P1 - 1.1 Cell Structure Flashcards
Cell Biology
What are the 2 main categories of cells
Eukaryotic
Prokaryotic
Give 2 examples of eukaryotic cells
Animal cell
Plant cell
Give an example of a prokaryotic cell
Bacteria cell
Sort these cells into eukaryotic and prokaryotic
Animal cell
Bacteria cell
Plant cell
Prokaryotic: bacteria cell
Eukaryotic: animal cell, plant cell
Draw and label an animal cell
Must contain:
Nucleus
Ribosomes
Mitochondria
Cell membrane
Cytoplasm
Draw and label a plant cell
Must contain:
Cell wall
Cell membrane
Cytoplasm
Permanent vacuole
Nucleus
Mitochondria
Ribosomes
Chloroplasts
Draw and label a bacteria cell
Must contain:
Flagella
Plasmid
Cell wall
Cell membrane
Ribosomes
Circular strand of DNA
What are cells
Cells are the building blocks of life
What is the definition of cells
The smallest unit of life that can replicate independently
How do animal and plant cells replicate (in numbers)
1 - 2 - 4
True or false:
Each individual bacteria cell is a whole organism
True
True or false:
Each individual animal cell is a whole organism
False
True or false:
Each individual plant cell is a whole organism
False
How do bacteria cells replicate (in numbers)
1 - 2 - 4
(Also asexual reproduction)
What type of reproduction do animal cells undergo
Sexual reproduction
What type of reproduction do plant cells undergo
Sexual reproduction
What type of reproduction do bacteria cells undergo
Asexual reproduction
Are animal cells multicellular or unicellular
Multicellular
Are plant cells multicellular or unicellular
Multicellular
Are bacteria cells multicellular or unicellular
Unicellular
Is multicellular eukaryotic or prokaryotic
Eukaryotic
Is unicellular eukaryotic or prokaryotic
Prokaryotic
Why do animal and plant cells replicate
To grow
To replace dead cells
How many types of cells do humans have
Hundreds of
How many cells does an adult have
over 40 trillion
What are sub-cellular structures
Structures found inside a cell
Etc. nucleus, ribosomes, chloroplasts
What is another name for sub-cellular structures
Organelles
What is the role of the cell membrane
To control what substances pass in and out of the cell
What is the role of the nucleus
Contains the genetic material/ DNA for the cell and therefore has overall control of the cell
What is the role of cytoplasm
A jelly like substance that fills the cell acting as a place for all other sub-cellular structures to sit in
Where chemical reactions take place
What is the role of mitochondria
Provides the cells with the energy they need to function
- breaks down sugars (glucose) in a process called aerobic respiration releasing energy for cell to use
What is the role of Ribosomes
Site of protein synthesis
Where proteins are made
What sub-cellular structures do both animal and plant cells have in common?
- cell membrane
- nucleus
- cytoplasm
- mitochondria
- ribosomes
What is the role of the cell wall
- rigid cell walls
- made up of cellulose
Cellulose is really strong and provides support and structure to the cell to prevent it from shrinking or bursting
What is the role of a permanent vacuole
A bug sack containing cell sap which is a mixture of sugars, salts and water that the cell can use when it needs to
What is the role of chloroplasts
- has a green pigment called chlorophyll
Used for photosynthesis
Carbon dioxide + water -> glucose + oxygen
What colour is chlorophyll
Green
Where is chlorophyll found
Inside chloroplasts it is the green pigment called chlorophyll
What does chlorophyll do
Absorbs the energy from sunlight that is needed for photosynthesis
True or False:
Bacteria cells have a nucleus
False
They have circular strands of DNA
True or False:
Bacteria cells do not have a nucleus
True
They have circular strands of DNA
What extra gene can plasmids have
They can be antibiotic resistant
What names does the circular strand of DNA have in a bacteria cell
- circular chromosome
Nucleoid
What does the circular strand of DNA have
Genes they need to survive and reproduce
What is the function of the flagella in a bacteria cell
Thread like structure that rotate to propel the bacteria to give the cell movement
In a plant, animal and bacteria cells state whether you can find:
Cell wall
Bacteria cell
Plant cell
In a plant, animal and bacteria cells state whether you can find:
Cell membrane
Animal cell
Plant cell
Bacteria cell
In a plant, animal and bacteria cells state whether you can find:
Cytoplasm
Animal cell
Bacteria cell
Plant cell
In a plant, animal and bacteria cells state whether you can find:
Mitochondria
Animal cell
Plant cell
In a plant, animal and bacteria cells state whether you can find:
Ribosomes
Animal cell
Bacteria cell
Plant cell
In a plant, animal and bacteria cells state whether you can find:
Nucleus
Animal cell
Plant cell
In a plant, animal and bacteria cells state whether you can find:
Permanent vacuole
Plant cell
In a plant, animal and bacteria cells state whether you can find:
Chloroplasts
Plant cell
In a plant, animal and bacteria cells state whether you can find:
Flagella
Bacteria cell
In a plant, animal and bacteria cells state whether you can find:
Circular strand of DNA
Bacteria cell
Which is larger a prokaryotic cell or a eukaryotic cell
Eukaryotic cells are larger