plasma membrane, cytoplasm, nucleus - CORRECT ANSWER What are the cells that are listed
as the body's 3 main parts?
organelles - CORRECT ANSWER
... [Show More] additional cell structures that carry out metabolic life
functions (cellular functions) necessary to maintain the cell
plasma membrane - CORRECT ANSWER made up of a phospholipid bilayer embedded with
proteins that act as channels that are specific for individual molecules and act as gatekeepers that
allow only certain molecules in and out
cytoplasm - CORRECT ANSWER semifluid substance that is present inside the plasma
membrane; contains the organelles
nucleus - CORRECT ANSWER most prominent organelle in the cell; spherical in appearance
and protected by a double membrane
nucleus responsibility - CORRECT ANSWER control center of the cell; DNA encodes for all the
proteins necessary for the cell and allows the organism to carry out its life functions
DNA is replicated and the cell enters into the process of mitosis - CORRECT ANSWER When
new cells are needed for growth or repair of tissues, what happens?
mitosis - CORRECT ANSWER cell division and duplication for tissue growth and repair; results
in two identical daughter cells
rough endoplasmic reticulum - CORRECT ANSWER used for lipid transport and storage;
continuous with the outer membrane of the nucleus
ribosomes - CORRECT ANSWER site of protein synthesis that is encoded by the DNA in the
nucleus
they are packaged in parts of the membrane into vesicles and transported to the Golgi complex -
CORRECT ANSWER What happens when proteins are made on the ribosomes of the rough
endoplasmic reticulum?
Golgi apparatus - CORRECT ANSWER A system of membranes that modifies and packages
proteins for export by the cell
usable cellular energy from the energy stored n the chemical bonds of the foods we eat -
CORRECT ANSWER For a cell to complete cellular processes, what must it create?
mitochondria - CORRECT ANSWER changes food energy into usable cellular energy called
ATP through cellular respiration; "powerhouse of the cell"
events of mitosis - CORRECT ANSWER interphase (1), prophase (2), metaphase (3), anaphase
(4), telophase (5)
interphase - CORRECT ANSWER DNA replicated
prophase - CORRECT ANSWER chromosomes condense and visible chromosomes appear
metaphase - CORRECT ANSWER chromosomes align
anaphase - CORRECT ANSWER chromosomes are pulled apart and cell division begins
telophase - CORRECT ANSWER two nuclei form, daughter cells separate
meiosis - CORRECT ANSWER special type of cell division that results in cells with half the
normal number of chromosomes; produces sex cells
events of meiosis - CORRECT ANSWER 1 ) same as mitosis but I , metaphase II, anaphase II,
telophase II
epithelial tissue, connective tissue, muscle tissue, nervous tissue - CORRECT ANSWER what
are the four types of muscle tissue?
epithelial tissue - CORRECT ANSWER covers body surfaces, lines body cavities, and serves as
a protective barrier
connective tissue - CORRECT ANSWER connects other tissues to each other and binds and
supports body parts
muscle tissue - CORRECT ANSWER moves the body and its contents by contraction
nervous tissue - CORRECT ANSWER receives stimuli and communicates through electrical
impulses with the rest of the body
organs - CORRECT ANSWER what are tissues organized into?
skin - CORRECT ANSWER organ on the outside of the body that is made up of all four tissue
types and acts as a protective barrier?
body structure from simple to most complex - CORRECT ANSWER 1) mitochondria
2) muscle cell
3) connective tissue
4) heart
Mitochondria - CORRECT ANSWER muscle cells contain many __ because of their high
metabolism of ATP
lung organ - CORRECT ANSWER failure of __ could interfere with gas exchange in the body
which of the following cell structures contain cristae?
-DNA
-smooth endoplasmic reticulum
-mitocondria
-peroxisomes - CORRECT ANSWER mitocondria
which of the following terms is used to describe the amount of air in a normal inhalation of
exhalation?
-perfusion
-tidal volume
-ventilation
-residual volume - CORRECT ANSWER tidal volume
which of the following blood vessels carries deoxygenated blood from the heart to the lungs?
-pulmonary vein
-pulmonary artery
-aorta
-vena cava - CORRECT ANSWER pulmonary artery
which of the following terms refers to the partially digested food leaving the stomach?
-chyme
-pepsin
-bolus
-lactase - CORRECT ANSWER chyme
in which of the following actions is the autonomic nervous system engaged?
-lifting weights
-holding your breath
-walking
-digestion - CORRECT ANSWER digestion
which of the following is classified as a carbohydrate?
-DNA
-endorphin
-glycogen
-amylase - CORRECT ANSWER glycogen
which of the following best describes the relationship between a chromosome and a gene?
-each gene forms its own chromosome
-each chromosome contains a single gene
-each gene contains a specific number of chromosomes
-each chromosome contains a specific number of genes - CORRECT ANSWER each
chromosome contains a specific number of genes
a purple-flowered pea plant and a white flowered pea plant were crossed. the allele for purple
flowers is dominant, and the allele fro white flowers is recessive. of 1,000 offspring, were whiteflowered peas plants.
based on these results, which of the following can be concluded about the parent plants?
-the white-flowered pea plant is homozygous dominant
-the white-flowered pea plant is heterozygous
-the purple-flowered pea plant is heterozygous
-the purple-flowered pea plant is homozygous dominant - CORRECT ANSWER the purpleflowered pea plant is heterozygous
which of the following instruments would most accurately measure 0.1 mL of a liquid?
-a 50-mL beaker
-a micropipette
-a graduated cylinder
-an erlenmeyer flask - CORRECT ANSWER a micropipette
joseph and demarius conducted an experiment on the activity of an enzyme. they tested whether
the enzyme activity changed at different temperatures from 10 degree celsius to 60 degree
celsius.
based on the graph, which of the following bet describes the relationship between enzyme
activity and temperature?
-enzyme activity is greatest at temperatures below 30 degree celsius
-enzyme activity decreases between 20 degree and 30 degree celsius
-enzyme activity is unaffected by temperature changes
-enzyme activity is greatest at 40 degree celsius - CORRECT ANSWER enzyme activity is
greatest at 40 degree celsius
which of the following describes the function of the plasma membrane?
-it provides energy to the cell
-it helps to builds proteins
-it maintains the cell's internal environment
-it produces adenosine triphosphate (ATP) for cells - CORRECT ANSWER it maintains the
cell's internal environment
which of the following structures is medial to the large intestine?
-stomach
-pancreas
-liver
-small intestine - CORRECT ANSWER small intestine
during inhalation, where would you expect to find a higher concentration of oxygen?
-in the capillaries
-in the alveolar air space
-in the pulmonary artery
-in the heart - CORRECT ANSWER in the alveolar air space
which structure connects the throat to the lungs?
-alveoli
-trachea
-bronchi
-surfactant - CORRECT ANSWER trachea [Show Less]