NU110: INTEGRATED HUMAN SCIENCES
NU-110 | EXAM 1
Name: ____________________________________ Date: __________________ Score: ______ / 100.
1. Where are blood formed elements produced, and what are their precursor cells called?
A. In red bone marrow, from hematopoietic stem cells
B. In the liver, from epithelial stem cells
C. In the heart, from plasma cells
D. In lymph nodes, from endothelial stem cells
✓ Correct answer: A. In red bone marrow, from hematopoietic stem cells
Rationale: The source says formed elements are produced in red bone marrow and identifies hematopoietic
stem cells as the ancestors of blood cells.
2. Which cartilage can spring back into shape after it is bent?
A. Compact bone
B. Fibrocartilage
C. Hyaline cartilage
D. Elastic cartilage
✓ Correct answer: D. Elastic cartilage
Rationale: The source describes elastic cartilage as springing back into shape after bending.
3. A lymph node group in the neck drains parts of the head and neck and may enlarge during an upper
respiratory infection. Which group is this?
A. Axillary nodes
B. Mesenteric nodes
C. Cervical nodes
D. Inguinal nodes
✓ Correct answer: C. Cervical nodes
Rationale: Cervical nodes are located in the neck, drain parts of the head and neck, and may enlarge during
upper respiratory infections.
4. Which immune cell type is identified as primarily responsible for fighting bacterial infections?
A. Neutrophils
B. Regulatory T cells
C. Erythrocytes
D. Memory T cells
✓ Correct answer: A. Neutrophils
Rationale: The notes identify neutrophils as cells primarily responsible for fighting bacterial infections.
5. Which description best fits connective tissue?
A. It transmits impulses and has no supporting material.
B. It has abundant nonliving matrix containing varying amounts of water, protein fibers, and minerals.
C. It is made exclusively of muscle fibers that contract.
D. It consists only of tightly packed epithelial cells with no matrix.
✓ Correct answer: B. It has abundant nonliving matrix containing varying amounts of water, protein
fibers, and minerals.
Rationale: Connective tissue contains substantial matrix and helps support and form the framework of body
parts.
Integrated Human Sciences | Exam 1 | 1
, GALEN COLLEGE OF NURSING • NU-110
6. Which statement about lymph nodes is correct according to the notes?
A. They filter lymph and provide sites where lymphocytes multiply and work.
B. They pump blood through the pulmonary circuit.
C. They produce bile and store it until digestion begins.
D. They form cartilage at the ends of long bones.
✓ Correct answer: A. They filter lymph and provide sites where lymphocytes multiply and work.
Rationale: The source says lymph nodes filter lymph as it travels and are sites where lymphocytes multiply
and work against foreign organisms.
7. A cell moves ions against their concentration gradient using membrane pumps. Which process is
required?
A. Osmosis
B. Diffusion
C. Active transport
D. Filtration
✓ Correct answer: C. Active transport
Rationale: Active transport moves materials against a concentration gradient using transporters and requires
chemical energy.
8. Which formed elements primarily help fight infection?
A. Erythrocytes
B. Leukocytes
C. Thrombocytes
D. Plasma
✓ Correct answer: B. Leukocytes
Rationale: Leukocytes are white blood cells and help fight infection.
9. Two atoms form a bond by transferring electrons from one atom to another. Which type of bond is
formed?
A. Covalent bond
B. Hydrogen bond
C. Ionic bond
D. Peptide bond
✓ Correct answer: C. Ionic bond
Rationale: Ionic bonds form when electrons are transferred between atoms.
10. A membrane protein forms a pore through which specific ions or water may pass. Which protein
function is described?
A. Transporter
B. Receptor
C. Linker
D. Channel
✓ Correct answer: D. Channel
Rationale: Channels are pores that allow specific substances, including certain ions and water, to enter or
leave.
11. Which statement about erythrocytes is supported by the source?
A. They are the primary cells that fight bacterial infection.
B. They are fragments that prevent fluid loss by forming antibodies.
C. They make up the liquid portion of blood.
D. They contain hemoglobin, which binds oxygen.
✓ Correct answer: D. They contain hemoglobin, which binds oxygen.
Rationale: Erythrocytes are red blood cells; hemoglobin within them binds oxygen.
Integrated Human Sciences | Exam 1 | 2