 3 (DETAILED ANSWERS PORTFOLIO) 2023 () - DUE 15 September 2023, 11:00 PM 100% TRUSTED workings, explanations and solutions. For assistance call or us on .
SECTION A:
Question 1
Microscopy
Question 1
1. Total magnification is the product of two values: power of eyepiece...
OCTOBER/ NOVEMBER 2023
Due Date: Friday, 15 September 2023, 11:00 PM
Unique number: 313615
INSTRUCTIONS
Answer all the questions for the portfolio (assessment 03).
Submit your assignment online via myModules.
Submit a pdf file (one file).
No downloaded drawings that have been directly copied from the sources are allowed.
Draw yourself the diagrams.
SECTION A:
Question 1
Microscopy
Question 1
1. Total magnification is the product of two values: power of eyepiece and power of?
A. Diaphragm
B. Ocular lens
C. Objective lens
D. Illumination
2. The two knobs used for focusing the image include fine adjustment knob and?
A. Stage
B. Course adjustment knob
C. Diaphragm
D. Objective lens
3. Which of the following are low power lenses? Give one.
A. 4X
B. 10X
C. 40X
D. 100X
1
, 4. A microscope is set to 10x eyepiece and 100x objective. What is the total
magnification?
A. 100x
B. 110x
C. 1000x
D. 1010x
5. Which part of the microscope should you hold when lifting or moving the
microscope?
A. Objectives
B. Arm and base
C. Eyepiece and body tube
D. The base and stage
[1 x 5 =5]
Question 2
Draw a labelled diagram of a compound microscope. [15]
Question 3
Laboratory Safety Guide and Waste management in the labs
3.1 Write explanatory notes on the use of PPE in the labs and give at least two
specific examples. (6)
3.2 Give at least 2 examples of principle of was management in the labs. (4)
[10]
Question 4
Plant Structure
4.1 What are the functions of stems?
____________________________________________________________________
__________
____________________________________________________________________
__________ (4)
4.2. What are the functions of leaves?
____________________________________________________________________
__________
____________________________________________________________________
(4)
2
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