MCB Quiz 3
The reactions involved in producing larger compounds from smaller compounds is called
Anabolism
Which of the following is NOT a step in bacterial cell division?
Disappearance of nuclear envelope
If you begin with six cells, how many cells would you have after three rounds of division?
Forty-eight cells
Which of the following molecules is broken down in cellular respiration, providing fuel for the cell?
Glucose
In which organism would you likely find a chlorosome?
Green sulfur bacteria
Drag the labels onto the equation to identify the inputs and outputs of cellular respiration.
1 Glucose + 6 O2 -> 6 CO2 + 6 H2O + ATP
Which energy-rich molecule directly powers cell work?
ATP
Where does the energy required for anabolic reactions come from?
Catabolic reactions
Which of the following statements is CORRECT regarding the figure?
Cells are alive but not reproducing during the stage represented by A.
Drag the labels onto the flowchart to indicate how the body uses food in cellular respiration.
Eating food provides fuel and building blocks for your body Afyter food is broken down in the digestive system, it is transported to cells via the circulatory system Fuel molecules are brokem down further in glycolysis and the citric acid cycle (also called the Krebs cycle) ATP is produced with the help of the electron transport chain
In metabolism, energy that is not used
Is given off as heat.
When cells are metabolically active but not dividing, they are in the ________ phase.
Lag
Which step of binary fission is the reason for genetically identical daughter cells?
Replication of the bacterial chromosome
What is the key difference between photoheterotrophs and photoautotrophs?
Photoheterotrophs use organic compounds as their carbon source; photoautotrophs use carbon dioxide as their carbon source.
What is the role of light energy in photosynthesis?
To produce a proton gradient to make ATP
Which of the following is a trait unique to photosynthetic eukaryotes?
The presence of chloroplasts
What results when a single bacterium reproduces?
Two genetically identical daughter cells
Which of the following is used in photosynthesis by both plants and cyanobacteria?
Water, sunlight, Carbon dioxide
What molecule is used to capture light energy?
chlorophyll
Which of the following is a bacterium that performs oxygenic photosynthesis?
cyanobacteria
The ________ of a population is the time it takes for the cells to double in number.
generation time
The use of amino acids to make proteins
is an example of anabolism.
Which of the following types of organisms uses hydrogen sulfide for reducing power?
purple sulfur bacteria
