BIOB10H3 Lecture : BIOB10 Lecture 1.docx

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orangeantelope630

15 Apr 2012

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Differentiation: making diff cells that have diff functions. >proteins carry out the functions in the cell, provide structure and building the other macromolecules. Robert hooke coined the term cell , examining cork. Leeuwenhoek took pond water and put it in his microscope and saw animicules , the pond water organisms. Cells need to metabolize to stay healthy, have capacity to get energy and use it. >energy ultimately comes from the sun. via photosynthesis and respiration (use the carbs built in photosynthesis to make atp) Need atp to carry out metabolisms, biochemical reactions,. Cells engage in mechanical activities: intracellular transport (in the cell) In development you have rapid cell division, get a ball of cells. During cell differentiation, cells on the outside get different cues then the inside. Cell migration is common during development, stay put when you get older. Cells have to be able to respond to stimuli via surface receptors (proteins)

Related Questions

1. Based on what you have learned about glycolysis, which kindof poison would most likely directly interfere with glycolysis?

	A poison that binds to pyruvate and inactivates it.
	A poison that blocks the passage of electrons along the electrontransport chain.
	A poison that closely mimics the structure of glucose but is notmetabolized.
	A poison that reacts with oxygen and depletes its concentrationin the cell.

2. Plant cells produce one molecule of O₂ ____.

	during cellular respiration.
	by breaking down glucose.
	by splitting two molecules of water.
	by splitting carbon dioxide.

3. In photosynthetic cells, synthesis of ATP by the chemiosmoticmechanism occurs during _________.

	photosynthesis only.
	respiration only.
	both photosynthesis and respiration.
	neither photosynthesis nor respiration.

ochresalmon204

The complete set of reactions carried out by an organism is called:

a. anabolism

b. catabolism

c. metabolism

Value: 2

The breakdown of starch is broken down to glucose is an example of:

a. anabolism

b. catabolism

c. metabolism

Value: 3

For the following statement, determine which description best describes the process: DNA is synthesized from free nucleotides.

a. anabolism

b. catabolism

c. metabolism

Value: 4

Fill in the blank: Catabolic reactions result in the synthesis of molecules of .............via cellular respiration. This is then used to power anabolic reactions.

Value: 5

The energy in organic molecules is released in a series of steps because:

a. it is not possible to release it in a single step.

b. more total energy is released in multiple steps than would be released in a single step

c. less total energy is released in multiple steps than would be released in a single step.

d. more energy can be harvested for cellular use in multiple steps than from a single step.

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

photosynthesis

1-The light reaction of photosynthesis does not include

a. chemiosmosis

b. oxygen liberation

c. glucose synthesis

d. electron transport

Value: 2

Photosynthesis takes place in the membranes of small sacs called

a. thylakoids

b. photosystems

c. stroma

d. photons

Value: 3

During what stage of photosynthesis is O2 produced?

a. the light-dependent reactions involving photosystems I and II

b. carbon fixation

c. the Krebs cycle

d. O2 is not produced during photosynthesis

Value: 4

The pigment molecules responsible for photosynthesis are located in the

a. mitochondria

b. cytoplasm of the cell

c. stroma of the chloroplast

d. thylakoid membrane of the chloroplast

Value: 5

During what stage of photosynthesis are ATP and NADPH converted to ADP + Pi and NADP+?

a. the light-dependent reactions

b. the light-independent reactions

c. both of the above

d. none of the above

Value: 6

What energy-rich organic compound is produced as a result of the Calvin cycle?

a. ATP

b. NADPH

c. glucose

d. H2O

Value: 7

During photosynthesis, photons raise electrons to higher energy levels. These excited electrons belong to what compound?

a. water

b. ATP

c. chlorophyll

d. electron transport chain

Value: 8

Which of the following statements accurately describes the relationship between photosynthesis and cellular respiration?

a. photosynthesis occurs only in autotrophs; cellular respiration occurs only in heterotrophs

b. photosynthesis uses solar energy to convert inorganics to energy-rich organics; respiration breaks down energy-rich organics to synthesize ATP

c. photosynthesis involves the oxidation of glucose; respiration involves the reduction of CO2

d. the primary function of photosynthesis is to use solar energy to synthesize ATP; the primary function of cellular respiration is to break down ATP and release energy

1. Explain how enzymes help to control metabolism in living organisms. Be sure to discuss what enzymes are composed of and how their structure affects their function.

2. Discuss cellular respiration:

Name the four steps of cellular respiration.

Give the location of each step.

Explain how each step interacts with the other steps.

Summarize the net energy gain of each step.

3. Discuss fermentation:

Name the two types of fermentation.

Give the end products of each type.

Summarize the net energy gain of each type.

Give examples of cells which carry out each type.

4. Discuss the two stages of photosynthesis:

How do the light reaction and the Calvin cycle interact with each other?

Where does each of these stages occur?

What are the reactants and products of each of these two stages?

5. Describe the different ways that C4 and CAM plants carry out photosynthesis, when compared to C3 plants; and then explain in eac

BIOB10H3 Lecture : BIOB10 Lecture 1.docx

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