Cells, Tissues & Organs

Question 1

What are the four main types of tissue?

Answer 1

• Epithelial
• Connective
• Muscle
• Nervous

Question 2

What is Epithelial Tissue?

Answer 2

Forms the lining layer on the outer and inner surfaces of organs

Question 3

What is connective tissue?

Answer 3

Tissues and organs are supported and held in position in the body by connective tissue which binds, supports and protects other body tissues

Question 4

What cells are found in Connective tissue?

Answer 4

Fibroblasts - secrete extracellular fibres
Mast cells - secrete histamine in inflammatory reactions
Macrophages - engulf pathogens, ageing, damaged and cancer cells

Question 5

Two or more different tissues form a ..

Answer 5

Organ

Question 6

What’s the order of the cells and the body?

Answer 6

Molecules
Organelles
Cells
Tissues
Organs
Organ System
Organism

Question 7

Which organ processes digested nutrients and is the largest organ inside the body?

Answer 7

Liver

Question 8

What’s the largest organ outside of the body?

Answer 8

Skin

Question 9

What tissue is abundant in the wall of the heart?

Answer 9

Muscle

Question 10

What system transports oxygen and nutrients to the cells of the body?

Answer 10

The Circulatory system

Question 11

What organ system does the trachea belong to?

Answer 11

Respiratory

Question 12

The stomach belongs to what system?

Answer 12

Digestive

Question 13

What organs are involved in the intake of O2?

Answer 13

Respiratory
Muscular
Nervous

Question 14

What type of tissue forms a packing material that surrounds and protects organs by cushioning them?

Answer 14

Connective tissue

Question 15

Examples of a cell?

Answer 15

Red blood cell

Cardiac muscle cell

Question 16

Three main components of the cardiovascular system?

Answer 16

Heart
Blood vessels
Blood

Question 17

What are the three layers of the heart wall?

Answer 17

Pericardium - outer protective layer
Myocardium - thick, responsible for forcing out bloody of heart chambers
Endocardium - line the interior surface of the heart and all blood vessels

Question 18

Cardiac muscles are located in the walls of the heart & they are ..

Answer 18

Striated ( striped )

Question 19

The pericardium has what function?

Answer 19

Reduces friction between the 2 pericardial membranes

Question 20

Where does the blood flow through the heart?

Answer 20

Deoxygenated bloody through superior vena cava
Right atrium 
Right ventricle
Pulmonary artery ( to lungs )
Pulmonary vein ( from lungs )
Left atrium 
Left ventricle 
Aorta
Back round body

Question 21

What is the valve called in between the right atrium and right ventricle?

Answer 21

Tricuspid valve

Question 22

What’s the valve called in between the right right ventricle going to the pulmonary artery?

Answer 22

Pulmonary valve

Question 23

Which chamber of the heart has the thickest wall?

Answer 23

Left ventricle because lots of muscle, creates a lot of pressure, creates such a great force to pump the blood around the body

Question 24

Which blood vessel lacks smooth muscle tissue in its wall?

Answer 24

Capillary

Question 25

Which bloody vessel carries deoxygenated blood to the lungs?

Answer 25

Pulmonary arteries

Question 26

Which artery do you usually record the pulse rate in?

Answer 26

Radial artery

Question 27

What is the largest diameter artery in the human body?

Answer 27

Aorta

Question 28

What is the largest diameter vein in the human body?

Answer 28

Inferior vena cava

Question 29

What organelle functions in cellular respiration to produce energy?

Answer 29

Mitochondrion (energy plant)

Question 30

What organelle functions to package and deliver proteins?

Answer 30

Golgi body (Post office and parcel sorting centre)

Question 31

The rough endoplasmic reticulum functions to?

Answer 31

Manufacture and transport proteins (Road and Rail)

Question 32

What organelle is responsible for destroying worn out cell parts?

Answer 32

Lysosomes ( recycling plant )

Question 33

Genetic material is contained in the?

Answer 33

Nucleus (Town hall and information centre)

Question 34

Which organelle is responsible for the formation of proteins within the cell?

Answer 34

Ribosome (Factories)

Question 35

Name some characteristics of the cell membrane?

Answer 35

Protective 
Flexible 
Thin 
Encloses the contents of the cell
Barrier

Question 36

Describe the fluid mosaic model of the plasma membrane?

Answer 36

A lipid bilayer with protein molecules dispersed within it

Question 37

What is diffusion?

Answer 37

Movement of molecules of high concentration to a lower concentration gradient

Question 38

What is osmosis?

Answer 38

Flow of water across a membrane

Question 39

Particles moving from a region of lower concentration to a region of higher concentration is called?

Answer 39

Active transport