6: Organelles
Which microscope focuses a beam of electrons through a specimen to help study the internal structure of a cell
TEM
What kind of permeability does the cell membrane have?
Selective
Metabolism is the total of an organism's _________ reactions.
Chemical
What is the second step in cellular respiration?
Pyruvate Oxidation
Where do heterotrophs obtain their carbon from?
Other organisms
What two domains make up prokaryotes?
Bacteria & Archaea
At ______ temperatures, cholesterol restrains the movement of the lipid membrane.
Warm
A ___________ pathway releases energy by breaking down complex molecules into simpler compounds.
Catabolic
What are the two locations that cellular respiration takes place?
The cytoplasm and the mitochondria.
What are the pores in leaves called?
Stomata
Cell membrane, ribosomes, cytosol, chromosomes
There are two types of transport proteins: Carrier and Channel. Which one of these contains a hydrophilic center that certain molecules and ions can pass through?
Channel proteins
Is an exergonic reaction spontaneous or nonspontaneous?
Spontaneous
What is the maximum number of ATP that can be made from one glucose molecule in fermentation?
What are the two steps to photosynthesis?
Light reactions and the Calvin Cycle
What component of plant cells carries nutrients and water up from the soil throughout the plant?
Xylem
Which kind of membrane protein is bound to the surface? (Does not cut all the way through)
Peripheral Protein
If an inhibitor binds to another part of the enzyme, causing it to change shape, is it a competitive or noncompetitive inhibitor?
Noncompetitive
If a reactant molecule that contains hydrogen turns into a product without hydrogen, was the molecule oxidized or reduced?
Oxidized
Which photosystem is best at absorbing a 700 nm wavelength?
Photosystem I
What are the flattened membranous sacs of the Golgi Apparatus called and what is their purpose?
Cisternae, increase surface area
If a plant cell is in a hypertonic solution, the cell will become ____________, and the membrane will pull away from the cell wall.
plasmolyzed
This kind of regulation may either inhibit or stimulate an enzyme’s activity
Allosteric
What are the two steps to oxidative phosphorylation and which step makes more ATP?
Chemiosmosis and the Electron Transport Chain; Chemiosmosis
What is the most abundant enzyme in the world?
Rubisco