Students in biology are studying the macromolecules of life. They used a calorimeter to determine the calories in various types of food. Once the lab was completed, the students ate the left over food samples. Monica commented
that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. Elaborate on what
happened chemically while chewing the saltine. Include the macromolecules present.
-)
A)
The saltine is made of flour, a carbohydrate. The flour dissolved in the
saliva found in Monica's mouth, which is mostly water.
B)
The saltine is mostly flour, a carbohydrate. The bonds of the carbohydrate
were broken down by an enzyme in Monica's mouth, which is a lipid.
The saltine is a combination of carbohydrate and lipid; enzymes or proteins
in Monica's digestive tract broken down the bonds of the two
macromolecules in the saltine.
The saltine is a carbohydrate, and digestion took place in Monica's mouth
thanks to enzymes or proteins. The blueprint for these proteins is located
on nucleic acids
D

What two fields of study provide the core information that is used to classify organisms?

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.