WorksheetsCells, Microscope and Cellular Transport
Total questions: 15
Worksheet time: 8mins
The 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?
All living things are made of cells.
All cells come from other preexisting cells.
Cells form through spontaneous generation.
Cells are the basic structural and functional units of life.
According to the cell theory, which of the following best describes the role of cells in living organisms?
Cells contain the same specialized organelles required for life in both prokaryotic and eukaryotic organisms.
Cells make up the tissues that are present in all forms of life.
Cells are produced spontaneously when living organisms need them.
Cells are the basic building blocks of all living organisms.
Which of the following best explains how the cell theory was developed?
Cells are so diverse that scientists had to come up with an explanation that would apply to all types of cells
Mutations occur and cause changes in cells so scientists could not develop a law that would apply to all forms of cells.
The cell theory is a well-tested explanation of observations that was formed from the contributions of several different scientists.
The cell theory was developed through extensive library research because it would be impossible to test all living things for the presence of cells.
Which of the following statements correctly identifies a way in which prokaryotic cells are different from eukaryotic cells?
Prokaryotic cells have flagella, while eukaryotic cells do not.
Prokaryotic cells have chloroplasts, while eukaryotic cells do not.
Prokaryotic cells only have free-floating DNA, while eukaryotic cells have DNA enclosed in a nucleus.
Prokaryotic cells only have cell membranes, while eukaryotic cells have both cell membranes and cell walls.
Which organelle is responsible for controlling the passage of water, nutrients and waste products into and/or out of the cell in order to help maintain homeostasis?
ribosome.
Golgi apparatus.
Mitochondrion.
cell membrane.
Which of the following correctly describes the function of the cell wall?
The cell wall is series of folded membranes that produces and distributes proteins in the cell
The cell wall is a network of fibers inside the cell that gives the cell its shape.
The cell wall is a barrier that allows certain substances into and out of the cell
The cell wall provides rigid support and protection for the cell
Which of the following is a gel-like substance that suspends organelles within a cell?
cell membrane
cytoplasm
nucleus
vacuole
Which of the following correctly matches an organelle with its function?
nucleus – make ATP
Mitochondria -- photosynthesis
Lysosome – breakdown of waste material
Golgi apparatus – manufacture of lipids
Proteins are one of the substances produced by cells. Which organelle is responsible for storing the genetic information responsible for the production of proteins?
Endoplasmic reticulum
Golgi Apparatus
Lysosomes
Nucleus
Plant cells contain a large central vacuole. If the vacuole of a plant cell were damaged, which of the following would most likely occur?
The plant would be unable to produce proteins.
The plant leaves would turn brown from losing pigmentation
The plant would flourish due to its ability to store excess water.
The plant would wilt due to the loss of water within the cells.
Which of the following structures are found in both plant and animal cells?
Nucleus, cell wall, and cytoplasm
Cell wall, nucleus, and mitochondrion
Mitochondrion, cytoplasm, and nucleus
Cytoplasm, mitochondrion, and cell wall
Which microscopes requires the specimen to be non-living in order to be observed?
Compound microscopes and dissection microscopes
Scanning electron microscopes and dissection microscopes
Transmission electron microscopes and scanning electron microscopes
Compound microscopes and transmission electron microscopes
Which of the following microscopes contains multiple objective lenses, creates a 2-dimensional image of the specimen being viewed, has a light source located below the specimen, and can be used to vie both living and non-living specimens?
Compound microscope
Dissection microscope
Transmission electron microscope
Scanning electron microscope
In humans, oxygen (O2) and carbon dioxide (CO2) are exchanged between the alveoli in the lungs and the blood in the circulatory system. Which of the following processes allows for the exchange of these gases in the human body?
Osmosis
Simple diffusion
Active transport
Facilitated diffusion
An osmosis investigation was conducted using chicken eggs to represent cells with semipermeable membranes. The eggs were first soaked in vinegar to dissolve the shell. Each egg was then placed in one of three different solutions for 24 hours. The mass of each egg was measured to determine how much water diffused into or out of the eggs. The table below shows the results of the investigation.
Based on this experiment, which of the following should be inferred about cells with semipermeable membranes?
Substances other than water may also cross the cell membrane.
Substances other than water may block pores in the cell membrane
Water enters the cell when placed in environments of higher water concentration
Water leaves the cell when placed in environments with a low concentration of solutes
