Essential Tools for Biologists

What is the primary function of a microscope?

• To create 3D models of large structures.

• To magnify small objects for detailed observation.

• To illuminate dark areas for photography.

• To measure the temperature of small objects.

Name one type of microscope used in biological studies.

• Stereoscope

• Telescope

• Light microscope

• Electron microscope

What safety equipment is essential when handling chemicals in a lab?

• Safety goggles, gloves, lab coat, and fume hood.

• First aid kit, fire extinguisher, and a whistle.

• Safety boots, hard hat, and ear protection.

• Sunscreen, flip-flops, and a beach towel.

Why is it important to wear gloves in a biology lab?

• It is important to wear gloves to prevent contamination and protect against harmful substances.

• Gloves are only needed for handling animals.

• Gloves are used to improve grip on lab equipment.

• Wearing gloves is a fashion statement in labs.

What is the purpose of a centrifuge in biological research?

• To store biological samples at low temperatures.

• To mix biological samples thoroughly.

• To heat biological samples for analysis.

• To separate biological samples based on density.

Describe one application of fluorescence microscopy.

• One application of fluorescence microscopy is studying protein localization in live cells.

• Visualizing the surface topography of cells

• Measuring the temperature of a sample

• Analyzing the chemical composition of materials

What imaging technique uses sound waves to visualize structures?

• Ultrasound

• X-ray

• CT scan

• MRI

What is the role of a spectrophotometer in biology?

• To provide visual images of cells under a microscope.

• To amplify sound in biological experiments.

• To measure temperature changes in samples.

• The role of a spectrophotometer in biology is to measure the absorbance of light by biological samples to determine the concentration of substances.

Name a common tool used for genetic modification.

• DNA sequencing

• PCR

• Gene therapy

• CRISPR-Cas9

What is CRISPR and how is it used in genetic engineering?

• CRISPR is a gene-editing technology used in genetic engineering to modify DNA sequences and regulate gene expression.

• CRISPR is a natural process that occurs in all living cells.

• CRISPR is a method for cloning entire organisms.

• CRISPR is a type of virus that causes genetic diseases.