WorksheetsBiomolecules & Cells
Total questions: 20
Worksheet time: 12mins
What do both prokaryotic and eukaryotic cells contain?
membrane-bound organelles
linear chromosomes
cytoplasm
a nucleus
Which adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have?
chloroplasts
flowers
stomata
vascular tissue
What is the function of a restriction enzyme?
to control the movement of proteins into a cell
to regulate blood sugar levels
to produce hormones that regulate digestion
to cut DNA at a specific nucleotide sequence
Which molecules are joined together to make proteins?
fatty acids
nucleic acids
amino acids
acetic acids
Which word equation best represents the process of cellular respiration?
carbon dioxide + glucose → oxygen + water
carbon dioxide + water → glucose + oxygen
glucose + oxygen → carbon dioxide + water
oxygen + water → carbon dioxide + glucose
How does the body of a runner keep up with the demand for energy when cellular oxygen levels are low
through energy production in the mitochondria
through aerobic respiration in the plasma membrane
through ATP produced directly from sunlight
through anaerobic respiration in the cytoplasm
Which organic molecule would a long-distance runner most likely choose to eat two hours before a race?
A protein, because it builds muscle mass.
A lipid because it provides long term energy storage.
A carbohydrate because it releases energy quickly.
A protein, because it transports oxygen into the blood stream.
Glycerol and fatty acids are the monomers of _________.
Lipids
Carbohydrates
Proteins
Nucleic Acids
A student studies two different types of cells. The cell types are shown. Which two structures does this eukaryotic cell have that the prokaryotic cell does not?
ribosomes and chloroplasts
mitochondria and a nucleus
chromosomes and cytoplasm
flagella and a cell membrane
Oxygen in Earth's early atmosphere was generated by marine organisms such as cyanobacteria, which are sometimes called blue-green algae. By what process did cyanobacteria oxygenate the atmosphere?
fermentation
photosynthesis
protein synthesis
cellular respiration
A student fills a beaker with a 5% salt solution. The student places a dialysis bag containing a 15% salt solution into the beaker. Then the student measures the salinity of the salt solution in the beaker after five minutes. The dialysis tubing is permeable to salt and water.
Where will the water move???
INTO the dialysis tube
OUT of the dialysis tube
Students investigate how onion cells react to salt (NaCl) solutions of different concentrations. They observe onion cells in three different salt solutions under a microscope. The image of an onion cell in a 3% salt solution is shown on the left. What would the salt concentration for the onion cell on the right have to be?
1% salt
2% salt
3% salt
4% salt
What does the cell membrane do?
regulates what enters & exits cell
packages proteins
fluid inside cell
cleans up waste
provides energy
What does the cytoplasm do?
support & support plant
packages proteins
fluid inside cell
cleans up waste
provides energy
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably
Vaporized Water
Carbon Dioxide
Oxygen
ATP
What is the correct equation for cellular respiration?
6O2 + C6H12O6 —> 6CO2 + 6H2O + Energy
6O2 + C6H12O6 + Energy —> 6CO2 + 6H2O
6CO2 + 6H2O —> 6O2 + C6H12O6 + Energy
6CO2 + 6H2O + Energy —> 6O2 + C6H12O6
