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WorksheetsCell Structure, Genetics, Taxonomy, System Interactions
Total questions: 20
Worksheet time: 10mins
A prokaryotic and eukaryotic cell are shown. Which characteristic best distinguishes these cells as either prokaryotic or eukaryotic.
the organization of the genetic material
the location of the cytoplasm
the role of the cell membrane
the function of flagella
Students use a microscope to look for structures present in four different cells. The students placed an X for each structure that was viewed for each cell on the table shown. Which cell that was viewed is most likely a prokaryote?
Cell W
Cell X
Cell Y
Cell Z
Which type of movement across a cell's plasma membrane requires energy supplied by ATP?
Passive transport
simple diffusion
Active transport
osmosis
A type of cellular transport is shown:
active transport because energy is being used to move molecules against the concentration gradient
facilitated diffusion because energy is being used to move molecules with the concentration gradient.
osmosis because energy is not being used to move molecules with the concentration gradient.
endocytosis because energy is not being used to move molecules against the concentration gradient
Which model accurately shows a cell progressing through mitosis?
Which table best compares the events that occur during different stages of the cell cycle?
The diagram shows the major stages of the cell cycle and the percentage of time spent in each phase. Which statment best describes why a cell spends the majority of its time in interphase?
The cell is growing and carrying out processes such as metabolism and DNA replication
The cell is aging and processes are stopping as lysosomes clear dead cell matter away
the cell needs time to synthesize spindle fibers to complete mitosis
the cell needs time to complete cytokinesis
The activities in the cell cycle occur during specific phases. In which phases of the cell cycle is DNA replicated?
Mitosis
G1 Phase
G2 phase
S phase
A model of transcription and a codon chart a shown. Which amino acid would be coded first from the DNA strand being transcribed?
Cys
Phe
Ile
Met
a model of a biological process is shown. What is the purpose of this process?
to replicate the DNA of an organism before cell division
to assemble nucleotides in an mRNA chain along a DNA Template
to synthesize amino acids used to unzip strands of DNA and copy the genetic code
to translate the genetic code into a specific sequence of amino acids
The initial steps in gene expression are modeled below. Double stranded DNA first unwinds into two strands. WHICH process and product are represented in DIAGRAM 2?
Process: transcription
Product: mRNA
Process: translation
Product: protein
Process: replication
Product: tRNA
Process: recombination
Product: polymerase
A section of a nucleic acid is shown below. The process represented in the diagram produces a molecule that is complementary to the template strand of DNA. What type of molecule is produced?
New DNA
polypeptide
messenger RNA
carbohydrate
Why is it important to assign each organism a scientific name?
Each scientific name applies to only one species making it universally identifiable to scientists.
Each scientific name allows scientists to better study the behavior of an organism.
the scientific name allows scientists to develop common names for organism
the scientific name describes how an individual looks relative to others of the same genus
Having a standard taxonomic system benefits the scientific community by allowing scientists from all over the world to do which of the following?
have a common system for the classification of locations containing fossils.
Use a similar system to classify the impact of removing species from ecosystems
have a common understanding in the classification of organisms
understand how other scientists classify predator - prey relationships
Scientists around the world use a standardized taxonomic system. Why would scientists want to use a taxonomic system that is standardized?
In order to avoid confusion with the identification of organisms
because Linnaeus established the system
so that Latin names can be applied for a practical purpose
in order to place organisms in different groups
Which sequence represents the levels of organization found in multicellular organism from smallest to largest?
Cell -> tissue -> organ -> organ system
Organ system -> organ -> tissue -> cell
Tissue -> organ -> organ system -> cell
cell -> organ system -> organ -> tissue
students construct a graphic organizer to illustrate the different levels of biological organization
cell
organism
ecosystem
biosphere
Which of the following functions as the same organizational level as the kidney in the human excretory system?
skeleton
epithelial tissue
urinary bladder
a squamous cell
Recent studies in bone research indicate that using ultrasound on a broken bone can decrease healing time by 25%. Which of these are the most basic levels of organization involved when a bone heals?
Cells and tissue
Cells and organ system
Organ system and organism
tissue and organ system
The diagram shows some of the levels of biological organization
Population -> Community -> Ecosystem
Organism-> Community -> Population
Organism-> Population-> Community
Ecosystem -> Population-> Community
