NEW
Font size
WorksheetsCategory 1 EOC Qs
Total questions: 12
Worksheet time: 6mins
B.4.A
The picture shows a student using a microscope to study a prepared slide of a single-celled organism. A single-celled organism can be classified as a prokaryote based on the absence of -
a cell membrane
ribosomes
chromosomes
a nucleus
B.4.A
Some students used information they gathered from lab investigations to prepare a table. They entered the table in their lab notebooks.
Which of these correctly identifies the two cells described in the table?
cell 1 is a eukaryotic, and cell 2 is prokaryotic
cell 1 is prokaryotic, and cell 2 is eukaryotic
both cell 1 and cell 2 are eukaryotic
both cell 1 and cell 2 are prokaryotic
B.4.B
Cells can generate as many as 36 - 38 molecules of adenosine triphosphate (ATP) from the metabolism of one molecule of glucose. Which cellular process results in this amount of ATP production
Anaerobic cellular respiration
Protein synthesis
Aerobic cellular respirtaion
Photosynthesis
B.4.B
Some students used vinegar to dissolve away the shells of three eggs and used these eggs as models of human red blood cells. The students observed the changes in the eggs when they were places in different solutions.
Which statement best describes the role of the cell membrane in this model?
The cell membrane is an impermeable barrier that prevents water from entering the cell
The cell membrane allows solutes to enter the cell, which causes the cell to shrink.
The cell membrane allows water to enter and leave the cell.
The cell membrane removes solutes from the environment.
B.4.C
A photograph of a virus is shown below. The projections on the surface of this virus allow the virus to -
move inside a host cell
attach to a host cell
control a host cell's DNA
signal other viruses to infect a host cell
B.4.C
The picture shows a 3D model of a virus called a bacteriophage. Bacteriophages can infect bacteria such as E. coli. In what way are the bacteriophage and E. coli alike?
they contain antibodies
they reproduce by mitosis
they have identical genomes
they lack membrane bound organelles
B.5.A
A photomicrograph of onion root tip cells during mitosis is shown below. Which phase of mitosis is occurring in the cell indicated by the arrow?
prophase
metaphase
anaphase
telophase
B.5.A
The model represents the change in the DNA content of a cell during the cell cycle. Which part of the model represents the S phase?
I
II
III
IV
B.5.B
Most plants have hair-like cells called trichomes that project from the surface and help the plants in many ways. In some plants trichomes secrete toxic substances that most likely perform which function?
absorb carbon dioxide
protect against herbivorous insects
reflect light off leaves
reduce water loss from evaporation
B.5.B
Some components of cells are listed. Which of the components could be observed using a microscope in a prepared slide of leaf epidermal cells but not in a prepared slide of human cheek cells?
components 2 and 3 only
components 3 and 4 only
components 1, 2, and 3 only
components 1 and 5 only
B.5.C
From a single fertilized ovum undergoing a series of rapid cell divisions, a human infant develops. The embryonic cells become specialized for a variety of functions. Which of these statements best describes how different cell types develop?
each cell type contains only the active parts of the DNA needed for that cell type
each cell type has only one chromosome containing the DNA needed for that cell type
each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells
each cell has multiple copies of DNA that are affected in different ways by the environment to change the function of the cell at regular intervals
B.5.C
What is the role of mRNA in expressing specialized structures?
making energy available for cellular activities
creating bonds to form biomolecules
producing sugars that assist with replication
providing information to form proteins
