Unit 1 - Tissues, Organs, And Organ Systems

Question 1

Stem cells in plants are called _____________ cells.

Answer 1

Meristematic

Question 2

What are tissues?

Answer 2

Tissues are groups of specialized cells that function together to perform specific tasks.

Question 3

What are the four basic types of animal tissues?

Answer 3

Epithelial
Muscle
Connective
Nervous

Question 4

What do animal epithelial cells do?

Answer 4

• Form a protective barrier that covers the outer layer of the body (skin)
• Lines body cavities such as the digestive system
• Protection

Question 5

What do animal connective tissues do?

Answer 5

• Join other tissues together:

- Tendons, ligaments, Bones and cartilage, red and white blood cells, adipose (fat)

Question 6

What do animal muscle cells do?

Answer 6

Three types:
Skeletal (Voluntary)
Smooth muscle (Involuntary)
Cardiac (Involuntary)
Voluntary means you can control them, while involuntary means they move without conscious control (heart beating)

Question 7

What does animal nervous tissue do?

Answer 7

Creates impulses and transmits them throughout the body

Receive info from inside and outside the body

Sends info to other nerve cells, muscles, or glands

Question 8

What are the four types of plant tissues?

Answer 8

Meristematic
Epidermal
Ground
Vascular

Question 9

What do plant meristematic tissues do?

Answer 9

The stem cells of the plants. It divides by mitosis and is found in several locations in a plant.

Question 10

What do plant epidermal tissues do?

Answer 10

Protects all surfaces of the plant (roots, stem, leaves)

Exchanges water and gases

Question 11

What do plant Ground tissues do?

Answer 11

Form most of the plant and its functions vary with its location

Roots - store water and food
Leaves - Performs photosynthesis
Stems - Provides strength and support

Question 12

What do plant vascular tissues do?

Answer 12

Transports materials throughout the plant

Question 13

Name the parts of the digestive system in order, and name what they do.

Answer 13

Mouth - Grinds food with teeth
Esophagus - Pushes food into the stomach
Stomach - Fluids and muscles digest the food with acids
Small intestines - digestion and absorption of nutrients
Large intestines - absorption of water
ANUS

Question 14

What organs are in the circulatory system?

Answer 14

Heart, blood, arteries and veins, blood vessels, and capillaries.

Question 15

What does the circulatory system do?

Answer 15

Pumps oxygen-rich blood through arteries away from the heart and to the body

Takes oxygen-poor blood from the veins and and sends it to the lungs for replenishment

Question 16

What does the respiratory system do?

Answer 16

Breathing and gas exchange

Removes CO2

Question 17

What organs are in the respiratory system?

Answer 17

Nose, sinus cavity, trachea, Pharynx,
Bronchi,
Bronchioles,
Diaphragm,
Alveoli

Question 18

What organs are in the nervous system?

Answer 18

Brain, spinal cord, and nerves

Question 19

What two regions of the body are there for the nervous system?

Answer 19

The Central nervous system (Brain and spinal cord)

The peripheral nervous system (Everything else)

Question 20

Define homeostasis

Answer 20

Means steady state.
For example:
If your bladder is full, you will need to go to the washroom because theres too much liquid there
When youre hot, you sweat. When youre cold, you shiver

Question 21

RECAP - What are the functions of the
digestive system
circulatory system
respiratory system
nervous system

Answer 21

DS - Break down food and absorb nutrients
CS - Transport oxygen and nutrients around the body
RS - Exchange gases (Oxygen in, Carbon dioxide out)
NS -controls all systems

Question 22

What are stem cells?

Answer 22

They are unspecialized cells that divide by mitosis, and form specialized cells when exposed to the proper environmental conditions.