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what does your body do to keep warm?

what does your body do to cool down?

define homeostasis

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What tissue is cartilage?

a) connective

b) muscle

c) nervous

What tissues fall under muscle tissue?

skeletal, smooth, cardiac

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1. How do the four main tissue types differ from each other in terms of structure and function?

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

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1. a) Epithelial tissues act as coverings, controlling the movement of materials across their surface. Connective tissue binds the various parts of the body together, providing support and protection. Muscle tissue allows the body to move and nervous tissues functions in communication.

2. a) There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue.

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What primary germ layer is the nervous system part of?

a) Ectoderm

b) Mesoderm

c) Endoderm

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What are some examples of connective tissue? (pick 3)

a) Cartilage

b) Skin

c) Bone

d) Skeletal Muscle

e) Glands

f) Blood

g) Neurons

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Which of the following is NOT a major function of blood?

A)Transportation of nutrients

B)Protection against infectious diseases

C)Transportation of heat

D)Production of oxygen

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1. What is the main difference between white and brown adipose?

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

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Label arrow A, B & C                                                                                                                                                                                                        

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A)RBC

B)WBC

C)Platlets

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What are the functions of the connective tissue?

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

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Describe what an independent and dependent variable is?

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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.

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1. What type of connective tissue is blood? Specialised fluid connective tissue

2. What is plasma's job within the body? Take nutrients, hormones & proteins to different parts of the body.

3. What is the role of platelets? To help stop and prevent bleeding

4. Which germ layer do these cells derive from? The mesoderm layer

5. In what way is blood a unique tissue? It is a fluid tissue

6. Name three types of Leukocytes: Neutrophil, Basophil & Lymphocytes

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Transportation across the cell membrane, diffusion, and concentration gradient

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Transportation across the cell membrane, diffusion, and concentration gradient

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1. How many types of transport are there? Name them

2. What type of transport doesn’t require energy?

3. In what type of transport will particles diffuse down a concentration gradient?

a) All types of transport

b) Passive transport

c) Doesn’t require transport for this to occur

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1. What defines a embryonic stem cell

A. Cells with the potential to develop into many different cells

B. Cells with the ability to become any prokaryotic cell

C. A cell which controls other cells

D. A cell produced in the brain to repair nerve damage

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.

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1. how to cells work together to form tissues?

2. How do tissues cooperate to create functional organ systems within the body?

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1. Breathing, heart beating, and food digesting are examples of activities using what type of muscles?

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)

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What is the process of mitosis?

What is the difference between mitosis and meiosis?

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Match the above pictures with the following words

blood cells

compact bone

fat or adipose tissue

cartilaginous tissue

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1. Do bones have skin?

yes, bones have an outer layer that is like a thin skin or membrane. This membrane is called the periosteum. The periosteum is filled with blood vessels to help feed the bone.

2. What are bones made of?

-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

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1. How do stem cells become tissue?

2. What do stem cells do?

3. What type of stem cell can become any cell? pluripotent or embryonic?

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True or False this is a line graph

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1. Use the following words to order from atoms to body systems in the correct order?

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

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what colour has the highest ammount

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what are the components needed on a graph?

a) x- axis, y- axis, results

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

c)legend, results

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Answer:

A) Title

B) y-axis

C) x-axis

D) legend

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match the letters with the correct corresponding answer.

title

legend

x-axis

y-axis

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Match the definition with the germ layer:

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

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Label the three germ layers of the human gastrula on the diagram.

Answers

Purple - Endoderm

Blue - Mesoderm

orange - Ectoderm