Characteristics And Variety Of Living Organisms Flashcards
What do plants store carbohydrates as?
Starch or sucrose
How do animals store carbohydrates?
As glycogen
Which category of living organisms does this description come from? ‘Their body is organised into a mycelium made from thread like structures called hyphae’
Fungi
Which category has cell walls made of chitin?
Fungi
Which is saprotrophic nutrition
Feeding by extra cellular secretion of digestive enzymes onto food material and absorption of the organic products
How do fungi store carbohydrates?
As glycogen
An example of a fungi?
Mucor
What do bacteria have instead of a nucleus?
A circular chromosome of DNA
Example of bacteria?
Lactobacillus bulgaricus (yogurt and milk) pneumococcus (pathogen which causes pneumonia)
An example of Protoctists?
Plasmodium (causes malaria)
What is a virus?
Parasitic particles which reproduce inside living cells, which come in a variation of shapes and sizes with a protein coat and either DNA or RNA
Why are viruses not living organisms?
They can not reproduce on their own, have to be inside a host cell They can not respire Do not excrete Do not grow Much smaller, no cell wall, no cell membrane, there is a protein coat
What are the 8 life processes which are common to most living things?
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
Homeostasis
What is an enzyme?
a biological catalyst
