Guidance Lecture of Malaysia Matriculation Biology

by

Amran Md Said
Matriculation College of Pahang

Berbuka Puasa

Cara sebahagian pelajar Kolej Matrikulasi Pahang berbuka puasa

suasana ini merupakan fenomena biasa dertahun lamanya di Kolej Matrikulasi Pahang, happening




Experiment 5 : Cell Division - Mitosis

Objectives

1. to prepare onion root tip slides
2. to identify stages in mitosis


Exercise 5.1  : Prepared slides of mitosis

Exercise 5.2  : Preparation of onion root tips slide




Questions

1. What is stage in mitosis that freqently observed? Why?


     Interphase because was the most frequent stage observed among the four stages of mitosis since it is the longest stage in a cell cycle.

2. Describe the chromosome behavior at each stage in mitosis


     Behavior at each stage in mitosis.
Prophase    – Chromosomes shorten/condense.
Metaphase – Chromosomes arrange on equatorial plate /
                       metaphase plate.
Anaphase – Chromosomes split and move to opposite poles of the
                     cells.

Telophase – Chromosomes arrive at the opposite poles.

3. Where does mitosis actively take place in plants?


     Root tips and shoot apex.

4. Discuss the importance of mitosis

       Importance of mitosis:
                             i.      Maintain the genetic material.
Formation of new cells which are identical to  parent cell in terms of  number and structure of chromosomes
                             ii.      Asexual reproduction.
Mitosis is the basis of asexual reproduction, production of new individuals of a species by one parent organism.
                           iii.      Regeneration.
Some animals are able to regenerate whole parts of  body, such as arms in star fish
                           iv.      Growth.
Increases number of cells in multicellular organisms
                             v.      Cell replacement.

Replaces damaged / old cells/tissues

Organelles

Hasil kerja from 1M1S07

Credit to :
 - Kamal Amani bin Amzah
 - Safira Nabila bt Kamarudzaman
 - Wong Shu Kee
 - Nurul Iffah Izyan bt Akhirrudeen




Experiment 8 : Introduction to Nucleic Acids

Objectives

1. To describe the structure of a nucleotide
2. To construct the structure of a polynucleotide chain
3. to differentiate the structures between RNA and DNA molecules




Puzzel DNA

Puzzel RNA




Question

1. What is nucleotide?

   Consist phosphate, pentose and base

2. Name the bases found in DNA and RNA

    DNA - Adenine, Guanine, Thymine and Cytosine

    RNA - Adenine, Guanine, Uracil and Cytosine

3. How many hydrogen bonds are found adenine and thymine?

     two hydrogen bond

4. Compare the structure and functions between RNA and DNA molecule.


Still in writing

Experiment 3 : Plant Histology

Objective

1. to prepare and identify the onion epidermal cells
2. to identify different types of plant tissues
3. to compare the structure and distribution of tissues in monocots and dicots

Exercise 3.1  :  Identification of epidermal cells in onion




Exercise 3.2  :  Structures of plant tissues in plants

Collenchyma

Parenchyma

Dicot

Monocot
Questions

1. You are given two slides of cross section of Angiosperms stems and roots. How would you differentiate between the following?
   a) the stems of monocot and dicot plants
   b) the roots of monocot and dicot plant


2.  Describe the structures and functions of parenchyma, collenchyma and sclenchyma cells


3.  Compare the structure and functions of plant epidermal and animal epitheliail tissues












Experiment 2 : Animal Histology

Objective

1.   To examine the animal tissues under the light compound microscope
2.   To identify the structure and organization of animal tissues 


(I) Epithelial Tissues

100x Squamous Epithelium
100x Cuboidal Epithelium
100x Stratified Epithelium
100x Columnar Epithelium
(II) Nerve Tissue
100x Nerve 
(III) Muscle Tissues
100x Smooth Muscle
100x Skeletal Muscle
100x Cardiac Muscle

(IV) Connective Tissues

100x Bone
100x Hyaline
100x Blood


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