6th Grade Science Chapter 12 Managing Materials In The Body

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There are a lot of materials that come into our body but not all of them are beneficial to the functioning of the body. This therefore puts emphasis on the body choosing which materials to keep and which to discard. Take up the quiz below and get to review chapter 12 on managing material in the body. All the best!

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6th Grade Science Chapter 12 Managing Materials In The Body

_____________ provides your body with materials to grow and repair tissues. It also provides energy for everything you do.

This is the unit used to measure the energy and foods:

____________ are the substances in foods that provide the raw materials and energy the body needs to carry out all its processes.

Which of these is NOT one of the 6 types of nutrients that people need?

Simple carbohydrates, called ________, can give you a quick burst of energy.

________ are complex carbohydrates that can provide long-term energy as they break down into simple carbohydrates.

________, a specific carbohydrate, helps your digestive system function properly however your body can't digest it.

No more than 30% of your daily Calories should come from ________.

All of these are different types of fats EXCEPT:

Proteins are made up of small, linked units called ________.

Vitamins provide the body with raw materials and energy.

Vitamins act as helper molecules in your body's chemical reactions.

Nutrients that aren't made by living things are called ________.

Minerals do not provide your body with raw materials and energy.

Your body needs small amounts of minerals to carry out chemical processes.

________ is the most important nutrient required by all the body's vital processes.

Water accounts for about ________ of the average healthy person's body weight because it makes up most of the body's fluids, including blood

Under normal conditions, you need to take in about ______________ of water every day to stay healthy.

Your entire digestive system is about _________ long from beginning to end.

All of these are jobs of the digestive system EXCEPT:

The process by which your body breaks down food into small nutrient molecules is called ________.

In mechanical digestion, bits of food are torn or ground into smaller pieces. This kind of digestion occurs mostly in the:

In chemical digestion, chemicals break foods into their building blocks. This takes place in many parts of the digestive system but primarily in the:

________ is the process by which nutrient molecules pass from your digestive system into your blood.

Absorption takes place before digestion.

Most absorption occurs in the:

The large intestine eliminates materials that aren't absorbed.

________ is the fluid released by glands in your mouth when you eat. It contains a chemical that can break down starches (carbohydrates) into sugars.

The release of saliva into your mouth to break down starches and sugars begins the ________ digestion process.

An ________ is a protein that speeds up chemical reactions in the body. It is the chemical substance in saliva that digests starch.

Each enzyme has a specific chemical shape that enables it to speed up only one kind of reaction.

The ________ is a J-shaped muscular, sac-like, digestive pouch attached to the lower end of the esophagus

The ________ is where most mechanical digestion and some chemical digestion occur.

Digestive ________ is a fluid produced by cells that line the stomach. It contains the enzyme ________ that chemically digests proteins into short chains of amino acids.

Waves of involuntary muscle contractions, called ________, push food through the esophagus and the rest of the digestive system.

Once food undergoes mechanical digestion in the stomach, it enters the small intestine as a thick, soupy liquid called ________.

The small intestine makes up __________ of the length of the digestive system.

The ________ is where most chemical digestion and absorption takes place.

The diameter of the small intestine is about:

Substances (bile and enzymes) produced by these organs and the lining of the small intestine help to complete chemical digestion: ________ and ________.

The ________ is an organ located between the stomach and small intestine. It makes fluids (enzymes and mucus) that protect the small intestine from the acid in chyme.

The ________ is a large, reddish-brown organ that helps with digestion by making bile to break up fat and break down toxins and it also stores excess nutrients until the body is ready to absorb them into the bloodstream.

Bile (liver oil) is stored in a sac-like organ called the ________ which squeezes the bile into the small intestine.

The inner surface of the small intestine is folded into and lined with millions of tiny finger-shaped structures called ________, which greatly increase the surface area of the small intestine and help absorption to occur.

By the time material reaches the end of the small intestine, most nutrients have been absorbed. The water and undigested food that is left move from the small intestine into the ________.

As the material moves through the large intestine, ________ is absorbed into the bloodstream. The remaining material is readied for elimination from the body.

It takes each of your meals approximately ________ to make the journey through your entire digestive system.

Another term for the circulatory system is the:

The circulatory system links all the parts of the body.

Which of these is NOT part of the circulatory system?

Digestive is a fluid produced by cells that line the stomach. It contains the enzyme that chemically digests proteins into short chains of amino acids.

Substances (bile and enzymes) produced by these organs and the lining of the small intestine help to complete chemical digestion: and .