Characteristics Of Living Organisms Flashcards
Do animals have cell walls?
No, they only have a cell membrane
How do animals feed?
Eat other organisms
How do animals store carbohydrates?
As glycogen
Are plants single-called or multicellular?
Multicellular
What are plant cell walls made of?
Cellulose
How do plants feed?
Carry out photosynthesis
What do plants store carbohydrates as?
Starch or sucrose
What are fungi made of?
Mycelium or they’re single-celled
What is mycelium?
Made from thread like structures called hyphae
What do the hyphae contain?
Many nuclei
Do fungi have chloroplasts?
No
What are fungi cell wall made from?
Chitin
How does fungi feed?
By saprophytic nutrition
What is saprophytic nutrition?
When fungi secrete digestive enzymes outside their body onto the food material which break it down. Then it absorbs the small molecules left from digestion.
How do fungi store carbohydrates
As glycogen
Give 2 examples of fungi
Mucor
Yeast
Are protoctists single-celled or multicellular?
Single-celled
Some animals, some plants
Do protoctists have chloroplasts?
Single-celled plants do.
Single-celled animals don’t
Do protoctists have cell walls?
Only if plant-like
How do protoctists feed?
Plant-like = photosynthesis, Animal-like = eat other organisms
How to protoctists store carbohydrates?
Plant-like = starch Animal-like = glycogen
What are protoctists sensitive to?
Light, chemicals
Give examples of protoctists
Plant-like = chlorella
Animal-like = amoeba
Plasmodium: causes malaria
Are bacteria single-celled or multicellular
Single-celled
How do bacteria store DNA?
They don’t have a nucleus so the DNA is circular loops called plasmids
Do bacteria have chloroplasts?
No
What are bacteria cell walls made of?
Proteins and sugars
How do bacteria feed?
Eating living or dead organisms
Some photosynthesise
Give 2 examples of bacteria
Lactobacillus, pneumococcus
Are viruses single-celled or multicellular?
They’re NOT cells
What do viruses store genes as?
DNA or RNA
How do viruses store DNA?
The nucleic acid is RNA or DNA
What are viruses surrounded by?
A protein coat
How do viruses feed?
They are always parasitic, so can only reproduce inside living cells
Name 2 other facts about viruses
- The can effect every type of living organism
2. Have a wide range of shapes and sizes
Give 2 examples of viruses
Tobacco mosaic virus
Influenza virus
Are animals single called or multicellular?
Multicellular
