1. Nature And Variety Life Flashcards
Are plants multi or unicellular
Multicellular (animals are also multicellular)
What are plant cell walls made of
Cellulose
What do plants store carbohydrates as
Starch or sucrose
Are animals multi or unicellular
Multicellular
What do animals often story carbohydrates as
Glycogen
What do animal cells not have?
Chloroplasts, vacuole, cell wall
How are fungi bodies organised
Into a mycelium
What are the thread- like structures in fungi called
Hyphae
What do hyphae contain
Many nuclei
What are fungi cell walls made of
Chitin
How do fungi feed
With saprotrophic nutrition
Saprotrophic nutrition def
Feed by extracellular secretion of digestive enzymes onto food material and absorption of the organic products
Example of fungi
Mucor
Fungi are what- celled
Can be multi and uni
What may fungi store carbohydrates as
Glycogen
What are protoctists
Microscopic single-celled organisms
Example of protoctist with features like an animal cell
Amoeba
Example of protoctist with features like a plant cell
Chlorella
Protoctist pathogenic example
Plasmodium
What disease does plasmodium cause
Malaria
Bacteria are what-celled
Single-celled
What do bacteria not have
Nucleus and cell wall
What do bacteria have instead of a nucleus
Circular chromosome of DNA
What do most bacteria feed off of
Other living or dead organisms
What bacteria is used to make yogurt
Lactobacillus bulgaricus
What bacteria causes pneumonia
Pneumococcus
What is a pathogen
An organism which causes disease
Are viruses living organisms
No they are parasites
What are viruses smaller then
Bacteria
Where can viruses only reproduce
Inside living cells
What do viruses infect
Every type of living organism
Viruses have a what coat
Protein coat
What do viruses not have
No cellular structure
What do viruses contain one type of
Nucleic acid
What are the nucleic acids that viruses could contain
DNA or RNA
Example of a virus
Tobacco mosaic viruses
What virus causes flu
Influenza
What does the HIV virus cause
AIDS
Where do Amoeba live
In pond water
Respiration word equation
Glucose+oxygen=carbon dioxide+water
Photosynthesis word equation
Carbon dioxide+water->glucose+oxygen
Example of control
Body temperature
Function of nucleus
The cell’s control centre and contains genetic information
Function of cytoplasm
Medium for chemical reactions
Function of cell membrane
To control the entry and exit of molecules into and out of the cell
Cell wall function
Provides strength and protection
Mitochondria function
Where respiration occurs, releases energy
Ribosome function
Tiny structures where protein synthesis occurs
Vacuole function
Contains cell sap
What are parasites
They depend on other organisms to grow and reproduce
Bacteria cell diff
No nucleus, no mitochondria, flagellum, dna loop, plasmid, slime capsule, cell wall
