Ch 3

Select all the choices that correctly describe the Golgi Apparatus of the cell 1) Proteins are modified by this organelle and repackaged into transport vesicles 2) This organelle is part of the endomembrane system 3) Toxins in the cell are inactivated by this organelle 4) Aerobic respiration is carried out by this organelle, which produces ATP

1) Proteins are modified by this organelle and repackaged into transport vesicles 2) This organelle is part of the endomembrane system

Which traits are representative of the Mitochondria? 1) breaks down sugar for energy 2)found in cells of plants 3) filled with thylakoid stacks 4) contains folded inner membrane 5) has its own genetic material 6) occur in animal cells

1) breaks down sugar for energy 2)found in cells of plants 4) contains folded inner membrane 5) has its own genetic material 6) occur in animal cells

Which traits are representative of the Chloroplasts? 1) contains folded inner membrane 2) filled with thylakoid stacks 3) found in cells of plants 4) has its own genetic material

1) contains folded inner membrane 3) found in cells of plants 4) has its own genetic material

Classify which statements are characteristic of the smooth ER. 1) A major function if the manufacture of proteins 2)It stores calcium ions 3) A major function is lipid synthesis 4) It forms vesicles that travel to other parts of the cell 5) ITs surfaces that faces the cytoplasm that lacks ribosomes 6) It stores calcium ions

2)It stores calcium ions 3) A major function is lipid synthesis 4) It forms vesicles that travel to other parts of the cell 5) ITs surfaces that faces the cytoplasm that lacks ribosomes 6) It stores calcium ions

A family goes on vacation and returns home to find all their houseplants have wilted. At a cellular level, what is causing the plants to wilt? 1. The vacuole is no longer providing nourishment for the cell 2. The cell does not have water pressure for support 3. The vacuole has no water in it, weakening the cell 4. Without water, the vacuole cannot transport nutrients around the cell

2. The cell does not have water pressure for support 3. The vacuole has no water in it, weakening the cell

Which of these statements correctly describes vacuoles? 1) Synthesizes enzymes 2) Acts as an air bubble in the cell 3) Has little or no internal structure 4) Membrane-bound organelle 5) In animals, can transport wastes

3) Has little or no internal structure 4) Membrane-bound organelle 5) In animals, can transport wastes

Select the descriptions that apply to the ribosome. 1) a membrane complex which produces secretory vesicles 2) a membrane-bound organelle that stores digestive enzymes 3) a cellular structure that is composed of both RNA and protein 4) a molecular structure that is the site of synthesis 5) a membranous network associated with protein production

3) a cellular structure that is composed of both RNA and protein 4) a molecular structure that is the site of synthesis

Which cellular component is a membrane-bound organelle that digests nutrients and cellular waste? A) lysosome B) rough endoplasmic reticulum C)nucleus D) mitochondrion

A) lysosome

Nearly all eukaryotic cells contain a class of small, round organelles that contain oxidative enzymes. The enzyme break down organic substances via oxidation reactions. What are the organelles called? A) peroxisomes B) ribosomes C) mitochondria D) lysosomes

A) peroxisomes

Which of these is a function of cholesterol in a cell's plasma membrane? A) regulating membrane fluidity B) helping in photosynthesis C) Storing water D) helping in respiration

A) regulating membrane fluidity

Of these, which solution could be in the beaker that contains the hypotonic solution? A) 4% (m/v) NaCl solution B) 0.05% (m/v) NaCl solution C) 0.92% (m/v) NaCl solution

B) 0.05% (m/v) NaCl solution

Which eukaryotic cell parts is found in the cytoplasm, provides structure and support the cell and is composed of interconnected protein fibers? A) plasma membrane B) cytoskeleton C) ribosome D) chromatin

B) cytoskeleton

Which organelle has a smooth outer membrane, an extensively folder inner membrane, and is the site of ATP production in eukaryotic cells? A) rough endoplasmic reticulum B) mitochondrion C) nucleus D) lysosome

B) mitochondrion

The genome of an organism is the complete set o DNA that includes all of the organism's genes. Where is the genomic DNA stored in a prokaryotic cell? A) Chloroplast B) nucleoid C) nucleus D) flagellum

B) nucleoid

Which choice describes diffusion? A) The movement of a substance across a cell membrane from an area of low concentration to an area of high concentration, up its concentration gradient. B) The movement of a substance down its concentration gradient from a region where it less concentrated to an area where it is more concentrated C) The movement of a substance down a concentration gradient from an area of high concentration to an area of low concentration D) The movement of a substance up its concentration gradient using ATP and transport proteins across a cell membrane

C) The movement of a substance down a concentration gradient from an area of high concentration to an area of low concentration

Which of these is an organelle, is characterized by stacked, disc shaped structures, and converts energy from the sun into usable sugars for plants? A) Mitochondrion B) Chlorophyll C) Ribosome D) Chloroplast

D) Chloroplast

Plasma membranes are selectively permeable, or semipermeable, meaning that...? A) The membrane allows only water, but not solutes, to enter and leave the cell. B) The membrane allows substances to enter and leave the cell. C) The membrane allows substances to enter the cell but not to exit. D) The membrane permits the transport of only certain substances.

D) The membrane permits the transport of only certain substances.

Which two microscopes can display living samples?

Dissecting microscope and Compound microscope

Which two microscopes can observe thicker samples?

Dissecting microscope and Electron microscope

What microscope can display very high-resolution images?

Electron microscope

A solution that has a higher concentration of molecules; the cell has a lower concentration of molecules; water moves out of cell into solution in an effort to equalize the two areas; cell shrinks

hypertonic solution

A solution that has a lower concentration of molecules; cell has a higher concentration of molecules; water moves in, possibly to the point of bursting the cell

hypotonic solution

A solution where some water movement in and some water movement out, but the overall effect is no change

isotonic solution

How would you describe bulk transport?

movement of contents of transport vesicles out of the cell by exocytosis

How would you describe active transport?

the movement of solutes out of the cell against their concentration gradient using membrane proteins

How would you describe simple diffusion?

the movement of solutes out of the cell directly through the plasma membrane

How would you describe facilitated diffusion?

the movement of solutes out of the cell down their concentration gradient using membrane proteins