Cell Biology Flashcards
Basic Characteristics of life
Movement
Growth
Respiration
Excretion
Stimulation
Homeostasis
Reproduction
Nutrition
Give an example of Eukaryotes
Plant and animal cells
What is a cell?
The basic building blocks of life, are the smallest unit of life that can replicate independently.
What happens when a bacteria divides?
They a producing a whole new organism (asexual reproduction)
What similarities do animal and plant cells have?
Organelles:
Cell membrane
Nucleus
Cytoplasm
Mitochondria (For Energy)
Ribosomes (Proteins are made there)
What differences do animal and plant cells have?
Plants:
1: Cellulose cell wall (Support and structure to prevent bursting)
2: Permanent Vaucole (Contains cell sap)
3: Chloroplasts > Chlorophyll
An alternate word for procaryotic cell:
Unicellular
1 Cell organism
What do procaryotic cells such as bacteria have?
Cell wall
Cytoplasm
Ribosomes
Cell membrane
Strand of DNA in the cytoplasm
No Nucleus
What are Plasmids and Nucleiods?
They are circular and extra strands of DNA that contain information for reproduction, antibiotic resistance, and more.
What is flagella?
Thread like structures that rotate to allow it to bacteria to move around?
Similarities between prokaryotic and Eukaryotic Cells
DNA
Ribosomes
Cytoplasm
Cell membranes
Differences between prokaryotic and Eukaryotic Cells
Eukaryotic Cells: (Animal and plant cells)
Larger
Has a nucleus
Has membrane-bound organelles
Sometimes cell walls
Cloroplasts
Levels of cellular organization and definitions
Cells > Tissues > Organs > Organ Systems > Organisms
Tissue - Group of similar cells that work together to carry out a particular function (muscle cells)
Organs - Made of tissues,
Organ system - Group of organs combined to form a system
Why can cells not survive separately?
Their survival depends on receiving and processing information from the outside environment, whether that information pertains to the availability of nutrients, changes in temperature, or variations in light levels.
