General
What is the process of which an acid reacts with a base called?
Neutralization reaction
Which blood vessel carries blood at the lowest pressure?
Veins.
Are metal oxides acidic or alkaline?
Alkaline
Name the 4 forces acting on a plane flying.
Air resistance, gravity, thrust, contact force.
Only the person who chose this question can answer.
Answer wrong and lose half your points.
- 5 processes to describe how food travels through your body. In order.
Ingestion, digestion, absorption, assimilation, elimination.
Give 2 examples of disaccharides.
Sucrose and maltose.
Explain the transpiration stream.
Water moves from ground to roots by osmosis, replacing water that moves up stems. Water moves from roots to stems. Water moves from stem to leaves to replace water lost by evaporation. Water moves from leaves outside through the stomata by evaporation.
In electrolysis, the negative ions are attracted to which graphite rod?
The Anode.
Energy transfer of charging a phone, and then watching a movie on it.
Electrical -> Chemical -> Light, sound, heat.
Everyone bet an even number of points. Anyone can bet up to 1000 but if you have more, you can bet more.
Answer correctly and gain that amount, wrongly and you lose that amount.
- Name 5 applications of glucose
Possible answers:
- Energy - Sucrose for transport
- Starch storage - Creating fats & oils
- Cell wall creation
- Creating amino acids & proteins
What is the process of a plant's cell membrane ripping off of its cell wall called?
Plasmolysis.
Describe the process of which an enzyme breaks down a substrate.
Enzyme has an active site that matched with its substrate. If the substrate hits the enzyme's active site in the right position with sufficient energy, an enzyme-substrate complex is formed. It then reacts and the substrate is broken up.
If salt and hydrogen are the products, what are the reactants.
Acid and metal.
Bad boy Billy is pulling his dog with a leash at a 60 degree angle with 25N of force. His house is 20m away. How much energy does he need?
250J
Answer wrongly and gain 300 points!
- Mastication is a method of physical digestion.
- True or False.
True! but you only gain points if you answered false.
Why is a tall thin stick more likely to topple over than a square box.
A stick's center of gravity is higher than the base its balancing on. While a box's base accounts for its center of gravity.
What does the pancreas do? (2 things)
Creates enzymes: amylase, protease, lipase
Creates pancreatic juices (NaHC) which neutralizes acidic chyme.
Name and explain the 2 types of bonds in a compound of any kind.
Intramolecular forces are strong bonds within molecules. Intermolecular forces are weak bonds between molecules.
Is speed a scalar or a vector? Why?
Scalar. Speed has no direction.
Name the blood vessel:
- Deoxygenated from body to heart:
- Deoxygenated from heart to lungs:
- Oxygenated from lungs to heart:
- Oxygenated from heart to body:
- Deoxygenated from body to heart: Vena Cava
- Deoxygenated from heart to lungs: Pulmonary arteries
- Oxygenated from lungs to heart: Pulmonary veins
- Oxygenated from heart to body: Aorta
What happens for a covalent bond to form?
A non-metal shares its electrons with another non-metal so their valence shells are full.
What does bile do, where is it made, and where is it stored.
Bile neutralizes chyme and emulsifies fats (increasing the area of which lipase can act on). It is made in the liver and stored in the gall bladder.
What happens when you put a block of Aluminum in liquid Calcium Chloride.
Nothing happens.
A 30kg girl falls from a 80m height with 3840 J of kinetic energy. A 45kg firefighter is moving with a 5kg cushion to break the girl's fall. He's 36m away and is moving with 3600J of kinetic energy.
Can the firefighter make it before the girl hits the ground?
Yes.
The girl falls with a velocity of sqr(3840*2/30)=16m/s
Falling from a 80m height, she'd hit the ground in. 80/16=5 seconds.
The firefighter is moving with a velocity of
sqr(3600*2/50)=12m/s
Being 36m away, he'd make it in. 36/12=3 seconds.
The firefighter makes it there faster than the girl falls.
Name the 5 types of chemical reactions.
- Correct examples get 500 bonus.
- Everyone answers. 3 minutes.
Synthesis, decomposition, neutralization, combustion, displacement.