Cell biology - Genral Flashcards
(23 cards)
What’s the scientific name for a ‘Red Blood cell’ ?
Erythrocyte
What does the red blood cell carry?
Oxygen
What is the scientific name for a ‘White blood cell’?
Thrombocyte / Leukocyte
What are the two main functions of the white blood cell?
- Prevention of clotting
- Fighting Infection
Are humans multi-cellular?
Yes
what are the ‘basic building blocks’?
Cells
What type of cells have a nucleus?
Eukaryotes / Eukaryotic Cells
What cells are membrane-bound?
Eukaryotes / Eukaryotic Cells
What are the two main structural differences between a eukaryotic cell and prokaryotic cells?
Prokaryotic cells don’t have a nucleus and they aren’t membrane bound.
Describe the cytoplasm, explain where it is within a cell and it’s function.
- It’s Fluid-like sububstance
- It lies between the cell membrane and the neucleus
- Helps the cell maintain shape and form.
What organelle covers the nucleus?
Endoplasmic Reticulum
What organelle is a ‘series of flat membrane-bound sacks’?
Golgi Apparatus
What is the function of Golgi Apparatus within the cell?
Golgi Apparatus is specialized for recieving molescules of substance secreted by endoplasmic reticulum.
Where do eythrocytes take oxygen from the lungs?
Eythrocytes carry oxygen from the lungs, through the blood stream to ‘respiring tissue’.
In what way are ‘Erthrocytes’ specilized for function?
- Small and flexibile - Creates easier movement and access through capillaries.
- Biconcave- Maximises surface area to enhance speed of movement/diffusion of oxygen in and out the cell.
Haemoglobin a lipid that carries oxygen. True, or False?
False, Its a protein which attracts Oxygen
A red blood cell’s shape is concave. True, or Flase?
False, Its biconcave.
Name the three sections of the sperm cells structure.
- Head
- Mid peice
- Flagella
What is the ‘Flagella’?
A whip-like tail to help move the sperm to its destination. The flagella is specialised to create speed.
How many chromosomes are within the nucleus of a sperm cell?
23
What organelle is found within the ‘Mid-peice’ of a sperm cell?
Mitochondria, which provides ATP/energy to the flagella.
What is the function of Acrosome ?
Acrosome help release enzymes which enable sperm to meet the egg.
why is a sperm head pointed?
To enable the sperm to break the egg easily.
