1. JUNIOR HIGH SCHOOL
Detailed Lesson Plan in Science
Grade 10
I. Objectives
At the end of 60 (sixty)- minute period, at least 75% of the students can:
a) identify the basic parts of a nucleotide;
b) compare the structures of the DNA from RNA molecule; and
c) construct a simple DNA and RNA model.
Content Standard: The learners demonstrate an understanding of the
information stored in DNA as being used to make proteins
II. Subject Matter
Topic: Getting to know DNA and RNA
References: Science 10- LM (p. 266-268)
Materials: Multimedia presentation, visual aids, laptop, projector,
printed pictures
Strategies/ Skills: identifying, comparing and constructing
Subjects Integrated: English
Values Integration: Cooperation, Participation, Collaboration
III. Procedure
Teacher’s Activity Student’s Activity
A. Preparatory Activities
1. Prayer
Before we start, let’s have a
prayer. May I request _____ to
lead us a prayer.
(prayer)
2. Greetings
Good morning, class!
Good morning, Ma’am.
You may now take your seats.
3. Checking of Attendance
4. Checking of Assignment
2. B. Lesson Proper
1. Motivation
Class, before we start our discussion,
I will flash some pictures and you will
give comments to what have you observed.
Now, what have you observed?
Ma’am, we noticed that there
are some resemblance
between each pictures.
Very good observations!
Now, why do you think there are
people who resembles each other?
Ma’am this is because they
share the same genes, the
same DNA.
That’s correct!
2. Presentation
The idea behind the pictures I flashed
earlier is related to our lesson for today.
Our lesson for today is all about DNA
and RNA.
3. 3. Discussion
First, let us discuss nucleic acids.
It is one of the four categories of
biomolecules that functions as
information molecule.
Why do we call it information
molecule?
Ma’am, it is called information
molecule because it stores all
the genetic codes and
information we have in our
body.
That’s right!
Every polymer of nucleic acid
is a monomer of nucleotide.
What are the three basic parts of a
nucleotide?
The three basic parts of
nucleotide are:
1. Phosphate Group
2. Sugar Backbone
3. Nitrogenous Bases
Correct!
Now, can you give examples of nucleic acids?
Examples or nucleic acids are:
DNA and RNA
Very good!
What is your idea about DNA?
Ma’am, DNA stands for
deoxyribonucleic acid.
That’s right!
4. Since DNA is a nucleic acid,
therefore it is also composed of nucleotide.
Here are the structures of DNA:
Where do you think we can find
our DNA?
DNA is located inside the
nucleus of our cell.
Excellent!
Aside from DNA, RNA is another example
of nucleic acid.
What does RNA stands for?
RNA means ribonucleic acid.
Correct!
Here are the structures of RNA:
RNA is made inside the nucleus but it
goes out to the cytoplasm because it is
where it is needed to make proteins.
Why is it important that our body is
producing enough proteins?
Students answer may vary.
Ribose sugar
5. 4. Generalization
Now class, who will compare DNA from
RNA based from our discussion?
Ma’am, here are the
difference between DNA and
RNA:
1. DNA is double stranded
while RNA is single stranded.
2. DNA base pairs are A-T, C-G
while RNA base pairs are A-U,
C-G.
3. DNA is located inside the
nucleus while RNA is in the
cytoplasm.
4. Sugar for DNA is deoxyribose
while the sugar for RNA is
ribose.
Very good!
5. Application
The students will be grouped into four.
They will be given activity sheets with
instructions, procedures, materials and
questions to be answered for 5 mins.
After answering, they will report their
answers in front based in the questions
given. Each group will choose a
representative to report.
The students will perform the activity.
6. 6. Evaluation
Directions: Read the following sentences carefully. Choose the letter that
corresponds your answer. Write it in a one fourth sheet of paper.
1. The sugar backbone of RNA is called_________________.
a. adenosine
b. ribose
c. deoxyribose
d. thymosine
2. Which of the following is the correct base pairing for a DNA strand?
a. A-G; C-T
b. A-T; C-G
c. A-U; C-G
d. A-C; T-G
3. The following are the basic parts of nucleotide except___________.
a. Phosphate group
b. Sugar Backbone
c. Nitrogenous bases
d. Adenosine
4. Which biomolecule is known as information molecule and holds your
genetics?
a. Carbohydrates
b. Proteins
c. Lipids
d. Nucleic Acids
5. Which of the following is the correct base pairing for a RNA strand?
a. A-G; C-T
b. A-T; C-G
c. A-U; C-G
d. A-C; T-G
Key to Correction
1. B
2. B
3. D
4. D
5. C
7. IV. Assignment
Do an advance reading about the Central Dogma of Molecular Biology and
define the following terms:
1. DNA Replication
2. RNA Transcription
3. Protein Translation
Prepared by: JESSAH LARGUEZA FETALVER
Applicant
