Biological And Chemical Raising Agents Flashcards
What are biological raising agents?
Biological raising agents are substances that cause dough to rise through the action of living organisms, such as yeast or bacteria.
True or False: Baking powder is a biological raising agent.
False
What is the primary function of raising agents in baking?
The primary function of raising agents in baking is to produce gas that helps the dough or batter to rise.
Fill in the blank: Yeast is a type of __________ raising agent.
biological
What gas is primarily produced by yeast during fermentation?
Carbon dioxide
Which of the following is NOT a chemical raising agent? (a) Baking soda (b) Yeast (c) Baking powder
b
What is the role of baking soda in baking?
Baking soda acts as a chemical raising agent by reacting with acidic ingredients to produce carbon dioxide.
True or False: Chemical raising agents require heat to activate.
True
What is the main ingredient in baking powder?
A combination of baking soda, an acid, and a moisture-absorbing agent.
Fill in the blank: __________ is a common example of a biological raising agent.
Yeast
What type of reaction occurs when baking powder is mixed with liquid?
An acid-base reaction that produces carbon dioxide gas.
What is sourdough starter primarily made of?
Flour and water, along with naturally occurring yeast and bacteria.
True or False: Chemical raising agents can be used in gluten-free baking.
True
What is the difference between single-acting and double-acting baking powder?
Single-acting baking powder releases gas when mixed with liquid, while double-acting baking powder releases gas in two stages: once when mixed and again when heated.
Fill in the blank: __________ is a byproduct of fermentation by yeast.
Alcohol
What is the ideal temperature for yeast activation?
Between 100°F to 110°F (37°C to 43°C).
Multiple Choice: Which of the following is a biological raising agent? (a) Baking powder (b) Baking soda (c) Yeast
c
What is the effect of too much baking soda in a recipe?
It can result in a soapy taste and an overly alkaline batter.
True or False: Bread rises due to the action of gluten alone.
False
What role does acidity play in the effectiveness of baking soda?
Acidity activates baking soda to produce carbon dioxide gas.
Fill in the blank: __________ agents are often used in cakes and cookies to create a light texture.
Chemical
What is the function of cream of tartar in baking?
It acts as an acid to stabilize whipped egg whites and to activate baking soda.
Multiple Choice: Which raising agent is most commonly used in quick breads? (a) Yeast (b) Baking powder (c) Sourdough starter
b
What is the term for the fermentation process that occurs in bread making?
Proofing or rising.
True or False: Chemical raising agents can produce a more uniform rise compared to biological agents.
True
