CELL, TISSUES AND MUSCLES

GENOTYPE OO is blood type

O

AO or AA is blood type..

A

BO or BB is blood type

B

AB is blood type

AB

What two are codominant

A and B

What one is recessive

O

How many chromosomes do humans have

46

how many pairs of chromosomes do people have

23

what is packed into chromosomes

DNA

gram positive bacteria have a

thick peptidoglycan wall

gram negative bacteria have a

thin peptidoglycan wall and an additional outer membrane

What is the difference between viruses and bacteria in reproducing

A virus needs a host to reproduce, and bacteria reproduce independently

what is the size difference between a virus and bacteria

A virus is smaller, and bacteria are larger

What are three functions of epithelial tissue

covers surfaces, protection and forms linings

two functions of connective tissue

connects structures, support and protection

what layer is the epidermis

outerlayer

what does the dermis contain

hair follicles, sweat glands and blood vessels

What does the hypodermis contain

fat layer, anchors skin

what are two characteristics of skeletal muscle

voluntary and moves skeleton

two characteristics of smooth muscle

non-voluntary and found in organs and vessels

What do the sebaceous glands do

produce oil (sebum)

osteoblasts?

build bone

osteoclasts

break down bone

osteocytes

maintain bone

compact bone 3 characteristics

dense, strong, outer layer

spongy bone 2 characteristics

porous and contains marrow

what are some factors that impact bone healing

severity of injury, immobilisation, nutrition and age

What is calcium regulated by

hormones

calcium homeostasis important for?

muscle contraction, nerve functioning and blood clotting