Biology Junction Team - BIOLOGY JUNCTION

Quiz Bacteria

Name:

Bacteria

True/False Indicate whether the sentence or statement is true or false.
	1.	Gram-negative bacteria have a thick layer of peptidoglycan that stains purple.
	2.	Bacteria lack nuclei and therefore also lack genetic material.
	3.	Bacterial cells have membrane-bound organelles and chromosomes.
	4.	Bacterial cells are usually much larger than eukaryotic cells.
	5.	Bacteria are incapable of movement themselves; they can only get to new locations by growing toward them or by forming endospores and being carried in air or water.
	6.	Some bacteria cannot survive in the presence of oxygen.
	7.	When bacteria undergo nonreproductive genetic recombination, their bacterial chromosome is altered.
	8.	Certain antibiotics have become ineffective against certain strains of bacteria. These bacteria have developed a resistance, which may be passed on from one generation of bacteria to the next.
	9.	The photoautotrophic bacteria are the only bacteria that are indirectly beneficial to humans.
Completion Complete each sentence or statement.
	10.	Spiral bacteria are called ____________________.
	11.	Spherical bacteria are called ____________________.
	12.	Rod-shaped bacteria are called ____________________.
	13.	The procedure used to distinguish between two types of bacterial cell wall structures is called ____________________.
	14.	Protective structures that some bacteria may form under harsh conditions are ____________________.
	15.	The cell walls of Gram-negative eubacteria are composed of a combination of polysaccharide and polypeptide called ____________________.
	16.	Bacteria that obtain their energy by removing electrons from inorganic molecules, rather than obtaining energy from the sun, are called ____________________ bacteria.
	17.	In general, organisms that obtain their energy from sunlight are called ____________________.
	18.	Bacteria that are heterotrophic and feed on dead organic matter are called ____________________.
	19.	A(n) ____________________ is a substance that can be obtained from bacteria or fungi and can be used as a drug to fight pathogenic bacteria.
	20.	Many bacteria are ____________________ and play an important role in recycling carbon, nitrogen, and other elements, while other bacteria are ____________________ and assemble organic compounds from carbon dioxide, nitrogen, and other elements.

Photosynthesis

Name:

Photosynthesis

True/False Indicate whether the sentence or statement is true or false.
	1.	All organisms require energy to carry out life processes.
	2.	Animals that live exclusively on a diet of other animals are unable to use carbohydrates to fuel their life processes.
	3.	When light hits a plant, all of the wavelengths are absorbed and used to make sugar.
	4.	A series of linked chemical reactions in which the product of one chemical reaction serves as the reactant in the next reaction is called a biochemical pathway.
	5.	An autotroph is able to make its own organic molecules from inorganic materials and energy.
	6.	The major light-absorbing pigment in plants is chlorophyll.
	7.	Plant cells use light to make ATP and NADPH.
	8.	The “light reactions” of photosynthesis can occur only under light conditions, and the “dark reactions” occur only during the dark hours.
	9.	The final product of photosynthesis is not actually glucose.
	10.	C4 and CAM plants use less water to produce the same amount of carbohydrate as C3 plants.
Completion Complete each sentence or statement.
	11.	Stacks of thylakoids, called ____________________, are found suspended in the stroma of chloroplasts.
	12.	A pigment that absorbs primarily red and blue photons of light for photosynthesis is called ____________________, while pigments that absorb other wavelengths and appear yellow and orange are called ____________________.
	13.	Organisms that harvest energy from either sunlight or chemicals in order to make food molecules are called ____________________.
	14.	The main pigment associated with the two photosystems is ____________________.
	15.	In the electron transport chain of photosynthesis, electrons travel from molecule to molecule as part of a(n) ____________________ atom.
	16.	The abundance of oxygen in Earth’s atmosphere is a result of ____________________.
	17.	Chemiosmosis results in the release of ____________________.
	18.	The third stage of photosynthesis, in which glucose is manufactured, is called the ____________________.
	19.	The scientist who determined the sequence of steps in the light-independent reactions was ____________________.
	20.	The ____________________ plants have an enzyme that is more efficient at fixing CO2 than is the enzyme that accomplishes this in ____________________.

Quiz Viruses

Name:

Viruses

True/False Indicate whether the sentence or statement is true or false.
	1.	Although viruses do not consist of cells, biologists consider them to be living because they are capable of reproduction.
	2.	Wendell Stanley made the important discovery that viruses are not cellular.
	3.	Viruses consist of RNA or DNA surrounded by a coat of protein.
	4.	Prions are the smallest known particles that are able to replicate.
	5.	A virus can only reproduce by controlling a cell.
	6.	People can contract the influenza virus more than once because the virus tends to mutate rapidly, avoiding the actions of the immune system.
	7.	Smallpox is caused by bacteria.
	8.	Chickenpox and shingles are caused by the same virus.
	9.	The viruses that have been linked to human cancers are usually transmitted through the air.
Completion Complete each sentence or statement.
	10.	The protein coat of a virus is called a(n) ____________________.
	11.	Most viruses occur in the shape of a(n) ____________________ or a(n) ____________________.
	12.	A virus that transcribes DNA from an RNA template is called a(n) ____________________.
	13.	An enzyme called ____________________ manufactures DNA that is complementary to a virus’s RNA.
	14.	____________________ are bacterial viruses with a polyhedral head and a helical tail.
	15.	All viruses reproduce by taking over the reproductive machinery of a ____________________.
	16.	Viruses that infect a host cell and have their nucleic acid replicated but do not harm the host cell are in a ____________________ cycle.
	17.	A viral DNA molecule formed from an RNA virus is called a(n) ____________________.
	18.	The virus that causes AIDS is called ____________________.
	19.	Some viruses are thought to induce ____________________, a disease characterized by uncontrolled cell division.
	20.	An example of an emerging virus is the ____________________ virus.

Fish Puzzle

Fish

Fill in the blanks with the correct letters. The words in the list on the right provide a clue to the answer.

1) _erte _ r _ _		small bones making up the backbone
2) _ ran _ _ m		bony protection covering the brain
3) a _ nath _		class containing hagfish & lampreys
4) _ ho_d _ _ ch _ h _ e _		class containing sharks & rays
5) _ ste _ ch _ h _ es		class of bony fish
6) ar _ h _ _		bony supports for the gills
7) l _ _ _ ral		line system that detects vibrations in the water
8) h _ gfi _ _		jawless marine fish that feed on dead fish
9) la _ _ re_		jawless and sometimes parasitic fish
10) ex _ e _ _ a _		fertilization in jawless fish
11) _ _ _ _ ila_e		flexible protein material in the skeleton of sharks
12) p _ a _ oid		toothlike scales on sharks
13) _ _ c _ oral		fins on sharks that appear like wings of an airplane
14) o_f _ _ _ o _ y		responsible for the shark’s acute sense of smell
15) _ a _		flattened bat like fish with a skeleton of cartilage
16) sl _ t _		openings into the gills on cartilagenous fish
17) c _ _ _ _ ers		modified pelvic fins of male sharks used to transfer sperm
18) _ er _ h		example of a ray finned fish
19) o_er _ _ l _ _		bony covering over the gills of bony fish
20) _a _ d _ l		tail fin
21) _iv _ _		organ that secretes bile to digest fats
22) a _ t _ ri _ s		carry blood away from the heart
23) vein _		return blood to the heart
24) _ t_iu _		heart chamber that receives blood bck form the heart
25) _e _ t _ icl _		pumping chamber of the heart
26) co _ _ te _ _ urr _ nt		movement of blod across a fish’s gills for maximum absorption of oxygen
27) b _ oyan _ _		property that the swim bladder gives to a fish
28) _ er _ _ rum		forebrain
29) c _ r _ _ _ llum		hindbrain
30) spa _ _ in _		reproductive behavior where fish build nests and lay their eggs

Solution

Fungi Puzzle

	Fungi
Find each term and then number and define it on the back of this paper.

AMANITA	ANTHERIDIUM	ASCI
ASCOGONIUM	ASCOMYCOTA	ASPERGILLUS
BASIDIA	BASIDIOMYCOTA	BUDDING
CHITIN	COENOCYTIC	CONIDIA
DEUTEROMYCOTA	HYPHAE	LICHENS
MOLD	MUSHROOM	MYCELIUM
MYCOLOGY	MYCORRHIZA	PENICILLIUM
RHIZOIDS	RINGWORM	ROUQUEFORT
SEPTA	SPORANGIUM	SPORES
STOLONS	TOADSTOOL	TRUFFLES
YEAST	ZYGOMYCOTA

Solution