biology revision

• What are the parts of an animal/plant/yeast cell that need to be labeled?


  Nucleus, cell surface membrane, cell wall
• What is the function of the nucleus in a cell?

  Controls cell activities and stores DNA
• What is the function of the cell surface membrane?

  Regulates entry and exit of substances
• What is the function of the cytoplasm?

  Site of metabolic reactions within the cell
• What is the function of mitochondria?

  Produces ATP through cellular respiration
• What is the definition of an organelle?

  A specialized structure within a cell
• What is the definition of a tissue?

  A group of similar cells performing a function
• What is the definition of an organ?

  A structure made of different tissues
• What is the definition of an organ system?

  A group of organs working together
• What is the definition of an organism?

  A living entity made of organ systems
• What is the order of size from smallest to largest: cell, tissue, organ, organ system, organism?

  Cell, tissue, organ, organ system, organism
• Which major organs should be labeled in the body?

  Brain, heart, lungs, liver, intestines
• What is the function of the brain?

  Controls body functions and processes information
• What is the function of the heart?

  Pumps blood throughout the body
• What is the function of the lungs?

  Facilitate gas exchange (oxygen and carbon dioxide)
• What is the function of the liver?

  Processes nutrients and detoxifies substances
• What is the function of the small intestine?

  Absorbs nutrients from digested food
• What is the function of the large intestine?

  Absorbs water and forms waste for excretion
• What is the function of the kidney?

  Filters blood and produces urine
• What is the function of the stomach?

  Digests food and breaks it down
• What is the function of the bladder?

  Stores urine before excretion
• What are the main organ systems of the body?

  Reproductive, Circulatory, Digestive, Breathing
• What is the function of the reproductive system?

  Produces offspring and hormones
• What is the function of the circulatory system?

  Pumps blood and transports nutrients
• What is the function of the digestive system?

  Breaks down food and absorbs nutrients
• What is the function of the breathing system?

  Facilitates gas exchange in the body
• What is the function of the skeletal system?

  Provides structure and support to the body
• What is the function of the excretory system?

  Removes waste products from the body
• What is the function of the nervous system?

  Controls body functions and responses
• What is the function of the immune system?

  Protects the body from pathogens
• What is the function of the endocrine system?

  Regulates body functions through hormones
• What is the definition of respiration?

  The process of converting glucose into energy
• What is the definition of aerobic respiration?

  Respiration that requires oxygen
• Where in a cell does aerobic respiration occur?

  In the mitochondria
• What is the word equation for aerobic respiration?

  Glucose + Oxygen → Carbon Dioxide + Water
• How can you investigate if yeast can respire different sugars?

  By testing glucose, maltose, and starch
• What are the independent, dependent, and controlled variables?

  Independent: sugar type; Dependent: yeast activity
• Why are controlled variables important?

  They ensure a fair test and reliable results
• How can we make an investigation reliable?

  By repeating experiments and controlling variables
• What method can be used to find the effect of temperature on bread dough?

  Measure dough volume at different temperatures