Category: A level biology
Stem Cells: The Building Blocks of Regeneration
In the intricate tapestry of life, there exists a remarkable group of cells with the potential to reshape our understanding of healing and tissue regeneration. These cells, known as stem cells, have captivated the imagination of scientists and medical researchers for decades due to their unique ability to transform into various cell types and contribute…
What is the role of hemoglobin?
The Crucial Role of Hemoglobin in Your Body Hemoglobin is an unsung hero in your body’s complex orchestra of functions. This iron-rich protein plays a central role in sustaining life by carrying oxygen to every cell. Let’s delve into the fascinating functions of hemoglobin and why it’s essential for your well-being. Oxygen Transport – Hemoglobin’s…
What is enzyme and characteristics?
Enzymes are biological catalysts that facilitate chemical reactions in living organisms. They are typically proteins, although some RNA molecules also have catalytic activity. Enzymes are essential for life because they speed up the reactions that are necessary for cells to function properly. Without enzymes, many biochemical reactions in the body would occur too slowly to…
Koala Has Human Like Fingerprints!
The discovery that koalas have human-like fingerprints was a surprising revelation that has captured the attention of the scientific community and the general public alike. In this essay, I will explain this discovery in detail, including the methods used by researchers to uncover this fact and the potential implications of this discovery for the field…
Plasma membrane
Delimiting membrane or boundary of all cells providing the characteristic shape to the cell. Structure ● Composed of approx. 7 nm thick phospholipid bilayer with hydrophilic heads facing outward from both sides into aqueous environment and hydrophobic tails facing inside the bilayer. ● A symmetrical the presence of proteins, floating in the bilayer imparts a…
Mutation
Mutation is a change in the DNA sequence of an organism’s genetic material. DNA, or deoxyribonucleic acid, is the molecule that carries the genetic instructions for the development and function of all living things. DNA is made up of four chemical bases, adenine (A), cytosine (C), guanine (G), and thymine (T), which are arranged in…
Chromosome
A chromosome is a structure found in cells that is made up of a long strand of DNA, which is the genetic material that contains the instructions for the development and function of all living organisms. Chromosomes are found in the nucleus of eukaryotic cells and play a crucial role in the cell cycle, replication,…
Type of Classification System Quiz
Welcome to our “Type of Classification System Quiz!” Are you ready to explore the diverse methods used to categorize everything from living organisms to data sets? Classification systems are essential tools that help us organize and make sense of the world around us. In this quiz, we’ll dive into various types of classification, from biological…
MCQ on Respiration in plant
Q1: Which organelle in plant cells is primarily responsible for cellular respiration? (A) Chloroplast (B) Mitochondrion (C) Vacuole (D) Nucleus Answer: (B) Mitochondrion Explanation: Mitochondria are the main sites of cellular respiration in plant cells, where ATP is produced. Q2: During respiration, what is the primary substrate used by plants to generate energy? (A) Oxygen…
Q & A ON REPRODUCTION IN ORGANISMS
Q1. What is life span? Ans: Life span is the period from birth to natural death of an organism. Q2. Define clone. Ans: The individuals that are morphologically and genetically similar to the parent are called clone. Q3. Mention the different means/ methods of asexual reproduction with example. Ans: Cell division – Protista, Monera Binary…
