BIOL 103 Chapter 3: Structure and Function of Cells

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7 Aug 2016

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Cell doctrine: all living things are composed of cells and cell products, a single cell is the smallest unit that exhibits all the characteristics of life, all cells come only from preexisting cells. 3. 1: cells are classified according to their internal organization. All cells are surrounded by an outer membrane called the plasma membrane: plasma membrane encloses the material inside of the cell, which is mostly water, ions, b. and enzymes. Think the plasma membrane as the front door of a house: only a certain amount of things are welcomed inside. Eukaryotes: plasma membrane, a nucleus ( core ) or information center . Think the nucleus as the owner of the house: cytoplasm ( cell material ) that includes everything inside the cell except the nucleus. This cell material is composed of cytosol and cytosol contains organelles that carry out specialized functions.

Related Questions

1,Match the descriptions to the type of transport.

- A. B. C.	Water enters a cell because it is hypertonic compared to the extracellular environment, increasing its turgor pressure
- A. B. C.	Water enters guard cells because the guard cells are hypertonic compared to the surrounding cells
- A. B. C.	Potassium ions are pumped into guard cells
- A. B. C.	The motor cells of a Venus fly trap are hypotonic compared to surrounding cells, causing water to leave the motor cells
- A. B. C.	Sugar is loaded into the phloem

A.	Both active and passive transport
B.	Passive Transport
C.	Active transport

2,Describe what is wrong with the following statement and explain why:

All prokaryotic and eukaryotic cells contain plasma membrane, nucleus, ribosomes, organelles, cytoplasm, and cell walls.

What is short-distance transport?

	a,	The movement of solutes from a region of low concentration to a region of high concentration
		b,The movement of water, nutrients, and other substances between cells
c,		The movement of substances from a region of high concentration to a region of low concentration
d,		The movement of water across a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.

What terms describe the movement of water across a semipermeable membrane from a region of high water concentration towards a region of low water concentration (and high solute concentration.)

What is found in the proptoplasm?

Cell wall, cytoplasm, plasma membrane, nucleus, and other cell organelles

Plasmodesmata, cell wall, and plasma membrane

Cell wall, cytoplasm, and plasma membrane

Cytoplasm, nucleus, and other cell organelles

The channels that allow nutrients and protoplasm to pass between plant cells are called _________________.

What happens when a plant cell is placed in a hypotonic solution?

Water will enter the plant cell and the plasma membrane will swell and cell lysis will occur

Water will leave the plant cell and the plasma membrane will pull away from the cell and plasmolysis will occur

Water will enter the plant cell and the plasma membrane will swell and push against the cell wall

Water will leave the plant cell and the plant cell will lose turgor pressure, causing the plant to wilt

________________ transport uses cellular energy.

What molecules make plasma cell membranes hydrophilic on the outside and hydrophobic on the inside?

What type of cells do plants have?

		Bacterial
		Archaeic
		Eukaryotic
		Prokaryotic

Place the following in order from most complex to least complex

A- Cell B- Hydrogen C- Water D- Protons

31. C

32. B

33. A

34. D

Match the cell type with the most appropriate description or phrase

A- Prokaryotic B- Eukaryotic C- Both

36. Is the cell type that builds multicellular organism in Fungal, Plant, and Animal Kingdom.

B- Eukaryotic

37. Bacteria is an example of this cell type.

A- Prokaryotic

38. Contain Cytoplasmâs and cell membranes

B- Eukaryotic

39. Contain Membrane- bound organelles

C- Both

True or False

40. All cells contain a cell membrane, cytoplasm, and a nucleus.

False

41. According to the Cell Theory, all living things are composed of cells.

True

42. According to the Cell Theory, all living things use DNA as the genetic information molecule.

True

Please match the following:

Nucleus, cytoplasm, plasma membrane, ribosome, rough endoplasmicreticulum, smooth endoplasmic reticulum, golgi apparatus, vesicles,lysosomes, central vacuole, mitochondrion, chloroplast, cell wall,cytoskeleton, gap junction, tight junction, plasmodesmata

A. Structure between cells that forms leak proof sheet
B. Stacks of membrane sacs that receive and modify protein productscoming from the rER
C. Fluid-Filled space between the plasma membrane and the nuclearmembrane where organelles are suspended
D. Supports cell, maintains cell shape, acts as tracks fororganelle movement
E. Cellular respiration, bulk of ATP production
F. Outer border of plant cells
G. Storage, digestion, maintains, turgor pressure in plants
H. Genetic control center, directs cellular activites
I. Selective barrier of all cells
J. Converts solar energy to chemical energy
K. Structure that allows substances to flow from one cell toanother cell
L. protein factory
M. digestive compartment in animal cells
N. synthesis, modification, and packaging of proteins
O. transport shuttle buses
P. stacks of tubules where carbohydrate and lipid areproduced
Q. Channels connecting neighboring plant cells

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BIOL 103 Chapter 3: Structure and Function of Cells

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