Human Biology - Mader - Ch. 3 Cell Structure And Function

Front 1

The maximum size of cells is _________.

Back 1

(a) unlimited - cells can be any size
(b) limited by the surface area-to-volume ratio
(c) limited only by the number of organelles it contains
(d) limited only by the size of the organism

Hint 1

(b) limited by the surface area-to-volume ratio

Front 2

A ____________ electron microscope provides a three-dimensional view of the surface of an object.

Back 2

(a) scanning
(b) compound
(c) dissecting
(d) transmission

Hint 2

(a) scanning

Front 3

The plasma membrane is _________.

Back 3

(a) impermeable
(b) totally permeable
(c) selectively permeable (semipermeable)
(d) None of these answers are correct.

Hint 3

(c) selectively permeable (semipermeable)

Front 4

What portion of the outer plasma membrane is believed to account for such characteristics such as blood type?

Back 4

(a) protein chains
(b) lipid chains
(c) carbohydrate chains
(d) both protein and lipid chains

Hint 4

(c) carbohydrate chains

Front 5

Lipid-soluble molecules pass through the plasma membrane by __________.

Back 5

(a) osmosis
(b) transport
(c) diffusion
(d) Lipid-soluble molecules do not pass through the membrane

Hint 5

(c) diffusion

Front 6

Normally, body fluids are _______ to cells.

Back 6

(a) hypertonic
(b) isotonic
(c) hypotonic
(d) atonic

Hint 6

(b) isotonic

Front 7

A protein carrier and the use of cellular energy are required in __________.

Back 7

(a) passive transport
(b) osmosis
(c) diffusion
(d) active transport

Hint 7

(d) active transport

Front 8

The semi-fluid portion of the nucleus is called ___________.

Back 8

(a) nucleoplasm
(b) endoplasm
(c) exoplasm
(d) cytoplasm

Hint 8

(a) nucleoplasm

Front 9

What tiny organelles are attached to the endoplasmic reticulum (ER), forming rough ER?

Back 9

(a) ribosomes
(b) lysosomes
(c) nucleoli
(d) mitochondria

Hint 9

(a) ribosomes

Front 10

Sometimes smooth ER specializes in the production of ______________.

Back 10

(a) testosterone
(b) starch
(c) water
(d) gas

Hint 10

(a) testosterone

Front 11

A mitochondrion has a(n) _________, an inner space filled with a gel-like fluid.

Back 11

(a) endoplasm
(b) nucleoplasm
(c) matrix
(d) stroma

Hint 11

(c) matrix

Front 12

Protein fibers called _________ are involved in cell movement.

Back 12

(a) centrioles
(b) microtubules
(c) actin filaments
(d) intermediate filaments

Hint 12

(c) actin filaments

Front 13

Before a cell divides, the centrioles ________.

Back 13

(a) stay unchanged
(b) triple in number
(c) duplicate
(d) disintegrate

Hint 13

(c) duplicate

Front 14

Cells lining the respiratory tract contain __________ that helps keep the lungs free of particles.

Back 14

(a) flagella
(b) cilia
(c) microvilli
(d) flagella and cilia

Hint 14

(b) cilia

Front 15

An enzyme's specificity is caused by the _________ of the active site.

Back 15

(a) size
(b) shape
(c) elasticity
(d) charge

Hint 15

(b) shape

Front 16

The vitamin _____ is party of the coenzyme NAD.

Back 16

(a) thymine
(b) niacin
(c) adenine
(d) lysine

Hint 16

(b) niacin

Front 17

Glycolysis occurs ___________.

Back 17

(a) in the cytoplasm, outside the mitochondrion
(b) in the matrix of a mitochondrion
(c) on the cristae of a mitochondrion
(d) in the matrix and on the cristae of a mitochondrion

Hint 17

(a) in the cytoplasm, outside the mitochondrion

Front 18

Which of these produce most of the ATP in aerobic cellular respiration?

Back 18

(a) Krebs cycle
(b) electron transport system
(c) glycolysis
(d) preparatory reactions

Hint 18

(b) electron transport system

Front 19

Fermentation, an anaerobic process, produces 2 ATP per glucose molecule where as aerobic respiration produces approximately ____________ ATP.

Back 19

(a) 2
(b) 16
(c) 36
(d) 52

Hint 19

(c) 36

Front 20

Sore muscles (cramping and fatigue) following anaerobic exercise is usually due to a buildup of __________.

Back 20

(a) carbon dioxide
(b) water
(c) lactate
(d) acetate

Hint 20

(c) lactate