Form 4 Term 1 Cells Flashcards
Cell
The basic unit of structure and function for all living things
Tissue
A groups of similar cells that perform a function
Eg skin tissue
Organ
Structure that is composed of tissue
Organ system
Group of organs to at work together to perform a function
Organism
A living thing
Order of level of organisation from least complex to most complex
Cell
Tissue
Organ
Organ system
Organisms
7 processes for all living things
MRS GREN
MRS GREN
What are the 7 processes for all living organisms ??
MOVEMENT - change position or place
RESPIRATION chemical reaction uses oxygen to release energy
SENSITIVITY - sense changes and respond
GROWTH - permanent increase in size
REPRODUCTION - making more of the same organisms
EXCRETION - removal of toxic substances and wAste from an organisms
NUTRITION-process where nutrients are broken down and used for energy Growth and repair
Biotic factors
Predation
Competition
Disease
Abiotic factors
NON LIVING
Moisture Temperature Weather Altitude Amount of sunlight PH of soil
What is aerobic respiration?
Breakdown of glucose with oxygen to release energy
Glucose and oxygen = carbon dioxide and water and energy
What is photosynthesis ?
Where light energy is used to make glucose usually in plants
Equation
Carbon dioxide and water = glucose and oxygen
Carbon dioxide and water in photosynthesis make what?
Glucose and oxygen
In aerobic respiration what do glucose and oxygen make?
Carbon dioxide and water and energy !
Do plants carry out respiration and photosynthesis ?
YES
