A structure that performs a specialized function within a cell is known as
What is an Organelle
100
Which would be a job that the cell membrane performs?
A. Making sure that ribosomes produce enough proteins.
B. Transporting materials throughout the cell.
C. Preventing toxic substances from entering the cell
D. Issuing instructions for the mitochondria to release
What is preventing toxic substances from entering the cell
100
What is the function of DNA?
a. To store and transmit genetic information
b. To produce ATP
c. To convert carbohydrates into lipids
d. To produce membranes for the cell
What is to store and transmit genetic information (A)
100
The movement of molecules from a low concentration to a high concentration that requires energy from the cell.
What is active transport
100
Mitosis is:
a. fertilization
b. sexual reproduction
c. metastasis
d. asexual reproduction
What is asexual reproduction (D)
200
A tissue is comprised of organs. True or False
What is False
200
The function of which organelle is to use the energy from the sun to make energy-rich food molecules?
What is a chloroplast
200
Which of the following is a function of lipids
a) to store long term energy
b) to store short term energy
c) to store genetic information
d) to make molecules
What is to store long term energy (A)
200
The movement of water from a high concentration to a low concentration that does not require energy.
What is osmosis
200
The majority of the time spent in the cell cycle is spent with the cell carrying out its normal processes. This phase is called:
a. mitosis
b. G1
c. interphase
d. cytokinesis
What is interphase (C)
300
What is a group of organ systems working together to perform a particular task called?
What is an organism
300
Cardiac muscle cells in your heart require a large amount of energy to maintain their activity. Would you expect muscle cells to have a large concentration of:
A. DNA
B. Vacuoles
C. Chloroplasts
D. Mitochondria
What are mitochondria (D)
300
Which is the primary function of carbohydrates?
a) Storage of energy
b) Transmission of genetic material
c) Acceleration of chemical reactions
d) Transport of molecules across membranes
What is the storage of energy (A)
300
How do enzymes speed up reactions?
What is lower activation energy
300
The end product of mitosis is
a. Two completely different cell
b. A large cell and a small cell
c. Two identical sister cells
d. Two parent cells
What is two identical sister cells (C)
400
An organ system is comprised of cells, but not organisms. True or False
What is True
400
Which organelle is correctly paired with its function?
A. Nucleus- provides carbohydrates for fermentation
B. Chloroplast-serves as the site for photosynthesis
C. Cell membrane- protein synthesis
D. Lysosome- packages cellular products
What are chloroplasts? (B)
400
What is a lipid?
What is fat
400
The movement of water into a cell due to higher molecule concentration.
What is hypotonic
400
The region where two sister chromatids are joined is called the:
a. chromosome
b. centromere
c. chromatin
d. cytokinesis
What is centromere (B)
500
List all 6 steps of the biological hierarchy beginning with the most complex unit.
What is organism, organ system, organ, tissue, cell, organelle
500
Certain poisons are toxic to organisms because they interfere with the function of enzymes in mitochondria. This results directly in the inability of the cell to
A.Store information
B.Build proteins
C.Release energy from food
D.Dispose of metabolic waste
What is release energy from food (C)
500
Many aquatic birds secrete waxy organic substances that repel water. The birds use these substances to coat their feathers. An analysis of these substances would reveal that they are composed mostly of…
a. Lipids
b. Proteins
c. Carbohydrates
d. Nucleic acids
What are lipids (A)
500
The movement of water out of a cell due to higher molecule concentration.
What is hypertonic
500
The stage directly following telophase where cytoplasm divides to form two cells is called
a. mitosis
b. metastasis
c. cytokinesis
d. meiosis