Quiz Protein Synthesis

%CODE1%

Name: 

Protein Synthesis

 

 

Completion
Complete each sentence or statement.
1.
In eukaryotes, gene expression is related to the coiling and uncoiling of ____________________.

2.
A DNA subunit composed of a phosphate group, a five-carbon sugar, and a nitrogen-containing base is called a(n) ____________________.

3.
The name of the five-carbon sugar that makes up a part of the backbone of molecules of DNA is ____________________.

4.
Knowing the order of the bases in a gene permits scientists to determine the exact order of the amino acids in the expressed ____________________.

5.
Due to the strict pairing of nitrogen base pairs in DNA molecules, the two strands are said to be ____________________ to each other.

6.
According to base-pairing rules, adenine pairs with ____________________ and guanine pairs with ____________________.

7.
The enzyme that is responsible for replicating molecules of DNA by attaching complementary bases in the correct sequence is ____________________.

8.
Enzymes called ____________________ are responsible for unwinding the DNA double helix by breaking the hydrogen bonds that hold the complementary strands together.

9.
The process by which DNA copies itself is called ____________________.

10.
Molecules of ____________________ carry instructions for protein synthesis from the nucleus to the cytoplasm.

11.
The nitrogen-containing base that is found only in RNA is ____________________.

12.
The enzyme responsible for making RNA is called ____________________.

13.
The form of ribonucleic acid that carries genetic information from the DNA to the ribosomes is ____________________.

14.
A ____________________ is a sequence of DNA at the beginning of a gene that signals RNA polymerase to begin transcription.

15.
Messenger RNA is produced during the process of ____________________.

16.
Of the 64 codons of mRNA, 61 code for ____________________, 3 are ____________________ signals, and one is a ____________________ signal.

17.
Nucleotide sequences of tRNA that are complementary to codons on mRNA are called ____________________.

18.
The sequence of three nucleotides that code for specific amino acids or stop signals in the synthesis of protein is called a(n) ____________________.

19.
The information contained in a molecule of messenger RNA is used to make protein during the process of ____________________.

20.
During translation, amino acids are brought to the ribosomes by molecules of ____________________.

 

Check Your Work     Reset

Quiz Cells

%CODE1%

Javascript not enabled

Name: 

Cells

 

 

True/False
Indicate whether the sentence or statement is true or false.
1.
Robert Hooke observed cork cells under a microscope.
2.
Anton van Leeuwenhoek concluded that all plants are composed of cells.
3.
All living things are composed of many cells.
4.
A cell is the smallest unit that can carry on all the processes of life.
5.
Inside smaller cells, materials and information can be transported more quickly.
6.
Membranes are selectively permeable if they allow only certain substances to diffuse across them.
7.
Lysosomes carry on cellular respiration.
8.
Microtubules and microfilaments form the cytoskeleton of cells.
9.
Colonial organisms differ from single-celled organisms in that each cell cannot support its own existence.
 

Completion
Complete each sentence or statement.
10.
The statement that “cells are produced only from existing cells” is part of the ____________________.

11.
The ratio of surface area to volume puts limitations on a cell’s ____________________.

12.
Eukaryotic cells are much larger and have more specialized functions than prokaryotic cells because they contain ____________________ which take up space and carry out specialized activities.

13.
A cell with a well-defined nucleus surrounded by a nuclear membrane is called a(n) ____________________ cell.

14.
A cell membrane is said to be ____________________ permeable because it allows the passage of some solutes and not others.

15.
____________________ molecules have “heads” and “tails” and are found in the cell membrane.

16.
Scientists have discovered that cells contain smaller specialized structures known as ____________________.

17.
The spherical organelles that are the site of protein synthesis in a cell are the ____________________.

18.
The meshlike network of protein fibers that supports the shape of the cell is called the ____________________.

19.
The fluid portion of the cytoplasm is called the ____________________.

20.
Photosynthesis takes place in the ____________________ of plant cells.

 

Check Your Work     Reset

Biomes of the World

%CODE1% Biomes of the World

 

T S O V C D A R P R L V T T S
Q S L U E I E B E G A L U D R
X T E S S M T T I V D E N B T
N A E R U E A O V O I M D H K
Z R U S O W R J I N T O R E R
T M N T H F C O H B R I A R E
S O L S N H N A V C E B C B C
C P E R F K Q I R I T A F I U
N R S A V A N N A N N Y C V D
F E N I R A M F D R I M U O O
G R A S S L A N D Z A V O R R
S U O U D I C E D G N J O E P
O H Z G L J Y X I B Y X F R W
U C T C T N Y A Q B A J S U E
X N B S O O T D E K P T N B X

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

 

ABIOTIC BIOME BIOTIC
CARNIVORE CONSUMER DECIDUOUS
DESERT FRESHWATER GRASSLAND
HERBIVORE INTERTIDAL MARINE
OMNIVORE PRODUCER RAINFOREST
SAVANNA TAIGA TUNDRA

 

 

 


 

 

Seed Plants

%CODE1%

Name: 

Seed Plants

 

 

True/False
Indicate whether the sentence or statement is true or false.
1.
Tracheids and sieve tubes make up a xylem vessel.
2.
The main function of ground tissue is to conduct water and minerals.
3.
Vascular tissue is found within ground tissue, which makes up the outside of the plant.
4.
The outer protective layer of tissue on a vascular plant is known as the meristem.
5.
Monocot stems cannot become large in diameter because they lack lateral meristems.
6.
The loss of water by transpiration at the leaves helps pull water into the plant at the roots.
7.
The blade of a compound leaf is divided into leaflets.
8.
Many gymnosperms, such as pine, spruce, and fir trees, produce their seeds in cones.
9.
The flowers of angiosperms are ornamental and have no reproductive function.
10.
Brightly colored petals, scents, and nectar are all adaptations of flowers that help ensure pollination.
11.
Plants with colorful flowers are pollinated most commonly by wind.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
12.
The conducting cells of phloem are called
a.
tracheids.
c.
sieve plates.
b.
sieve tube members.
d.
vessel elements.
13.
Plants grow in regions of active cell division called
a.
meristems.
c.
phloem.
b.
xylem.
d.
dermal tissue.
14.
The lengthening of plant roots and shoots is called
a.
secondary growth.
c.
primary growth.
b.
germination.
d.
vascular growth.
seed_plants_files/i0170000.jpg
15.
Refer to the illustration above. The structure indicated at “f”
a.
supports the anther.
b.
produces pollen.
c.
has tiny structures that look like leaves.
d.
develops into a fruit.
16.
Refer to the illustration above. The structure labeled “c”
a.
produces pollen.
c.
is sticky to the touch.
b.
contains sperm cells.
d.
contains meristematic tissue.
17.
The process of transferring pollen from a male cone to a female cone in gymnosperms is called
a.
fertilization.
c.
pollination.
b.
seed formation.
d.
asexual reproduction.
18.
If a plant’s flowers are very colorful and produce nectar, the plant is probably pollinated by
a.
water.
c.
insects.
b.
wind.
d.
self-pollination.
19.
Fertilization
a.
involves the union of the egg and sperm.
b.
may not follow pollination at all.
c.
may not occur until weeks or months after pollination has taken place.
d.
All of the above
20.
After an egg has been fertilized, a fruit develops from the
a.
style.
c.
ovule.
b.
ovary.
d.
sepal.

 

Check Your Work     Reset

 

 

Protist Study Guide

%CODE1%

Javascript not enabled

Name: 

Protist Quiz

 

 

Modified True/False
Indicate whether the statement is true or false.  If false, change the identified word or phrase to make the statement true.
 1.
The kingdom Protista contains the eukaryotes that are not plants, animals, or fungi. _________________________


 2.
Sexual reproduction with spores evolved in protists. _________________________


 3.
Tissues, organs, and organ systems evolved in unicellular protists. _________________________


 4.
Sexual reproduction allows Chlamydomonas to delay development of new organisms until environmental conditions are favorable. _________________________


 5.
Amoebas move by means of pseudopodia. _________________________


 6.
Diatoms are the only type of protists with single shells. _________________________


 7.
Paramecium takes in food through its contractile vacuole. _________________________


 8.
Cellular slime molds form a mass of cytoplasm that has many nuclei. _________________________


 9.
Protists have an important effect on humans because they cause disease. _________________________


 10.
Malaria is caused by the protist Plasmodium and is spread by the bite of certain fleas. _________________________


 11.
Carrageenan is a product made by protists that is used to flavor many food products. _________________________


 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 12.
Which of the following is not true about some or all protists?
a.
unicellular and heterotrophic
c.
multicellular and autotrophic
b.
unicellular and autotrophic
d.
multicellular and prokaryotic
 13.
The kingdom Protista does not include
a.
most of the single-celled eukaryotes.
c.
multicellular seaweed.
b.
slime and water molds.
d.
prokaryotes.
 14.
Which of the following characteristics did not evolve in the Kingdom Protista?
a.
unicellularity
c.
membrane-bound organelles
b.
gametes
d.
complex cilia and flagella
 15.
sexual reproduction : diversity ::
a.
flagella : cilia
c.
green algae : flagella
b.
multicellularity : tissues
d.
unicellularity : protists
 16.
Eukaryotes that lack the features of animals, plants, or fungi are classified in the kingdom
a.
Archaebacteria.
c.
Protista.
b.
Plantae.
d.
Animalia.
 17.
You have been given an unknown organism to identify. You find that it is unicellular and has a cell wall. Which of the following must it also have?
a.
chloroplasts
c.
pseudopodia
b.
asexual reproduction
d.
one or more flagella
 18.
When Chlamydomonas reproduces sexually, it divides by mitosis, producing
a.
zygospores.
c.
haploid gametes.
b.
diploid gametes.
d.
zoospores.
 19.
Zoospores are
a.
produced as a result of meiosis.
c.
produced as a result of mitosis.
b.
diploid.
d.
all parasitic.
 20.
The haploid, gamete-producing phase in the life cycle of some multicellular protists is known as the
a.
zygospore generation.
c.
conjugation generation.
b.
gametophyte generation.
d.
sporophyte generation.
 21.
The marine green alga Ulva reproduces sexually by
a.
alternation of generations.
c.
mitosis.
b.
conjugation.
d.
aggregation.
 22.
Pseudopodia are used for
a.
Paramecium conjugation.
c.
Euglena reproduction.
b.
movement by amoebas.
d.
Paramecium mitosis.
 23.
Amoebas capture food by
a.
engulfing it.
c.
trapping it with flagella.
b.
using cilia.
d.
taking it into an oral groove.
 24.
When an individual diatom gets too small because of repeated division, it
a.
grows to full size in its existing shell.
b.
slips out of its shell, grows to full size, and regenerates a new shell.
c.
slips out of its shell, grows to full size, and reinhabits its old shell.
d.
slips out of its shell and lives the rest of its life without a shell.
 25.
Algae are
a.
sometimes heterotrophic.
b.
always microscopic in size.
c.
found in fresh water, salt water, and damp soil.
d.
found only in fresh water.
 26.
Red algae
a.
are multicellular.
c.
have eyespots.
b.
are unicellular.
d.
have double shells.
 27.
Euglenoids are examples of protists that
a.
can be both autotrophic and heterotrophic.
b.
are only parasitic heterotrophs.
c.
are always autotrophic.
d.
swim away from light.
 28.
dinoflagellates : flagella ::
a.
amoebas : pseudopodia
c.
ciliates : pseudopodia
b.
sporozoans : flagella
d.
amoebas : flagella
 29.
The process in which two Paramecia come together to exchange parts of their genetic material is called
a.
mitosis.
c.
pollination.
b.
replication.
d.
conjugation.
nar001-1.jpg
 30.
Refer to the illustration above. Excess water in the body of the Paramecium is forced back out by the structure labeled
a.
A
c.
D
b.
C
d.
E
 31.
Refer to the illustration above. The structure that contains the cell’s chromosomes is labeled
a.
A
c.
C
b.
B
d.
E
 32.
Refer to the illustration above. Structure C is the
a.
macronucleus.
c.
oral groove.
b.
contractile vacuole.
d.
micronucleus.
 33.
Refer to the illustration above. The structure that controls routine cellular functions is labeled
a.
A
c.
C
b.
B
d.
D
 34.
Funguslike protists reproduce by releasing
a.
gametes.
c.
zoospores.
b.
spores.
d.
plasmodia.
 35.
Giardiasis is a disease that is spread
a.
by direct person-to-person contact.
c.
through contaminated water.
b.
through the air.
d.
by the Anopheles mosquito.
 36.
Chagas disease is spread by
a.
kissing bugs.
c.
contaminated food.
b.
mosquitoes.
d.
contaminated water.
 37.
Which of the following is not a human disease caused by a protist?
a.
amebic dysentery
c.
malaria
b.
toxoplasmosis
d.
tuberculosis.
 38.
giardiasis : contaminated water ::
a.
amebic dysentery : mosquito
c.
malaria : mosquito
b.
amebic dysentery : giardiasis
d.
malaria : food contamination
 39.
The protist that causes malaria reproduces in the
a.
intestine of a human.
c.
red blood cells of a human.
b.
red blood cells of a mosquito.
d.
stinger of a mosquito.
 40.
Malaria is caused by several species of
a.
Toxoplasma.
c.
Giardia.
b.
Phytophthora.
d.
Plasmodium.
 41.
The stage in the life cycle of Plasmodium in which it lives in mosquitoes and is injected into humans is called the
a.
gametophyte.
c.
sporophyte.
b.
sporozoite.
d.
zoospore.
 42.
Symbiotic protists live in all of the following organisms except
a.
termites.
c.
cattle.
b.
corals.
d.
bacteria.
 43.
Protists that play an important role in aquatic food webs are called
a.
plankton.
c.
anchovies.
b.
lichens.
d.
cyanobacteria.
 44.
The evolution of the plant kingdom can be inferred by studying
a.
green algae.
c.
red algae.
b.
brown algae.
d.
dinoflagellates.
 45.
A mass of cytoplasm that has many nuclei is a(n)
a.
spore.
c.
colony.
b.
plasmodium.
d.
amoeba.
 46.
A protist that almost destroyed the entire potato crop in Ireland in 1846 is a
a.
plasmodial slime mold.
c.
dinoflagellate.
b.
cellular slime mold.
d.
water mold.
 47.
A downy mildew gets nutrients by
a.
photosynthesis.
b.
absorbing them from the environment.
c.
making them from inorganic chemicals.
d.
making them from organic building blocks.
 48.
When an algal bloom dies, the bacteria that decompose the algae
a.
deplete carbon dioxide levels in the water.
b.
kill the plankton population.
c.
deplete oxygen levels in the water.
d.
kill fish.
 49.
A protist used by scientists to study cell movement and cell signaling is a
a.
dinoflagellate.
c.
paramecium.
b.
diatom.
d.
slime mold.
 50.
Agar is a product used to grow bacteria. Agar comes from
a.
bacteria.
c.
diatoms.
b.
algae.
d.
amoebas.
 

Completion
Complete each statement.
 51.
Two important features that evolved in the protists were multicellularity and sexual reproduction with the production of ____________________.

 52.
The evolution of ____________________ allowed single-celled organisms to perform many functions at the same time.

 53.
When ______________________________ evolved, protists could become genetically diverse.

 54.
Although protists are diverse, they are all ____________________.

Life Cycle of Chlamydomonas
nar002-1.jpg
 55.
Refer to the illustration above. Arrow B is pointing to a ____________________ in the life cycle.

 56.
Refer to the illustration above. Arrow A is pointing to ____________________ in the life cycle.

 57.
According to the illustration above, Chlamydomonas reproduces both sexually and ____________________.

 58.
Some protists undergo sexual reproduction only at times of environmental ____________________.

 59.
Ulva is characterized by two distinct multicellular phases: a diploid, spore producing phase called the ____________________ generation and a haploid, gamete-producing phase called the ____________________ generation.

nar003-1.jpg
 60.
Refer to the illustration above. The organism shown in A moves and obtains food by means of ____________________.

 61.
Refer to the illustration above. The organism shown in C moves by means of ____________________.

 62.
Refer to the illustration above. The organism shown in B moves by means of ____________________.

 63.
Some amoeboid protists have porous shells called ____________________.

 64.
____________________ have double shells that resemble small boxes with lids.

 65.
The large brown algae that grow along coasts are called ____________________.

 66.
Protists that are strict photoautotrophs are called ____________________.

 67.
Poisonous “red tides” are caused by population explosions of ____________________.

 68.
Brown algae are the only algae that form more than one kind of ____________________.

 69.
Some protists have ____________________ that contain light-sensitive pigments.

 70.
____________________ disease is a protist-caused disease that is transmitted by kissing bugs.

 71.
Disease-causing protists are transmitted mainly by insects or by contaminated ____________________ and ____________________.

 72.
The stage of Plasmodium that infects the liver is called the ____________________; the second stage of the Plasmodium life cycle, which infects red blood cells, is called the ____________________.

 73.
Plantlike protists produce ____________________, which allows most forms of life to live on Earth.

 74.
____________________ are related to green algae and are thought to have evolved from them.

 75.
Funguslike protists resemble fungi in that they reproduce with ____________________ and they ____________________ nutrients from their environment.

 76.
Cellular slime molds usually exist as single-celled amoebas, but they form ____________________ and release ____________________ when food or water is scarce.

 77.
A water mold caused the great potato famine in ____________________ in 1846.

 78.
The empty shells of diatoms are used as ____________________ in cleaning agents.

 79.
Red algae produce carrageenan, which is used in the food industry to ____________________ foods such as ice cream and salad dressings.

 

Check Your Work     Start Over