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Science 7: Unit B > Section 1-4 > Flashcards

Section 1-4 Flashcards

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Biology 101 flashcards
1
Q

A seed plant is a plant that doesn’t produce its own seeds. True or False

A

This is false since all plants produce seeds.

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2
Q

What is selective breeding in plants?

A

Selective breeding is when scientists choose certain plants to breed to make new species.

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3
Q

Cuttings and graftings are the same thing. True or False?

A

False, a cutting are small pieces of a plant that still have a stem, grafting is when you attach one plant to another.

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4
Q

Plants that don’t need seeds to reproduce are called suckers. True or False?

A

False, this is actually called vegetative reproduction.

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5
Q

What four things do plants need to survive?

A

Light, water, space and nutrients.

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6
Q

How is monoculture important to our economy?

A

Monoculture is the production of one type of plant which is then sold to make money.

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7
Q

The yield of the plant is the amount of useful plant part per plant. True or False?

A

True

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8
Q

Provide an example of a plant that has special adaptations to help it with its surroundings.

A

Answers may vary

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9
Q

What are two of the 5 main nutrients a plant needs?

A

Nitrogen, phosphorous, potassium, calcium and magnesium.

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10
Q

Plants with long stems that run across the surface of the ground are called ________.

A

Runners

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11
Q

What is a plant called that grows off a stem of another plant?

A

A sucker

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12
Q

What is a rhizome?

A

A plant that has stems that run underground.

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13
Q

Biological control is when natural predators are used to kill invasive species. True or False?

A

True

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14
Q

What’s the difference between a herbicide and a pesticide?

A

A pesticide is made to kill insects that harm the plants. Herbicides are made to kill invasive plants like dandelions.

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15
Q

Diffusion is not used in osmosis. True or false?

A

False. Diffusion allows particles to move from a high concentration to a low concentration.

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16
Q

Cellular respiration doesn’t need photosynthesis to function. True or False?

A

False, without any photosynthesis, the whole plant wouldn’t function.

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17
Q

Photosynthesis uses chloroplasts to make energy for the plant. True or False

A

True

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18
Q

Explain what osmosis is and explain why plants use it.

A

Osmosis is the transportation of water particles through a selectively permeable membrane using the process of diffusion. Plants use this as a way to get water to places the other processes cannot.

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19
Q

What process allows water to travel through tiny tubes in the roots and stems, causing the particles to attract and transport?

A

Capillary Action

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20
Q

Explain how transpiration intakes water.

A

Transpiration happens when water particles evaporate and are raised upwards, throughout the plant. These particles then travel up the stem

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21
Q

What is the process that draws water from the plants roots called?

A

This process is called transportation.

22
Q

Stems provide a pathway for nutrients to get throughout the plant. True or False?

A

True

23
Q

What is a leaves main purpose?

A

Produces food, takes in carbon dioxide and releases oxygen, allows water to exit the plant

24
Q

What main structures are located in seeds?

A

An embryo, for reproduction, and food for the embryo.

25
Q

Plants aren’t necessary to all of the life on earth. True or false.

A

Answer: False they supply us with many things we rely on.

26
Q

What four categories can vegetation be classified across Canada.

A

a) forest, barren, tundra, and agriculture b) thick forest, thin forest, barren, and tundra c) tundra, forest, semi-barren, and barren

27
Q

Aboriginal people used plants for medicine, fiber and food. True or false

A

Answer: True ex: they used paintbrush to treat rheumatism

28
Q

Plants can be made into rubber and glue. True or false

A

True

29
Q

Living resources are living things that can be used for human needs. True or false

A

Answer: True ex: When we cut lumber it can be used as a place for recreation.

30
Q

Plants produce oxygen for us. True or false

A

Answer: True they produce it during photosynthesis

31
Q

We use more natural resources as our population grows. True or false

A

Answer: True more people means more for people.

32
Q

Can you make syrup out of birch tree sap?

A

Answer: You can it just has a different taste

33
Q

Name one thing you probably see or use in class a day that is made out of plants and name the plant.

A

Answer: Paper or a lead pencil they are made out of trees

34
Q

Can plants live in a barren place and if so name what plant?

A

Answer: Yes, it is a cactus

35
Q

What isn’t made from a plant. a) staple b) paper c) glue d) straw hat

A

Answer: a) staples are made out of metal not plants

36
Q

A t-shirt isn’t made of a plant. True or false

A

Answer: False a t-shirt is made of cotton

37
Q

What is the textbook made from?

A

Answer: The grade 7 textbook is made from plant fibres.

38
Q

Do plants make their own food?

A

Answer: Yes they make it out of h2o, co2, and sunlight.

39
Q

Can plants provide shelter?

A

Answer: Yes they do ex: trees trunks can provide shelter for a bird or chipmunks/squirrel

40
Q

Soil isn’t just made of dirt. True/False

A

True

41
Q

If you don’t think soil is made of just dirt, what else is it made of?

A

Water, oxygen, minerals

42
Q

What 3 things does rich soil have?

A

Nutrients, plenty of microorganisms, organic particles

43
Q

How can you determine the quality of soil? How moist it is, if plants grow well, etc.

A

How moist it is, if plants grow well, etc.

44
Q

How does soil contribute to the ecosystem and everyday life?

A

It contributes by letting plants grow and stay alive so they can give food to connect the ecosystem chain

45
Q

What would happen if a soil if you grew the same plant year after year?

A

The soil would eventually run out of nutrients that the plant can’t make itself and would eventually be unable to sustain life

46
Q

What type of soil do you think is best for your garden?

A

Answers vary. It depends of what type of soil the plants need.

47
Q

How can our practices improve or degrade our soil?

A

Answers vary. It depends on how people treat the soil and how it’s used.

48
Q

What is no-till farming? What are the advantages/disadvantages?

A

No-till farming is a method of farming crops that doesn’t involve plowing. Advantages and disadvantages vary.

49
Q

What changes have been made in technology to improve soil quality?

A

Answers vary.

50
Q

How does human use impact the soil now compared with 100 years ago?

A

Health advances improved over the years, and there are more

Science 7: Unit B (1 decks)

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