Trachea
Allows air to pass in and out of lungs. (windpipe)
Aerobic respiration is
Making energy with glucose AND OXYGEN
Which structure houses a pollen prior to pollination.
Stamen.
. Place the following events in sequence: A) Pollen is
deposited on a pistil; B) Pollen fertilizes an ovule; C) A
honeybee collects pollen.
C, A, B
Pollination
the transfer of pollen grains from the male part of a flower to the female part of a flower.
Bronchi
Two short branches at the end of the trachea
Where does respiration take place IN THE CELL?
Mitochondria
(the power house of a cell!)

What is another name for a fertilized ovule?
seeds
Why do seeds have tough, protective coverings?
So they can travel long distances without getting damaged.
The process of a seed growing into a new plant
Germination
What is DIFFUSION?
The movement of particles from an area of HIGH concentration to an area of LOW concentration.

What is gas exchange?
The process by which oxyen reaches cells and carbon dioxide is removed from them
What can you infer about a brightly-colored flower?
. It is probably pollinated by an insect that is attracted
to that color
Petals on insect pollinated flowers
Large and brightly coloured to attract insects
What are the factors may play role in seed germination?
Temperature, Water, Oxygen, Soil, Hormons, pH, Moisture.
What happens during INHALATION
Diaphragm
Intercostal muscles
Ribcage
Air pressure
Diaphragm: Contracts / Moves down
Intercostal muscles: Contract
Ribcage: Moves up and out
Air pressure: Decreases

Arteries
1. carry _______________ blood
2. have ___________ walls
3. blood pressure is (high / low)
4. carries blood (out of / into) the heart
1. carry OXYGENATED blood
2. have THICK walls
3. blood pressure is HIGH
4. carries blood OUT OF the heart
Pollen characteristic on insect pollinated plants
Sticky or spiky to stick to insects
wind pollination
pollination of plants by means of pollen carried on the wind
emphysema
A disease in which the lungs cannot take much oxygen out of the air because the walls of the alveoli have broken down.
What are 4 alveoli features that help gas exchange?
They have:
1. Large surface area
2. Moist surface (allows oxygen to dissolve)
3. Thin walls
4. Surrounded by lots of capillaries

Veins
1. carry _______________ blood
2. have ___________ walls
3. blood pressure is (high / low)
4. carries blood (out of / into) the heart
Veins
1. carry DEOXYGENATED blood
2. have THIN walls
3. blood pressure is LOW
4. carries blood INTO the heart
Fertilization
The process that involves the travel of a pollen grain from the anther to the stigma, down the pollen tube to the ovule where it encounters the egg. The egg transforms into a seed as a result of this encounter.
Pollen characteristic on wind pollinated flowers
Light, dry, smooth and light so it doesn't clump together and can be easily carried by the wind
tissue fluid
The liquid formed when plasma leaks out of capillaries, carrying oxygen and food to cells.