Unit 3 Test Review

The cell theory states that all organisms are made of cells, cells are the most basic unit of life and  (SC.912.L.14.1)

• all existing cells form by free-cell formation

• all cells are produced by other living cells

• all cells are eukaryotic

• all cells have a nucleus

Tags

NGSS.HS-LS1-4

The movement of molecules without the use of energy (SC.912.L.14.2)

• passive transport

• ATP

• active transport

• cell movement

What gives shape and structure to a plant cell and is primarily made up of cellulose? (SC.912.L.14.2)

• cytoskeleton

• cell membrane

• cell wall

• flagella

This layer consists of a double layer of phospholipids interspersed with a variety of other molecules (SC.912.L.14.2)

• Cell Membrane

• Cell Wall

• Cytoskeleton

• Concentration gradient

Which of the following examples illustrates osmosis? (SC.912.L.14.2)

• water leaves the tubules of the kidney in response to the hypertonic fluid surrounding the tubules

• digestive enzymes are excreted into the small intestine

• white blood cells consume pathogens and cell debris at the site of infection

• calcium is pumped inside a muscle cell after the muscle completes its contraction

A cell transports material through the cell membrane either passively or with the use of energy.  Which cellular process demonstrates the movement of materials that requires a source of energy? (SC.912.L.14.2)

• Carrier proteins move molecules through the cell membrane to an area of higher concentration inside the cell

• Water moves through the channels in the cell membrane to an area of lower concentration outside the cell

• Particles move through the cell membrane to an area of lower concentration inside the cell

• Water moves through the cell membrane to the inside of the cell

Which of the following is a network of proteins that supports and gives shape to the cell? (SC.912.L.14.2)

• cytoplasm

• cell membrane

• vacuole

• microfilaments and microtubules

In a cell's environment, materials move in and out of a cell.  Which process is an example of active transport? (SC.912.L.14.2)

• Glucose molecules in the bloodstream move through proteins in the cell membrane going from a high to low concentration

• Potassium ions move across a cell membrane to the side of higher concentration

• Dissolved carbon dioxide gas from mitochondria diffuses evenly throughout a cell

• Water moves from high concentration inside the cell into the fluid outside the cell

The function of the amino acids is to build ________. (SC.912.L.14.2)

• glucose

• proteins

• lipids

• nucleic acids

Tags

NGSS.HS-LS1-1

What are the main differences between plant and animal cells? (SC.912.L.14.3)

• animal cells are eukaryotes and plant cells are not

• plant cells are eukaryotes and animal cells are not

• animal cells have cell walls and chloroplasts; plant cells do not

• plant cells have cell walls and chloroplasts; animal cells do not