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WorksheetsPre-test Bio1 2nd quarter
Total questions: 15
Worksheet time: 23mins
Which of the following statement does not support the function of a chloroplast?
A. Chloroplast is responsible for enabling photosynthesis to occur so that plants can convert sunlight into chemical energy.
B. Chloroplast is an organelle unique to plant cells that contains chlorophyll
C. Chloroplast contains most reactions during photosynthesis
D. Chloroplasts are minor sources of energy for plants
In which structure of the chloroplast does the chlorophyll contained?
A. Thylakoid
B. Stroma
C. Mesophyll
D. Granum
Comparable to mitochondria, which serves as a “powerhouse” of the cell, a chloroplast makes the availability of energy for plants accessible except:
A. It generates large quantities of energy
B. It stores calcium for cell signaling activities
C. It is responsible also for transporting molecules
D. It provides its own food that then gets used to power the organism.
In which two layers of the leaf are most active chloroplasts found?
A. Palisade and spongy mesophyll
B. Epidermis and stomata
C. Xylem and Phloem
D. Roots and Spongy Mesophyll
Chlorophyll, a very important pigment for food production among plants dominates green as its color. What is the reason for this?
A. It absorbs green wavelengths
B. It reflects green wavelengths of light
C. An optical phenomena caused by transmission of light
D. It absorbs blue and yellow wavelengths combined to be green as a result.
What process takes place in the chloroplast turning light energy into food?
A. Photosynthesis
B. Carbon fixation
C. Light Reaction
D. Dark Reaction
Which of the following controls which molecules can enter or leave the
chloroplast?
A. outer membrane
B. inner membrane
C. stroma
D. thylakoids
Which of the following is the collection of sacks containing chlorophyll?
A. stroma
B. thylakoids
C. pigments
D. lumen
Which of the following is the collection of sacks containing chlorophyll?
A. stroma
B. thylakoids
C. pigments
D. lumen
Chlorophyll is necessary for photosynthesis because it
A. traps solar energy
B. combines with oxygen
C. absorbs carbon dioxide
D. reacts with glucose
5. Which of the following DOES NOT summarize the energy changes in
photosynthesis?
A. Sunlight is used to make food
B. Chemical energy is converted into heat energy
C. Solar energy is converted into chemical energy
D. Sunlight is used to build up complex carbon compounds
Pigments have extensive use in cancer research, for identifying tumor cells. When the solution is sprayed as a stream of fine droplets past a laser and computer sensor, a machine can identify whether the cells in the droplets have been identified by the antibodies. Which of the following sentences supports this claim?
A. The light produced by fluorescence may be used as chemical "tags"
B. The light produced by fluorescence may categorize illnesses
C. Pigments are utilized to absorb light energy
D. Pigments are used as antibodies.
Which of the following statements dos NOT describe a carotenoid as a pigment?
A. They are also called accessory pigments.
B. It is water-soluble and must be attached to membranes within the cell.
C. It is composed of two small six-carbon rings connected by a "chain" of carbon atoms.
D. Carotenoids cannot transfer sunlight energy directly to the photosynthetic pathway, but must pass their absorbed energy to chlorophyll.
Electrons that are excited to a higher energy level may be transferred to
an electron acceptor or may return to a ground state. If the latter occurs,
energy will be released in a process known as:
A. fluorescence
B. photoelectron hydrolysis
C. photoelectron degradation
D. photoelectron deconfiguration
Chlorophyll absorbs most light in which colors of the visible range?
A. Blue and red
B. Green and red
C. Violet and red
D. Violet and green
