A2.2 Cell Structures [SL]

what is the smallest unit of life

what is the smallest unit of life

cells

formula of image size

actual size x magnification = image size

conversion from millimeter to micrometer

x1000

conversion from micrometer to nanometer

x1000

what are the four developments in microscopy

freezing fracturing, cryogenic electron microscope, immunofluorescence, fluorescent stains

what are the three common structures in all living organisms

1. DNA as the genetic material

2. cytoplasm

3. plasma membrane made of lipids

give two characteristics of prokaryotic cells

• no nucleus

• no membrane bound organelles

draw and label a prokaryotic cell

draw and label an eukaryotic cell

what are the 7 processes of life

homeostasis, metabolism, nutrition, movement, excretion, growth, response, reproduction

what are the 4 atypical cell structure in eukaryotes

red blood cell, skeletal muscle cell, aseptate hyphae, sieve tube elements

is red blood cell anucleate or multinucleated

anucleate

is skeletal muscle cell anucleate or multinucleated

multinucleated

is aseptate hyphae anucleate or multinucleated

multinucleated

is sieve tube elements anucleate or multinucleated

anucleate

excretion in unicellular organism

waste products from vacuole to anal pore

reproduction in unicellular organism

sexually or asexually

growth in unicellular organism

once it reaches a certain size, it will divide into two

movement in unicellular organism

propelled by cilia in response to simuli

response in unicellular organism

response to temperature

nutrition in unicellular organism

engulfs and digests food in vacuole, products absorbed in cytoplasm

homeostasis in unicellular organism

expels excess water in osmoregulation