Cells And Basic Units

Question 1

What are cells

Answer 1

Cells are basic structural and functional unit of all living organisms.

There are two,the animal and plant cells.

Question 2

What do all cells contain?

Answer 2

Membrane,cytoplasm,nucleus and organelles.

Question 3

What are the characteristics of each?

Answer 3

Membrane:surrounds the cell
•allows certain substances to move in and out of the cell
•living,thin and pliable

Cytoplasm:a liquid I which the chemical processes(metabolism)can take place in the cell.
•it is the largest part of the cell and is a jelly-like substance
•usually colourless

Nucleus (core):surrounded by the Nucleus Membrane
•There is a nucleolus/core body inside the core
•contains the DNA of the cell

Organelles:include the mitochondria and valcule

notes about mitochondria:responsible for respiration in cells and release energy from food
•cells that are very active will have more mitochondria than cells that are less active

Question 4

What are the differences between plant cells and animal cells?

Answer 4

Plant cells have:cell walls
•shape of cell
•valcuole
•chloroplast

Animal cells have non but eith the valcuole,it is small but temporary or not present at all