Exam 4 Flashcards

1
Q

What are characteristics of parenchyma tissue?

A

-Thin walled
-Flexible
-Many sided
-Divide

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2
Q

Xylem conducts what materials?

A

Water and mineral ions

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3
Q

Phloem conducts what materials?

A

Movement of sugars and other organic solutes

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4
Q

Monocots and Eudicots are named by what?

A

Named by their leaf-like structures

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5
Q

Apical meristems cause what type of growth?

A

Primary growth - cells that divide rapidly in tips of roots and shoots

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6
Q

Describe what type of roots Eudicots have?

A

Taproot - main root with many tiny branches outward

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7
Q

Describe what type of root Monocots have?

A

Fibrous root system - roots that grow outward from the stem

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8
Q

Vascular and cork cambium help with which type of growth (primary or secondary)?

A

Secondary Growth

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8
Q

How many nutrients are needed for plants to survive and live healthy?

A

Plants require 16 different elements for growth

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8
Q

Why do we do cutting grafts?

A

-Cutting allow plants to form roots and new shoots from nodes in stem fragments from a parent plant
-Grafts allow plants to fuse with tissues from another plant

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9
Q

How many hormones are there that effect plants?

A

5 (gibberellins, auxins, cytokinin, ethylene, abscisic acid)

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10
Q

Name one tropisms and how it affects a plant based on the environment factors that are going on around the plant

A

Gravitropism - plant growth in a direction influenced by gravity

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11
Q

What causes leaves to fall?

A

Abscission

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12
Q

What is the protective covering of teeth?

A

Enamel

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13
Q

What causes stomach ulcers?

A

Helicobacter pylori

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14
Q

Why does the stomach have folds

A

The folds in the lining of the small intestine increase surface area for digestion and absorption

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15
Q

Where do most nutrients get absorbed?

A

Internal environment across the wall of the small intestine

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16
Q

Where does most water get absorbed?

A

Internal environment across the wall of the small intestine

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17
Q

Large intestines have bacteria that live in this environment that produce a symbiotic relationship with humans. What does the bacterium give to humans?

A

Feces

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18
Q

A diet high in what keeps you “regular”?

A

Fiber

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19
Q

You are supposed to eat what type of carbs?

A

Complex carbs

20
Q

What are the fat soluble vitamins?

A

A, E, D, K

21
Q

How can you test body fat/size

A

Weight x 700/height squared

22
Q

What are some causes of kidney failure?

A

Diabetes, High blood pressure, Tobacco use

23
Q

What are two types of dialysis

A

Hemodialysis, Peritoneal Dialysis

24
Q

What re the 3 types of neurons?

A

Sensory, Motor, Neuroglia

25
Q

Action potential helps what occur?

A

The release of neurotransmitters

26
Q

Neurotransmitters are used to do what?

A

TO release chemical signals into the synaptic cleft by a neuron’s axon endings

27
Q

Central Nervous System contains what?

A

Brain and Spinal Cord

28
Q

Myelin helps nerves do what?

A

It increases the speed of signal transmission

29
Q

Somatic nervous system controls what

A

Skeletal muscle and sensory receptors

30
Q

Parasympathetic nervous system is the body at what state?

A

The body’s ability to relax

31
Q

Cerebrum (main portion of upper brain) controls what?

A

Language, speech and vision

32
Q

Cerebellum (sits below the main part of the upper brain) controls what?

A

Posture, balance coordination

33
Q

What causes near sightedness

A

The eye focuses light in front of the retina instead of onto it

34
Q

What helps you see colors in eye?

A

Cone cell

35
Q

Ear has how many region?

A

Three - outer, middle, inner

36
Q

Steroid hormones move through the cell membrane easily why?

A

They are lipid soluble and can bind to receptors within a cell

37
Q

How do amino acid hormones effect the inside of the cell?

A

Bind to membrane receptors at the cell surface

38
Q

How does growth hormones affect development

A

Growth hormones promote growth within the body and influence metabolism in adults

39
Q

What mineral deficit causes a goiter?

A

Iodine

40
Q

What are symptoms of excessive thyroid production?

A

Shaking hands, increased sweating, weight loss, brittle hair

41
Q

Thymus helps our immune system in what ways?

A

T cells mature in the thymus and T cells are critical to helping our bodies fight off foreign invaders

42
Q

Glucagon causes what to happen

A

The breaking down of glycogen and the release of glucose, raising blood glucose levels

43
Q

What causes type II diabetes

A

Target cells stop responding to insulin

44
Q

What are some shared sex hormones

A

Testosterone

45
Q

Pineal gland secretes what to affect sleep

A

Melatonin

46
Q

What is the major controlling organ of hormones

A

Hypothalamus

47
Q

Is swallowing in the esophagus an active or passive process?

A

Passive

48
Q

Water soluble vitamins are stored or processed through the body

A

True