Unit 2 - Cell Structures & Functions

Question 1

An image produced by a microscope is called a ____________.

Accepted Answer

micrograph

Question 2

The final electron acceptor in cellular respiration is ______________.

Accepted Answer

oxygen

Question 3

Identify the three (3) products of cellular respiration.

Accepted Answer

carbon dioxide, water, ATP

Question 4

When cells break down food molecules, most of the energy is _______________.

Accepted Answer

temporarily stored in ATP molecules

Question 5

Movement of a substance against its concentration gradient using energy is called ________ transport.

Accepted Answer

active

Question 6

Where do the oxygen atoms that are formed into a gas during photosynthesis come from?

Accepted Answer

water

Question 7

A(n) ____________ is a structure that performs a specific function within a eukaryotic cell

Accepted Answer

organelle

Question 8

Movement across the cell membrane that does not require energy from the cell is called _________ transport.

Accepted Answer

passive

Question 9

An example of an "electron acceptor" that functions in glycolysis is ______________.

Accepted Answer

NAD+

Question 10

What type of molecule, when lined up into a bilayer, forms the membrane of a cell?

Accepted Answer

phospholipid

Question 11

A protein that fits into the cell membrane has __________________.

Accepted Answer

all are correct

Question 12

Which of the following is an example of a prokaryote?

Accepted Answer

bacterial cell

Question 13

A(n) ___________ solution will cause a cell to swell because water will move into the cell.

Accepted Answer

hypotonic

Question 14

Identify the two (2) products of photosynthesis.

Accepted Answer

sugar, oxygen

Question 15

The nucleus of a cell houses and protects the _______.

Accepted Answer

DNA

Question 16

As light intensity increases, the rate of photosynthesis _________________.

Accepted Answer

increases until the light saturation point is reached

Question 17

The movement of a substance from an area of high concentration to an area of low concentration is called _________.

Accepted Answer

diffusion

Question 18

Plant cells have a _______, which resides outside of the cell membrane and provides structural support for the organism.

Accepted Answer

cell wall

Question 19

Almost all the energy used by life on Earth comes from ___________.

Accepted Answer

the sun

Question 20

When cells break down food molecules, some of the energy is __________________.

Accepted Answer

released as heat into the surrounding environment

Question 21

When a phosphate group is removed from ATP, _________________.

Accepted Answer

a substantial amount of energy is released

Question 22

Resolution is when an object looks __________ through a microscope.

Accepted Answer

Clearer

Question 23

Ribosomes, made of rRNA, are essential to the production of __________.

Accepted Answer

proteins

Question 24

________________ is the process that takes place when organic compounds are broken down in the absence of oxygen.

Accepted Answer

fermentation

Question 25

Which of the following is NOT found in prokaryotes?

Accepted Answer

membrane-bound organelles

Question 26

A(n) __________ solution will have no effect on cell size, as water will move into and out of the cell at equal rates.

Accepted Answer

isotonic

Question 27

What types of proteins have polar passageways which allow for specific molecules to pass through the cell membrane?

Accepted Answer

ion channels, channel proteins

Question 28

The _________ interior of the cell membrane repels ions and most polar molecules.

Accepted Answer

nonpolar, hydrophobic

Question 29

Where do the Krebs Cycle and the Electron Transport Chain occur in cellular respiration?

Accepted Answer

mitochondria

Question 30

Identify the two (2) reagents of cellular respiration.

Accepted Answer

oxygen, sugars

Question 31

The metric system is based on a power of _____.

Accepted Answer

10

Question 32

The most powerful light microscope can magnify an image up to ________ times its normal size.

Accepted Answer

2000

Question 33

The lack of a _________ distinguishes a prokaryote from a eukaryote.

Accepted Answer

nucleus

Question 34

The golgi apparatus is involved in __________________.

Accepted Answer

all are correct

Question 35

Only eukaryotic cells can replicate.

Accepted Answer

False

Question 36

Channel proteins found in the thylakoid membranes are directly responsible for _______________.

Accepted Answer

providing the energy to produce ATP molecules

Question 37

_____________ is the movement of a substance into the cell using vesicles.

Accepted Answer

endocytosis

Question 38

Able to conduct cellular respiration, the ____________ is the "powerhouse of the cell."

Accepted Answer

mitochondria

Question 39

________________ contain enzymes which help to break down substances in the cell for use in other cell processes.

Accepted Answer

lysosomes

Question 40

_____________ is the movement of a substance out of the cell using vesicles.

Accepted Answer

exocytosis

Question 41

The ___________ is the organelle responsible for photosynthesis.

Accepted Answer

chloroplast

Question 42

To move packaged products from place to place, the golgi apparatus releases ________ containing the newly-made products.

Accepted Answer

vesicles

Question 43

Identify the three (3) reagents of photosynthesis.

Accepted Answer

water, sunlight, carbon dioxide

Question 44

A(n) ___________ solution will cause a cell to shrink because water will move out of the cell.

Accepted Answer

hypertonic

Question 45

Calculate the total magnification for a microscope with a 20x ocular lens and a 10x objective lens.

Accepted Answer

200

Unit 2 - Cell Structures & Functions

Questions 45

Unit 2 - Cell Structures & Functions

Questions 45