Biology Wednesday

Which process requires ATP to move molecules against their concentration gradient

• Active transport

• Diffusion

• Osmosis

• Facilitated transport

In which layer of the leaf does most photosynthesis occur

• Cuticle

• Palisade mesophyll

• Spongy mesophyll

• Epidermis

Where are chloroplasts primarily found within plant cell

• Mesophyll cells

• Nucleus

• Cytoplasm

• Vacuole

What is the primary function of chloroplast in plant cells

• Synthesizing protein

• Storing water nutrients

• Regulating cell growth

• Carrying out photosynthesis

What is the main difference between osmosis and diffusion

• Osmosis involve movement of water molecules while diffusion involve movement of solutes particles

• Osmosis requires energy while diffusion does not

• Osmosis occurs against a concentration gradient while diffusion occurs along a concentration gradient

• Osmosis is a form of active transport while diffusion is a form of passive transport

Which of the following describes a cell placed in a hypertonic solution

• It gains water and swells

• It loses water and shrinks

• It bursts

• It remains unchanged

Which organelle is primarily responsible for cellular respiration

• Mitochondria

• Golgi apparatus

• Chloroplast

• Endoplasmic reticulum

What happens to a cell placed in a hypotonic solution

• It gains water and swells

• It loses water and shrinks

• It remains unchanged

• It bursts

Which of the following structures is responsible for regulating the exchange of gases in the leaf

• Stoma

• Cuticle

• Palisade mesophyll

• Spongy mesophyll