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BIOS256 Week 8 Exam 3

Question

Which electrolytes are primarily found in intracellular fluid? Select all that apply.

1. Calcium
2. Sodium
3. Potassium ✅
4. Magnesium ✅
5. Phosphate ✅

Question

Which uterine layer is shed during menstruation cycle?

1. Cervix
2. Myometrium
3. Basal lamina
4. Endometrium ✅
5. Perimetrium

Question

What is the highlighted reproductive structure indicated by the arrow?

1. Greater vestibular gland
2. Labia majora
3. Clitoris
4. Labia minora ✅
5. Cervix

Question

Which hormone is secreted by the corpus luteum to support early pregnancy?

1. Prolactin
2. LH
3. Estrogen
4. Progesterone ✅
5. FSH

Question

Which cell type in the testes supports and nourishes developing sperm?

1. Macrophages
2. Sertoli cells ✅
3. Spermatids
4. Spermatogonia
5. Leydig cells

Question

In metabolic alkalosis, which of the following is most likely elevated?

1. Carbon dioxide levels
2. Hydrogen ion concentration
3. Bicarbonate concentration ✅
4. Potassium
5. Lactic acid

Question

What is the highlighted reproductive structure indicated by the arrow?

1. Epididymis
2. Corpora cavernosa
3. Corpus spongiosum ✅
4. Seminal vesicle
5. Seminiferous tubule

Question

During meiosis, which process ensures that homologous chromosomes exchange segments, increasing genetic diversity?

1. Translation
2. Crossing over ✅
3. Replication
4. Independent assortment
5. Nondisjunction

Question

When blood CO₂ levels rise, what is the immediate effect on blood pH?

1. pH remains unchanged
2. pH increases, causing alkalosis
3. pH decreases, causing acidosis ✅
4. bicarbonate levels rapidly increase
5. oxygen dissociation decreases

Question

Which process creates gametes with half the normal number of chromosomes?

1. Translation
2. Transcription
3. Meiosis ✅
4. Mitosis
5. Replication

Question

A person with genotype Aa for a trait is considered __________.

1. polygenic
2. heterozygous ✅
3. codominant
4. homozygous recessive
5. homozygous dominant

Question

Which fluid compartment contains the greatest percentage of total body water?

1. Interstitial fluid
2. Extracellular fluid
3. Intracellular fluid ✅
4. Cerebrospinal fluid
5. Transcellular fluid

Question

Which of the following is the correct order of the stages of labor?

1. Expulsion phase → placental phase → dilation phase
2. Expulsion phase → dilation phase → placental phase
3. Dilation phase → placental phase → expulsion phase
4. Dilation phase → expulsion phase → placental phase ✅
5. Placental phase → dilation phase → expulsion phase

Question

Potassium plays a critical role in which cellular function?

1. Bone mineralization
2. Collagen synthesis
3. Maintaining resting membrane potential ✅
4. Forming stomach acid
5. Blood clotting

Question

Which term refers to the observable physical traits of an individual?

1. Genome
2. Phenotype ✅
3. Karyotype
4. Allele
5. Genotype

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Related: (Completed) BIOS256 Week 5 Exam 2