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20 questions
Which statement best describes a difference between prokaryotic cells and eukaryotic cells?
The presence of both DNA and ribosomes in prokaryotic cells indicates that they are more complex than eukaryotic cells.
The larger size of prokaryotic cells indicates that they are more complex than eukaryotic cells.
The presence of membrane-bound organelles in eukaryotic cells indicates that they are more complex than prokaryotic cells.
The larger size of eukaryotic cells indicates that they are more complex than prokaryotic cells.
Lungs and capillaries both have porous linings that allow certain substances to move into or out of the structures. Which function do these porous linings most likely serve in living organisms?
heat release
gas exchange
carbohydrate absorption
osmotic pressure regulation
Human heart cells require a constant release of energy to function continuously. Which of these structures would be numerous in such cells to meet this demand?
plasma membrane
Golgi apparatus
mitochondria
smooth endoplasmic reticulum
Which structure and function are common to all plants and some protists and distinguish them from all animals?
chloroplasts that conduct photosynthesis
mitochondria that conduct photosynthesis
chloroplasts that conduct cellular respiration
mitochondria that conduct cellular respiration
Which level of organization is made up of a group of different tissues working together to perform a complex function?
cell
tissue
organ
organism
Which characteristic is shared by both prokaryotes and eukaryotes?
have organ systems
make their own food
contain genetic material
need oxygen gas to breathe
Which structure is not present in all organisms?
a cell wall
a plasma membrane
genetic material
cytoplasm
Most prokaryotes and eukaryotes maintain a reserve of ATP. Which feature of prokaryotes and eukaryotes makes the ATP reserve necessary?
They have cell membranes.
They can change over time.
They use energy to function.
They have the ability to reproduce.
Which do the cells of an E. Coli bacterium and an elephant have in common?
ribosomes to assemble proteins
mitochondria to produce energy
chloroplasts found around the vacuole
chromosomes located in the cytoplasm
A cell from which organism would most likely be smallest?
a sugar maple tree
a five-spotted ladybug
a Saccharomyces yeast
a Lactobacillus bacterium
Which characteristic is shared by all prokaryotic and eukaryotic organisms?
the ability to reproduce asexually
the ability to make their own food
the need for a source of energy
the need for oxygen for respiration
Which statement correctly pairs the organelle with its function?
The vacuole stores genetic information.
The chloroplast synthesizes proteins from amino acids.
The nucleus absorbs the sun's energy for photosynthesis.
The plasma membrane controls the flow of materials into the cell.
Which of the following is essential to proper functioning of all prokaryotic and eukaryotic organisms?
ATP
NaCl
Which sequence is arranged from simplest to most complex?
squamous cells → epithelial tissue → skin → integumentary system → human
squamous cells → skin → integumentary system → epithelial tissue → human
human → integumentary system → squamous cells → skin → epithelial tissue
human → squamous cells → skin → epithelial tissue → integumentary system
Two types of tissues that compose the stomach organ are epithelial and connective. Which function of epithelial tissues distinguishes them from connective tissues?
They support and link to other tissues.
They churn and move food through the stomach.
They transit messages rapidly through the body.
They line the inner and outer surfaces of the stomach.
Which characteristic of life is best shown by this diagram?
DNA is the genetic code in an organism.
An organism is made of one or more cells.
An organism responds to changes in its environment.
Changes occur in an organism as it grows and develops.
Which statement best explains why these cells have structural differences?
The cells have different functions.
The cells evolved in different organisms.
One of the cells develops into the other type of cell.
One of the cells is more primitive than the other cell.
A scientist observes a single-celled organism with several long, whip-like tails. Which function do the whip-like tails most likely perform for the organism?
defense against predators
movement through an environment
detection of the location of a light source
measurement of atmospheric temperature changes
Life functions are performed at many levels of biological organization. Which level of biological organization is the simplest level at which a structure can support life functions?
cell
tissue
organelle
organ system
Which statement best compares eukaryotic cells and prokaryotic cells?
Eukaryotic cells are smaller than prokaryotic cells.
Prokaryotic cells are more complex than eukaryotic cells.
Prokaryotic cells contain a distinct central organelle, and eukaryotic cells do not.
Eukaryotic cells contain membrane-bound organelles, and prokaryotic cells do not.
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