Biology

A patient experiences an exaggerated immune response after being exposed to pollen, resulting in sneezing, hives, and difficulty breathing. What term best describes this type of immune reaction?

A. Hypersensitivity

B. Autoimmunity

C. Immunodeficiency

D. Inflammation

Which of the following types of bacteria are rod-shaped bacilli with a distinct cell wall that differs from that of most bacteria?



A. Mycoplasmas

B. Rickettsiae

C. Mycobacteria

D. Chlamydiae

The plasma membrane is

A. around the nucleus

B. permeable

C. rigid

D. semipermeable

$400 Question

Stem cells that can develop into any type of cell are referred to as

A) Pluripotent

B) Multipotent

C) Totipotent

D) Unipotent

The third level of cell organization is the



A. organ level

B. system level

C. tissue level

D. organism level

The third level of cell organization is the:

A. organ level

B. system level

C. tissue level

D. organism level

Codons Found in Messenger RNA



| First Base | v | c | A | 0 | Third Base |

| :--------- | :-- | :-- | :-- | :-- | :--------- |

| v | Pret | Set | 77- | 0,5 | U |

| | Phe | Ser | Tyn | Cy | c |

| | Leu | Ser | Stop | Stop | A |

| | Lev | Ser | Styp | Tp | 9 |

| c | Lev | Pro | Hs | Avg | U |

| | Leu | Pro | Hs | Avg | C |

| | Leu | Pro | $G_{n}$ | Avg | A |

| | Leu | Pro | Gn | Avg | 0 |

| A | He | The | A. in | Ser | U |

| | le | The | A. 1 | Ser | C |

| | lle | Thr | Ly | Arg | A |

| | Met(start) | Tr | Lys | Arg | 0 |

| 0 | 4ve | Als | Asp | Biy | 0 |

| | Val | Ala | Asp | Gly | c |

| | Val | Ala | G J | Gly | A |

| | Val | Ala | G) | Gly | 0 |



This table shows the codons found in messenger RNA. Using this information, what sequence of nucleodides in the template strand of DNA could code for the polypeptide sequence Phe-Ser-Gin?

A. UUCUCU-CAA

B. ANOAOA-GT

TTC-TCT-CAA

AAG-AGA-GUU

Which of the following factors might affect biodiversity?

a. food

b. shelter

c. biodiversity

d. all of the above

A pediculicide shampoo kills:

Select one:

a. lice

b. cocci

c. bacilli

d. spirilla

Which of the following is NOT a function of the epidermis?

A. Excretion

B. Water reservoir

C. Protection

D. Temperature regulation

E. Metabolic functions

Which of the following structures is a sensory receptor located in the integument?

A. Pacinian corpuscles

B. Eccrine sweat gland

C. Sebaceous glands

D. Apocrine sweat gland

E. Cutaneous vascular plexus

All of the following are functions of the skeletal system EXCEPT:

A. producing red blood cells

B. providing support for the body

C. producing white blood cells

D. producing ligaments and tendons

Which gland is limited to axillary and anogenital areas and is only functional from puberty onwards?

A. Pacinian corpuscles

B. Apocrine sweat gland

C. Sebaceous gland

D. Hair follicles

E. Eccrine sweat gland

Which group of cells in the epidermis function as part of the human immune system?



A. Keratinocytes

B. Melanocytes

C. Epidermal dendritic (Langerhans) cells

D. Tactile cells

E. None of the above

The presence of organic material in soil makes it more productive for plant growth.

Please select the best answer from the choices provided.



T or F

Which describes a disruption in the water cycle that could affect photosynthesis?



A. Heat causes an excess of transpiration.

B. Heat causes an excess of evaporation.

C. Heat causes an excess of condensation.

D. Heat causes an excess of precipitation.

The causative agent of Lyme disease is

A. Ixodes scapularis

B. Borrelia hermsii

C. Borrelia burgdorferi

D. Ixodes pacificus

E. Leptospira interrogans

In the area with the largest sea lamprey population, what is being done to reduce this population?

The epidermis of the skin is comprised of

A. Simple squamous epithelium

B. Stratified squamous epithelium

C. Reticular connective tissue

D. Adipose connective tissue

E. Areolar connective tissue

Which of the following structures of the digestive system is most essential to sustain life?

A. esophagus

B. gallbladder

C. appendix

D. colon

About how much water does plasma consist of?

Select one:

A. 0.25

B. 0.4

C. 0.5

D. 0.9

Select all that apply.

Which of the following are common shape classifications for bacteria?

Coccus

Rectangle

Shigellar

Spirillum

Bacillus

Salmonelloses are

A. not caused by Salmonella typhi

B. associated with undercooked poultry and eggs, and reptile and rodent feces

C. types of gastroenteritis with vomiting and diarrhea

D. treated with fluid and electrolyte replacement

E. All of the choices are correct.

Which of the following are eukaryotic organisms with a rigid cell wall at some stage in their life cycle?

A. Streptococci

B. Staphylococci

C. Protozoans

D. Fungi

Which of the following vectors is transmitted by mosquitos?



A. Malaria

B. Hepatitis B

C. Lyme disease

D. Chlamydia

Mycobacteria that causes disease in humans include

A. virus

B. AIDS

C. tuberculosis

D. leprae

Select all that apply.



Certain protozoans are pathogenic, causing which of the following diseases?



☐ Ringworm infection

☐ Anemia

☐ Malaria

☐ Trichomoniasis vaginitis

☐ Amebic dysentery