Plant Hormones And Menstrual Cycle Hormones Flashcards

1
Q

What are plant hormones?

A

Chemical substances that regulate plant growth and development.

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2
Q

Name the primary types of plant hormones.

A

Auxins, gibberellins, ethene.

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3
Q

True or False: Auxins are responsible for cell elongation in plants.

A

True.

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4
Q

What role do gibberellins play in plant growth?

A

They promote stem elongation, seed germination, and flowering.

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5
Q

How does ethylene affect fruit ripening?

A

It accelerates the ripening process in fruits.

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6
Q

What is the primary function of auxins in phototropism?

A

To promote cell elongation on the side of the plant away from light.

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7
Q

True or False: Cytokinins are produced in the roots of plants.

A

True.

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8
Q

Fill in the blank: The endocrine system in humans regulates bodily functions through __________.

A

hormones.

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9
Q

Name the four major hormones involved in the menstrual cycle.

A

FSH, LH, Oestrogen and progesterone.

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10
Q

True or False: The menstrual cycle has three phases: follicular, ovulation, and luteal.

A

True.

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11
Q

What triggers ovulation in the menstrual cycle?

A

A surge in luteinising hormone (LH).

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12
Q

Multiple Choice: Which hormone is primarily responsible for thickening the uterine lining? A) Ostrogen B) Progesterone C) Luteinising hormone D) Follicle-stimulating hormone

A

B) Progesterone.

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13
Q

What is the function of follicle-stimulating hormone (FSH) in the menstrual cycle?

A

It stimulates the growth of ovarian follicles.

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14
Q

Fill in the blank: The __________ phase is characterised by the development of follicles in the ovary.

A

follicular.

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15
Q

True or False: Menstruation occurs if fertilisation does not occur.

A

True.

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16
Q

What is the primary source of estrogen in females?

A

Ovaries.

17
Q

Fill in the blank: The __________ feedback mechanism regulates hormone levels during the menstrual cycle.

A

negative.

18
Q

True or False: Testosterone is the primary male sex hormone.

A

True.

19
Q

What are the effects of Oestrogen on the female body?

A

It regulates the menstrual cycle and promotes the development of secondary sexual characteristics.

20
Q

What triggers the start of menstruation?

A

A drop in Oestrogen and progesterone levels.