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Our Revision Notes and Textbook Answers will guide you through biology's core concepts, improving retention and saving time in exam preparation.

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Flashcard Deck:

Behavioral Neuroscience Module 3.3 Research Methods

This deck covers key research methods in behavioral neuroscience, including various brain imaging techniques and methods for manipulating brain activity.

LGS A-Level OCR Biology - Unit 3 - Mammalian Gas Exchange and Ventilation

It is not possible to expel all air from the lungs because the thorax cannot be completely flattened, leaving some air trapped inside. In addition, the trachea and bronchi are supported by cartilage, which prevents them from collapsing fully during exhalation.

LGS A-Level OCR Biology - Unit 2 - Cell Organisation and Stem Cells

A cell is the basic structural, functional, and biological unit of all living organisms. It is the smallest unit of life that can carry out all essential life processes. Cells can exist as independent units of life (as in unicellular organisms) or as part of multicellular organisms.

Behavioral Neuroscience Chapter 2 Test

This deck covers key concepts from Chapter 2 of Behavioral Neuroscience, focusing on neuronal communication, neurotransmitters, and synaptic processes.

LGS A-Level OCR Biology - Unit 2 - The Cell Cycle, Mitosis, Meiosis Part 4

This deck covers key concepts related to the cell cycle, mitosis, and meiosis, including definitions, processes, and the importance of genetic variation.

LGS A-Level OCR Biology - Unit 2 - The Cell Cycle, Mitosis, Meiosis Part 3

This deck covers key concepts from Unit 2 of the A-Level OCR Biology syllabus, focusing on the cell cycle, mitosis, and meiosis. It includes definitions, processes, and functions related to cellular reproduction and genetic variation.

LGS A-Level OCR Biology - Unit 2 - The Cell Cycle, Mitosis, Meiosis Part 2

This deck covers key concepts from Unit 2 of the OCR Biology A-Level syllabus, focusing on the cell cycle, mitosis, and meiosis. It includes definitions, processes, and functions related to cellular division.

LGS A-Level OCR Biology - Unit 2 - The Cell Cycle, Mitosis, Meiosis Part 1

This deck covers key concepts of the cell cycle, including phases of interphase, checkpoints, mitosis, meiosis, and related cellular structures.

LGS A-Level OCR Biology - Unit 2 - Diffusion/Osmosis/Active Transport Part 3

This deck covers key concepts and questions related to diffusion, osmosis, and active transport, as outlined in the LGS A-Level OCR Biology curriculum.

LGS A-Level OCR Biology - Unit 2 - Diffusion/Osmosis/Active Transport Part 1

This deck covers key concepts of diffusion, osmosis, and active transport as part of the LGS A-Level OCR Biology curriculum. It includes definitions, mechanisms, and factors affecting these processes.

LGS A-Level OCR Biology - Unit 2 - Enzymes

For a substrate to bind to an enzyme’s active site, it must have a complementary shape to fit the site and often opposite charges to allow ionic interactions. This ensures a precise enzyme-substrate complex forms for the reaction.

LGS A-Level OCR Biology - Unit 2 - Nucleic Acids and DNA Replication

DNA stands for deoxyribonucleic acid, the molecule that carries genetic information in all living organisms. It is made of nucleotides and provides the instructions for protein synthesis and inheritance.

LGS A-Level OCR Biology - Unit 2 - Lipids

The three main types of lipids are triglycerides, phospholipids, and sterols. Triglycerides act as energy stores, phospholipids form cell membranes, and sterols (like cholesterol) help regulate membrane fluidity and serve as precursors for hormones.

LGS A-Level OCR Biology - Unit 2 - Testing for Biological Molecules

The iodine test is used to detect starch in a sample. When iodine solution (in potassium iodide) is added, a positive result is shown by a blue-black colour change, while a negative result remains brown/orange.

LGS A-Level OCR Biology - Unit 2 - Cells and Organelles 2

Proteins are mainly synthesized at ribosomes on the rough endoplasmic reticulum (RER), where they are stored until processed and packaged by the Golgi apparatus. Ribosomes free in the cytoplasm make proteins that remain within the cytoplasm.

LGS A-Level OCR Biology - Unit 2 - Cells and Organelles

The two main types of organisms are prokaryotes and eukaryotes. Prokaryotes are simple, single-celled organisms without a nucleus, while eukaryotes have a true nucleus and membrane-bound organelles.

LGS A-Level OCR Biology - Unit 2: Microscopy

Magnification is the process of enlarging the appearance of a specimen compared to its actual size. It allows scientists to observe fine details of cells and structures that are not visible to the naked eye.

Biology NEET - XII: Chapter 16- Environmental Issues

The Environmental Protection Act was passed in 1986 by the Government of India. It serves as an umbrella legislation aimed at protecting and improving the environment, as well as preventing hazards to humans and other living beings.

Biology NEET - XII: Chapter 15- Biodiversity and Conservation

The term ecology was popularised by Edward Wilson, a renowned sociobiologist. He emphasized the importance of biodiversity and conservation, earning recognition as the “father of sociobiology.”

Biology NEET - XII: Chapter 13- Organisms and Populations

The study of interactions among organisms and between organisms and their physical environment is called Ecology. It helps us understand how living beings adapt, survive, and maintain balance within ecosystems.

Biology NEET - XII: Chapter 12- Biotechnology and its Application

Lepidopterans, such as the tobacco budworm and armyworm, are insect pests that attack and damage crop plants. They cause significant agricultural losses, making their control vital for food production.

Biology NEET - XII: Chapter 10- Microbes in human welfare

Toddy, a traditional drink popular in parts of southern India, is made by fermenting the sap obtained from palm trees such as Coconut palm or Date palm. The natural fermentation by microorganisms converts the sugars in the sap into alcohol, giving toddy its characteristic mildly alcoholic taste.

Biology NEET - XII: Chapter 9- Strategies of Enhancement in Food Production

About 70% of the world’s livestock population is found in China and India, making them the leading contributors to global animal husbandry. This large livestock base supports agriculture, dairy, meat, and other food production systems crucial for food security.

Biology NEET - XI: Chapter 14- Respiration Part 3

A set of flashcards covering key concepts in respiration, including respiratory quotient, glycolysis, fermentation, and the Krebs cycle.

Biology NEET - XI: Chapter 14- Respiration Part 1

This deck contains 25 flashcards covering key concepts related to respiration in germinating seeds, glycolysis, pentose phosphate pathway, oxidative decarboxylation, and the Krebs cycle.

Biology NEET - XI: Chapter 13- Photosynthesis Part 4

A set of 26 flashcards covering important concepts from the text, including key figures and processes in photosynthesis.

Biology NEET - XI: Chapter 13- Photosynthesis Part 3

This deck covers 25 important questions and answers about various aspects of photosynthesis in higher plants and algae, including the CAM pathway, photorespiration, Blackman's law of limiting factors, and the history of photosynthesis research.

Biology NEET - XI: Chapter 13- Photosynthesis Part 2

A flashcard deck covering the second part of the NEET-XI Biology chapter on Photosynthesis, focusing on the light reaction, electron transport chains, and types of photosynthetic pathways.

Biology NEET - XI: Chapter 13- Photosynthesis Part 1

This deck contains 25 flashcards covering the molecular formulas, structures, and roles of chlorophylls, carotenes, and phytol in photosynthesis.

Biology NEET - XI: Chapter 12- Mineral Nutrition Part 4

This flashcard deck covers key concepts from Chapter 12 on Mineral Nutrition, focusing on nitrogen fixation, enzyme activation, and nutrient roles in plants.

Biology NEET - XI: Chapter 12- Mineral Nutrition Part 3

This flashcard deck covers key concepts from Chapter 12 of the Biology NEET curriculum, focusing on mineral nutrition and related deficiencies, absorption processes, and nitrogen fixation.

Biology NEET - XI: Chapter 12- Mineral Nutrition Part 2

This flashcard deck covers key nutrient deficiencies in plants, their symptoms, and the affected plant species, as outlined in Chapter 12 of the NEET Biology curriculum.

Biology NEET - XI: Chapter 12- Mineral Nutrition Part 1

This deck covers key concepts from Chapter 12 of Biology NEET for Class XI, focusing on mineral nutrition in plants. It includes questions about essential nutrients, their roles, and the effects of deficiencies.

Biology NEET - XI: Chapter 11- Transport in Plants Part 3

This flashcard deck covers key concepts from Chapter 11 of Biology NEET for Class XI, focusing on the transport mechanisms in plants, including stomatal behavior, water potential, and nutrient transport.

Biology NEET - XI: Chapter 11- Transport in Plants Part 2

This deck covers key concepts from Chapter 11 of the NEET Biology syllabus, focusing on transport mechanisms in plants, including diffusion, osmosis, and transpiration.

Biology NEET - XI: Chapter 11- Transport in Plants Part 1

This deck covers key concepts from Chapter 11 of the Biology NEET syllabus, focusing on transport mechanisms in plants, including osmosis, turgor pressure, and plasmolysis.

Biology NEET - XI: Chapter 10 - Cell Cycle and Cell Division

This deck covers key concepts from the chapter on cell cycle and cell division, including phases of the cell cycle, mitosis, meiosis, and related cellular structures.

Biology NEET - XI: Chapter 9- Biomolecules Part 4

This deck covers key concepts from Chapter 9 of the Biology NEET syllabus, focusing on biomolecules and enzyme inhibition.

Biology NEET - XI: Chapter 9- Biomolecules Part 2

This flashcard deck covers key concepts from Chapter 9 on Biomolecules, focusing on lipids, fatty acids, and carbohydrates. It includes questions on the structure and function of biomolecules, as well as specific examples and properties.

Biology NEET - XI: Chapter 9- Biomolecules Part 1

This deck covers key concepts and facts about biomolecules, focusing on the most abundant molecules, metabolites, amino acids, and protein structures relevant to NEET Biology Chapter 9.

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