Answer:
1.)Homeostasis and transport
2.) Active transport
3.) ATP
Explanation:
cause i took this class
Yes, Chemical reactions occur slower at lower temperatures and faster at higher temperatures. When you put a glow stick in cold water, the chemical reaction slows down but will last for a longer period of time. When you put a glow stick in hot water, the reaction speeds up but will be over quicker.
Not sure about the variable one though, sorry!
Answer:
The correct option is option D which is 10 – 1 molecule of Oxaloacetate (OAA) is regenerated for every molecule of Acetyl-Coenzyme (AcCoA) used.
Explanation:
As the complete question is not given, the complete question is as below
Imagine that I start off with 10 molecules of oxaloacetate in a mitochondria. After running the TCA to generate 20 molecules of CO2, how many molecules of oxaloacetate will be left in the mitochondria (assuming oxaloacetate is being used only for TCA in these mitochondria)?
A) 30 – each molecule of CO2 generated corresponds to an increase of one OAA
B) 20 – every two molecules of CO2 generated corresponds to an increase of one OAA
C) 0 – two molecules of CO2 generated corresponds to one AcCoA used in the TCA; each AcCoA requires one molecule of OAA
D) 10 – one molecule of OAA is regenerated for every molecule of AcCoA used
Each cycle of TCA result in consumption of 1 Acetyl-Coenzyme (AcCoA) and 1 Oxaloacetate (OAA) molecule to give rise to 3 molecules of NADH and 2 molecules of CO2 per cycle. But at the end of each cycle, OAA molecule is regenerated. So the number of oxaloacetate(OAA) molecules remains unchanged.
Thus the correct option is option D which is 10 – 1 molecule of Oxaloacetate (OAA) is regenerated for every molecule of Acetyl-Coenzyme (AcCoA) used.
Given:
Measure of box reported by Cristal = 18 cubic units
Measure of box reported by Kyle = 48 cubic units
To find: The reason behind the discrepancies in their reporting.
Answer:
The measurement has been done in 'cubic units'. This indicates that they are measuring the volume of the box. Now, the differences in their reporting can be due to the following reasons:
- Unit of measurement: Cristal might have reported in imperial units whereas Kyle must have used metric units. Example, an inch is greater than a centimeter.
- Instrument used for measurement: Either Cristal or Kyle are using a non-standardized instrument for recording measurements. The unit spacing between, say Kyle's instrument might be smaller than that of Cristal's. They need to check it against a standard ruler to standardize their rulers.
- Least count error: Instruments with a greater least count or bigger gradations are prone to errors than instruments with a smaller least count. Example, a ruler with a least count of 1 inch will not be able to record in decimal units whereas a ruler with a least count of 1 mm can make fine recording.
- Rigidity of box: If the box can shrink under different environmental conditions then there will inconsistencies in their recording. Cristal must have recorded its volume in cold temperature whereas Kyle must have recorded its volume in hot temperature. (<em>sounds odd but is true</em>)
Answer:
Half of the Moon's surface is always illuminated by direct sunlight, except during lunar eclipses when Earth casts its shadow on the Moon. Just how much of that light we can see from Earth varies every day, and we refer to this as a Moon phase.
Orbits: Earth
Explanation:
