3Q Review Quiz

Which of the following microbes cannot reproduce unless it first infects a cell in a host organism?

• bacteria

• viruses

• protozoa

• parasites

The sudden outbreak of a disease can be classified as an epidemic or a pandemic depending on

• whether a virus or bacterium caused the initial outbreak.

• whether the disease is transmitted by air or by direct contact.

• whether anyone has died from the disease or not.

• whether the outbreak is isolated to a region or widespread.

• pandemic

• epidemic

• blight

• all of these

Which of these is a substance or compound that kills or inhibits bacteria?

• germ

• vaccine

• antibiotic

• microorganism

Sabrina has the flu. Sabrina's neighbor suggests that she get a prescription for an antibiotic, but Sabrina's mother says that antibiotics would not help in this situation. Why?

• The flu is caused by a fungus, and it must be treated with an antifungal medication.

• The flu is caused by a parasitic worm, and it must be treated with an antihelmintic medication.

• The flu is caused by a virus, and it cannot be treated with an antibiotic.

• The flu is caused by a bacterium, and it cannot be treated with an antibiotic.

A pandemic is a disease outbreak that impacts a very large region. Two historical examples of this include the Spanish flu, which resulted in the deaths of between 20 million and 50 million people in 1918, and the Asian flu, which resulted in the deaths of about 2 million people in 1957.

Which of the following factors contributes the most to multiple influenza pandemics?

• Influenza viruses spread easily from person to person.

• Influenza viruses can only be passed from parents to offspring.

• People become immune to the influenza virus once they have it.

• Influenza viruses can easily be treated with antibiotics.

The main purpose of respiration in cells is to produce _______.

• water

• oxygen

• waste

• energy

How do the nutrients that enter our cells compare with the food we eat?

• The nutrients that enter our cells do not come from the food we eat.

• The nutrients that enter our cells are exactly the same as the food we eat, just smaller pieces.

• The nutrients that enter our cells are in the same form as the food we eat.

• The food we eat is broken down into individual, microscopic nutrient molecules which enter the cell.

Living things need food to survive. Plants make their own food through the process of photosynthesis, and animals get food by eating plants and/or other animals.

Through the process of cellular respiration, living things release energy from the sugar found in their food to carry out their life processes. The other substances found in the food may be excreted as waste or are most often used for

• promoting mutations.

• building and repairing cell parts

• storing and eliminating body tissues

• inhibiting reproduction

How do marathon runners maintain healthy heart and lung systems?

• They exercise on a regular basis.

• They don't sleep much.

• They eat very little food.

• They watch a lot of movies