HSA Review Lessons 6-9: Question Preview (ID: 1724)

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A cell is placed in a new solution. There is an 8% concentration of substances inside the cell, and a 12% concentration of substances outside the cell. The cell membrane is not permeable to these substances. Which of these best describes what will
a) Water will move out of the cell.
b) Water will move into the cell.
c) Substances will move out of the cell while water moves into the cell.
d) Substances will move into the cell.

Which of the following processes is required for sexual reproduction?
a) binary fission
b) budding
c) mitosis
d) meiosis

What is the role of a cell's flagellum?
a) to take in food
b) to excrete waste
c) to enable the cell to move
d) to give support to the cell

A scientist measured the pH of four fluids in an organism. Which fluid is a strong acid?
a) 13.4
b) 8.2
c) 7.0
d) 2.1

The ability to maintain a relatively constant internal temperature is an example of
a) inheritance
b) homeostasis
c) passive transport
d) metabolism

The pH of blood is relatively neutral. It is neither an acid nor a base. You would expect the pH of blood to be close to
a) 0
b) 4
c) 7
d) 14

Sodium ions are found at a lower concentration inside a cell than outside a cell. These ions move from areas of low concentration to areas of high concentration. This process is called
a) diffusion
b) active transport
c) osmosis
d) gradation

A single-celled organism is exposed to a toxin. What will most likely happen to the organism?
a) It will weaken or die.
b) It will grow larger and flourish.
c) It will absorb and feed off the toxin.
d) It will divide to become a multicellular organism.

The cell membrane of red blood cells contain channels through which glucose molecules can pass without the expense of energy. The glucose moves from an area of high concentration to an area of low concentration. This is an example of
a) mitosis
b) diffusion
c) fission
d) active transport

Clostridium tenani is a type of bacteria that produces a poisonous substance that causes tetanus in the human body. The most common form of the condition is characterized by a locked jaw, stiff neck, and stiff muscles. The poisonous substance is ca
a) a decomposer
b) a parasite
c) a toxin
d) a mutation

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