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Worksheets

UIL Science

Total questions: 54

Worksheet time: 59mins

Name
Class
Date
1.

Which of the following does NOT possess large amounts of yolk?

a)

Bird egg

b)

Snake egg

c)

Mammalian egg

d)

Turtle egg

e)

Fish egg

2.

All of the following are functions of the endoskeleton EXCEPT ___.

a)

protection

b)

locomotion

c)

storage of calcium and phosphorus

d)

temperature regulation

e)

production of blood cells

3.

The brain center of consciousness and intelligence is the ____.

a)

cerebrum

b)

cerebellum

c)

medulla

d)

pons

e)

thalamus

4.

If a plasma membrane were compared to a sandwich, the __ would be considered the filling.

a)

cholesterol

b)

protein

c)

hydrophilic heads

d)

hydrophobic tails

e)

carbohydrates

5.

Chlorophyll reflects (does not absorb) which color of light?

a)

red

b)

green

c)

yellow

d)

orange

e)

blue

6.

Fruit is produced from the development of the ___.

a)

zygote

b)

ovule

c)

flowers

d)

cotyledon

e)

ovary

7.

The maximum power of magnification of a light microscope is __.

a)

500

b)

1000

c)

2000

d)

4000

e)

10000

8.

In comparing mitosis and meiosis, which of the following statements is true?

a)

Meiosis I is more like mitosis that is Meiosis II.

b)

Both processes result in four cells.

c)

Synapsis occurs in both.

d)

Chromatids are present only in mitosis.

e)

Meiosis II resembles mitosis.

9.

Which of the following have an incomplete digestive system?

a)

annelids

b)

planaria

c)

mollusks

d)

arthropods

e)

echinoderms

10.

An organism's biological fitness refers to is __.

a)

physical conditioning

b)

size in relation to other members of the population

c)

reproductive success

d)

competitive ability

e)

degree of heterozygosity

11.

Which of the following are the primary cellular assembly sites for proteins?

a)

Golgi bodies

b)

ribosomes

c)

mitochondria

d)

lysosomes

e)

smooth endoplasmic reticula

12.

Under anaerobic conditions, muscle cells produce __.

a)

ethyl alcohol

b)

acetaldehyde

c)

pyruvate

d)

lactate

e)

citrate

13.

A strand of DNA has a backbone made up of alternating ___.

a)

purines and pyrimdines

b)

nitrogen-containing bases

c)

hydrogen bonds

d)

sugar and phosphate groups

e)

amines and purines

14.

Bilateral symmetry is characteristic of which of the following types of invertebrates?

a)

cnidarians

b)

sponges

c)

jellyfish

d)

flatworms

e)

starfish

15.

A virus is composed of a ___.

a)

nucleic acid core enclosed in a lipid bilayer

b)

nucleic acid core surrounded by a protein/lipid membrane

c)

nucleic acid encased in a protein capsid

d)

protein core enclosed in a lipid bilayer

e)

protein core encased in a protein capsid

16.

Gametophytes are ___.

a)

haploid plants that produce spores

b)

diploid plants that produce spores

c)

haploid plants that produce gametes

d)

diploid plants that produce gametes

e)

diploid or haploid plants that produce gametes

17.

Nucleoli are present during which phase of the cell cycle?

a)

anaphase

b)

telophase

c)

prophase

d)

interphase

e)

pro metaphase

18.

Lampropeltis alterna is the scientific name of the Gray-banded Kingsnake which indicates.

a)

kingdom & phylum

b)

phylum & genus

c)

kingdom & species

d)

genus & species

e)

class & order

19.

Which structure in a paramecium acts as a defensive organelle against predators?

a)

pellicle

b)

oral groove

c)

contractile vacuole

d)

trichocyst

e)

cilia

20.

Which of these plant features are a characteristic of dicots?

1)parallel leaf veins

2)vascular bundles scattered throughout the stem

3)floral parts in multiples of 4 or 5

4)roots include a taproot

a)

1,3

b)

3,4

c)

4

d)

1,2,3,4

e)

1,4

21.

Jonathan is studying the growth of plants. Which of the steps below did Jonathan do FIRST?

a)

Record growth and number of leaves on each plant.

b)

Put 3 plants in three planters that are exactly the same.

c)

Water each plant the same amount every day.

d)

Write his conclusion for this investigation

22.

Which of the statements is a hypothesis that could be tested in a classroom science experiment?

a)

A person who is shivering should put on a hat

b)

A ball will roll faster down a ramp that is steeper than another ramp

c)

A toy spring is made of many thin loops of plastic

d)

A small rock is yellow-brown with a rough surface.

23.
Carnivores that eat herbivores are considered:
a)
primary consumers
b)
secondary consumers
c)
tertiary consumers
d)
secondary producers 
24.
The process that converts sunlight energy into organic material occurs within the ____ of some eukaryotic cells.
a)
chloroplasts
b)
mitochondria
c)
peroxisomes
d)
plasma membranes
25.
A recessive gene located on the X chromosome is lethal.  What percentage of any surviving offspring will be a carrier for the gene in the following genetic cross?
XAXa x XAY
a)
75%
b)
66.6%
c)
33.3%
d)
25%
26.
All of the following are forms of asexual reproduction except:
a)
budding
b)
mitosis
c)
parthenogenesis
d)
conjugation
27.
____ light has the highest energy per photon.
a)
Infrared
b)
Red
c)
Ultraviolet
d)
Green
28.
Which of the following represents an early stage in primary succession?
a)
Pine tree
b)
Moss and lichens on bare rock
c)
Weedy annual plants in an open field
d)
wildflowers
29.
Which one of the following pairs of elements would be expected to form the most ionic compound?
a)
hydrogen, carbon
b)
rubidium, chlorine
c)
arsenic bromine
d)
sulfur, fluorine
30.
The minimum level of organization required for a division of labor is the _ level.
a)
cellular
b)
organ
c)
tissue
d)
organ system
31.
The number of valence electrons in the lowest valence state of one tin atom is ___.
a)
14
b)
8
c)
2
d)
4
32.
If R is dominant to r, the offspring of the cross of RR with rr will ____.
a)
be homozygous
b)
display the same phenotype as the RR parent
c)
have the same genotype as the RR parent
d)
have the same genotype as the rr parent
33.
Plant stamens contain ___.
a)
petals
b)
sepals
c)
anthers
d)
stigmas
34.

An organism that inherits two of the same alleles for

a single trait is

a)

homozygous.

b)

haploid.

c)

heterozygous.

d)

hemizygous.

e)

polyploid.

35.

Replicate the following DNA template strand: 3’-CAGGTTCAAG-5’

a)

5’-CAGGTTCAAG-3’

b)

5’-GUCCAAGUUC-3’

c)

3’-GTCCAAGTTC-5’

d)

5’-CAGGUUCAAG-3’

e)

5’-GTCCAAGTTC-3’

36.

All of the following cell division processes generate

haploid cells in humans, except

a)

mitosis.

b)

meiosis.

c)

oogenesis.

d)

gametogenesis.

37.

Which of these statements describes the process of

translation?

a)

The flow of genetic information from DNA to

RNA.

b)

The copying of DNA to transmit the genetic

information to daughter cells during cell

division.

c)

The generation of an amino acid sequence from

a specific order of codons on messenger RNA.

d)

The expression of a gene on DNA into tRNA or

rRNA.

e)

Vertical gene transfer during mitosis.

38.

A Mendelian dihybrid cross in which both parents

are heterozygous for both traits would yield a

phenotypic ratio of_________________ .

a)

1:2:1

b)

3:1

c)

1:1

d)

9:3:3:1

e)

none of the above

39.

Inserting or deleting a base from a DNA coding

region would result in which type of mutation?

a)

nonsense

b)

missense

c)

frameshift

d)

silent

e)

substitution

40.

All of the following answer choices are examples of

symbiosis. Which is the best example of

mutualism?

a)

Nitrogen-fixing bacteria residing within root

nodules of leguminous plants.

b)

A domesticated dog having fleas.

c)

Tapeworms inside a mammal’s intestines,

consuming nutrients and leading to malnutrition

and weight loss.

d)

Fungi growing on the side of a dead tree by

secreting enzymes and absorbing the digested

products.

e)

A viral infection in a human cell.

41.

What is the correct volume reading for the liquid in

this burette?

a)

20.84 mL

b)

20.96 mL

c)

20.90 mL

d)

21.05 mL

e)

21.16 mL

42.

Calculate the molar mass of Ba(OH)2.

a)

154.33 g/mol

b)

170.33 g/mol

c)

171.34 g/mol

d)

155.34 g/mol

43.

How many atoms are in one mole of C6H14? 1 mole of molecules = 6.02 x 1023 molecules Hint: note that this question is asking for number of atoms.

a)

6.022 × 1023

b)

1.204 × 1024

c)

6.022 × 1024

d)

1.204 × 1025

e)

6.022 × 1025

44.

A piece of silvery metal measuring 2.0 cm × 2.0 cm

× 5.0 cm has a mass of 178.60 g. Which of these

metals is it most likely to be?

a)

Aluminum

b)

Iron

c)

Cobalt

d)

Nickel

e)

Copper

45.

In a phospholipid, the fatty acid tails are________________ and

the “head,” which is made of phosphate and choline,

is ____________________________ .

a)

hydrophobic; hydrophobic

b)

hydrophobic; hydrophilic

c)

hydrophilic; hydrophilic

d)

hydrophilic; hydrophobic

46.

Which tissue is excitable, conductive, and under

voluntary control?

a)

skin

b)

skeletal muscle

c)

autonomic neurons

d)

nervous tissue

e)

cardiac muscle

47.

Anything associated with a microbial pathogen that

enhances its disease-causing ability is called a/an

a)

antigen.

b)

antibody.

c)

etiologic agent.

d)

virulence factor.

e)

growth factor.

48.

The esophagus is a muscular tube that belongs to

which body organ system?

a)

lymphatic

b)

digestive

c)

nervous

d)

respiratory

e)

endocrine

49.

How many atoms are in one mole of C6H14?

a)

6.022 × 1023

b)

1.204 × 1024

c)

6.022 × 1024

d)

1.204 × 1025

e)

6.022 × 1025

50.

What is the molar mass of gaseous dinitrogen

tetroxide?

a)

30.01 g/mol

b)

44.02 g/mol

c)

46.01 g/mol

d)

88.04 g/mol

e)

92.02 g/mol

51.

What is the sum of the coefficients when this

chemical equation is balanced?

Fe + H2SO4 → Fe2(SO4)3 + H2

a)

12

b)

9

c)

8

d)

7

e)

4

52.

What is the mass percent iron in Fe2O3?

a)

30.06%

b)

34.97%

c)

55.85%

d)

69.94%

e)

111.70%

53.

How do the intermolecular forces in solid wax

compare to the intermolecular forces in molten

wax?

a)

Solid wax has hydrogen bonding but molten

wax only has dipole-dipole forces.

b)

Solid wax has hydrogen bonding but molten

wax only has dispersion forces.

c)

Solid wax has dipole-dipole attractions, but

molten wax only has dispersion forces.

d)

Solid wax has dispersion forces and molten wax

has no intermolecular forces.

e)

The intermolecular forces in solid wax and in

molten wax are the same.

54.

What is the name of the compound Cu2O?

a)

copper oxide

b)

copper(I) oxide

c)

copper(II) oxide

d)

cupric oxide

e)

dicopper monoxide

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