Cell Structure and Function

Question 0

Basic function of nucleus:

Answer 0

Contains DNA molecules and Nucleolus

Question 1

Basic function of plasma membrane:

Answer 1

Controls movement of substances into and out of the cell

Question 2

Basic function of centrioles:

Answer 2

A.k.a. Cenrosomes. Form mitotic spindle, needed to form cilia and flagella

Question 3

Basic function of chromatin:

Answer 3

Long thin strands within nucleus. Each strand composed of one DNA molecule and associated proteins.

Question 4

Basic function of cytoplasm:

Answer 4

Area of the cell that includes the cytosol and organelles

Question 5

Basic function of cytosol:

Answer 5

Fluid portion of the cytoplasm that surrounds organelles

Question 6

Basic function of organelles:

Answer 6

Varies. Organelles are everything in the cytoplasm except the nucleus and the cytosol.

Question 7

Basic function of mitochondria:

Answer 7

Makes ATP via aerobic cellular respiration

Question 8

Basic function of nucleolus:

Answer 8

Assembly site for ribosomes

Question 9

Basic function of ribosomes:

Answer 9

Site of protein synthesis

Question 10

Basic function of lysosomes

Answer 10

Enzymes digest and recycle worn out organelles and substances entering the cell ( can digest the cell)

Question 11

Basic function of cytoskeleton:

Answer 11

Three kinds of protein filaments, maintain cell shape and involved in cell movement and movement of organelles

Question 12

Basic function of cilia:

Answer 12

Abundant, hair-like cell projections that move fluids and particles along the cell surface

Question 13

Basic functions of flagella:

Answer 13

Long cell projections; whip-like motion moves sperm

Question 14

Define Term: interphase

Answer 14

When the cell is not dividing, but carrying out its normal activities

Question 15

Define term: mitotic phase

Answer 15

When the cell is engaged in cell division

Question 16

Define term: Mitosis

Answer 16

The process of cell division, specially, the nucleus dividing into two

Question 17

Define Term: cytokinesis

Answer 17

The process by which the cytoplasm is split into two new cells to complete cell division

Question 18

Define Term: prophase

Answer 18

Nucleolus and nuclear membrane disappear, chromatin condenses into chromosomes, centrioles move to opposite poles, spindle fibers form. STAGE 1.

Question 19

Define Term: Metaphase

Answer 19

Chromosomes line us at metaphasal plate, spindle fibers attach to centromeres of chromatids. STAGE 2.

Question 20

Define Term: Anaphase

Answer 20

Chromatids of chromosomes separate, move to opposite poles. STAGE 3.

Question 21

Define Term: Telophase

Answer 21

Cell reverse prophase activities. FINAL STAGE.

Question 22

Find: Mitochondrion

Answer 22

1

Question 23

Find: Peroxisome

Answer 23

2

Question 24

Find: Smooth Endoplasmic Reticulum

Answer 24

#3

Question 25

Find: Lysosome

Answer 25

#4

Question 26

Find: Plasma Membrane

Answer 26

#5

Question 27

Find: Centrioles

Answer 27

#6

Question 28

Find: Microvillus

Answer 28

#7

Question 29

Find: Flagellum

Answer 29

#8

Question 30

Find: Cilium

Answer 30

#9

Question 31

Find: Secretory Vesicle

Answer 31

#10

Question 32

Find: Chromatin

Answer 32

#11

Question 33

Find: Nuclear Membrane

Answer 33

#12

Question 34

Find: Nucleolus

Answer 34

#13

Question 35

Find: Nucleus

Answer 35

#14

Question 36

Find: Cytoplasm

Answer 36

#15

Question 37

Find: Rough Endoplasmic Reticulum

Answer 37

#16

Question 38

Find: Ribosome

Answer 38

#17

Question 39

Find: Golgi Complex

Answer 39

#18

Question 40

Define the phase of cell division

Answer 40

Telophase (also cytokinesis). Nuclear envelopes and nucleoli reappear; chromosomes resume chromatin form; mitotic spindle disappears.

Question 41

Define the phase of cell division

Answer 41

Metaphase. Centromeres of chromatid pairs line up at metaphase plate.

Question 42

Define the phase of cell division

Answer 42

Anaphase. Centromeres split; identical sets of chromosomes move to opposite poles of cell.

Question 43

Define the phase of cell division

Answer 43

Prophase. Chromatin fibers condense into paired chromatids; nucleolus and nuclear envelope disappear; each centrosome moves to an opposite pole of the cell.

Question 44

Define the phase of cell division

Answer 44

Interphase. Period between cell divisions; chromosomes not visible under light microscope.

Question 45

What is the order of phases in Mitosis?

Answer 45

1. Interphase -- pre-mitotis. 2. Prophase 3. Metaphase 4. Anaphase 5. Telophase