Cell structure Flashcards
Define an Oregon and an organ system
And Oregon is a group of tissues
An organ system is a group of tissues working together to carry out the same function
Two organ systems found in animals
Digestive and nervous
Explain the term tissue culture
Growth of cells on medium
Two conditions necessary for a successful tissue culture
Sterile conditions and hormones
Two applications of tissue culture
Skin graphs or cancer research
Tissue meaning
A group of cells with the same function
Two types of animal tissue
Muscle or nervous
State how each of these tissue types are adapted to carry out their function
Muscles contract and relax
Nervous sends electrical impulses around the body
Explain the relationship between tissues and organs
An organ is a group of tissues
Name one organ found in plants
Leafs
Define an organ system and name Annie one organ system found in animals
A group of organs that work together to carry out the same function
Nervous system
Explain cell and Organelles
Smallest Unit that displays characteristics of life
Organelle carries out specific function
Name the organelle on which amino acids are Assembled to form proteins
Ribosomes
Dermal tissue function and where It is found
Protection
Outer covering
Ground tissue Function and where It is found
Food storage
Cortex
Give a roll of a named mineral other than calcium which is required by plants
Magnesium
 It helps in maintaining the ribosome structure.
Name the metallic elements present in haemoglobin
Iron
Two reasons why water is required by living organisms
Solvent and maintain temperature
Which type of food by a molecule may be identified by the use of Benedicks or felling solutions
Reducing sugar
Name the molecules labelled a and b
Protein and lipid
G
Molecules can move through cell membranes by various processes name to such processes
Osmosis or diffusion
Suggest a reason why the organelle involved in aerobic respiration is found in different amounts in different cells
Sells any difference amount of energy
What term is used to describe organisms whose cells contain a nucleus
Eukaryotes
What term is just used to describe an organism that doesn’t have a nuclei
Prokaryotes