B1.1 - Cell structures Flashcards
What are Eukaryotic cells ? + Example
Cells whose genetic nuclei is contained within a nucleus.
e.g Animal cell, plant cell
What are Prokaryotic cells ? + Example
Cells whose genetic material floats within the cytoplasms.
e.g bacteria
Name all the organelles in an animal cell ?
- Nucleus
- Mitochndria
- Cytosplasm
- Cell membrane
Name the organelles found in plant cells?
- Nucleus
- Cell wall
- Cell membrane
- Chloroplast
- Mitochondria
- Vacuole
- Cytoplasm
what is the function of the nucleus ?
- Controls the cell, the activities in the cell
- Contains the organisms genetic material, arranged as chromosomes
- Determines cells appearance and function
What is the function of the mitochondria ?
-The ‘power-house’ of the cell.
- Provides energy by respiration
What is the function of the cell membrane?
- Holds the cell together
- Controls what goes in and out of the cell
- Delicate surface membrane made of two layers of phospholipid
What is the cytoplasm ?
Jelly-like substance
What is the function of the cytoplasm ?
- Transfers energy, makes things, and stores food.
- Jelly-like substance where hundreds of reactions take place, which make up metabolism/ keep the cell alive
Difference between Eukaryotic and Prokaryotic cells?
Eukaryotic : The cell type is complex and relatively large 10-100 μm
Prokaryotic cells : The cell type is simple and typically smaller ~1-10 μm
What does MRS GREN stand for ?
M = ovement
R = espiration
S = ensitivity
G = rowth
R = eproduction
E = xcretion
N = utrition
Which English inventor and scientist where discovered cells using his self-designed microscope in 1665?
Robert Hooke
Examples of Eukaryotic cells ?
Animal and plant cells
Examples of Prokaryotic cells ?
Bacterial cells
What are Ribosomes ?
Ribosomes are tiny granules on the membranes in the cytoplasm.
What is the function of ribosomes ?
Ribosomes are where proteins are made in the cell