EOC Review #14

Which process requires energy from food to help a cell maintain homeostasis?

• A phosphate ion being released from ATP

• A phosphate ion being added to ATP

• The conversion of glucose to oxygen

• The creation of RNA from DNA

How are ATP molecules different from ADP molecules?

• ATP molecules have more hydrogen bonds than ADP molecules do

• ATP molecules have more high energy bonds than ADP molecules do

• ATP molecules have more ribose molecules than ADP molecules do

• ATP molecules have more nitrogenous based than ADP molecules do

This image shows a cell. The dark structures are chromosomes.

What stage of the cell cycle is this cell experiencing?

• G1

• S

• G2

• M

This is an image of solute particles diffusing through a plasma membrane. Diffusion can only occur if which statement is true?

• The cell has ATP available

• The solute particles are small enough

• The cell has transport proteins specific to the solute

• The solute particles are fat-soluble

The phylogenetic tree shows the evolutionary relationships among different snake

species.

Which species share the most recent common ancestor?

• pythons and elapids

• vipers and asps

• blind snakes and vipers

• asps and colubrids

Which action will occur if a checkpoint during the cell cycle finds that the DNA was

unsuccessfully replicated?

• The cell will divide quicker with less DNA.

• The cell will grow proteins to replace DNA.

• The cell will perform the cell cycle in reverse.

• The cell will not complete the cell cycle.

A cell is grown in a growth medium in a laboratory. The growth medium provides

nutrients to the cell.

The cell performs two rounds of cellular division, as shown.

How many copies of the original DNA molecule will there be after the second round of

division?

• one

• two

• four

• eight

The image shows asexual reproduction by budding in yeast.

How does this mode of reproduction benefit a yeast population?

• It allows the yeast population to produce a large number of offspring rapidly.

• It allows the yeast population to increase the size of older parent cells gradually.

• It allows the yeast population to survive without food in their environment.

• It allows the yeast population to eliminate harmful mutations from their genetic material.

Which of these is a consequence of reduced cellular respiration rates in a cell?

• There will be an unstable change in cellular pH that will disrupt cell activities

• There will be an increased level of ATP in that cell

• There will be a reduced level of cellular activities that require energy

• There will be a reduced amount of glucose molecules available in the cell

The model shows the coding for a trait.

Which part of the model best represents a gene?

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