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Biology 1st Semester
Test Description: Review of material from first semester.
Instructions: Answer all questions to get your test result.
1) What are the two different types of cells?
A
The golgi body and Mitochondria
B
(related to organisms with cells that have nuclei within membranes) and Center (of a cell or atom)
C
(related to single-celled organisms with no clear nuclei) and (related to organisms with cells that have nuclei within membra
D
(related to single-celled organisms with no clear nuclei)and Bacteria
2) What is the function of the vacuole in a cell?
A
To break down sugar into ATP
B
Support and Protection
C
Stores food, water, minerals, and waste materials
D
To transport proteins
3) Which cellular edge/border is a lipid bi-layer?
A
Cell Wall
B
Mitochondria
C
Cell Membrane
D
Chloroplast
4) What two parts make up the lipid bi-layer of the cell membrane?
A
Candy and Gummy bears
B
Protein channels and cytoplasm
C
Water-loving head and protein
D
Water-loving head and Hydrophobic tail
5) 15. Which event will have the biggest impact on the stability of the pond community?
A
The water is cold.
B
A severe drought that reduces the pond’s water supply by one half.
C
The hatching of a clutch of frog eggs in the pond.
D
A storm that damages the trees surrounding the pond.
6) A student sets up a compost bin outdoors. Inside the bin bacteria convert the student’s vegetable and paper scraps into rich fertilizer. Which of the following best describes the role that these bacteria play in natural habitats?
A
The bacteria help balance the numbers of producers and consumers.
B
bacteria has been making people sick.
C
The bacteria turn solar energy into sugars.
D
The bacteria help keep nutrients cycling through the ecosystem.
7) Which two body systems would help a rabbit outrun a pursuing coyote?
A
The digestive system increases the rate of digestion, and the excretory system ceases to provide tissues with more nutrien
B
The respiratory system increases the breathing rate, and the circulatory system increases blood pressure to provide tissue
C
The skeletal system releases additional calcium, and the circulatory system retains more sodium in the blood to provide mu
D
Digestive system helps the rabbit outrun the coyote.
8) As ecosystems move through the stages of succession, the populations of organisms in them change. Which of the following describes the stage of succession likely to have the most species diversity?
A
A field that is regularly mowed
B
A temperate forest that has never been cleared by logging
C
A newly formed volcanic island
D
An agricultural field that has not been plowed for one year
9) Which of the following statements regarding the nitrogen cycle is correct?
A
Nitrogen is never a component of organic molecules.
B
Decomposers provide protein to the atmosphere.
C
Nitrogen-fixing bacteria in the soil convert atmospheric nitrogen into a usable form for other organisms.
D
Ammonia and carbohydrates are formed from nitrogen during lightning storms.
10) A biological supply company is advertising the synthesis of a new compound. Scientists note that when the compound is added to a particular chemical reaction, the reaction rate increases dramatically. The compound is likely a--
A
Nucleic Acid
B
Carbohydrates
C
Lipids
D
Protein
11) Enzyme function is often compared to a lock and key. The model helps explain the importance of which property of an enzyme?
A
the speed at which an enzyme catalyzes reactions
B
the specificity of the enzyme
C
the uses of enzymes outside or organisms
D
the size of the enzyme
12) Which group of organelles is directly responsible for the production of new molecules within a cell?
A
The nucleolus, vacuoles, and ribosomes
B
Ribosomes, the endoplasmic reticulum, and Golgi apparatuses
C
Golgi apparatuses, lysosomes, and the plasma membrane
D
The endoplasmic reticulum, plastids, and vacuoles
13) Which cellular process takes place in the ribosomes that are bound to the endoplasmic reticulum?
A
The replication of nucleic acids
B
The breakdown of waste material
C
The conversion of radiant energy to glucose
D
The synthesis of new proteins
14) When there is a lower concentration of water outside of a plant cell rather than inside a plant cell, what will happen?
A
the plant will grow toward the sun
B
the cells of the plant will lose water and wilt
C
the cells of the plant will gain water and become rigid
D
the plant will increase its rate of photosynthesis
*select an answer for all questions
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