Question: Which of the following statements describes the function of a chloroplast?
It aids in intracellular digestion.
It stores water.
It converts light energy into chemical energy.
It converts chemical energy into heat energy.
Question: The concentration of calcium in a cell is 3%. The concentration of calcium in the surrounding fluid is 1%.
How could the cell obtain more calcium?
passive transport
active transport
diffusion
osmosis
Question: How could the cell obtain more calcium?
passive transport
active transport
diffusion
osmosis
Question: What function does the nucleolus have?
contains enzymes for intracellular digestion
contains the majority of cellular DNA
houses the chromatin
codes for the synthesis of ribosomal RNA
Question: A cell being observed under a microscope is seen to possess a cell wall, plasma membrane, ribosomes and chromosome material that are not found in a nucleus. Based on this, it could be
a cell from a cactus.
a cell from a mushroom.
a cell from a bacterium.
a cell from a fish.
Coupled reactions
liberate energy trapped in enzymes
are energy releasing and energy consuming reactions happening side by side.
Question: singular cell organism. The best device to do this would be a ___________.
unaided eye
light microscope
magnifying glass
dissecting microscope
Which of these words does not belong with the rest as it relates to concentration gradient?
passive transport
active transport
diffusion
osmosis
When a car burns gasoline, much of the energy is in the form of heat as the car is driven. Which of the following best describes this in relation to the 1st law of thermodynamics?
Energy can be changed from one form to another.
All energy comes from the sun.
Energy is always used up in reactions.
Energy is often destroyed.