#1
Which of the following structures is responsible for the production of ATP in a cell?
Ribosome
Nucleus
Mitochondria
Endoplasmic reticulum
#2
What is the function of a microscope's condenser?
To focus light onto the specimen
To magnify the specimen
To hold the specimen in place
To adjust the intensity of light
#3
What is the function of a centrifuge in a laboratory?
To measure temperature
To separate components of a mixture based on density
To measure pH
To magnify microscopic specimens
#4
Which of the following is NOT a type of microscope commonly used in biological laboratories?
Scanning electron microscope
Fluorescence microscope
Phase-contrast microscope
Geological microscope
#5
What is the function of a coverslip in microscopy?
To adjust the focus
To hold the specimen in place
To protect the objective lens
To enhance contrast
#6
Which of the following is NOT a component of the cell membrane?
Phospholipids
Proteins
Nucleic acids
Cholesterol
#7
Which organelle is responsible for the synthesis of proteins in a cell?
Mitochondria
Golgi apparatus
Ribosome
Lysosome
#8
Which of the following is NOT a type of tissue found in the human body?
Epithelial tissue
Muscle tissue
Osseous tissue
Ionic tissue
#9
What is the purpose of a microtome in a laboratory setting?
To measure small volumes of liquid
To slice thin sections of tissue for microscopic examination
To sterilize equipment
To mix reagents
#10
What is the function of a hemocytometer?
To measure blood pressure
To count cells in a sample
To measure blood glucose levels
To measure blood oxygen levels
#11
Which of the following is a common fixative used to preserve biological specimens?
Ethanol
Acetone
Formalin
Methanol
#12
What is the primary function of a spectrophotometer in a laboratory?
To measure the concentration of substances in a solution
To measure temperature
To separate components of a mixture
To measure pH
#13
Which of the following is a type of staining technique used in microscopy to visualize lipids?
Hematoxylin and eosin staining
Oil Red O staining
Giemsa staining
Wright's stain
#14
Which of the following is NOT a type of epithelial tissue?
Squamous epithelium
Cuboidal epithelium
Columnar epithelium
Adipose epithelium
#15
Which of the following is a common stain used in histology to distinguish cell nuclei?
Hematoxylin
Eosin
Methylene blue
Crystal violet
#16
Which of the following is NOT a function of a microtubule in a cell?
Providing structural support
Facilitating cell movement
Transporting vesicles
Synthesizing proteins
#17
What is the function of a microfuge tube in a laboratory?
To culture cells
To centrifuge small volumes of liquid
To incubate samples
To store reagents
#18
Which of the following is a commonly used fluorescent dye in microscopy to label DNA?
Giemsa stain
Hoechst stain
Periodic acid-Schiff stain
Wright's stain
#19
Which of the following is a commonly used stain in histology to visualize connective tissue?
Hematoxylin
Eosin
Masson's trichrome
Wright's stain