General Biology Study Notes, Questions and Answers
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Aquatic Plant Ion Uptake Process
With a reason name the process by which Sodium ion could have been taken up by this plant.If a plant were exposed to a metabolic poison, which ion would stop being taken in by the plant.
Grouping Organisms in Phylum Arthropoda
Two characteristics are employed to categorize organisms in the phylum Arthropoda into various classes.Name them.
Maggots, Euglena, and Chlamydomonas Light Behavior
What happens when you shine light on maggots, Euglena, and Chlamydomonas, and why do they behave differently in response to it?
Neuron Types, Parts and Impulse Direction
Identify the neuron, the parts labeled A and B and on the diagram indicate the direction of movement of a nerve impulse along the neuron.
Analysis of Urine Sample with Benedict's Solution
What was present in the urine sample.What was the student's assessment of the individual's health status based on the observation.
Define the term 'vaccine'.
Immunizable Diseases in Kenya
Besides poliomyelitis,mention another immunizable disease in Kenya.
Poliomyelitis Virus Effects on the Human Body
Name the part of human body where the poliomyelitis virus affect.
Anaerobic Respiration Products in Industry
What is the essential product of anaerobic respiration in the brewing and bread making industries.
Hierarchy of Taxonomy
List the top 4 taxonomic ranks in order, starting from the highest level.
Function of the Condenser
State the purpose of the condenser in a light microscope.
Function of the Diaphragm
State the purpose of the diaphragm in a light microscope.
Function of the Coarse Adjustment Knob
State the purpose of the coarse adjustment knob in a light microscope.
Factors that Affect Active Transpiration
State 4 factors that affect active transpiration.
Active Transport Definition
What is active transport.
Palisade Cell Adaptations for Efficient Function
State the adaptations of palisade cells that enable them to carry out their function, and how do these adaptations work.
Functions of the Herbivore Dental Gap (Diastema)
Name the gap between incisors and premolars in some herbivores and state its function.
Homodont vs Heterodont Terms Distinction
State the difference between the terms 'homodont' and 'heterodont'.
Factor Investigated in Photosynthesis Experiment
What was the specific factor under
investigation in the experiment depicted in the provided image.
Human Adult Dental Formula
Calculate the overall number of teeth based on the dental formula for an adult human.
Human Adult Dental Formula
Write the dental formula of an adult human.
Human Teeth Diseases
Name 2 diseases that affect human teeth.
Functions of the Colon in Digestion
List 2 roles the colon plays in the process of digestion.
Adaptations of the Ileum for Effective Function
Describe the adaptations of the ileum that enable it to carry out its functions.
Vitamin B1 Deficiency Disease
What is the deficiency disease that results from a lack of Vitamin B1.
Vitamin D Deficiency Disease
What is the deficiency disease that results from a lack of Vitamin D.
Vitamin A Deficiency Disease
What is the deficiency disease that results from a lack of Vitamin A.
The Kingdom of Yeast
To which kingdom do organisms known as Yeast belong?
The Kingdom of Paramecium
To which kingdom do organisms known as Paramecium belong.
The Kingdom of Bacteria
To which kingdom do organisms known as Bacteria belong?
Example: Onion Epidermal Cell Length Calculation
How long is each onion skin cell when we look at it through a microscope. See a practical example on calculating the length of each epidermal cell in micrometers.
The Taxonomic Unit with the Least Organisms
Identify the taxonomic category containing the lowest number of organisms.
The Taxonomic Unit with the Most Organisms
Identify the taxonomic category containing the highest number of organisms.
Carbohydrate Synthesis Organelles Within Cells
Name the organelles in a cell that are responsible for carbohydrate synthesis.
Organelles for Energy Production
Which cellular organelles are involved in the generation of energy.
Organelles Responsible for Cell Secretion Packaging
Which organelles in a cell packages cell secretions.
Organelle Responsible for Ribosome Synthesis
Name the cellular organelles that are responsible for the production of ribosomes.
Surface Area to Volume Ratio Diffusion Rate in Organisms
Explain on how can the concept of surface area to volume ratio be applied to clarify the rate of diffusion in organisms.
Testing for Reducing Sugar in Food Procedure
Explain the procedure for conducting tests to detect the presence of reducing sugar in food.
Testing for Starch in Food Procedure
Explain the procedure for conducting tests to detect the presence of starch in food.
Criteria for Grouping Organisms in the Same Species
Highlight 2 considerations when classifying organisms as belonging to the same species.
The Sterility of Mules Explanation
Why is a mule, which results from the mating of a horse and a donkey, unable to reproduce.
Magnification Formula for Light Microscope
What is the formula for calculating magnification when using a light microscope.
Magnification Formula for Hand Lens and Naked Eye
What is the equation to determine magnification when employing a hand lens or observing with the naked eye.
Function of Monosaccharides in Organisms
What primary role do monosaccharides serve in organisms.
Properties of Monosaccharide
Explore the common properties of monosaccharide.
Compensation Point Definition
What is compensation point.
Factors Affecting the Rate of Diffusion
List any 3 elements/factors that influence the speed/rate of diffusion.
Organ Systems in Organisms Definition
What does the term 'organ systems' refer to in organisms.
Role of Root Hairs in Plants
State the role of root hairs in plants.
The Significance of Stomata in Leaves
What is the importance of stomata for a leaf.
The Significance of Air Spaces in Leaves
Why is the presence of air spaces important for leaves. Explain.
The Significance of Thin Leaf Structure
Explain why the thinness of a leaf is important.
Importance of Nucleic Acid in Organisms
Explain why nucleic acids are important for organisms.
Plant Experiment Setup and Goals
What was the purpose of the plant experiment, and what's one thing that could change how it works.
Enzyme Response to Lowered Temperatures
What are the effects on an enzyme molecule when the temperature drops below 10°C.
Enzyme Response to Elevated Temperatures
What is denaturation? What happens to an enzyme molecule when the temperature exceeds 40°C.
Enzyme Substrate Binding Sites
What are the parts of an enzyme where molecules fit when they're working together in a chemical reaction.
Factors Affecting Enzyme Activities
Name 3 things can change how enzymes work.
Visking Tubing Potassium Permanganate Diffusion Experiment
A piece of Visking tubing filled with potassium permanganate was dipped in distilled water for 2 hours. The water turned purple. This investigated a physiological process. Explain why.
Red Blood Cell Wrinkling Process
Name the term used to describe the process in which red blood cells undergo wrinkling due to water loss when placed in a hypertonic solution.
Process of Water Splitting in Photosynthesis
What is the name of the process in photosynthesis where light causes the splitting of water molecules.
Genotype and Phenotype Differentiation
What are genotype and phenotype. Differentiate between genotype and phenotype.
Monohybrid Inheritance Definition
Define the term 'Monohybrid Inheritance'.
Function of Coleoptile in Germination
What is the function of coleoptile in germinating maize grain.
Examples of Harmful Effects of Insects
Name 2 harmful effects of insects.
Advantages of Metamorphosis in Insects
What is metamorphosis. Name 2 benefits of metamorphosis in the lives of insects.
Fruit Dispersal Agent Identification
Identify the agent responsible for dispersing the fruit.
Granum Adaptation to Photosynthesis
How is the granum adapted to perform its role in photosynthesis.
Roles of Luteinizing Hormone in Males
What are the roles of Luteinizing Hormone in males.
Roles of Follicle Stimulating Hormone in Males
What are the roles of Follicle Stimulating Hormone in males.
Cytology vs Entomology Comparison
Define cytology and entomology.Differentiate between Cytology and Entomology.
Significance of Protandry and Protogyny Structural Features
What role do the structural features of protandry and protogyny play in the context of flowering.
Function of Centrioles in Cell Division
Name the function of centrioles in cell division.
Function of Spindle Fibres in Cell Division
Name the function of spindle fibres in cell division.
Why Mammal's Ears Change Color in the Cold
On a cold day, a small mammal's usually pink ears turn a lighter shade of pink. Why does this happen.
Calculating Body Weight from Heart Size in Relation to Organism Size
Body size and heart size are linked, with the heart typically comprising 0.59% of an organism's total body weight. If a healthy adult's heart weighs 0.4838 kg, what is their total body weight.
Coronary Artery Branch Point Vessel
Identify the blood vessel from which the coronary artery branches.
Blood Backflow Prevention during Ventricular Pressure Decrease
Name the structure responsible for preventing backflow of blood when ventricular pressure decreases.
Animal Dental Formula, Nutrition Mode
Provide its dental formula.Identify the mode of nutrition of the organism based on its dental formula.Give a reason for your answer in (b) above.
Nutrients Passed from Green Grass to Herbivores
What are 3 types of food that plant-eating(herbivores) animals get when they eat green grass in bright sunlight during the day.
Feedback Mechanism and Hormone R
Identify the feedback mechanism labeled B in the diagram.Identify Hormone R.
Microscope Coarse Adjustment Function
Explain the function of the coarse adjustment knob on a light microscope.
Factors Contributing to Changes in Fish Population
Provide explanations for 2 factors that could have contributed to the changes in fish populations.
Population Estimation Method, Calculation and Limitations
Identify the method of population estimation shown and state its limitations.Estimate the population of the beetles.
Carbon Dioxide Levels Comparison in Blood
Based on the table given, which blood, either entering or leaving the lungs, has a higher carbon dioxide content.What accounts for the disparity in oxygen and carbon (IV) oxide content between blood entering the lungs and blood leaving the lungs.
Significance of Photolysis
What is photolysis.Name the significance of photolysis.
Locust Abdomen Vaseline Experiment Observation
After applying Vaseline to the abdomen of a locust, what were the anticipated outcomes ten minutes later.Explain the observed outcomes mentioned earlier.
Plant Identification and Habitat Adaptations
Provide the plant species and describe three ways it has adapted to its environment.
Exploring Mitosis in Onion Root Tips
Young onion root tip is ideal for examining the stages of mitosis,explain.
Causative Agent of Malaria
Name the causative agents of Malaria.
Causative Agent of Cholera
Name the causative agents of Cholera.
Aerobic vs Anaerobic Glucose Breakdown Difference
Why does breaking down glucose with oxygen give us more energy (2880 kJ) compared to when we break it down without oxygen (150 kJ).
Biology's Role in Solving Environmental Problems
State 4 environmental problems that can be solved by studying biology.
Functions of a Bait Trap
What is a Bait Trap? Read on the functions of a Bait Trap.
Functions of a Specimen bottle
What is a specimen bottle? Read on the functions of a specimen bottle.
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