BIOA02H3 Lecture Notes - Lecture 1: Zygote, Spermatozoon, Seta

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11 Jan 2018

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There are three major kingdoms: bacteria, archaea, eukaryotes. Characteristics that bryophytes lack: they have no cuticle. Tree of life: cuticle is a hydrophobic waxy layer which cover the upper and lower epidermis. It used to slow down the loss of water from the surface. Lose and uptake water quickly along the whole surface: their surface is permeable in order to uptake water. They do not take up water just from the root but rather from the entire surface of the plant: they are typically found in moist areas. In contrast to most other plants, bryophytes adapt to survive a total desiccation. In addition to its transportation use vascular system serve as support which help the plant to stand upright. The absence of those two characteristics (cuticle and vascular system) make bryophytes less adaptable to terrestrial life. There are four groups that make up bryophytes.

Related Questions

1. Select the true statements concerning tracheids.

	Tracheids are responsible foranchoring the plant to a substrate.
	Pterophytes lack tracheids but haveeuphylls.
	Without tracheids colonization ofland would not have been possible.
	All of the large dominant extantland plants are tracheophytes.
	Tracheids allow for efficienttransport of water over longer distances.

2. Plants lacking well-developed conducting systems such asmosses, liverworts, and hornworts have been called

angiosperms.

3.Select the true statements concerning gametophytes andsporophytes.

Both produce gametes.

Sporophytes are alwaysnutritionally dependent on the gametophytes.

Across all plant speciesgametophytes tend to remain small.

Only sporophytes produce eggs.

Antheridia are located on the gametophyte.

4. A waxy cuticle helps prevents desiccation. What is the costof this adaptation?

Slower H₂Otransport

Reduced gas permeability

Lowered light absorption

Increased exposure to damaging UVradiation

Increased susceptibility to pathogenic infection

5.Select the best answer to complete the following statement.Stomata are openings used by plants for the passage of

carbon dioxide, oxygen, and watervapor.

only carbon dioxide and spores orgametes.

only carbon dioxide and watervapor.

only carbon dioxide andpollen.

only oxygen and carbon dioxide.

6.One of the main distinctions between charophytes and landplants is the possession of a cuticle. Why do modern charophyteslack a cuticle?

Their tough seed coats negate theneed for a cuticle.

Cuticles aren't necessary whenliving in water.

Modern Charophytes make up for theabsence of a cuticle by have large numbers of stomata.

Charophytes have a haplodiplontic life cycle.

7.Select the following plant adaptations for the terrestrialenvironment that are correctly listed by their function.

Stomata allow for gas exchangebetween the plant and the atmosphere.

Tracheids protect againstdesiccation.

Stomata transport water aroundplant body.

Tracheids transport water and minerals around the plantbody.

8.What would be the simplest way for a non-botanist to confirmthat the fern is not a small palm?

Height, all ferns are verysmall

Lack of roots, palms have roots butferns do not

Leaf shape, only ferns havedissected leaves

Dots on the underside of the leaf, only ferns have sporangiaunder their fronds

9.Select the true statements relating to the colonization ofland by plants.

Desiccation is a much more commonproblem in terrestrial environments.

Cuticle layers reduce gasexchange.

Xylem tissue, seeds and stomata arefound on both plants and charophytes.

Without trachids land plant would not have been to able to growmore than just a meter or so tall.

10.Survival on land for organisms is difficult because of theproblem of

syngamy.

11. Well-developed vascular systems are absent in all of thefollowing except

Pterophytes.

12. Bryophytes, like ferns and certain other tracheophyteplants, require

soil to reproduce sexually.

water to reproduce sexually.

sunlight to reproducesexually.

air to reproduce sexually.

shade to reproduce sexually.

13.Plant success on the terrestrial landscape is linked to theevolution of all of the following except

	gas-filled air spaces.
	stems.
	specialized reproductivefeatures.
	specialized roots.
	increased area for photosynthesisin the leaves.

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Question 1

The key innovation that allowed for plant survival on land, seenin the first land plants and all others after, but not in thecharophytes, is

Question 1 options:

	fruit.
	vascular tissue.
	the seed.
	protection of the embryo.

Question 2

Which dramatic change in the alternation-of-generations lifecycle led to the protection of all phases of the life cycle and theformation of seeds?

Question 2 options:

	transition from a dominant gametophyte generation to a dominantsporophyte generation
	transition from a dominant sporophyte generation to a dominantgametophyte generation

Question 3

Which structure(s) allow the sporophyte of vascular plants to beprotected against drying out?

Question 3 options:

	the waxy covering of leaves, called the cuticle
	small openings in the leaves, called stomata
	guard cells that surround each stoma
	all of these structures protect the dominant sporophyte fromdrying out

Question 4

Why are the bryophytes called nonvascular plants?

Question 4 options:

	because they are specialized for transporting water and organicnutrients
	because their roots, stems, and leaves lack vascular tissue
	because they protect their embryo
	because they produce wind-blown spores

Question 5

Which generation is dominant in the bryophytes?

Question 5 options:

	the generations are equally dominant
	the sporophyte
	the gametophyte
	there is no sporophyte generation in bryophytes

Question 6

Which of the bryophytes are typically low-lying, due mostly totheir need for moisture and lack of vascular tissue?

Question 6 options:

	the mosses
	the liverworts
	the hornworts
	all of the bryophytes are low-lying

Question 7

Which structure of the moss protects the embryo from dryingout?

Question 7 options:

	the archegonium
	the antheridium
	the sporangium
	the stalk

Question 8

Cooksonia were the first __________ plants; they hadwind-blown spores, __________, leaves, and roots.

Question 8 options:

	nonvascular; branches
	vascular; seeds
	nonvascular; seeds
	vascular; branches

Question 9

The roots of today's lycophytes are much like __________ were inearly vascular plants; the vascular tissue is __________.

Question 9 options:

	roots; centrally placed
	stems; centrally placed
	leaves; only found at the perimeter
	branches; only found at the perimeter

Question 10

Pteridophytes, or ferns and their allies, are __________vascular plants with __________.

Question 10 options:

	seed-producing; microphylls
	seedless; microphylls
	seedless; megaphylls
	seed-producing; megaphylls

Question 11

Microphylls __________. Megaphylls__________.

Question 11 options:

	are found in all vascular plants; are only found in thelycophytes
	are broad leaves with a single strand of vascular tissue; arenarrow and have several strands vascular tissue
	are broad leaves with several strands of vascular tissue; arenarrow and have a single strand of vascular tissue
	are narrow and have a single strand of vascular tissue; arebroad leaves with several strands of vascular tissue

Question 12

The fern life cycle

Question 12 options:

	all of these choices accurately describe the fern lifecycle.
	is dependent on external water.
	relies on the wind to disperse the spores.
	produces a gametophyte that lacks vascular tissue.

Question 13

Seed plants use meiosis to produce

Question 13 options:

	spores and pollen.
	seeds and fruit.
	pollen and seeds.
	microspores and megaspores.

Question 14

In seed plants, a microspore develops into

Question 14 options:

	an egg.
	a pollen grain.
	a sporophyte.
	All of these answers correctly complete this sentence.

Question 15

Within the angiosperms, or ___________, two groups exist. Theyare named for their __________.

Question 15 options:

	vascular plants; number of cotyledons, or seed coats
	nonvascular plants; leaf type
	flowering plants; number of cotyledons, or seed coats
	fungi; leaf type

Question 16

The __________ parts of a flower are the stamens, each of whichhas two parts: the anther and the filament. The __________ parts ofa flower are the carpel, which has three major regions: the stigma,the style, and the __________.

Question 16 options:

	female; male; ovary
	male; female; sepals
	female; male; sepals
	male; female; ovary

Question 17

Double fertilization during the angiosperm life cycle involvestwo sperm, one of which __________, while the other __________.

Question 17 options:

	fertilizes the egg to form a zygote; produces the endospermnucleus, which will develop into food for the developing plant
	is a mature male gametophyte; is an immature malegametophyte
	lands on the carpel of the plant; is usually blown away in thewind
	develops into the seed; develops into the fruit that surroundsthe seeds

Question 18

The bodies of most fungi are made up of a network of filamentscalled hyphae.

Question 18 options:

	True
	False

Question 19

What is the difference between land fungi and the chytrids?

Question 19 options:

	Land fungi are motile and have flagella at all stages of theirlife cycle. The chytrids do not have flagella.
	Land fungi are nonmotile and do not have flagella at any stageof their life cycle. The chytrids have flagellated spores andgametes.
	Land fungi are nonmotile and only have flagellated spores. Thechytrids have flagellated spores and gametes.
	Both are motile for part of their life cycle. Land fungi aremotile as gametes. Chytrids are motile as spores.

Question 20

The vast majority of described species of fungi are __________fungi, which include unicellular __________, which reproducesexually once their food supply runs out. When yeast ferment, theyproduce ethanol and carbon dioxide.

Question 20 options:

	zygospore; black bread molds
	club; mushroom
	sac; yeast
	mutualistic; lichen

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Directions: Write out your answers in the word document and then copy and paste everything into the text box. If you do not include the question along with your answer, you will be marked down.

1. What would happen if you put pGLO directly onto an agar plate and you checked on it after letting it incubate?

a. It would glow

b. It would grow

c. Nothing

d. E.Coli would grow

2. Explain in a short sentence or two your reasoning for question 1.

3. What shape is a plasmid?

4. How is a plasmid different from human DNA? Write one difference.

5. Bacteria can share DNA through a unique method called transformation. What are the TWO requirements a bacteria cell must possess in order to share DNA with another bacteria cell?

6. Why during our experiment did we put our e.Coli with pGLO inserted in it onto agar plates with ampicillin (Amp)?

a. So that it would kill the e.Coli and serve as our control

b. To kill all the e.Coli that did not take up the pGLO

c. To create antibiotic resistant bacteria

d. To cause the e.Coli to glow

7. Yeast cells are what type of cell?

a. Bacteria

b. Eukaryotes

c. Prokaryotes

d. Archaea

8. Why would someone study yeast cells instead of human cells?

9. Do you agree or disagree with the following statement: If your cells is exposed to UV light and it causes a thymidine dimer, your cell is doomed to die.

10. Are wildtype (control) yeast immune to UV light damage?

11. BTB was a dye we used to directly measure ________

a. PH

b. Oxygen

c. Carbon Dioxide

d. Carbon

12. BTB was a dye we used to INDIRECTLY measure ________

a. PH

b. Oxygen

c. Carbon Dioxide

d. Carbon

13. What is one reason why a plant would want to close its stomata?

14. What is one function that ground tissues provides for a plant?

15. List one difference between monocots and dicots

16. Why is it important for a plant to have stomata? Write one reason why

17. What is the purpose of xylem in a plant cell?

18. Pholem is also important to plant cells, what is itâs purpose?

19. This theory explains why trees can grow to such tall heights and still provide water to their leaves.

a. Translocation

b. Transpiration

c. Cohesion-Tension

d. Vacuum

20. Fill in the blank

Pholem is considered to be a(n) _________ transport system while xylem is considered a(n) _______________transport system.

21. Apical meristems are found in these two places on a plant

a. At the site of new leaf growth and the roots closes to the top of the soil

b. Vascular tissue and ground tissue

c. Ground tissue and dermal tissue

d. The point of new growth on the stem and root

22. Fill in the blank.

Xylem moves substances _____ while phloem moves substances _____ a plant.

23. What are the two types of digestive mechanisms?

24. What is one benefit that mastication has for digestion?

25. What is an example of an organism that digests food intracellularly?

26. What is an example of an organism that digests food extracellularly?

27. Give two examples of where surface area is increased in a small space to aid in absorption within the human body

28. Name one difference between arteries and veins.

29. What is the role of capillaries in the circulatory system?

30. How are the terms âexcretionâ and âdefecationâ different?

31. What is the role of the ADH hormone?

32. What does the term âMedullaâ refer to when talking about mammalian tissue?

a. The outer edges of a tissue

b. The middle of a tissue

c. The top of a tissue

d. The bottom of a tissue

33. Fill in the blank

Mammals have a _______ circulatory system while insects have a _______ circulatory system.

34. What is one benefit a closed circulatory system provides?

35. What is hemolymph?

BIOA02H3 Lecture Notes - Lecture 1: Zygote, Spermatozoon, Seta

BIOA02H3 Full Course Notes

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