Unit 2 Review - Spring 21

Which of the following describes homeostasis?

• keeps variables exactly at the set point

• organism's ability to maintain steady (stable) internal conditions

• acts to keep values outside of a desired range

• operates through positive feedback

Osmosis it the diffusion of __________.

• water

• glucose

• air

• passive transport

Passive transport requires ATP energy.

• True

• False

Active Transport moves against/up the concentration gradient which requires ATP energy.

• True

• False

____________ & _________________ are organelles that definitely arose from endosymbiosis.

• Rough ER & Smooth ER

• Mitochondria & Flagellum

• Chloroplast & Mitochondria

• Chloroplast and Golgi apparatus

Bacteria are prokaryotes which means they

• have a nucleus on their capsule

• do not contain a nucleus

• can live in environments with and without oxygen

Which clade of organisms do not have a cell wall?

• plants

• fungi

• bacteria

• animals

Which of the following best describes photosynthesis?

• Photosynthesis converts radiant energy into chemical energy.

• Photosynthesis produces carbohydrates.

• Plants need sunlight, carbon dioxide, water, nutrients, and chlorophyll to complete photosynthesis.

• Plants use chlorophyll, water, and carbon dioxide to make sugar.

Cellular respiration is...

• the process by which cells break down glucose into energy.

• the process by which cells break light down into energy.

• the process by which cells communicate with other cells.

What is the equation for photosynthesis?

• O2+ H2O → C6H12O6 + CO2

• CO2+ Light → C6H12O6 + O2

• CO2+ H2O+ light → C6H12O6 + O2