Organisation, The Intro

Question 1

What are cells?

Answer 1

The basic building blocks of life. They make up all living organisms

Question 2

What type of cells are needed to from a tissue?

Answer 2

Specialised/differentiated cells

Question 3

What are specialised cells?

Answer 3

Cells that are specifically made to carry out a specific function

Question 4

What is differentiation (the process)? When does differentiation normally occur?

Answer 4

Differentiation is the process of how a cell becomes specialised. It naturally occurs when a multicellular organism develops.

Question 5

Give me the definition of the term “tissues”

Answer 5

A group of similar cells that work together to carry out a specific function

Question 6

A group of similar cells can form a tissue. Explain what the term “similar cells” means in this context

Answer 6

Tissues can contain diff. types of cells. As mentioned before, it’s a group of SIMILAR cells, but that doesn’t mean that the cells have to be the same. If they are different cells, but carry out similar functions, these different cells can still be part of a tissue since they are similar in some way

Question 7

Give me 5 examples of tissues found in mammals that you need to know about

Answer 7

– muscular tissue
– epithelial tissue
– glandular tissue
– nervous tissue
– connective tissue

Question 8

What is the function of muscular tissues?

Answer 8

Their main quality is contraction. They can shorted and lengthen as needed– and they are mainly needed for movement. Muscular tissues will contract to move whatever’s attached to it

Question 9

What are the 3 types of muscle tissue? Where can we find them in the body?

Answer 9

Cardiac muscle (heart, specifically making up the tick middle layer of the heart)
Skeletal muscle (found throughout the body, attached to bones via tendons)
Smooth muscle (lines blood vessels, digestive system and uterus (womb))

Question 10

What is the purpose of epithelial tissue?

Answer 10

These tissues covers and lines parts of your body. It’s purpose is either for exchange or protection.

Question 11

Give examples of epithelial being used for protection and epithelial being used for exchange

Answer 11

Protection– our outmost layer (the skin) protects the rest of our body
Exchange– lines our respiratory system (exchange of gases) lines our kidney (exchange of waste products)

Question 12

Where do we find epithelial tissues?

Answer 12

They normally form continuous lining in the cavities (empty space) and tubes (like small intestine) inside our bodies

Question 13

What do glandular tissues do?

Answer 13

They make and secrete chemicals such as enzymes and hormones

Question 14

What does the nervous tissue do?

Answer 14

Co-ordinates responses to stimuli (make decisions on what to do based on changes in the environment)

Question 15

Where can we find nervous tissues?

Answer 15

They make up the nervous system (a bunch of neurones linked by synapses)

Question 16

What do connective tissues do?

Answer 16

They support other tissues and bind them together

Question 17

Give four examples of connective tissues?

Answer 17

Cartilage, adipose tissue (fat), bone and blood

Question 18

Give the definition of an organ

Answer 18

A group of tissues that work together to perform a common function

Question 19

Give an example of an organ that contains 3 if not more of the previously listed tissues. What do these tissues do in that organ?

Answer 19

The stomach.
Muscular tissue moves the stomach walls so the stomach can churn up and digest food
Epithelial tissue is used to line both the outside and inside of the stomach
Glandular tissue is used to secrete digestive juices to digest the food

Question 20

Give me the definition of an organ system?

Answer 20

A group of organs working together to perform overall life functions

Question 21

List some examples of organ systems

Answer 21

Skeletal system
Nervous system
Digestive system
Muscular system

Question 22

Why is it so important for cells/tissues/organs to organise themselves?

Answer 22

Everything co-operates with each other so that the organisms that they’re in can perform major life process– such as respiration, digestion, reproduction. If these processes aren’t carried out, the organism will die and won’t live long enough to reproduce

Question 23

Plants have 3 major tissues we need to learn about. List them

Answer 23

The Epidermis
Ground tissue
Vascular tissue

Question 24

What are the purposes of the three major tissues in plants

Answer 24

Ground tissue: makes glucose (via photosynthesis) and stores said glucose as starch
Vascular tissue: transport (takes amino acids, water, mineral ions, sugar from the ground or wherever else they’re located and transports them to plants’ own storage for their own use)
Epidermis: protective outer layer/surface