CERTIFICATION — CATEGORY 2 FOREST PEST CONTROL
EXAMINATION
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Sample Exam: Anatomy & Physiology (Questions 1-100)
Instructions: Choose the best answer for each question.
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1. Which of the following is the functional unit of the kidney?
A) Neuron
B) Hepatocyte
C) Nephron
D) Alveolus
Answer: C
Rationale: The nephron is the microscopic structural and functional unit of the
kidney responsible for filtering blood and forming urine. Neurons are in the
nervous system, hepatocytes in the liver, and alveoli in the lungs.
2. The tricuspid valve is located between which two chambers of the heart?
A) Left atrium and Left ventricle
B) Right atrium and Right ventricle
C) Left ventricle and Aorta
D) Right ventricle and Pulmonary artery
,Answer: B
Rationale: The tricuspid valve, having three cusps, separates the right atrium
from the right ventricle. The mitral (bicuspid) valve is on the left, and the
aortic/pulmonary valves are semilunar valves guarding the great vessels.
3. Which cranial nerve is responsible for the sense of smell?
A) Optic (CN II)
B) Trochlear (CN IV)
C) Olfactory (CN I)
D) Trigeminal (CN V)
Answer: C
Rationale: Cranial Nerve I (Olfactory) is a sensory nerve responsible for
transmitting the sense of smell from the nasal cavity to the brain. The Optic
nerve (CN II) is for vision.
4. What is the primary function of the enzyme DNA polymerase in DNA
replication?
A) Unwind the double helix
B) Synthesize a new DNA strand
C) Join Okazaki fragments
D) Transcribe mRNA
Answer: B
Rationale: DNA polymerase is the primary enzyme that adds nucleotides to a
growing DNA strand during replication. Helicase unwinds the helix, and ligase
joins fragments.
5. The resting membrane potential of a typical neuron is approximately:
,A) +30 mV
B) -70 mV
C) 0 mV
D) -90 mV
Answer: B
Rationale: The resting membrane potential of a typical neuron is around -70
millivolts (mV), maintained by the sodium-potassium pump and the
differential permeability of the membrane to potassium ions.
6. Which of the following hormones is primarily responsible for lowering
blood glucose levels?
A) Glucagon
B) Cortisol
C) Insulin
D) Growth Hormone
Answer: C
Rationale: Insulin is the primary anabolic hormone secreted by the beta cells
of the pancreas that facilitates glucose uptake by cells, lowering blood glucose.
Glucagon has the opposite effect.
7. The process of bone formation by osteoblasts is known as:
A) Osteolysis
B) Ossification
C) Hematopoiesis
D) Resorption
Answer: B
, Rationale: Ossification (or osteogenesis) is the process of bone formation by
osteoblasts. Osteolysis/resorption is bone breakdown by osteoclasts, and
hematopoiesis is blood cell formation.
8. A patient with damage to the left visual cortex will experience blindness in
which field?
A) Left visual field of both eyes
B) Right visual field of both eyes
C) Left eye only
D) Right eye only
Answer: B
Rationale: The visual pathways cross at the optic chiasm. The left visual cortex
processes information from the right visual field of both eyes. Damage here
causes right homonymous hemianopia.
9. Which layer of the skin contains the hair follicles and sebaceous glands?
A) Epidermis
B) Stratum Corneum
C) Hypodermis
D) Dermis
Answer: D
Rationale: The dermis is the middle layer of the skin containing blood vessels,
nerve endings, hair follicles, and glands (sebaceous and sweat). The epidermis
is the avascular outer layer.
10. What is the primary neurotransmitter released at the neuromuscular
junction?
A) Norepinephrine