Unit Two
Unit Two Biology Exam-AQA
- Created by: Flora
- Created on: 17-12-12 18:57
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- Biology
- Cells and Simple Cell Transport
- Animal Cells
- Nucleus
- Cytoplasm
- Cell membrane
- Mitochondria
- Ribosomes
- Plant Cells
- Chloroplast
- Vacuole
- Bacterial and yeast cells
- Bacterial: cytoplasm, membrane, cell wall, NO distinct nucleus
- Yeast: nucleus, cytoplasm, membrane, cell wall
- Diffusion
- How it is affected by concentration
- Spreading of the particles of a gas, or of any substance in solution, resulting in a net movement from a region where they are of a higher concentration to a region with a lower concentration
- How it is used in cells, i.e. oxygen
- Animal Cells
- Tissues, Organs and Organ Systems
- Animal Organs
- Cells differentiate
- Understanding of size and scale
- Tissue
- Muscular tissue
- Glandular tissue
- Epithelial tissue
- Made up of Tissues
- Made up of Tissues
- Organ Systems
- Digestive System
- Glands
- Stomach
- Small intestine
- Liver
- Large intestine
- Digestive System
- Should be able to recognise on a diagram
- Plant Organs
- Stems
- Roots
- Leaves
- Details of internal structure
- Tissues
- Epidermal tissues
- Mesophyll
- Xylem and phloem
- Animal Organs
- Photosynthesis
- Carbon dioxide + Water => Glucose + Oxygen
- Be able to describe process
- Three affecting factors
- Glucose
- Starch
- Fat or oil
- Cellulose
- Proteins
- Need nitrate ions too
- Carbon dioxide + Water => Glucose + Oxygen
- Distribution of organisms
- Affecting factors
- Temperature
- Nutrients
- Light
- Water
- Oxygen
- Carbon dioxide
- Random sampling with quadrats
- Sampling along a transect
- Affecting factors
- The Functions and Uses of Proteins
- Proteins
- Amino acids
- Folded to produce a specific shape
- They act as...
- Structual components of tissues, e.g. muscles
- Hormones
- Antibodies
- Catalysts
- Enzymes
- Shape is VITAL
- pH has an affect
- Hydrochloric acid in stomach
- Bile
- DETAIL about digestive enzymes
- Amylase
- Protease
- Lipase
- Microorganisms
- At home and in industry examples
- Pressures and temperatures
- Enzymes
- Amino acids
- Enzymes
- Shape is VITAL
- pH has an affect
- Hydrochloric acid in stomach
- Bile
- DETAIL about digestive enzymes
- Amylase
- Protease
- Lipase
- Microorganisms
- At home and in industry examples
- Pressures and temperatures
- Proteins
- Respiration
- Aerobic
- Chemical reactions controlled by enzymes
- Glucose + Oxygen => Carbon Dioxide + Water + Energy
- Energy is used...
- To build larger molecules
- To contract muscles
- To maintain a steady body temperature
- In plants-be specific
- Heart rate increases
- Increased rate and depth of breathing
- Increase blood flow and this means...EXPAND
- Heart rate increases
- Increase blood flow and this means...EXPAND
- Glycogen
- Energy is used...
- Plants and animals
- Mitochondria
- Anaerobic
- Insufficient oxygen
- Incomplete breakdown of glucose
- Lactic acid
- Needs to be oxidised with carbon dioxide and water
- Oxygen debt
- Lactic acid
- Muscle fatigue
- Aerobic
- Cell Division and Inheritance
- Cell Division
- Chromosomes
- Contain genetic information
- Mitosis
- DETAIL
- Meiosis
- Genetic aspect of this
- Genetic diagram
- Genetic aspect of this
- Stem cells
- Chromosomes
- Genetic Variation
- Alleles from each parent
- Chromosomes
- Genes and characteristics
- A gene is a section of DNA
- Dominant and recessive
- DNA
- Structure
- Deoxyribo Nucleic Acid
- Unique, fingerprinting
- Genetic Disorders
- Polydactyl
- Extra fingers or toes
- Dominant
- Cystic Fibrosis
- Recessive
- Embryos can be screened
- Polydactyl
- Defintions
- Isolation
- Genetic Variation
- Natural Selection
- Speciation
- Cell Division
- Speciation
- Evidence for early life forms comes from fossils
- Ways they are formed
- Explain
- Ways they are formed
- Reasons for extinction
- Evidence for early life forms comes from fossils
- Cells and Simple Cell Transport
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