Question 1

The ____ form of Plasmodium is transferred to  humans through the bite of an infected mosquito.

Accepted Answer

A) merozoite 
B) gametocyte 
C) cyst 
D) sporozoite 
E) spore 
A) merozoite 
B) gametocyte 
C) cyst 
D) sporozoite 
E) spore D

Question 2

Viral infections in plants often occur by the action of _____.

Accepted Answer

A) reverse transcriptase 
B) disease vectors 
C) bacteriophages 
D) viral reassortment 
E) host cell DNA mutations 
A) reverse transcriptase 
B) disease vectors 
C) bacteriophages 
D) viral reassortment 
E) host cell DNA mutations B

Question 3

Two researchers suggested in the 1960s that ____ may have been the first informational molecule.

Accepted Answer

A) DNA 
B) a protein 
C) RNA 
D) ozone 
E) an amino acid 
A) DNA 
B) a protein 
C) RNA 
D) ozone 
E) an amino acid C

Question 4

Scientists hypothesize that ____ served as a primitive template for forming polymer chains from organic subunits,such as amino acids.

Accepted Answer

A) meteorites that landed in the oceans 
B) clay particles in tidal flats 
C) sulfur that precipitated out of hydrothermal vents 
D) rusty rocks 
E) magma spewed from early volcanic activity 
A) meteorites that landed in the oceans 
B) clay particles in tidal flats 
C) sulfur that precipitated out of hydrothermal vents 
D) rusty rocks 
E) magma spewed from early volcanic activity

Question 5

Match the following terms with the description to which they best correspond.
-thrives in high salt conditions

Accepted Answer

A) protist 
B) prokaryote 
C) photoautotroph 
D) Pathogen 
E) protocell
F)halophile
G)strain 
A) protist 
B) prokaryote 
C) photoautotroph 
D) Pathogen 
E) protocell
F)halophile
G)strain

Question 6

Dinoflagellates typically have ____; some photosynthetic species live inside coral cells,which they supply with _____.

Accepted Answer

A) multiple pili; shelter 
B) hundreds of cilia; essential nutrients 
C) no flagella; minerals 
D) one flagella; essential sugars 
E) two flagella; essential sugars 
A) multiple pili; shelter 
B) hundreds of cilia; essential nutrients 
C) no flagella; minerals 
D) one flagella; essential sugars 
E) two flagella; essential sugars

Question 7

It is thought that viruses may have originated from cells because ____.

Accepted Answer

A) of their small size 
B) they are pathogens 
C) they can only replicate within a host cell 
D) they do not have organelles 
E) of their genetic material 
A) of their small size 
B) they are pathogens 
C) they can only replicate within a host cell 
D) they do not have organelles 
E) of their genetic material

Question 8

Match the prokaryote with the correct description.
-These can live in water of very high salt concentration.

Accepted Answer

A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) bacteria 
E) methanogens 
A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) bacteria 
E) methanogens

Question 9

Label the figure below showing three mechanisms of gene exchange in prokaryotic cells.  
-transformation

Accepted Answer

A) A 
B) B 
C) C 
A) A 
B) B 
C) C

Question 10

Both mitochondria and chloroplasts are thought to have evolved by the process of ____.

Accepted Answer

A) endosymbiosis 
B) viral reassortment 
C) transformation 
D) decomposition 
E) nitrogen fixation 
A) endosymbiosis 
B) viral reassortment 
C) transformation 
D) decomposition 
E) nitrogen fixation

Question 11

Label the figure below showing a generalized prokaryotic cell.  
-cell wall

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 12

____ may have been the ancestors of cellular life.

Accepted Answer

A) Circular RNA 
B) Prokaryotic cells 
C) Pseudocells 
D) Lipid globules 
E) Protocells 
A) Circular RNA 
B) Prokaryotic cells 
C) Pseudocells 
D) Lipid globules 
E) Protocells

Question 13

Match the following bacterial diseases with the proper description.
-childhood respiratory disease

Accepted Answer

A) whooping cough 
B) strep throat 
C) cholera 
D) gonorrhea 
A) whooping cough 
B) strep throat 
C) cholera 
D) gonorrhea

Question 14

Bacteria can exchange genes with other bacteria by a method called ____.

Accepted Answer

A) binary fission 
B) transduction 
C) conjugation 
D) translation 
E) transformation 
A) binary fission 
B) transduction 
C) conjugation 
D) translation 
E) transformation

Question 15

Match the following terms with the description  to which they best correspond.
-multicellular protist able to live in deep ocean water

Accepted Answer

A) amoebas 
B) apicomplexan 
C) dinoflagellates 
D) green algae 
E) red algae
F)foraminifera 
A) amoebas 
B) apicomplexan 
C) dinoflagellates 
D) green algae 
E) red algae
F)foraminifera

Question 16

The fusion of gametes of malaria-causing Plasmodium takes place ____.

Accepted Answer

A) in the gut of a female mosquito 
B) in the liver 
C) in the mosquito salivary glands 
D) inside white blood cells 
E) inside red blood cells 
A) in the gut of a female mosquito 
B) in the liver 
C) in the mosquito salivary glands 
D) inside white blood cells 
E) inside red blood cells

Question 17

Match the following terms with the description  to which they best correspond.
-cause of algal blooms

Accepted Answer

A) amoebas 
B) apicomplexan 
C) dinoflagellates 
D) green algae 
E) red algae
F)foraminifera 
A) amoebas 
B) apicomplexan 
C) dinoflagellates 
D) green algae 
E) red algae
F)foraminifera

Question 18

Algins,thickening compounds used in the food industry,are obtained from ____.

Accepted Answer

A) foraminiferans 
B) brown algae 
C) dinoflagellates 
D) red algae 
E) green algae 
A) foraminiferans 
B) brown algae 
C) dinoflagellates 
D) red algae 
E) green algae

Question 19

Match the following bacterial diseases with the proper description.
-sore throat,can damage heart

Accepted Answer

A) whooping cough 
B) strep throat 
C) cholera 
D) gonorrhea 
A) whooping cough 
B) strep throat 
C) cholera 
D) gonorrhea

Question 20

In panel "A",what is being injected into the host cell?

Accepted Answer

A) enzymes 
B) the viral protein coat 
C) nucleic acids 
D) ribosomes 
E) the viral envelope 
A) enzymes 
B) the viral protein coat 
C) nucleic acids 
D) ribosomes 
E) the viral envelope

The ____ form of Plasmodium is transferred to humans through the bite of an infected mosquito.

Viral infections in plants often occur by the action of _____.

Two researchers suggested in the 1960s that ____ may have been the first informational molecule.

Scientists hypothesize that ____ served as a primitive template for forming polymer chains from organic subunits,such as amino acids.

Match the following terms with the description to which they best correspond. -thrives in high salt conditions

Dinoflagellates typically have ; some photosynthetic species live inside coral cells,which they supply with _.

It is thought that viruses may have originated from cells because ____.

Match the prokaryote with the correct description. -These can live in water of very high salt concentration.

Label the figure below showing three mechanisms of gene exchange in prokaryotic cells. -transformation

Both mitochondria and chloroplasts are thought to have evolved by the process of ____.

Label the figure below showing a generalized prokaryotic cell. -cell wall

____ may have been the ancestors of cellular life.

Match the following bacterial diseases with the proper description. -childhood respiratory disease

Bacteria can exchange genes with other bacteria by a method called ____.

Match the following terms with the description to which they best correspond. -multicellular protist able to live in deep ocean water

The fusion of gametes of malaria-causing Plasmodium takes place ____.

Match the following terms with the description to which they best correspond. -cause of algal blooms

Algins,thickening compounds used in the food industry,are obtained from ____.

Match the following bacterial diseases with the proper description. -sore throat,can damage heart

In panel "A",what is being injected into the host cell?

Invitation To Biology

Molecules Of Life

Cell Structure

Energy And Metabolism

Capturing And Releasing Energy

DNA Structure And Function

Gene Expression AND Control

How Cells Reproduce

Patterns Of Inheritance

Biotechnology

Evidence Of Evolution

Processes Of Evolution

Plants And Fungi

Animal Evolution

Population Ecology

Communities And Ecosystems

The Biosphere And Human Effects

Filters

Exam 13: Early Life Forms And The Viruses

The ____ form of Plasmodium is transferred to humans through the bite of an infected mosquito.

Viral infections in plants often occur by the action of _____.

Two researchers suggested in the 1960s that ____ may have been the first informational molecule.

Scientists hypothesize that ____ served as a primitive template for forming polymer chains from organic subunits,such as amino acids.

Match the following terms with the description to which they best correspond. -thrives in high salt conditions

Dinoflagellates typically have ____; some photosynthetic species live inside coral cells,which they supply with _____.

It is thought that viruses may have originated from cells because ____.

Match the prokaryote with the correct description. -These can live in water of very high salt concentration.

Label the figure below showing three mechanisms of gene exchange in prokaryotic cells. -transformation

Both mitochondria and chloroplasts are thought to have evolved by the process of ____.

Label the figure below showing a generalized prokaryotic cell. -cell wall

____ may have been the ancestors of cellular life.

Match the following bacterial diseases with the proper description. -childhood respiratory disease

Bacteria can exchange genes with other bacteria by a method called ____.

Match the following terms with the description to which they best correspond. -multicellular protist able to live in deep ocean water

The fusion of gametes of malaria-causing Plasmodium takes place ____.

Match the following terms with the description to which they best correspond. -cause of algal blooms

Algins,thickening compounds used in the food industry,are obtained from ____.

Match the following bacterial diseases with the proper description. -sore throat,can damage heart

In panel "A",what is being injected into the host cell?

Invitation To Biology

Molecules Of Life

Cell Structure

Energy And Metabolism

Capturing And Releasing Energy

DNA Structure And Function

Gene Expression AND Control

How Cells Reproduce

Patterns Of Inheritance

Biotechnology

Evidence Of Evolution

Processes Of Evolution

Plants And Fungi

Animal Evolution

Population Ecology

Communities And Ecosystems

The Biosphere And Human Effects

Filters

Dinoflagellates typically have ; some photosynthetic species live inside coral cells,which they supply with _.