Unit 1.3 Biology test

In what type of cell would you most likely expect to find numerous lysosomes?

A white blood cell that digests bacteria and viruses.

What is not a statement of the cell theory?

All cells contain hereditary information

Scientists have discovered three new species of organisms in the Everglades. Below you will find information about the cells of each organism.... Nucleus Cell Membrane Mitochondria Cell Wall Organism A NO YES NO YES Organism B YES YES YES NO Organism C YES YES YES YES Based on the chart above which of the following best describes Organism B?

Animal

Scientists have discovered three new species of organisms in the Everglades. Below you will find information about the cells of each organism...... Nucleus Cell Membrane Mitochondria Cell Wall Organism A NO YES NO YES Organism B YES YES YES NO Organism C YES YES YES YES Based on the chart above which of the following best describes Organism A?

Bacteria

A researcher is using a microscope to observe the two unknown cells above. Which of the following explanations best explains the reasoning behind the correct identification of prokaryotic and eukaryotic cells?

Cell B represents a Eukaryotic Cell due to the presence of membrane-bound organelles

Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

Cells form through spontaneous generation.

Structure that looks like a system of flattened membranes, lipids and proteins are transported to it, and the structure modifies and distributes them to other parts of the cell.

Golgi complex

How can you tell if a diagram is of a eukaryotic cell?

If it has a nucleus and other organelles

Which of the following best explains the difference between passive and active transport within cell membranes?

Passive transport does not require chemical energy to occur; active transport requires the use of energy, such as ATP, to take place.

Which statement about mitochondria and chloroplasts is generally true?

Plants have chloroplasts and mitochondria; animals have mitochondria but no chloroplasts.

A red blood cell is 90% water. A red blood cell is suspended in an 11% water solution. A diagram is placed below. What will most likely happen to the red blood cell?

The cell will shrink

Based on this experiment, which of the following could be inferred about cells with selectively permeable membranes?

Water enters the cell when placed in environments of high water concentration.

If a substance is more concentrated in the cell than in the surroundings, which of the following processes would result in the movement of the substance into the cell?

active transport

The structure of a cell nucleus would be seen in the greatest detail by use of ____.

an electron microscope

What do plant cells have that animal cells don't?

cell wall and chloroplasts

What does an animal cell have that a plant cell does not?

centriole

What is a primary function of the cell membrane?

defending against foreign particles

Cells need to bring in water molecules to carry out cellular processes. This requires moving the molecules across the cell membrane. How do these molecules get into the cell?

passive transport by osmosis

A scientist treats a cell with a chemical that destroys the ribosomes. As a result, which cellular process will not be able to be performed as a direct result of a lack of functioning ribosomes?

protein synthesis

Scientific law and a scientific theory are similar in that both:

represent a large amount of scientific investigation and evidence.

Which cell structure is correctly paired with its primary function?

ribosome - protein synthesis

From the statements below which of the scientific advances most directly contributed to the development of the cell theory?

the improvement of the microscope and microscopic techniques

Which characteristic do most plants have in common?

they are photosynthetic

Which organelle is responsible for storing water and waste in the cell? Both plants and animals have them, but plants have a much larger version that also helps with support.

vacuole

At what point in the process of diffusion is dynamic equilibrium reached?

when there is continuous movement of molecules but no change in concentration