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Biology 101 > LAB 3 > Flashcards

LAB 3 Flashcards

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1
Q

Photosynthesis

A

mechanism by which organisms use CO2 (carbon dioxide) + H2O (water), in the presence of sunlight to make sugars (C6H12O6 = glucose) + O2 (oxygen gas, released)

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2
Q

Xylem

A

conducting tissue in plants, moves water from roots to leaves

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3
Q

Phloem

A

conducting tissue in plants moves sugars and other nutrients from leaves to other parts of plant

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4
Q

Cephalization

A

a concentration of sensory structures in anterior region of the body

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5
Q

Radial Symmetry

A

A body plan in which identical parts are arranged in a circular fashion around a central axis, sea stars

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6
Q

Bilateral Symmetry

A

a body plan where the organism has mirror-image right and left sides

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7
Q

Are plants multicellular or unicellular organisms ?

A

Multicellular

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8
Q

Are plants autotrophic or heterotrophic organisms?

A

autotrophic

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9
Q

Are plants prokaryotic or eukaryotic organisms?

A

Eukaryotic

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10
Q

What physical characteristics do you observe that lead you to your answers?

A

Green in life

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11
Q

By what process do plants generate their energy?

A

Photosynthesis

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12
Q

What materials are needed by the plants to perform this (reaction) and the end product of this reaction?

A

CO2 + H2O and sunlight

C6H12O6 + O2

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13
Q

What are the leaves function?

A

the main photosynthetic structure

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14
Q

What is the stems function?

A

conduction of material

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15
Q

What are the roots function?

A

absorption and anchorage to soil

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16
Q

What substance is transported by the xylem?

A

water

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17
Q

From where to where is water being transported?

A

from roots to leaves

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18
Q

What substance is transported by the phloem?

A

sugar and other substances

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19
Q

From where to where is sugar and other substances being transported?

A

leaves to other locations

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20
Q

Function of carpel?

A

reproductive structure and contains stigma style and ovary

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21
Q

Function of stamens?

A

release sperm-containing pollen

22
Q

Function of ovary?

A

the part of the pistal that holds the eggs awaiting fertilization and becomes the fruit

23
Q

Why do plants produce flowers?

A

to attract pollinators

24
Q

When you eat a fruit, what part of the plant are you eating?

A

ovary

25
Q

When you eat a vegetable, what part(or parts) of the plant are you eating?

A

leaves, roots, stems, flower

26
Q

What is the function of a fruit(think of what is inside)?

A

attract a consumer to eat fruit, carry seed away

27
Q

Observe the various seeds displayed in the room, what is the purpose of a seed?

A

nourishment of embryonic plant, dispersal to new location, dormancy

28
Q

What is the feeding method of sponges?

A

filter feeder

29
Q

What are commercial uses of the sponges skeleton?

A

applying make up, cleaning, and bathing

30
Q

What type of body symmetry does the jellyfish display?

A

radical symmetry

31
Q

How do jellyfish disable their prey?

A

their sting

32
Q

What is cephalization?

A

a concentration of sensory structures in the anterior end of the body

33
Q

What type of symmetry is displayed by flatworms?

A

bilateral

34
Q

Why do tapeworms not need a digestive system?

A

Live in intestines where food is already digested just need to absorb the nutrient matter across the body surface

35
Q

What are some major illnesses caused by roundworms?

A

trichinella, ascariasis, and enterobiasis

36
Q

Where does Trichinella live?

A

in the muscle

37
Q

How can you avoid infection with parasitic roundworms?

A

by not eating under cooked pork

38
Q

What molluscs are common common food items?

A

clams, mussels, oysters, and scallops

39
Q

Where can molluscs be found?

A

on land, in freshwater, or in the ocean

40
Q

How are earthworms beneficial in the soil?

A

Aerate soil, decompose organic matter and release nutrients plants can use, waste products are a type of fertilizer

41
Q

What are some of the major ecological roles of insects?

A

disease vectors, food source, decomposers, aerate soil, control insect and plant pests

42
Q

What group of aquatic arthropods include many food items?

A

crustaceans

43
Q

What is an exoskeleton?

A

external skeleton

44
Q

Which member of the echinoderms is a prized food item?

A

sea urchin

45
Q

What are four characteristics of the chordates?

A

dorsal notochord, dorsal nerve chord, pharyngeal gill slits, and post-anal tail

46
Q

What special feature of the amphibians allows them to inhabit a terrestrial environment( as opposed to fish which are restricted to an aquatic environment)?

A

their gills

47
Q

What special feature of reptiles allow them to be successful on land?

A

their lungs

48
Q

What special features of reptiles allow them to be successful on land?

A

their hard shelled egg, and water tight skin

49
Q

What special feature of the birds assists them in temperature regulation?

A

homeothermic, feathers for insulation

50
Q

What characteristics of human cause them to be classified as mammals?

A

mammary glands and fur/hair

51
Q

What segmented worm is used in medicine

A

leech

52
Q

How are insects important in food production?

A

can be pollinators, can be pests and destroy crops, certain other insects eat the crop pests thereby helping crops

Biology 101 (1 decks)

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