Quarter exam part 3

Orlando wrote on separate index cards four facts he learned about cells. The four facts Orlando wrote are listed below.. Cells come only from existing cells. 2. All cells contain hereditary information. 3. All living things are made of one or more cells. 4. A cell is the basic unit of structure and function for all living things. He shuffled the index cards, spread them out on his desk, and asked Martha to pick out the cards that described the cell theory. Which cards did Martha correctly select? A. 1, 2, and 3 B. 1, 2, and 4 C. 1, 3, and 4 D. 2, 3, and 4

1, 3, and 4

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

A white blood cell that digests bacteria and viruses.

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

Based on the figure above, which structures are present in both animal and plant cells? A. A, C and F B. B, C and E C. C, D and E D. A, B and D

C, D, E

Cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

Cells form through spontaneous generation

What is a primary function of the cell membrane?

Defending against foreign particles

Laura is trying to identify a structure that she has found inside the cells she is studying. The structure looks like a system of flattened membranes. Laura discovers that lipids and proteins are transported to the structure, and the structure modifies and distributes them to other parts of the cell. What structure has Laura found?

Golgi complex

What 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 of the following statements about mitochondria and chloroplasts is generally true?

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

Which cell structure is correctly paired with its primary function? A. ribosome - protein synthesis B. mitochondrion - movement C. vacuole - cell division D. nucleus - storage of nutrients

Ribosome - protein synthesis

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 would shrink

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

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.

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