Exam 5: The Working Cell

The act of a white blood cell engulfing a bacterium is ________.

Usually,enzymes are ________.

A cell that neither gains nor loses a net amount of water at equilibrium when it is immersed in a solution is ________.

Which of the following processes could result in the net movement of a substance into a cell,if the substance is more concentrated in the cell than in the surroundings?

Substances that plug up an enzyme's active site are ________.

In a hypotonic solution,a plant cell will ________.

Read the following scenario to answer the following question(s). Cellular respiration converts the energy of fuel molecules to a form of energy that a cell can use to perform work.In an average day,most adult humans need to consume about 2,000 Calories to maintain their health.However,the exact amount of dietary Calories a person needs depends upon many factors,including the person's age,physical activity,size,and health.Foods that we consume vary greatly in their nutritional content and quality.A large hard-boiled egg,for example,has about 75 dietary Calories and contains about 70% of our recommended daily intake of cholesterol. -Molecules that come from the food we eat provide energy for the amazing work that goes on inside of our cells.This energy,stored inside of our food,is a form of ________.

Which one of the following is TRUE?

You have a 2-kg bottle of liquid water at 0°C.About how many Calories are needed to heat up the water to 100°C?

Anything that prevents ATP formation will most likely ________.

When two solutions that differ in solute concentration are placed on either side of a selectively permeable membrane,and osmosis is allowed to take place,the water will ________.

The region of an enzyme to which a substrate binds is called the ________ site.

On a lab bench,there are four balloons filled with identical volumes of different salt solutions: 0% (balloon A),5% (balloon B),10% (balloon

Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell.The presence of these organelles tells you that the environment ________.

An object at rest has no ________ energy,but it may have ________ energy resulting from its location or structure.

A rock on the top of a mountain contains ________ energy.

Diffusion ________.

When a person cries,tears are exported from cells through the process of ________.

A balloon permeable to water but not to glucose contains a 10% glucose solution.A beaker contains a 5% glucose solution.What will happen when the balloon is submerged in the beaker?

The amount of dietary Calories in one hard-boiled egg could raise the temperature of ________.