Answer:
c) Because enzymes are proteins, they have a very specific order of amino acids that make up their structure (including the active site), meaning that only one key can fit in. The active site, or "lock" will recognise the substrate or "key" and will only let that one in and therefore can only catalyse a specific reaction.
b) the transcription process delivers information from the DNA to the protein-building machines.
Explanation:
I'm sorry I could only these question, I don't understand 3 a) question, hope this helps!
17. The SI unit for force is N.
18. When an Unbalanced force acts upon and object, the object will change speed and/or direction of motion.
19. Average speed is the speed averaged over a span of time. Instantaneous speed would be the speed at any given instance during that span of time.
20. Acceleration= (final velocity - initial velocity) / time
Final velocity= 0 m/s
Initial velocity= 25 m/s
Time = 40 sec.
So, acceleration (0 - 25) m/s / 40 sec.
Acceleration = -0.625 m/s^2
Answer:
The answer is the 4th one.
Explanation:
Observing the data, we can see a relationship between the amount of light exposure and the amount of bubbles (oxygen) produced in photosynthesis.
As the distance from the light source increases, we see the number of bubbles decrease. We can establish that semi-linear relationship, therefore eliminating option 2.
Option 3 is not directly related to the data in the table, but rather about the inner workings of photosynthesis.
That leaves us with option 1 and option 4. They are both correct, and can be interpreted from the data provided; however, option 1 is vague, and does not use specific data points, only a relationship derived from them.
Therefore, by elimination of options, we can clearly see the correct option is the 4th one.
Intrusions, extrusions of igneous rocks, and faults and gaps all share a common feature, that is, they help geologists and scientists in determining the relative age of rocks.
Igneous rock is produced when the lava or magma hardens. The lava, which toughens on the surface is known as extrusion. The layers of the rock below an extrusion are always older in comparison to the extrusion. Within the surface, magma may push within the bodies of rock. There, the magma cools and hardens into a mass of igneous rock known as an intrusion.
An intrusion is always younger in comparison to the layers of rock around and beneath it. Even more, clues come from the examination of faults. A fault refers to a break in the crust of the Earth. A fault is always younger in comparison to the rock it cuts through.