Hesi A2 BiologyV2

The aerodynamic nature of a bird's wing is an example of what central theme in

biology?

• A. Organisms and their environment

• B. Ontogeny

• C. Structure and function

• D. Heredity

Correct Answer: C. Structure and function

What part of a plant cell acts as a barrier and provides support to the cell?

• A. Chloroplast

• B. Cell membrane

• C. Xylem

• D. Cell wall

Correct Answer: D. Cell wall

Which antioxidant is identified as a healing vitamin?

• A. D

• B. K

• C. A

• D. E

Correct Answer: C. A

Which is an example of the correct organizational hierarchy for a wolf?

• A. Muscle tissue, blood cell, DNA, organ, circulatory system, wolf

• B. DNA, blood cell, muscle tissue, heart, circulatory system, wolf

• C. Circulatory system, DNA, muscle tissue, blood cell, heart, wolf

• D. Blood cell, organ, circulatory system, muscle tissue, DNA, wolf

Correct Answer: B. DNA, blood cell, muscle tissue, heart, circulatory system, wolf

Which method of glucose conversion generates the most usable and efficient form of

ATP within the human body?

• A. Aerobic respiration

• B. Anaerobic respiration

• C. Lactic acidosis

• D. Fermentation conversion

Correct Answer: A. Aerobic respiration

Which combination of cell cycle phase and descriptor is correct?

• A. S phase - the cell synthesizes DNA and doubles its cytoplasm

• B. G₁ phase - the amount of chromosomes is doubled

• C. G₂ phase - the phase prior to the start of mitosis in which the cell continues to grow in size

and make proteins

• D. Interphase - the cell increases in mass and number of organelles to prepare for cell division

Correct Answer: C. G₂ phase - the phase prior to the start of mitosis in which the cell continues to grow in size

and make proteins

What structure allows sperm cells to move?

• A. Centriole

• B. Cilium

• C. Centrosome

• D. Flagellum

Correct Answer: D. Flagellum

What is the first step in the process of respiration?

• A. Fermentation

• B. Krebs cycle

• C. Electron transport chain

• D. Glycolysis

Correct Answer: D. Glycolysis

Which cell organelle can be functionally compared to the door of a house?

• A. Endoplasmic reticulum

• B. Cell membrane

• C. Nucleus

• D. Cytoplasm

Correct Answer: B. Cell membrane

If the zygomatic arch is broken, where is the fracture located?

• A. Face

• B. Knee

• C. Shoulder

• D. Wrist

Correct Answer: A. Face

What part of a light microscope is used to hold the slide in place?

• A. Base

• B. Arm

• C. Rack stop

• D. Stage clips

Correct Answer: D. Stage clips

What does the mitochondrion produce that causes it to often be called the

powerhouse of the cell?

• A. ATP

• B. Enzymes

• C. DNA

• D. Proteins

Correct Answer: A. ATP

Which term means a group of similar cells combined to perform a common function?

• A. Tissue

• B. Organism

• C. System

• D. Organ

Correct Answer: A. Tissue

Which term means alternate forms of a gene for the same trait?

• A. Genotypes

• B. Alleles

• C. Gametes

• D. Phenotypes

Correct Answer: B. Alleles

Human cells need oxygen for respiration. What system of the body is responsible for

transporting an oxygen molecule to different locations throughout the body?

• A. Skeletal

• B. Lymphatic

• C. Circulatory

• D. Respiratory

Correct Answer: C. Circulatory

Each species has a characteristic chromosome number, and most of their cells have a

complete set of these chromosomes. However, in the life cycle of humans, only sperm and eggs have

which number of chromosomes?

• A. Diploid

• B. Polyploid

• C. Monoploid

• D. Haploid

Correct Answer: D. Haploid

Which set is correctly listed from characteristic chromosome number, and most of

their cells have a complete set of these chromosomes

• A. Genus, order, species, phylum

• B. Order, phylum, species, genus

• C. Species, order, phylum, genus

• D. Phylum, order, genus, species

Correct Answer: D. Phylum, order, genus, species

On what part of a light microscope is the slide placed?

• A. Stage

• B. Arm

• C. Lens

• D. Base

Correct Answer: A. Stage

What type of bond in the base of the DNA nucleotides holds the strands together?

• A. Hydrogen

• B. Sodium chloride

• C. Copper

• D. Potassium bromide

Correct Answer: A. Hydrogen

Aerobic respiration occurs in the presence of what necessary molecule?

• A. Oxygen

• B. Lactic acid

• C. Carbon dioxide

• D. Water

Correct Answer: A. Oxygen

What is the purpose of cellular respiration?

• A. Enable fermentation

• B. Produce enzymes

• C. Produce oxygen molecules

• D. Obtain energy in the form of ATP

Correct Answer: D. Obtain energy in the form of ATP

How are viruses categorized?

• A. Size and shape

• B. Presence or absence of an outer envelope

• C. All of these are ways in which a virus is categorized

• D. Type of nucleic acid

Correct Answer: C. All of these are ways in which a virus is categorized

Animals are composed primarily of what type of cell?

• A. Eukaryotic

• B. Simple

• C. Prokaryotic

• D. Bacterial

Correct Answer: A. Eukaryotic

Where in the cell does the Krebs cycle take place?

• A. Mitochondrion

• B. Cytoplasm

• C. Nucleus

• D. Chloroplast

Correct Answer: A. Mitochondrion

Which genetic descriptor refers to an organism's actual appearance?

• A. Phenotype

• B. Genotype

• C. Homozygote

• D. Karyotype

Correct Answer: A. Phenotype