Paper 1 B1 Flashcards
Eukaryotic cells have a nucleus?
Yes
Give an example of an prokaryotic cell
Bacteria
What is the cell wall made of
Cellulose
What is in the permanent vacuole
Cell sap
Where does photosynthesis happen in animal cell
Chloroplast
3 similarities with animal and plant cell
Nucleus
Cell membrane
Mitochondria
2 examples of specialised cells
Tail on the sperm
Nerve cells are long to cover more distance
What part of a cell contains chromosomes
Nucleus
What do chromosomes carry
Genes
What is mitosis
Cells divide into 2
What are cells not specialised called?
Stem cells
What is diffusion
Movement of particles high concentration to low concentration
What is the job of the cell membrane
Controlled what goes in and out of the cells
What is osmosis
Movement of water molecules from less concentrated to more concentrated
What is active transport
Substances absorbed from low concentration to a higher concentration
How do humans use active transport
Absorb nutrients from food
Do single celled organisms have a small surface area
No
Do multicellular organisms have a large surface area compared to their volume
No , smaller
Where does gas exchange happen
Alveoli into capillaries
What gives the small intestine a big surface area
Villi
What three things to plant cells have the animal cells don’t?
Cell wall
Vacuole
Chloroplasts
