Cell
Structure
Structure
Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?
Proteins
What is a prion
Infectious protein molecule
Microtubules, microfilaments and intermediate filaments are components of the?
Cytoskeleton
Where does glycolysis take place?
What is cytosol
What is the primary function of the Calvin cycle?
What is synthesize simple sugars form carbon dioxide
What primarily determines the shape of cells that lack cell walls?
Cytoskeleton
Viruses that specifically infect bacteria are known as?
Bacteriophages
Passive movement of a molecule across a biological membrane requires _______ and moves a substance ______ its concentration gradient
transport proteins and down
Exergonic reactions are those that are ________ and that ________ release free energy
spontaneous and do
In any ecosystem, terrestrial or aquatic, what group(s) is/are always necessary for energy assimilation?
What is autotrophs
What is the organelle and its function
#31
The mitochondria Consumes O2
Explain the lysogenic cycle
Virus DNA is blends with the host DNA and is passed down to more cells through cell division without disrupting the cell
Which one of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?
active transport
What is the role of mitochondria?
To perform cellular respiration which converts ATP to ADP
"Synthesis of ATP from ADP"
The reactant in an enzyme-catalyzed reaction is called the
What is a substrate
What is its name and function
#32
Nucleolus: Where Ribosomal RNA and proteins are assembled
The name and a example of a virus that has RNA instead of DNA
Retrovirus and an example is HIV
A cell whose cytoplasm has a concentration of 0.02 molar glucose is placed in a test tube of water containing 0.02 molar glucose. Assuming that glucose is not actively transported into the cell, which of the following terms describes the tonicity of the external solution relative to the cytoplasm of the cell?
Isotonic
How many molecules of ATP are produced from the complete oxidation of one molecule of glucose?
38
A multi-step biochemical process in which the rate of an early step is inhibited by the concentration of products of a later step is said to be subject to
What is feedback control
What is the name and function
#33
Rough ER modifies glyco(proteins) & lipids
Graph: Which of the following bests describes the reaction?
negative △G, spontaneous
You recently identified a new protein that crosses the plasma membrane. Which of amino acids would you expect to be most common in the middle of the plasma membrane?
Nonpolar
Every turn of the citric acid cycle directly produces ________ molecule(s) of ATP
1
When a molecule similar to the correct substrate interacts with the active site of an enzyme, the process is called
What is Competitive inhibition