Ch. 5 Microbial Metabolism

What is metabolism?

• The breakdown of food only

• All chemical reactions in a cell

• Only energy-producing reactions

• Only biosynthetic reactions

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Metabolism requires the use of ______ to lower the energy needed for reactions to occur in a cell under life supporting environmental conditions.

• Enzymes

• Hormones

• Vitamins

• Minerals

Which of the following is NOT an example of microbial metabolism?

• Nitrogen cycling

• Food producing (beer/bread)

• Breakdown of sewage

• Photosynthesis in plants

Tags

NGSS.MS-LS2-3

A metabolic pathway is a ______ set of chemical reactions in a cell.

• specific

• random

• temporary

• isolated

Tags

NGSS.HS-LS2-3

Anabolism is biosynthetic and uses energy.

• True

• False

Endergonic reactions require energy to occur.

• True

• False

Which of the following is an example of an endergonic reaction?

• Fermentation

• Photosynthesis

• Anaerobic respiration

• Breakdown of sewage

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

Catabolism breaks down molecules and releases energy by breaking chemical bonds.

• True

• False

Tags

NGSS.HS-LS1-7

NGSS.HS-PS1-4

Exergonic reactions ______ energy.

• require

• release

• store

• absorb

Tags

NGSS.HS-PS1-4

What is the main function of enzymes in a living cell?

• Slow down chemical reactions

• Speed up chemical reactions (biological catalyst)

• Destroy proteins

• Produce energy