Explain the importance of materials in poultry farming and differentiate between tissue and gaseous respiration, stating three ways tissue respiration is important.

Question

Asked on May 25, 2026Biology

This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

Accepted Answer · 2026-05-25T08:32:42.826Z

Here are the solutions to the questions from the paper: 1. (a) Importance of materials in poultry: (i) Perches: Provide a place for birds to roost and rest*, which helps reduce stress and improve leg health. (ii) Litter: Absorbs moisture from droppings, keeps the coop dry and clean*, and provides insulation. (iii) Hover: Provides a source of warmth* for young chicks, essential for their survival and proper development. (iv) Footbath: Used for disinfection of footwear* before entering the poultry house, preventing the spread of diseases. (v) Glowing bulb: Provides light for extended feeding periods*, which can stimulate growth and egg production, and also offers warmth to chicks. 1. (b) Respiration: (i) Differentiate between tissue respiration and gaseous respiration:* Tissue respiration (or cellular respiration) is the biochemical process* occurring within cells where organic molecules are broken down to release energy (ATP). Gaseous respiration (or external respiration/breathing) is the physical process* of exchanging gases (oxygen and carbon dioxide) between an organism and its external environment. (ii) Three ways in which tissue respiration is important to organisms:* • It provides energy (ATP) for all metabolic activities, such as muscle contraction, nerve impulse transmission, and active transport. • It generates heat to maintain a constant body temperature in warm-blooded animals. • It produces intermediate compounds that can be used as building blocks for synthesizing other essential molecules. 1. (c) Pressure: (i) Define the term pressure: Pressure is defined as the force applied perpendicular to a surface per unit area* over which that force is distributed. (ii) Calculate the pressure exerted by the water on the diver:* Step 1: State the formula for hydrostatic pressure. P = gh where P is pressure, is density, g is acceleration due to gravity, and h is depth. Step 2: Substitute the given values into the formula. Given: = 1000 kg m^-3, g = 10 m s^-2, h = 15 m. P = 1000 kg m^-3 × 10 m s^-2 × 15 m Step 3: Calculate the pressure. P = 150000 Pa P = 1.5 × 10^5 Pa The pressure exerted by the water on the diver is 1.5 × 10^5 Pa. 1. (d) Atmospheric pollutant: (i) What is atmospheric pollutant? An atmospheric pollutant is any substance present in the atmosphere that has harmful or undesirable effects* on human health, animal life, vegetation, or materials. (ii) Three

Accepted Answer · 2026-05-25T08:32:42.826Z

Here are the solutions to the questions from the paper: 1. (a) Importance of materials in poultry: (i) Perches: Provide a place for birds to roost and rest*, which helps reduce stress and improve leg health. (ii) Litter: Absorbs moisture from droppings, keeps the coop dry and clean*, and provides insulation. (iii) Hover: Provides a source of warmth* for young chicks, essential for their survival and proper development. (iv) Footbath: Used for disinfection of footwear* before entering the poultry house, preventing the spread of diseases. (v) Glowing bulb: Provides light for extended feeding periods*, which can stimulate growth and egg production, and also offers warmth to chicks. 1. (b) Respiration: (i) Differentiate between tissue respiration and gaseous respiration:* Tissue respiration (or cellular respiration) is the biochemical process* occurring within cells where organic molecules are broken down to release energy (ATP). Gaseous respiration (or external respiration/breathing) is the physical process* of exchanging gases (oxygen and carbon dioxide) between an organism and its external environment. (ii) Three ways in which tissue respiration is important to organisms:* • It provides energy (ATP) for all metabolic activities, such as muscle contraction, nerve impulse transmission, and active transport. • It generates heat to maintain a constant body temperature in warm-blooded animals. • It produces intermediate compounds that can be used as building blocks for synthesizing other essential molecules. 1. (c) Pressure: (i) Define the term pressure: Pressure is defined as the force applied perpendicular to a surface per unit area* over which that force is distributed. (ii) Calculate the pressure exerted by the water on the diver:* Step 1: State the formula for hydrostatic pressure. P = gh where P is pressure, is density, g is acceleration due to gravity, and h is depth. Step 2: Substitute the given values into the formula. Given: = 1000 kg m^-3, g = 10 m s^-2, h = 15 m. P = 1000 kg m^-3 × 10 m s^-2 × 15 m Step 3: Calculate the pressure. P = 150000 Pa P = 1.5 × 10^5 Pa The pressure exerted by the water on the diver is 1.5 × 10^5 Pa. 1. (d) Atmospheric pollutant: (i) What is atmospheric pollutant? An atmospheric pollutant is any substance present in the atmosphere that has harmful or undesirable effects* on human health, animal life, vegetation, or materials. (ii) Three

Explain the importance of materials in poultry farming and differentiate between tissue and gaseous respiration, stating three ways tissue respiration is important.

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Explain the importance of materials in poultry farming and differentiate between tissue and gaseous respiration, stating three ways tissue respiration is important.

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