Cerrar
Animal cells and plant cells:
Nucleas
Animal and plant cells:
Cytoplasm
Animal cells and plant cells:
Cell membrane
Animal and plant cells:
Mitochondria
Animal and plant cells:
Ribosomes
Plant cells:
Cell wall
Plant cells (not all):
Chloroplasts
Plant cells (not all):
Permanent vacoule
Bacteria
Bacterial cells
Bacteria cell uses
Yeast
Yeast structure
Fat cells
Cone cells (human eye)
Root hair cells
Sperm cells
Diffusion
Rates of diffusion
diffusion in living organisms
Tissues
Organs
Organ systems
Adaptations for exchange
Photosynthesis
Process of photosynthesis
Uses of glucose
Leaf adaptations
Limiting factors:
Light
Limiting factors:
Temperature
Limiting factors:
Carbon dioxide
Uses of glucose explained
Fats and oils
Starch for storage
Greenhouse gardens
Controlling a crops environment
Control environment through electricity
Consequences of greenhouses
Factors affecting living organisms:
Temperature
Factors affecting living organisms:
Nutrients
Factors affecting living organisms:
Amount of light
Factors affecting living organisms:
Availability of water
Factors affecting living organisms:
Availability of oxygen and carbon dioxide
Quadrats
Counting along a transect
Reproducible, valid data
Controlling variables
Protein molecules
Controlling the rate of a reaction
Enzymes - biological catalysts
Enzyme functions
Effect of temperature on enzyme action
Effect of pH on enzyme activity
Importance of enzymes
Digesting carbohydrates
Digesting proteins
Digesting fats
Speeding up digestion:
Changing pH in the gut
Speeding up digestion:
Changing pH in small intestine
Speeding up digestion:
Altering the surface area
Enzymes in the home
Enzymes in industry
Advantages and disadvantages of using enzymes
Pros and cons of biological detergents
Enzymes in medicine:
To diagnose disease
Enzymes in medicine:
To diagnose and control disease
Enzymes in medicine:
To cure diseases
Aerobic Respiration
Effect of exercise on the body
Anaerobic Respiration
Cell Division and Growth
Cell division in sexual reproduction
Meiosis
Stem Cells
Mendal to DNA
Inheritance in Action
Genetic terms and models
Inherited conditions in humans
Genetic disorders
Stem cells and embryos- science and ethics
Origins of life on Earth
Exploring the fossil evidence
More about extinction
Ideas on why dinosaurs became extinct
Isolation and evolution of species
Speciation
