Biology for McCoy Test 3
Which structure in the picture is responsible for processing simple carbohyrates into ATP for cellular use?
3
In this picture, which structure maintains separation between the internal and external environment of the cell?
5
How does diffusion differ from endocytosis and exocytosis?
Diffusion does not require energy input from the cell.
Molecule B could exit the cell as a direct result of
Passive Transport
Imagine two rigid chambers separated by a rigid membrane that is freely permeable to water but impermeable to glucose. Side 1 contains a 10 percent glucose solution and side 2 contains pure water. At equilibrium, what will be the situation?
The hydrostatic pressure (water pressure)) will be higher in side 1
Which of the following statements explain why the nucleus is important to cells?
The nucleus contains coded instructions for making proteins.
Which of the following diagrams represents the correct cycling of gases?
a
Identify the most specific type of movement for the diagram of this cell
active transport
When Streptococcus pneumoniae are exposed to an antibiotic, the bacteria try to pump the antibiotic out of their cells. Which of the following mechanisms is most likely used by the Streptococcus pneumoniae to pump the antibiotic out of their cells?
active transport
How do you make a hypertonic solution become isotonic?
add more water
Diffusion is the movement of molecules from
an area of high concentration to an area of low concentration
You will NOT find a cell wall in which of these kinds of organisms?
animals
Which list represents the levels of organization in a multicellular organism from the simplest level to the most complex level?
atom, molecule, cell, tissue, organ, organ system, organism
Which of the following organisms are prokaryotes?
bacteria
In which of the following ways does perspiring help the body to maintain homeostatis?
by decreasing body temperature
Sunlight is the ultimate source of energy for all life on Earth. However, only organisms that have the organelle labeled A in their cells are able to make uses of its energy directly. What is organelle A?
chloroplast
Which organelle converts would you expect to find in a plant cell but not animal cells?
chloroplast
What term describes the difference in concentration of a substance from one location to another?
concentration gradient
Identify the most specific type of movement for the diagram of this cell
diffusion
Which of the following responses best describes what the diagram at the right is demonstrating?
diffusion
Identify the most specific type of movement for the diagram of this cell
diffusion and active transport
Identify the most specific type of movement for the diagram of this cell
equilibrium/homeostasis
Which of the following contain a nucleus?
eukaryotes
Amino acids, sugars, and ions move across the cell membrane. Their movement from a region of high concentration to a region of low concentration is accomplished by special proteins in the membrane. Which of the following terms applies to this type of cell transportation?
facilitated diffusion
If water is flowing out of a cell it is . . .
hypertonic
If water is flowing into a cell
hypotonic
In which kind of solution would water move from the solution into the cell?
hypotonic
The skin swells and puckers during a long bath. This suggests that bath water is a(n) ________ to your skin cells.
hypotonic
Water will flow
in both directions
Water will flow
into the cell
Which organelle breaks down materials or structures into molecules the cell can use or repurpose?
lysosome
What tool did scientists use to gather observations to form the cell theory?
microscope
Which organelles help provide cells with energy
mitochondria and chloroplasts
Which organelle converts the chemical energy stored in food into compounds that carry out life functions the cell can use?
mitochondrion
the diagram here represent some events that take place in plant cells?
mitochondrion
When the concentration of molecules on both sides of a membrane is the same, the molecules will
move across the membrane in both directions
Identify the most specific type of movement for the diagram of this cell
osmosis
The diffusion of water across a selectively permeable membrane is called
osmosis
Water will flow
out of the cell
The gas in this investigation is
oxygen
Certain types of small molecules across the plasma membrane without the cell exerting any energy. This type of movement is an example of
passive transport
What materials make up a cell?
phospholipids and proteins
Which process is best illustrated by the diagram?
photosynthesis
Which of the following is a function of the cell membrane?
regulates which materials enter and leave the cell
What structure makes proteins using coded instructions that come from the nucleus?
ribosome
The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide and glucose to pass through. Because other substances are blocked from entering, this membrane is called?
semi-permeable
The cell will
shrink
The cell will
stay the same
Which of the following is an organ of the digestive system?
stomach
The cell will
swell/burst
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
water to move into the cell
