Structure and Function of Living Organisms

Structure and Function of Living Organisms Quiz

8.L.1 Understand the structure and hazards caused by agents of disease that effect living organisms. 8.L.1.1 Summarize the basic characteristics of viruses, bacteria, fungi and parasites relating to the spread, treatment and prevention of disease

The Nitrogen Cycle Summary

• Nitrogen gas is in the air.

• Bacteria in plants and the soil change nitrogen gas into nitrates.

• Plants and animals use nitrates to make proteins they need to grow.

• Bacteria change nitrates from waste and dead plants and animals back into nitrogen gas.

Human activity

• Nitrogen build up in the air can cause smog and acid rain.

Multiple Choice

What is the nitrogen cycle?

• the process of chemically producing nitrogen to be used by plants and animals

• the process green plants use to make food

• the process of continually recycling nitrogen from living things to non-living things between Earth and its atmosphere

• the process of recycling carbon from living things to non-living things between Earth and its atmosphere

Multiple Choice

The Nitrogen Cycle

How do humans get nitrogen?

• by breathing it in

• by drinking water

• by eating plants

• by producing it naturally in their digestive systems

Multiple Choice

Which of the following comes first in the process of nitrification?

• Plants use nitrates to create protein.

• Bacteria in the plant turn the nitrogen gas into ammonia.

• Bacteria turn the nitrites into nitrates.

• Nitrogen gas travels from the air to the soil.

Multiple Choice

How do nitrates turn back into nitrogen gas?

• Animals release nitrogen gas when they breathe out during respiration.

• Plants give off nitrogen gas after they have used all the nitrates that they needed.

• Plants and animals die, and decomposers release nitrogen gas back into the air.

• Bacteria turns the nitrates back into nitrogen gas, which gets released through the roots of the plant and back into the air.

Multiple Choice

Which of the following is one of the key components of the nitrogen cycle?

• carnivores

• rain

• the Sun

• bacteria

Multiple Choice

What do plants and animals use nitrates for?

• to produce sugars they need for energy

• to create the protein they need to live and grow

• to aid in photosynthesis and respiration

• to assist in digestion

Multiple Choice

How are people upsetting the nitrogen cycle?

• by building up too much nitrogen in the air

• by creating too much bacteria in the soil

• by riding their bikes

• by breathing in too much nitrogen

Biotechnology

• use of technology to change the genetic makeup of living things for human purposes.

• the purpose of biotechnology is to create organisms that are useful to humans.

• 2 fields that biotechnology is mainly used in is agriculture and medicine. 

• Bacteria can be genetically modified to create insulin.

Open Ended

In your own words explain what biotechnology is.

Genetic Modification

•  ways to alter the genetic makeup of living organisms and plants to give them traits that are beneficial to humans

Open Ended

What is genetic modification?

Some crops can be genetically modified to be resistant to some insects, and as a result they do not require pesticides. 

Open Ended

What are the 2 main fields that biotechnology is used in?

Open Ended

How is insulin made?

Multiple Select

Which of the below choices is an infectious disease? (There is more than one answer choice.)

• Cancer

• Malaria

• Covid 19

• Common cold

Multiple Choice

An infectious disease is any disease caused by a ____________ (germ) that can be transmitted(spread) between organisms.

• antigen

• microbe

• pathogen

Multiple Select

Examples of pathogens are ...

Remember: Different kinds of pathogens cause different kinds of diseases.

• bacteria

• fungi

• viruses

• parasites

Multiple Select

Why is cancer not an infectious disease?

• It cannot be transmitted

• It does not have a pathogen

• The cells multiply uncontrollably

Multiple Choice

Which is a distinction between an epidemic and a pandemic?

• the symptoms of the disease

• the geographical area affected

• the species of organisms infected

• the season in which the disease spreads

Open Ended

Is Covid 19 considered a pandemic or epidemic. Explain your answer.

Open Ended

Explain the differences between bacteria and viruses.

Multiple Select

What is the pathogen that causes malaria? Also, what is the vector that spreads malaria?

• viruses and water droplets

• parasites and mosquitoes

Have a safe and fun weekend! Bye!!!!!!!!