B1.1 Cell Structures Flashcards
Eukaryotic cell
Cells whose genetic material is contained within a nucleus
Prokaryotic cell
Cells whose genetic material floats within the cytoplasms
Name the organelles ALL eukaryotic cells contain.
Nucleus
Cell membrane
Mitochndria
Cytosplasm
Name the EXTRA subcellular structures found in plants to animal cells.
Chloroplast
Cell Wall
Vacuole
Function of the nucleus
- Controlling the activities in the cell
- Contains the organisms genetic material, arranged as chromosomes
- Determines cells appearance and function
- The โpower-houseโ of the cell.
- Provides energy by respiration
Mitochondria
Function of the cell membrane
- Delicate surface membrane made of two layers of phospholipid
- Holds the cell together
- Controls what goes in and out of the cell
- Transfers energy, makes things, and stores food.
- Jelly-like substance where hundreds of reactions take place, which make up metabolism.
The cytoplasm
This cell type is complex and relatively large 10-100 ฮผm
Eukaryotic e.g. plant & animal cells
Which English inventor and scientist where discovered cells using his self-designed microscope in 1665?
Robert Hooke
MRS GREN
M = ovement
R = espiration
S = ensitivity
G = rowth
R = eproduction
E = xcretion
N = utrition
This cell type is simple and typically smaller ~1-10 ฮผm
Prokaryotic cells e.g bacteria cells
What are ribosomes and what is their function?
Ribosomes are tiny granules on the membranes in the cytoplasm.
Ribosomes are where proteins are made in the cell.
This organelle harnesses energy from the sun for photosynthesis
Chloroplast
What is a a vacuole and what is its function?
- Vacuole a large cavity filled with a watery fluid called cell sap.
- It helps keep the cell rigid, pushing outwards.