Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. WAEC
  4. /
  5. Biology
  6. /
  7. 2007
  8. /
  9. Q9
Question 9

Yeast is added to the dough during the preparation of bread because it produces

  • A.ethanol
  • B.heat
  • C.carbon dioxide
  • D.carbohydrate
Objective

Question details

Exam body
WAEC
Subject
Biology
Year
2007
Question no.
#9
Type
Objective
Previous · Q8The dominant stage in the life cycle of a fern is the Next · Q10 Growth includes the following processes except

More from this paper

  • Q5Respiration is an essential life process providing the living cells with
  • Q6The organelle involved in the transport of substances within a cell is
  • Q7Which of the following processes takes place when a plant cell is put in a…
  • Q11Which of the following processes is a form of sexual reproduction?
  • Q12The fine adjustment of the light microscope is used to
  • Q13Which of these statements about white blood cells is true? They
See all Biology 2007 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy