Bio -Maintaining A Balance

Front 1

Define Enzymes

Back 1

Enzymes are biological catalysts which speed up an event, they are a chemical reaction

Front 2

When a substrate acts on a enzyme what happens?

Back 2

They bind together creating an enzyme substrate complex

Front 3

What is the lock and key Mechanism

Back 3

When an enzyme and a substrate are bound together

Front 4

Why are enzymes important to the Metabolism

Back 4

because they are a catalyst and speed up chemical reactions in the body without them the Metabolism would be too slow to support life

Front 5

what are enzymes made up of

Back 5

They are made up of proteins

Front 6

What happens with the poly peptide chain in enzymes

Back 6

it is folderd into a 3 dimensional globular shape

Front 7

Why is Homeostasis important to enzyme function

Back 7

Because Enzymes only funciton within a certain range of conditions, therefore Homeostasis must be kept for maximum function

Front 8

What are the two stages of Homeostasis?

Back 8

Detection and response

Front 9

Detection...

Back 9

An organism detects change from a stable state

Front 10

Responds...

Back 10

An organism respnods to change and counteracts change to bring body back to stable state

Front 11

What is a stimulus

Back 11

Any change or information that provokes a response

Front 12

What are reseptors

Back 12

Detect stimuli

Front 13

List some Examples of External Stimuli

Back 13

light, day length, sound, temperture

Front 14

List some Examples of Internal Stimuli

Back 14

Level of CO2, oxygen levels, water levels

Front 15

What are effectors

Back 15

bring about response to stimuli

Front 16

What is the temperture control center in mammals??

Back 16

The hypathalimus

Front 17

What are the two systems in the nervous system

Back 17

Central nervous system...Brain and spinal cord
Peripheral Nervous System...Branching system that run through out the body

Front 18

What is Ambient temperture

Back 18

Temperture of the enviroment

Front 19

What are ectotherms

Back 19

Animals that rely on the Ambient temperture to control their internal enviroments

Front 20

Endotherm

Back 20

Responses to changing temperature

Front 21

Turgor Response

Back 21

wilting

Front 22

Leaf orientation

Back 22

Change oriantation of leaves, to reduce exposure to the sun.

Front 23

Leaf Fall

Back 23

reduce exposure to sun, reduce risk of loosing water through exposure

Front 24

Reseeding

Back 24

resprouting in response to eatream high temp

Front 25

Thermogenic Plants

Back 25

Flowers able to heat up during cold month

Front 26

What is carried in Plasma?

Back 26

Carbon dioxide, Oxygen, water, salt, lipids, nitrogenous wastes, hormones, vitamins, anitibodies

Front 27

Carbon Dioxide

Back 27

is carried in the blood and bings to hemoglobin making carbaminohaemoglobin and also changes into hydrogen carbonate ions

Front 28

Oxygen in blood

Back 28

Oxyhemoglobin

Front 29

The Adaptive Advantage of Heamoglobin

Back 29

It can carry more oxygen through the blood

Front 30

Arteries

Back 30

Carry, blood away from heart.
Arteries have thick walls and they are elasticy.
Carry Oxygenated blood

Front 31

Capillaries

Back 31

Conect, arteries and veins.
one cell things,

Front 32

Veins

Back 32

Low Oxygenated blood,
Thinner walls, serries of valves which provent blood from flowing backwards.

Front 33

Pulamanary circut

Back 33

Blood enters right atrium via vina cava, The is deoxgenated...as the heart pumps the right ventrical pumps the blood through the pulmonary artery to the lungs, where the blood gains oxygen and losses carbon dioxide

Front 34

Xylem

Back 34

transport water and inorganic ions Up the plants, water moves in by osmosis

Front 35

Transpiration

Back 35

Evaporation of water from the leafe cells throught the stomates initiating the pull of the transpirtaion stream. Water is the drawn up the xylem tupes to replace water loss.

Front 36

Cohesion

Back 36

Water molecules bing together forming a continuous coloum in the xylem, which replaces any loss

Front 37

Adhesion

Back 37

Water molecules stick to the sides of the xylem tubes, pulling the water up the tubes., caused by Cohsion and Adhesion

Front 38

Phloem

Back 38

Transports materials both up and down the plant, it is an active process that requires energy. A pump activly moves sugars into the sieve tues.

Front 39

Symplatic Loading

Back 39

one of the 2 ways nutrience is moved into phloem tubes....Sugars and nutrience move into the cytoplasm from the mesophyll cells to the sieve elemements, through plasmodesmata joining adjacent cells

Front 40

Apoplastic loading

Back 40

sugars and nutrience move along the cell walls to the sieve tube. then they cross the cell membrane by active transport.