a) connective

b) muscle

c) nervous

What tissues fall under muscle tissue?

skeletal, smooth, cardiac

1. What are the four main tissue types in the human body?

a) Ectoderm

b) Mesoderm

c) Endoderm

a) x- axis, y- axis, results

B) title, results, x-axis, y- axis, legend

c)legend, results

a) Cartilage

b) Skin

c) Bone

d) Skeletal Muscle

e) Glands

f) Blood

g) Neurons

what does your body do to cool down?

define homeostasis

Brown is mostly found in babies and has little drops of fat. White has big drops

2. Explain why brown adipose is brown.

Iron in the mitochondria

3. White adipocytes are mostly made up of?

a. Mitochondria

b. Blood cells

c. Lipids

d. Bone Marrow

4. What is the purpose of adipose?

Stores body fat and regulates energy

4. What role does brown adipose play?

Transfers energy into body heat

Binds and supports other body types, form a framework and support for organs and the body as a whole

• blood cells

• compact bone

• fat or adipose tissue

• cartilaginous tissue

1. Analyse and explain bone tissue types.

   • A bone is made up of a compact tissue (The hard, outer layer) and cancellous tissue which is the spongy, inner layer containing bone marrow. The bone tissue is maintained by bone-forming  cells which are called osteoblasts and cells which, break down cells called osteoclasts

2. Describe the cells in bone tissue

   • The bone is composed of 4 different cell types; osteoblasts, osteocytes, osteoclasts and the bone lining of the cells and osteoclasts are seen and present in bone surfaces and are derived from mesenchymal cells called progenitor cells. 

3. Explain how and where bone Marrow is made

• Bone marrow is produced in the center of bones; bone marrow is the spongy tissue in the hollow centers of an individual's long bones. This is called the cell ‘factory’. Healthy bone marrow releases blood cells into the bloodstream when they mature when required. Bone marrow is made up of stem cells, these stem cells are able to make red bone marrow creating blood cells and platelets for blood. Yellow bone marrow consists of mostly fat and stem cells that produce bone and cartilage in the body.

4. On Average when do we start to lose bone?

a. ages 35-44

b. ages 45-54

c. 55-64

5. Explain the main role and function of the periosteum

   • The main role of the periosteum is the membrane of blood vessels and nerves that wrap around most of the bones. The periosteum is what delivers bones to their blood supply and gives them a sense of feeling. The periosteum is a fibrous sheath that covers the bones; it contains the blood vessels and nerves which provide nourishment along with sensation and feelings to the bone. 

2. Explain where embryonic stem cells are sourced from the human body?

   Embryonic stem cells are sourced from embryos that are 4-7 days old, from the inner cell mass of the human blastocyst.

3. Explain what cell differentiation is and where it occurs?

   Cellular differentiation is the process in which a stem cell changes from one type to differentiated one. It occurs throughout the body.

What is the difference between mitosis and meiosis?

a) striated

b) involuntary

c) voluntary

d) cardiac

2. What is the human body’s biggest organ?

Skin

3. What do the digestive, respiratory, circulatory, and excretory systems have in common?

They all transport materials in the body (Food, oxygen, carbon dioxide and waste)

title

legend

x-axis

y-axis

B)WBC

C)Platlets

-connective tissue reinforced with calcium and specialized bone cells.

The 4 cell types bones are made up of are:

-osteoblasts

-osteocytes

-osteoclasts

-bone lining cells

3. Name 4 types of skeletal bones:

   a) skull

   b) vertebral

   c) column

   d) rib cage

5. Are bones alive?

Yes, the bone is a living tissue

6. How many bones are in an adult human?

a)103

b)206

c)225

d)306

7. The hollow space in the middle of bones is filled with:

   a) compact bone cells

   b) cancellous bone cells

   c) connective cells

   d) blood cells

cells, atoms, organ system, tissues, molecules, organs.

2. What type of stem cell can become any cell in the body?

   a. embryonic stem cell

   b. adult stem cell

   c. epithelial stem cell

a) Ectoderm

b) Mesoderm

c) Endoderm

1)The outermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the epidermis, nerve tissue, and nephrida.

2)The innermost layer of an embryo that is the source of the epithelium of the digestive tract and its derivatives and of the lower respiratory tract.

3) The middle layer of cells or tissues of an embryo or the parts derived from this (e.g. cartilage, muscles, and bone).

Answers

1, a

2, c

3, b

Answers

Purple - Endoderm

Blue - Mesoderm

orange - Ectoderm

A) Title

B) y-axis

C) x-axis

D) legend

A)Transportation of nutrients

B)Protection against infectious diseases

C)Transportation of heat

D)Production of oxygen