MBI 111 Lecture Notes - Lecture 1: Golgi Apparatus, Mycelium, Cell Membrane

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27 Apr 2016

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Nucleus: key feature of euk cells. Has organelles (membrane bound structures: structures found in all euk cells. Ribosomes protein synthesis, located in er or in cytoplasm. Cell support and shape, anchoring structures, movement of cell. Phospholipid bilayer with proteins similar but not identical to bacterial membranes. 70-80% water, contains dissolved sugars, fats, proteins: structures found in most euk cells. Outermost boundary around cell, made of polysaccharides: structures found in some euk cells. Cell wall, gives protection and structure to cell. No spores produced, no true hyphae or mycelia. Hyphae shaped: long and threadlike: mycelium: hyphae large enough to see with naked eye. Fungal spores: role is multiplication, resistant to heat and dry conditions, not as long lived or resistant as endospores. Phytoplankton known as producer organism : creates half of organic matter and almost all oxygen needed to survive. Paralytic shellfish poisoning caused by red pigmented algae"s toxins inside shellfish. Some turn into dormant cyst to survive tough conditions.

Related Questions

Question 1

Light microscopes

	A.	typically provide more resolution than an electron microscope
	B.	work by reflecting electrons off the surface of an object being studied
	C.	use light and glass lenses to magnify an image

Question 2

In the plasma membrane, the phospholipid heads

	A.	are hydrophilic and face outward toward the aqueous solution on both sides of the membrane
	B.	are hydrophobic and face outward toward the aqueous solution on both sides of the membrane
	C.	are hydrophobic and face inward, shielded from water

Question 3

The nucleus of a cell

	A.	is surrounded by a single layer of membrane.
	B.	contains DNA
	C.	is the primary location of protein synthesis

Question 4

Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?

A.		endoplasmic reticulum
B		plasma membrane
C.		Cytoplasm

Question 5

The main function of the rough endoplasmic reticulum is the production of

A.		membrane and proteins secreted by the cell
B.		mitochondria and proteins secreted by the cell
C.		hydrogen peroxide

Question 6

The Golgi apparatus

A.		is the site of glucose breakdown
B.		stores, modifies, and packages proteins
C.		strings together amino acids to produce proteins

Question 7

The function of mitochondria is

		A. cellular respiration
		B. photosynthesis
		C. lipid synthesis

Question 8

Which of the following statements about the cytoskeleton is false?

		A. The cytoskeleton helps to support cell
		B. Once laid down, the elements of the cytoskeleton are fixed and remain permanently in place
	C.	The cytoskeleton is composed of three types of fibers: microfilaments, microtubules, and intermediate filaments

Question 401 pts

Kinetic energy is the stored energy that can be used for motion.

True

False

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Question 411 pts

When an electron is transferred from one atom to another, and the two atoms are then electrically attracted to one another, a(n) ________________ bond is formed.

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Question 421 pts

Changing the number of ____________ of an atom would change the chemical properties of the atom.

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Question 431 pts

Forming molecules and breaking down molecules in biological organisms usually requires the use of _________ to help the reaction proceed faster.

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Question 441 pts

Organic molecules have a core composed of .

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Question 451 pts

The building blocks of carbohydrates are

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Question 461 pts

Water molecules crossing a membrane from high to low concentration is .

active transport

cell fate

facilitated diffusion

osmosis

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Question 471 pts

Choose the membrane molecule responsible for the passage of polar molecules and ions into and out of the cell.

phospholipids

transmembrane channel proteins

cell surface proteins

carbohydrate chains

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Question 481 pts

The simplest cells are .

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Question 491 pts

Which of the following membrane bound organelles are found inside bacterial cells:

nucleus

organelles are not found in prokaryotic cells

mitochondria

chloroplasts

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Question 501 pts

Which of the following is a specialized components of the cell, is associated with the rough endoplasmic reticulum, and is responsible for making proteins.

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Question 511 pts

Proteins are sorted, modified, and packaged by the _____________ and later transported to the outside of the cell.

ribosomes

golgi bodies (golgi apparatus)

nucleus

mitochondria

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Question 521 pts

Dehydration synthesis is a process of linking two smaller subunits together to form a polymer. Which of the following statements below is true of dehydration synthesis?

Oxygen is consumed.

A water molecule is removed from the molecules.

A water molecule is added to the molecules

Carbon dioxide is given off.

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Question 531 pts

Proteins are made up of _________ held together by peptide bonds.

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Question 541 pts

Which of the following gives an amino acid its properties?

NH2

R Group or functional group

COOH

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Question 551 pts

The final three-dimensional shape of a protein that includes the bonding of two or more polypeptide chains is call its _____ structure.

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Question 561 pts

How do DNA and RNA differ?

all statements are differences between DNA and RNA.

DNA is double stranded while RNA is single stranded.

They have different sugars.

Thymine is present in DNA but not in RNA.

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Question 571 pts

Which of the following is a component of a DNA nucleotide?

phosphate

a nitrogen containing base

All are components of a nucleotide.

5-carbon sugar

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Question 581 pts

Cell membranes are made up of several different types of molecules. Select the membrane molecule below that is made up of a polar region and two non-polar fatty acid tails.

transmembrane proteins

carbohydrate chains

phospholipids

cell surface proteins

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Question 591 pts

Two organelles which are believed to have once been free-living bacterial cells are ____________ and ______________.

chloroplasts and mitochondria

golgi apparatus and endoplasmic reticulum

ribosomes and nucleolus

peroxisomes and lysosomes

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Question 601 pts

The is an extensive system of internal membranes responsible for producing carbohydrates and lipids.

smooth endoplasmic reticulum

rough endoplasmic reticulum

nucleolus

mitochondria

sangriarat617

i need help with this homwork please choose the correct answers and just be claer to read and understand for the slect the apply qusestions too and it is important i realy need the right answers so please be claer not write randomly i really need the correct answers to study for my test so hop you can help me

Question 1

What is the smallest cell you could find?

Question 2

TEMs appear as 3D images

True

False

Question 3

Bacteria are what cell type? Write one word as the answer in lowercase and using no syntax.

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Question 42 pts

ALL eukaryotic cells have which of the following. Click all that apply.

membrane enclosed cell organelles

mitochondria

Question 5

Prokaryotes and eukaryotes both have which if the following cellular components. Click all that apply.

Question 6

I am made of one 60s and one 40s subunit, which organelle am I?

protein

lipid

bacterial ribosome

Question 9

The difference between the rough and smooth ER is

the rough produces lipids where as the smooth does not

the rough has many folds and convolutions where as the smooth does not

the rough has ribosome embedded and the smooth does not

the rough is closer to the cell membrane whereas the smooth is closer to the nucleus

Question 10

The site where many lipids, including cell membrane is produced.

Question 11

Name the organelle: In muscle cells in particular, I would increase in number and size in response to frequent exercise

Question 12

In animal cells, glucose would be mobilized from its storage molecule (glycogen) in this part of the cell.

Question 13

Which of these is associated with the rough ER

production of carbohydrates

production of steroid hormones

production of ATP

production of proteins that are secreted from the cell

Question 14

Which organelle sorts, modifies and stores substances produced on the rough ER. Write two words as the answer in lower case separated by a space.

Question 15

Which organelle is responsible for ATP production. Write one word in the singular as the answer.

Question 16

You inherit all of your mitochondria from your

father

half from your mother and half from your father

your siblings

mother

Question 17

An organelle that contains chlorophyll

Question 18

Microtubules have a variety of roles, which of the options below is NOT one of them?

separate chromosomes

cilia and flagellum movement

tracks for organelle movement

constrict the cell during cell division

Question 19

Made of tubulin subunits

microfilaments

chromosomes

intermediate filaments

microtubules

Question 20

Name the part of the cytoskeleton that is made of two twisted rods of actin. Write one word as the answer in lower case.

Question 21

Which part of the cytoskeleton is made of the same protein as your hair and nails?

microfilaments

microtubules

Intermediate filaments

Question 22

The extracellular matrix is found outside of, but attached to the cell membrane?

True

False

Question 23

Which of the options below is an important function of the extra cellular matrix?

connecting cells together

regulate the movement of substances into and out of the cell

helping cells divide into two cells

keeping the cell in a fixed and ridged shape

Question 24

Which part of the cell wall has a high pectin content?

Question 25

Plants have mitochondria, chloroplasts, a cell wall, and nuclei.

True

False

Question 27

What accounts for 40% of the protein in our bodies?

Question 28

Animal cells have cell walls

True

false

MBI 111 Lecture Notes - Lecture 1: Golgi Apparatus, Mycelium, Cell Membrane

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