What enzymes act inside the small intestine? The enzymes that act inside the small intestine are amylase, protease, and lipase. Amylase acts on starch and breaks it down into small carbohydrate molecules. Protease acts on proteins and breaks them down into amino acids. Lipase breaks down dietary fats into smaller molecules called fatty acids and […]
Do all plant cells have vacuoles?
Do all plant cells have vacuoles? Most mature plant cells have one large vacuole that typically occupies more than 30% of the cell’s volume, and that can occupy as much as 80% of the volume for certain cell types and conditions. Strands of cytoplasm often run through the vacuole. Do all plant cells have a […]
What food is the highest in water?
What food is the highest in water? Cucumbers are made up of around 96% water – that’s the highest water content of any food. They’re also low in calories, and a source of vitamins and fibre. Tip: Add cucumber to your salads, snack on cucumber vegetable sticks with hummus or blend cucumber with mint and […]
Why do nuclear fuel rods stay hot?
Why do nuclear fuel rods stay hot? “There comes a point when actually, the fuel becomes inefficient,” says Livens. When that happens, plant operators use control rods to turn off the fission reaction, and then they take the spent fuel out of the reactor. When the pins come out, Livens says, they are hot. What […]
How can a source be both primary and secondary?
How can a source be both primary and secondary? Primary and secondary categories are often not fixed and depend on the study or research you are undertaking. For example, newspaper editorial/opinion pieces can be both primary and secondary. If exploring how an event affected people at a certain time, this type of source would be […]
What does a subscript mean in math?
What does a subscript mean in math? A small letter or number placed slightly lower than the normal text. Examples: • the number 1 here: A1 (pronounced “A sub 1” or just “A 1”) What does a subscript tell you? Chemical formulas use letters and numbers to represent chemical species (i.e., compounds, ions). The numbers […]
How do we measure light?
What are the basic building blocks of proteins?
What are the basic building blocks of proteins? What Are Proteins Made Of? The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain (see below). […]
How do you write a letter of thank you?
How do you write a letter of thank you? What to Include in a Thank-You Letter Address the person appropriately. At the start of the letter, address the person with a proper salutation, such as “Dear Mr. Say thank you. Give (some) specifics. Say thank you again. Sign off. Send it as soon as possible. […]
What are the symptoms of a stuck valve?
What are the symptoms of a stuck valve? A stuck valveis one that no longer slides readily in its guide. A stuck valvemay refuse to open, or once open it may refuse to close. Eithersituation is quite serious. Stuck valves are usually caused by a build-up of deposits and/orcorrosion on the valve stem. How do […]