Chapter 3 The Cellular Level Of Organization

Question 1

The nuclear division that maintains the same number of chromosomes and is part of somatic cell division is called?

Answer 1

Mitosis

Question 2

The part of the cell cycle during which the cell grows and replicates its DNA is called the?

Answer 2

Interphase

Question 3

The term for regulated, genetically programmed cell death is?

Answer 3

Apoptosis

Question 4

The term for pathological cell death that results from cell injury

Answer 4

Necrosis

Question 5

Living structural and functional unit enclosed by a membrane

Answer 5

A cell

Question 6

The site of protein synthesis in the cell is the?

Answer 6

Ribosome

Question 7

Pleural cavity, pericardial cavity, mediastinum are all located and part of the ________ cavity

Answer 7

Thoracic

Question 8

Thin flexible barrier around a cell: regulates what enters and leaves the cell

Answer 8

Cell membrane

Question 9

The network of membranous cisterns studded with ribosomes; processing and sorting of secretory and membrane proteins

Answer 9

Rough endoplasmic reticulum

Question 10

Longer projections that move the whole cell (tail of the sperm) are?

Answer 10

Flagella

Question 11

The next work of membranous cisterns involved in lipid metabolism and detoxification of some drugs is the?

Answer 11

Smooth ER (endoplasmic reticulum)

Question 12

Which organelle contains 40 kinds of powerful digestive enzymes?

Answer 12

Lysosomes

Question 13

Extensions that move along the cell surfaces are?

Answer 13

Cilia

Question 14

The most basic, living and structural unit of the body is the?

Answer 14

Cell

Question 15

The cell membrane is selectively permeable, T OR F?

Answer 15

True

Question 16

Substances move passively from one side of the cell membrane to the other by a concentration gradient; substances therefore move from ______ to _______.

Answer 16

High to low

Question 17

The ________ is the powerhouse of the cell

Answer 17

Mitochondrion

Question 18

What is necessary to move substances from an area of low concentration to an area of high concentration?

Answer 18

ATP

Question 19

Ribosomes make?

Answer 19

Proteins

Question 20

What organelle assists in mitosis?

Answer 20

Centrosomes

Question 21

What will happen to a red blood cell is a hypertonic solution?

Answer 21

Crenation

Question 22

If a cell has the ability to eat bacteria or other material it is known as a?

Answer 22

Phagocyte

Question 23

Mitosis is when the body makes an exact copy of a cell. Ex.skin cells. T OR F?

Answer 23

True

Question 24

Genes are dispersed in form of ________ in non dividing cells

Answer 24

Chromatin

Question 25

Genes are condensed in form of _______ in DIVIDING cells

Answer 25

Chromosomes

Question 26

The control centre of the cell is the?

Answer 26

Nucleus

Question 27

A double membrane that surrounds the nucleus of the cell

Answer 27

Nuclear envelope

Question 28

A set of microtubles

Answer 28

Centriole

Question 29

Also called the breakdown bodies or suicide sack due to their ability to digest molecules, pathogens, or the cell itself

Answer 29

Lysosome

Question 30

The 2 types of cell division are?

Answer 30

Reproductive and somatic

Question 31

This process of cell division, consists of a special two step division called MEIOSIS, in which the number of chromosomes in the nucleus are reduced by half.

Answer 31

Reproductive

Question 32

This process of cell division is when the cell cycle consists of two major periods-INTERPHASE when a cell is NOT dividing, and MITOTIC PHASD, when a cell is dividing- what type of cell division is this?

Answer 32

Somatic

Question 33

During ________ , the cell grows and replicates its DNA

Answer 33

Interphase

Question 34

During _____ _______, two identical cells form, this consists of MITOSIS.

Answer 34

MITOTIC phase

Question 35

_________ includes the distribution of two sets of chromosomes into two separate nuclei, this nuclear division maintains the same number of chromosomes

Answer 35

Mitosis

Question 36

The cell has 3 parts

Answer 36

Plasma membrane, cytoplasm, nucleus

Question 37

A type of diffusion in which there is NET MOVEMENT of a solvent through a selectively permeable membrane

Answer 37

Osmosis

Question 38

A measure of osmotic pressure gradient of two solutions separated by selectively permeable membrane.

Answer 38

Tonicity

Question 39

In a hypotonic solution the rupture of a cell is called

Answer 39

Lysis

Question 40

In a hypertonic solution the rupture of a cell is called

Answer 40

Crenation

Question 41

Water moves by osmosis across a plasma membrane from an area of _______ solute to an area of ______ solute concentration

Answer 41

Lower | Higher

Question 42

A Passive process in which the random mixing of particles in a solution occurs because of the particles kinetic energy

Answer 42

Diffusion

Question 43

Cytoplasm consists of what two components

Answer 43

Cytosol and organelles