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WorksheetsCell processing test
Total questions: 20
Worksheet time: 5hrs 0mins
A type of cellular respiration is shown, which description best identifies this type of cellular transport?
Active transport , because energy is being used to move molecules against the concentration gradient
Facilitated diffusion , because energy is being used to move molecules wit the concentration gradient
Osmosis , because energy is not being used molecules with the concentration gradient
Endocytosis because energy is not being used to move molecules against the concentration gradient
In the study of physical endurance, researchers observed significant increases in the heart rates and breathing rates of participants immediately after they engaged in strenuous exercise .
Which statement best explains the increase in the heart rate and the breathing rate during exercise?
the water concentration in the blood increases
Body cells require increased oxygen as energy is expended
muscles cells increase in temperature and require fluid to reduce the temperature
an increase in muscle activity causes increase in glucose levels in red blood cells
The diagram illustrates the activities of vesicles during cellular process. Which statement best explains the functions of the vesicles
Delivering packaged materials to the Golgi apparatus for proteins synthesis
Exchanging genetic information between the Golgi apparatus of separate cells
Extracting portions of the Golgi apparatus to be regenerated for growth within the cell
Transporting packaged molecules from the Golgi apparatus to be released out of the cell.
When mammals get an infection, their internal body temperature often rises 2 to 3 degrees Celsius. the body gets the energy it needs to react to an infection by-
increasing the rate for cell division
decreasing the rate of glucose movement into the cell
increasing the rate of cellular respiration in mitochondria
decreasing the rate at which carbon dioxide is removed from the cell
The picture shows a contractile vacuoles of a unicellular freshwater organisms. the contractile vacuole regulates the flow of water into and out of the cell in an aquatic environment. What conditions cause the contractile vacuole to fill with water?
the concentration of water is greater outside the cell than inside the cell
the temperature of water in the vacuole is higher then the temperature of the environment
the concentration of water inside the cell is the same as the concentration outside the cell
the temperature of the water in the vacuole is lower than the temperature of its environment.
This diagram shows cellular activity across a cell membrane .
Which two processes does this diagram most directly modeled?
energy conversions and synthesis of new molecules
synthesis of new molecules and homeostasis
transport of molecules and energy conversion s
homeostasis and transport of molecules
Cells can generate as many as 36-38 molecules of adosopine triphosphate (ATP) from the metabolism of one molecule of glucose. which cellular process results in this amount of ATP production?
anaerobic cellular respiration
proteins synthesis
aerobic cellular respiration
photosynthesis
Some students used vinegar to dissolve away the shells of three eggs and used these eggs as modules of human red blood cells. the students observed the changes in the eggs when they were placed in different solutions.
Which statement best describes the role of the cell membrane in this model?
The cell membrane is an impermeable barrier that prevents water from entering the cell
the cell membrane allows solutes to enter the cell which causes the cell to shrink
the cell membrane allows water to enter and leave the cell
the cell membrane removes solutes from the environment.
Which group of organelles is directly responsible for the production of new molecules within a cell
Ribosomes the endoplasmic reticulum and Golgi apparatus
Golgi apparatus , lysosomes ,and the plasma membrane
the endoplasmic reticulum , plastids and vacuoles
the nucleus vacuoles and ribosomes
Which of these statements best explains the process of energy conversions that take place in the mitochondria?
Energy is required for carbon dioxide molecules to form six carbon sugar molecules
water molecules and radiant energy are necessary for anaerobic respiration to take place
oxygen molecules release energy in the forum of heat during combustion reactions
the energy in the bonds of glucose molecules is transferred to the phosphate bonds in ATP
The activities in the cell cycle occur during specific phases in which phase of the cell cycle is DNA replicated?
Mitosis
G1 phase
G2 phase
S phase
This model of the cell cycle includes two arrows that each represent a process in the cycle . what do the two arrows represent?
Arrow one represents prophase and arrow two represents interphase
arrow one represents mitosis and arrow two represent meiosis
arrow one represents interphase and arrow two mitosis
Arrow one represents meiosis and arrow two represents prophase
part of the cell cycle is shown in this simplified model. this part of the cell cycle is best described as the process that-
duplicates the DNA
completes cell division
maintains the genetic homeostasis
synthesize new molecules
people who have leukemia , a cancer that affects white blood cells , are often given Cytrabine this drug inhibits the synthesis of DNA which phase of the cell cycle is most affected by Cytrabine?
G1 phase
S phase
G2 phase
M phase
scientist can bioengineer skin in a laboratory tot treat severe burns and other types of skin injuries. This bioengineered tissue is grown from living cells. the cellular process that enables the cells to grow and develop into tissues is-
conjugation
meiosis
budding
mitosis
Checkpoints occur between the stages of the cell cycle. if a cell does not meet certain criteria at the end of a stage it will not move to the next stage . Which of these occurs just before the cell enters the G2 phase stage of the cell cycle?
the nuclear membrane disintegrates
DNA replicates
Centrioles forum
the nucleus divides
a photo micrograph of onion root tip cells during mitosis is shown . Which phase of mitosis is occurring in the cell indicated by the arrow?
prophase
metaphase
anaphase
telophase
when cells lose their ability to regulate the cell cycle they can divide at an accelerated rate and forum a mass of cells this mass of cells is referred to as
a tumor
an embryo
a gland
an organ
A terrestrial food web is shown below.
which of the following lists only organisms that are secondary consumers in this food web?
mice , rabbits , herbivorous insects , and squirrels
spiders foxes owls hawks and snakes
predacious insects toads spiders and foxes
insectivorous birds seed eating birds owls and hawks
A student groups different types of cells as shown. Which table heading should the student use for the two groups?
animal cells and plant cells
prokaryotic cells and eukaryotic cells
mobile cells and motile cells
fungal cells and bacterial cells
