WAEC Biology 2024 Questions And Answers Expo

The West African Examination Council (WAEC) Has Scheduled The WAEC Biology 2024 Questions And Answers Paper To Take Place on 23rd May, 2024.

This brings the attention of candidates writing the exam in to searching for WAEC Biology 2024 Questions And Answers, WAEC Biology Expo 2024, WAEC Biology Questions 2024, WAEC Biology Answer 2024 and etc.

WAEC Biology 2024 Questions And Answers

In this section, you will read the steps and requirements needed for you to get Waec Biology 2024 Questions And Answers before exam.

WAEC Biology 2024 Paper is Categorized in to 3 parts:

  • WAEC Biology Essay 2024
  • WAEC Biology Objective 2024
  • WAEC Biology Practical 2024

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WAEC Biology 2024 Questions And Answers Expo

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2024 WAEC EXPO WAEC Biology 2024 Questions And Answers (Paper 1 & 2)
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WAEC Biology Expo 2024

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Area of concentration for biology waec 2024

  1. Concept of Living
  2. Forms in which living cells exist
  3. Cell structure and functions of cell components
  4. The Cell and its environment:
  5. Physical and Biophysical processes
  6. Properties and functions of the living cell
  7. Tissues and supporting systems
  8. Hormonal Coordination
  9. Nervous Coordination
  10. Sense Organs: Eye and Ear
  11. Reproductive systems in mammals, insects, and flowering plants
  12. Classification
  13. Organization of life
  14. Transport System
  15. Respiratory System
  16. Excretory Systems and Mechanisms
  17. Regulation of Internal Environment (Homeostasis)
  18. Basic Ecological Conceptsic Ecological concepts
  19. Simple Measurement of Ecological Factors
  20. Food webs and trophic levels
  21. Ecological Management.
  22. Adaptation For Survival And Evolution
  23. Behavioral adaptations in social animals
  24. Evolution: evidence and theories
  25. Biology Of Heredity (Genetics)
  26. Genetic terminologies
  27. Transmission and expression of characteristics
  28. Chromosomes and heredity
  29. Probability in genetics
  30. Linkage, sex determination, and sex-linked characters
  31. Application of genetics in agriculture and medicine
  32. Plant And Animal Nutrition
  33. Plant Nutrition
  34. Animal Nutrition
  35. Adaptation For Survival And Evolution
  36. Behavioral adaptations in social animals
  37. Evolution: evidence and theories
  38. Conservation Of Natural Resources
  39. Soil, water, wildlife, forest, and minerals conservation
  40. Variation In Population
  41. Morphological variations
  42. Physiological variations.

WAEC Biology 2024 Questions And Answers Expo

WAEC BIOLOGY QUESTIONS 2024

(1ai)
Glomerulus:
(PICK ANY ONE)
(i) It filters blood to form glomerular filtrate.
(ii) It removes waste products and excess substances from the bloodstream.
(iii) It initiates the urine formation process by allowing water and small molecules to pass through while retaining larger molecules like proteins.

(1aii)
Bowman’s capsule:
(PICK ANY ONE)
(i) It collects the filtrate produced by the glomerulus.
(ii) It forms primary urine by capturing the filtrate and directing it into the nephron.
(iii) It serves as a funnel, guiding the filtrate into the proximal convoluted tubule for further processing.

(1aiii)
Proximal convoluted tubule:
(PICK ANY ONE)
(i) It reabsorbs water, ions, and nutrients from the filtrate back into the bloodstream.
(ii) It plays a crucial role in secreting waste products such as hydrogen ions and ammonia into the tubular fluid.
(iii) It maintains pH balance by selectively reabsorbing bicarbonate ions and secreting hydrogen ions.

(1aiv)
Distal convoluted tubule:
(PICK ANY ONE)
(i) It reabsorbs sodium and water, thus playing a key role in regulating blood pressure and fluid balance.
(ii) It secretes potassium and hydrogen ions, which helps in maintaining electrolyte and acid-base balance.
(iii) It also regulates calcium and phosphate levels in the blood, contributing to bone health and metabolic functions.

(1b)
|ORGANISM | Structure.. |..Form in which|

|Paramecium|Contractile vacuole|Liquid (water)

|Flatworm |Flame cells| Ammonia|

|Earthworm|Nephridia | Urea|

|Cockroach|Malpighian tubules|Uric acid|

|Human | Kidneys| Liquid(urine)|

|Plant | Stomatal pore| Gaseous (water vapor, oxygen, carbon dioxide

(1c)
(PICK ANY FIVE)
(i) Oxygen
(ii) Carbon dioxide
(iii) Water vapor
(iv) Resins
(v) gums
(vi) Latex
(vii) Tannins
(viii) Essential oils

(2ai)
-Mouth-
(PICK ANY ONE)
(i) Chewing and breaking down the food
(ii) Producing saliva to moisten and lubricate the food
(iii) Initiating the digestive process through enzymatic action

(2aii)
-Skin-
(PICK ANY ONE)
(i) Regulating body temperature through sweating
(ii) Excreting waste products like urea and lactic acid
(iii) Absorbing certain substances through the skin

(2aiii)
-Tongue-
(PICK ANY ONE)
(i) Helping with chewing and mixing the food with saliva
(ii) Providing taste sensation and identifying the taste of the food
(iii) Assisting in the swallowing process

(2aiv)
-Kidney-
(PICK ANY ONE)
(i) Filtering the blood and removing waste products
(ii) Regulating the balance of water, salts, and minerals in the body
(iii) Producing urine for excretion

(2av)
-Stomach-
(PICK ANY ONE)
(i) Storing and breaking down the food through mechanical and chemical processes
(ii) Producing gastric acid and enzymes to aid in digestion
(iii) Mixing the food with digestive juices

(2avi)
-Small Intestine-
(PICK ANY ONE)
(i) Absorbing the majority of nutrients from the digested food
(ii) Producing enzymes to further break down the food
(iii) Transporting the digested nutrients to the bloodstream

(2avii)
-Large Intestine-
(PICK ANY ONE)
(i) Absorbing water from the remaining undigested food
(ii) Storing and compacting the waste material
(iii) Eliminating the waste products from the body

(2aviii)
-Liver-
(PICK ANY ONE)
(i) Producing bile to aid in the digestion and absorption of fats
(ii) Metabolizing and detoxifying substances in the body
(iii) Regulating blood sugar levels and storing excess energy

(2b)
(PICK ANY THREE)
(i) Mouth (saliva)
(ii) Stomach (gastric enzymes)
(iii) Small Intestine (pancreatic and intestinal enzymes)
(iv) Liver (bile)

(2c)
(PICK ANY THREE)
(i) Amylase (breaks down carbohydrates)
(ii) Lipase (breaks down fats)
(iii) Protease (breaks down proteins)
(iv) Cellulase (breaks down cellulose in cassava)

(2d)
(PICK ANY TWO)
(i) Glucose
(ii) Fatty acids and glycerol
(iii) Amino acids
(iv) Minerals and vitamins

(2ei)
(PICK ANY ONE)
(i) Increased blood pressure
(ii) Retention of water in the body, leading to edema

(2eii)
(PICK ANY THREE)
(i) Provides a good source of carbohydrates from the cassava
(ii) Provides protein from the groundnut soup
(iii) Supplies essential minerals and vitamins
(iv) Helps to maintain body temperature through sweating
(v) Satisfies hunger and provides energy