Ch3b: Organelles, Cell Cycle, DNA and Protein Synthesis

Question 1

What plays a role in synthesis of steroid based hormones and proteins?

Answer 1

endoplasmic reticulum

Question 2

What is the actual site of protein synthesis

Answer 2

ribosomes

Question 3

What is a hollow cytoskeletal element that acts as organizer for cytoskeleton?

Answer 3

microtubules

Question 4

What are dense spherical bodies in the nucleus that are synthesis site for ribosomal RNA

Answer 4

Nucleoli

Question 5

What houses DNA and RNA

Answer 5

nucleus

Question 6

T/F: each daughter cell resulting from mitotic cell division has exactly as many chromosomes as parent cell?

Answer 6

T

Question 7

T/F: Final prep for cell division is made during the cell life cycle subphase called G2

Answer 7

T

Question 8

T/F: The orderly sequence of the phases of mitosis, is prophase, metaphase, anaphase, and telophase?

Answer 8

T

Question 9

T/F: Microfilaments are thin strands of contractile protein myosin?

Answer 9

F

Question 10

T/F: Interstitial fluid represents one type of extracellular material

Answer 10

T

Question 11

T/F: Most organelles are bounded by a membrane that is quite different in structure from the lipid bilayer of the plasma membrane

Answer 11

F

Question 12

T/F: Only one cell type in the human body has flagellum

Answer 12

T

Question 13

T/F: Microtubules are hollow tubes made of subunits

Answer 13

T

Question 14

In certain kinds of muscle cells, calcium ions are stored in?

Answer 14

smooth ER

Question 15

Which of the following is not a function of the smooth endoplasmic reticulum?

Answer 15

protein synthesis in conjunction with ribosomes

Question 16

Mitochondria “ “

Answer 16

contain some of DNA and RNA code necessary for own function

Question 17

Ribosomes, ER, and golgi apparatus functionally act in sequence to synth proteins for excretory use, never for cell. This statement is “ “

Answer 17

false; integral cell membrane proteins are also synthesizes this way

Question 18

Peroxisomes are “ “

Answer 18

able to detox substances by enzymatic action

Question 19

Which of the following is not function of lysosomes?

Answer 19

forming acid hydrolases which are necessary for forming cell membrane

Question 20

one component within the cell consists of triplets of microtubules arranged to form a hollow tube. What is the structure?

Answer 20

centriole

Question 21

What is mitosis?

Answer 21

division

Question 22

The RNA responsible for bringing the amino acids to the ribosome for protein formation is?

Answer 22

tRNA

Question 23

Which of the following statements is correct regarding RNA?

Answer 23

messenger RNA, transfer RNA, ribosomal RNA

Question 24

what matches ACGTT?

Answer 24

UGCAA

Question 25

Which statement is most correct regarding transcription/translation?

Answer 25

the nucleotide sequence in a tRNA anticodon is an exact copt of the DNA triplet that coded for it

Question 26

A gene can best be defined as ?

Answer 26

an RNA messenger that codes for a particular polypeptide

Question 27

If a tRNA had an AGC anticodon, it could attach to a mRNA codon

Question 28

” “ is the division of cytoplasmic mass into two parts

Answer 28

cytokinesis

Question 29

The metabolic or growth phase of a cell life cycle is called?

Answer 29

interphase

Question 30

In order for DNA molecule to get short and fat to become chromosome, it must first wrap around molecules called?

Answer 30

histones

Question 31

” “ are hollow tubes made of spherical protein subunits

Answer 31

microtubules

Question 32

aerobic cellular respiration occurs in the “ “

Answer 32

mitochondria

Question 33

the RNA that has an anticodon and attaches to a specific amino acid is?

Answer 33

transfer

Question 34

Describe two important functions of the golgi apparatus

Answer 34

modify, sort, and package proteins