Biology & Chemistry (AP, IGCSE, A level, American Diploma) - Cairo

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Biology & Chemistry (AP, IGCSE, A level, American Diploma)

From 11 C$ /h

I am Dr. Niddal S. Abu Hujier, Ph.D. in Biology, with more than 27 years of university teaching experience in Biology, Chemistry, and Biotechnology Courses.

I provide personalized tutoring for students studying international curricula, including:

• AP Biology
• AP Chemistry
• American Diploma Biology & Chemistry
• Honors Biology & Honors Chemistry
• IGCSE Biology & Chemistry (Cambridge & Edexcel)
• AS & A Level Biology & Chemistry
• IB Biology (SL & HL)
• IB Chemistry (SL & HL)

My teaching focuses on:

Building strong scientific concepts.
Developing critical thinking and problem-solving skills.
Preparing students for exams with effective strategies and extensive practice.
Simplifying complex biological and chemical concepts.
Helping students achieve excellent grades and university admission goals.

Lessons are available online or in person, with individual and small-group sessions tailored to each student's learning needs.

I am committed to helping every student build confidence, excel academically, and reach their full potential.

Location

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At student's location :

Around Cairo, Egypt

Around Cairo, Egypt

Age

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Advanced

Duration

60 minutes

90 minutes

120 minutes

The class is taught in

Arabic

English

Skills

Science

Biology

Chemistry

Availability of a typical week

(GMT -04:00)

New York

At student's home

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Quality in medical laboratories for university medical analysis students

7 C$ /h

Quality procedures are one of the important measures to continue providing distinguished service to medical laboratories. The lessons in this course talk about quality methods and procedures in medical laboratories, whether related to employees or technical methods.
This course features many branches related to quality, the first of which is the administrative branch, then the documentary branch, then the accounting branch.

Molecular biology, cell biology, and general chemistry

7 C$ /h

Molecular biology lessons cover everything the student needs to know about genes, chromosomes, the nucleus, and division mechanisms. As for cellular biology, it is concerned with everything that goes on inside the cell, including mechanisms, metabolic processes, cell interactions with the external environment, their division, and their adaptation to various physiological variables. As for chemistry, it relates to many of the basics of chemistry and the main interactions of the elements.

Razan

3.0

(2)

I’m in love with teaching espically pre-KG , KG and Primary Stages, because the children are implmenting at these stages, So It is a responsible I know, but I feel SO PROUD of them after finishing the last Stop with me in Primary, Doing my best to just help them😊

Graduated From British School and University
I Teach both National and International (British/American) Systems

Noura

3.0

(2)

I do explain science(chemistry, biology, physics) for students in sample way and help them to memorize the information easily.

I teach American and IG system.

We explain the lesson and solve on it from past papers or work book and the next class we have a quick quiz on the last classes we took .

Ihab

3.0

(2)

My name is Ihab. I work as an R&D pharmacist for pharmaceutical companies. I qualified in both the UK & Egypt. I am interested to work as a freelance tutor. I have a very strong background in chemistry, biology and physics. Chemistry and biology constitute a very important part of my studies and job. In addition, I have always had personal passion for learning physics. Since I was in university, I enjoyed tutoring to my colleagues. I can tutor for grades 10, 11, 12 in the IGCSE system (OL, AL), as well as mainstream secondary school system.

Adel

3.0

(2)

I am a retired Chemistry University Professor who has a Ph.D. from USA and a postdoctoral fellowship from Germany and wishes to teach IGCSE chemistry courses. I am quite familiar with the IGCSE chemistry subjects but I have no previous experience in teaching IGCSE chemistry courses. Therefore, I am willing to teach the courses with quite modest cost of roughly LE 100 per hour. My aim at the beginning is to get experience in IGCSE chemistry teaching rather than money. If necessary, I am willing to spend more time with students solving problems. I taught most of this IGCSE chemistry courses subjects to undergraduate university students probably more than 50 times before.

Joy

3.0

(2)

Calling all curious minds! Our Math and Science Classes for elementary students are designed to spark creativity, inspire discovery, and make learning fun. Through exciting hands-on activities and engaging lessons, students will build confidence while exploring the amazing world of numbers, experiments, and problem-solving.

David

3.0

(2)

I can assure you top-quality interactive teaching styles and content since I'm currently a medical student, which means I had to excel in an all-round range of subjects including English, Math, and Biology.

I've studied and graduated high school in Dubai from the British curriculum IGCSE, in which I advanced in and aced 'English as a First language' with a proud A* considering my native language is Arabic, hence, English should've been my second language.

Upon graduation, I've since been very involved in various tuitions both private and in schools, for roles ranging from teacher's assistant to teacher for each of the subjects English, Biology, Chemistry and Math which gives me a sound background on the teaching skills required.

Rania

3.0

(2)

Science and biology are among the most interesting and exciting subjects
With me, you will be able to fully understand the scientific material
In English and Arabic
For the secondary stage revival and
For elementary and preparatory stages
Solving intense exercises
And follow up with the guardian
Weekly and monthly exams
This is to ensure obtaining the best grades

Nouran

3.0

(2)

A detailed explanation of science for the middle and secondary grades, languages, in a fun and interesting way for the student, with attention to solution and practice. My main goal is for the student to get out of the class without needing to read the lesson to consolidate the information.
Lessons within the scope of assembly and Nasr City.
A graduate of pharmacy from a German university with a general grade of excellence, and I am fluent in English.

Êmäñ

3.0

(2)

An English language school at home for primary, preparatory, secondary, and languages in Nasr City, a foundation course in grammar, method of pronunciation, writing a paragraph, and foundation in the language before the beginning of the curriculum, the duration of the class is from one hour to two hours, depending on the age and the course

هانى

3.0

(2)

Nucleic acids are essential biomolecules that store and transmit genetic information. They play a crucial role in all living organisms’ growth, development, and functioning. The two nucleic acid types are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), and they both have nucleotides as their building blocks.
What Are Nucleic Acids?
Nucleic acids are complex, naturally occurring biomolecules that hold an organism’s genetic information. They transmit hereditary traits from parents to offspring.
Living organisms also need nucleic acids to direct their growth and development. Nucleic acids enable protein synthesis, which is responsible for overall cell structure and function and entails cells creating protein from amino acids.
What Are the Building Blocks of Nucleic Acids?
They consist of numerous nucleotides chained together. Each nucleotide contains:
A sugar molecule: In DNA, this is deoxyribose, while in RNA, it’s ribose.
A phosphate group: A phosphorus atom bonded to four oxygen atoms.
One of four organic bases: Adenine (A), Thymine(T) in DNA or Uracil(U) in RNA, Guanine (G), and Cytosine(C). All these bases are nitrogenous.
The sequence of these four nitrogenous bases, along with the sugar and phosphate, forms a nucleic acid chain. The chain contains the instructions for an organism’s survival and functioning.
What Are Nucleic Acids Responsible For?
Nucleic acids are crucial for all living organisms as they carry the genetic code necessary for life. Doctors and scientists use nucleic acids to study, diagnose, and treat various genetic disorders. For example, DNA testing can identify inherited diseases or determine paternity.
Nucleic acids also play a significant role in protein synthesis. As mentioned earlier, proteins are essential for cell structure and function. They control nearly all cellular processes, including metabolism, respiration, growth, and immune responses.
Without the instructions provided by nucleic acids, proteins would not be produced, and life as we know it would not exist.
Additionally, nucleic acids have a critical role in cell signaling. They regulate gene expression, which involves turning genes on and off to control cellular functions. It allows cells to respond to their environment and maintain homeostasis.
What’s the Importance of Nucleotide Sequence?
Did you know that the pattern and sequence that nucleotides follow when forming a nucleic acid affects its function? Each combination of the four nitrogenous bases (A, T/U, G, and C) creates a unique genetic code that determines the production of specific proteins.
Even small changes in the sequence can significantly affect an organism’s traits or health. For example, a single mutation in the DNA sequence can lead to genetic disorders like cystic fibrosis or sickle cell anemia.
Moreover, studying the nucleotide sequence of different organisms allows scientists to understand their evolutionary relationships and track changes over time.
Nucleic acids are also essential in biotechnology. Scientists can manipulate and insert specific sequences of nucleotides into organisms to produce desired proteins or alter their genetic makeup.
For example, Advanced ChemTech specializes in peptide production. We’re behind a treasure trove of novel essentials like shielded amino acids, coupling reagents, fancy linkers, and resins. Our stash also includes rare amino acids and top-notch building blocks!
The principles of nucleotide sequencing inform many of our products, allowing us to create custom peptides for any commercial application. Our team of experts can synthesize, purify, and analyze peptide sequences with precision and efficiency.
Additionally, nucleic acids are useful in genetic engineering and gene therapy. It’s possible to manipulate their nucleotide sequences and transfer specific genes. Gene transfers help to treat genetic disorders or produce desirable proteins.
What Are the Two Types of Nucleic Acids?
As already mentioned, DNA and RNA are the two nucleic acid types. These two molecules differ in structure and function, but they share a common purpose: to store and transmit genetic information.
DNA (deoxyribonucleic acid) is typically a double-stranded molecule that stores hereditary information in all living organisms. It contains four nitrogenous bases;
Adenine (A).
Guanine (G).
Cytosine (C).
Thymine(T).
You can have one of the four organic bases pairing up and forming the rungs of the DNA ladder. The sequence of these bases determines an organism’s genetic traits.
RNA (ribonucleic acid), on the other hand, is a nucleic acid monomer. It’s generally single-stranded and consists of three main types
Messenger RNA (mRNA) carries genetic information from DNA to ribosomes for protein synthesis.
Ribosomal RNA (rRNA) forms part of the ribosome structure and helps translate mRNA into proteins.
Transfer RNA (tRNA): During protein synthesis, these nucleic acids use their anticodon sequence to match the codon sequence on mRNA and transfer amino acids to the ribosome.
These three RNA types work together to read and translate the genetic code stored in DNA into proteins, a process crucial for an organism’s survival and development.
DNA vs. RNA
While both are composed of nucleotides, DNA entails a double helix structure and two complementary strands, but RNA is a single-stranded monomer.
Another notable difference is the type of sugar present in each molecule. DNA contains deoxyribose sugar, while RNA contains ribose sugar. This slight difference in sugars also affects the stability and longevity of the two types of nucleic acids.
DNA is known for its exceptional stability, which makes it suitable for storing genetic information. On the other hand, RNA is less stable and more prone to mutations, making it better suited for carrying out short-term functions in protein synthesis.
Gene Expression
Gene expression entails coping or transcribing the genetic information in DNA into RNA. It enables organisms to produce essential proteins for growth and development.
Genetic engineering involves manipulating an organism’s DNA to express specific traits. Scientists use techniques like gene transfer to introduce foreign genes into an organism’s genome and alter its genetic makeup.
Final Thoughts on the Structure and Function of Nucleic Acids
In summary, nucleic acids are essential to all living organisms and are responsible for storing and transmitting genetic information. Composed of nucleotides, DNA and RNA have distinct structures and functions in the cell.
DNA serves as the blueprint for making proteins, while RNA plays an active role in protein synthesis. With advancements in genetic engineering, our understanding of these molecules and their functions continues to grow. Studying nucleic acid molecules can help us gain insights into genetic disorders and develop potential treatments. That’s why you need to know the difference between nucleic acids and amino acids.

Omar

3.0

(2)

Hello, the courses presented here are dedicated for school students, i.e Middle (Preparatory) and High (Secondary) levels, as well as students of higher (University) education who struggle in the following subjects: sciences, biology, and microbiology. The aim of these courses is to help the students master the foundational concepts in the mentioned subjects and eventually improve on an academic level.This is meant to be achieved through a combination of personalised instruction, interactive exercises, and real-world applications.

The targeted systems for this course: are the National system, American system, and College students.

Please don't hesitate to contact me :D

ابانوب

3.0

(2)

About me ✨
Hi — I’m Abanoub Ayad 👋. I come from a background in the cosmetics & pharmaceutical industries with 5 years’ experience, and I’m passionate about teaching chemistry. My biggest joy is turning the scary parts of chemistry into something clear, useful, and even fun for my students 🔬💡.

I’ve taught students across different curricula and levels, and I love helping learners build deep understanding and real exam confidence — not just memorization 📚✅.

What I teach 🧪
GCSE / IGCSE | A-Level (AS & A2) | IB | AP | American system (grades 7–12) | University-level General, Organic & Inorganic Chemistry

My lessons include 🎯
• Clear concept explanations — I make complex ideas simple.
• Worked examples + past-paper practice — real exam skills.
• Regular homework for reinforcement.
• Short quizzes at the end of each topic to check progress.
• Personalized study plans based on a diagnostic assessment.

Teaching style 🎓
Interactive, patient, and tailored. I use diagrams, mnemonics, and real-life examples to help memory and intuition. I also bring in data-driven methods (I use statistical tools when helpful) to track improvement and focus on weak spots 📈🧠.

Policies & what I don’t do 🚦
• I won’t complete exams or homework for you — I’ll teach you how to do them.
• I provide clear feedback and practice so you can succeed independently.

Why choose me? 🌟
I care about each student’s goals — whether that’s boosting grades, preparing for admissions, or building real scientific understanding. Book your first lesson and let’s make chemistry a subject you enjoy and succeed at! ☕🧪🙌

Khaled

3.0

(2)

I offer private science lessons for fourth grade students using a simple and engaging approach. I help students fully understand the curriculum, solve exercises, and prepare for exams. The explanations are in Arabic, with examples from everyday life to reinforce the information.
Using images and modern techniques in the explanation.

Mohamed

3.0

(2)

Are you ready to look at the world a little differently?
Biology isn’t just a textbook full of terms to memorize for a test—it’s the literal blueprint of everything around you. It’s the hidden chemistry in your morning coffee, the reason your muscles burn when you run, and the mind-blowing code written into your very DNA.
If you’ve ever found yourself wondering how life actually works, you’re in the right place.
Why Take This Course?
No More Boredom: We don't do passive listening here. Expect interactive 3D models, virtual labs, and real-world case studies (like dissecting the science behind disease outbreaks or gene editing).
Concepts Over Cramming: I don’t want you to just memorize definitions. I want you to understand the mechanisms. Once you see the big picture, the exams take care of themselves.
Tailored Support: Whether you are aiming for a perfect score on your advanced exams or just trying to survive your required science credit, I adapt my pacing to where you are at.

Zeyad

3.0

(2)

Biology is the study of living organisms and how they interact with the world around them. This Cambridge IGCSE/O Level Biology course is designed to help students build a strong understanding of key biological concepts while preparing confidently for exams.

Throughout the course, you’ll learn about cell structure, movement in and out of cells, enzymes, nutrition, human physiology, plant biology, reproduction, genetics, inheritance, ecology, and biotechnology. Lessons focus on explaining complex topics in a simple, engaging way using clear diagrams, real-life examples, and exam-style questions.

Whether you’re aiming to improve your understanding of biology, achieve top grades, or strengthen your foundation for further studies, this course provides step-by-step guidance, effective revision techniques, and plenty of practice to help you succeed in the Cambridge IGCSE/O Level Biology examinations.