Principles of Biology - Exam 2 (Questions)
Which of the following produces and modifies polysaccharides that will be secreted?
Golgi Apparatus
The glucose molecule has large quantity of energy in its....
C--H bonds
Which of the follow is not found in a prokaryote?
A mitochondrion
Which of the following is present in a prokaryotic cell?
A ribosome
All of the following are part of a prokaryotic cell except...
An endoplasmic reticulum
A chemical reaction that has a positive G is best described as...
Endogernic
The evolution of eukaryotic cells most likely involved
Endosymbiosis of an aerobic bacterium in a larger host cell--the endosymbiont evolved into mitochondria
Which of the following is a statement of the first law of thermodynamics?
Energy cannot be created or destroyed
Whenever energy is transformed, there is always an increase in the.....
Entropy of the universe
In a plant cell, DNA may be found...
In the nucleus, mitochondria, and the chloroplasts
Why is ATP an important molecule in metabolism?
It provides energy coupling between exergonic and endergonic reactions
Which of the following contains hydrolytic enzymes?
Lysosome
Which organelle is the primary site of ATP synthesis in eukaryotic cells?
Mitochondrion
A cell with a predominance of free ribosomes is most likely...
Primarily producing proteins in the cytosol
Large number of ribosomes are present in cells that specialize in producing which of the following molecules?
Proteins
Which structure is the site of the synthesis of proteins that may be exported from the cell?
Rough ER
Which type of organelle or structure is primarily involve in the synthesis of oils, phospholipids, and steroids?
Smooth ER
Catabolic pathways.....
Supply energy, primarily in the form of ATP, for the cell's work
In a bacterium, we will find DNA in...
The nucleoid
For living organisms, which of the following is an important consequence of the first law of thermodynamics?
The organism ultimately must obtain all the necessary energy for life from its environment
Which of the following is true of all exergonic reactions?
The reaction proceeds with a net release of free energy
Which organelle often takes up too much of the volume of a plant cell?
Vacuole
