EOC Practice CELLS

How is chemosynthesis different from photosynthesis?

• Chemosynthesis does not require enzymes.

• Chemosynthesis can occur in environments without sunlight.

• Chemosynthesis does not require reactants from outside the cell.

• Chemosynthesis produces sugars that organisms use as an energy source.

Which pair of organelles works together to give structure and support in animal cells?

• cell wall and cytoplasm

• cytoskeleton and golgi apparatus

• cell membrane and cytoskeleton

• endoplasmic reticulum and cytoskeleton

Sodium (Na+) moves from and area of LOW concentration to an area of HIGH concentration through which protein?

• ATP Pump

• Plasma Membrane

• Channel Protein

• Carrier Protein

What organelle is labeled 1?

• Nucleus

• Endoplasmic Reticulum

• Mitochondria

• Chloroplast

The cell is in a solution where the concentration of solutes is higher outside the cell. Where will the water move?

• Out of the cell, into the solution

• Out of the cell, out of the solution

• Into the cell, out of the solution

• Into the cell, into the solution

How is chemosynthesis different from photosynthesis?

• Chemosynthesis requires CO2.

• Chemosynthesis is used by autotrophic organisms.

• Chemosynthesis produces energy in the form of sugars.

• Chemosynthesis harvests energy from other chemical compounds.

Which structural feature of the cell membrane allows molecules such as oxygen and carbon dioxide to diffuse into and out of the cell?

• The cell membrane contains protein molecules.

• The cell membrane contains cholesterol molecules.

• The cell membrane is made up of two layers.

• The cell membrane is anchored to the cytoplasm by the cytoskeleton.

The presence of which structure helps classify an organism as eukaryotic?

• Nucleus

• Cell Wall

• Flagellum

• Chromosome

Which type of macromolecule stores energy and provides thermal insulation for the body?

• Lipid

• Protein

• Nucleic Acid

• Carbohydrate

What are the products of anaerobic fermentation in yeast cells?

• CO2 and Lactic Acid

• Lactic Acid and H2O

• Ethanol and CO2

• Ethanol and H2O