Exam 2

Question 1

Besides shape, what else might attract the substrate to the active site?

Answer 1

By bringing substrates together

Question 2

What could make an enzyme change it’s shape and active site?

Answer 2

Hot temperatures, extreme ph, or salt concentrations

Question 3

Describe Glycolysis

Answer 3

• glycosis is the first step in the breakdown of glucose to extract energy for cell metabolism.
• it is one of the main processes of cellular respiration

Question 4

What types of cells perform glycolysis?

Answer 4

All cells

Question 5

How are the “photo” and “synthesis” reactions of photosynthesis different?

Answer 5

Photo: ATP + O2
Syn: ATP + Glucose + C02

Question 6

Where does photosynthesis take place?

Answer 6

Photosynthesis takes place in leaves, specifically in the middle layer called mesophyll. It happens in plants, algae, and cyano-bacteria. Chloroplast is found in that layer.

Question 7

What is an ecosystem?

Answer 7

An ecosystem is a community of living organisms and their abiotic (non-living) environment. In other words, their physical environment.

Question 8

What is a producer?

Answer 8

Autotrophs like plants and phytoplankton.

Question 9

What are consumers?

Answer 9

Heterotrophs, like carnivores and herbivores.

Question 10

What is omnivore?

Answer 10

An animal that eats producers and consumers at different levels

Question 11

What is potential energy?

Answer 11

Stored energy

Question 12

What is kinetic energy?

Answer 12

Energy in motion

Question 13

What do cells use to control their chemical environment?

Answer 13

Plasma membrane, enzymes, energy

Question 14

Do enzymes lower activation energy?

Answer 14

Yes

Question 15

What are the main stages of cellular respiration?

Answer 15

Glycolysis, Pyruvate processing and keep cycle, electron transport chan (ETC) via the oxidative phosphorylation.

Question 16

Where does glycolysis take place?

Answer 16

It occurs in the cytoplasm

Question 17

“Photo”?

Answer 17

Light reactions convert solar energy to chemical energy

Question 18

“Synthesis”?

Answer 18

Calvin cycle uses products of light reactions to make sugar from carbon dioxide

Question 19

For every ___ turns of the Calvin cycle, one glucose is synthesized.

Answer 19

6

Question 20

What are the inputs of photosynthesis?

Answer 20

Carbon dioxide and water

Question 21

what are the outputs of photosynthesis?

Answer 21

Sugar and oxygen

Question 22

Where does the pyruvate processing and Kreb cycle occur?

Answer 22

Mitochondrial matrix

Question 23

Where does ETC take place?

Answer 23

Inner membrane layer of the mitochondria