Assignment: Type Of Macro-Molecule

Assignment: Type Of Macro-Molecule
Assignment: Type Of Macro-Molecule
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25. What type of macro-molecule is frequently an enzyme?
Carbohydrate
Nucleic acid
Lipid
Protein
26. What function do enzymes perform?
Increase substrate concentration
Increase the temperature
Increase the activation energy required for a reaction to occur
Decrease the activation energy required for a reaction to occur
27. The most important aspect of cellular respiration is that ___________________
It is the process that occurs only in animal cells
It is the process that utilizes fat as its primary energy source
It is the process that enables living organisms to utilize the energy stored in glucose
It is the only cellular process that yields ATP
28. The statement best describes the relationship between plants and animals on earth is
Plants produce O2and sugars from CO2
Animals produce CO2and H2O from sugars and O2
Plants produce O2and sugars and animals produce CO2and H2O
Animals produce O2and sugars and plants produce CO2and H2O
29. What is the function of the ribosome?
Digestion
RNA duplication
Mobility
Protein synthesis
30. What is the function of the lysosome?
Prokaryotic digestion
Eukaryotic digestion
Prokaryotic mobility
Eukaryotic mobility
31. In what stage of the cell cycle is genetic content replicated?
Interphase
Prophase
Metaphase
Anaphase
Telophase
32. How many chromatids comprise a duplicated chromosome?
One
Two
Three
Four
33. Which of the following could not be a sequence of RNA?
GCGUUU
UAUGCG
ATGCGT
AUGCGU
AAACUG
34. The product of meiosis includes which of the following?
Haploid cells
Genetically unique cells
Four daughter cells
All of the above
A. and C. only
35. Often referred to as the Central Dogma, identify the traditional sequence of protein synthesis.
DNA->RNA->Protein
RNA->DNA->Protein
Protein->RNA->DNA
Protein->DNA->RNA
36. In humans, the allele for dimples (D) is dominant. The allele for not having dimples (d) is recessive. If a woman (DD) and a man (Dd) have four children, how many of the children will not have dimples?
0
1
2
3
4
37. Which of the following variations could be subject to natural selection?
A dog with short legs due to malnutrition is able to crawl into holes better than his litter mates.
A tree is not infested by a ground-dwelloing beetle when the homeowener cuts the lower branches.
A hyena is born with a spotted fur pattern that allows it to hide in the grass better than his litter mates.
A pigeon learns that’s when its keeper comes near, it will be fed.
All of these variations may be acted on by natural selection.