Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

biology > reviewer > Flashcards

reviewer Flashcards

(82 cards)

Start Studying
1
Q

is the process of making new organisms. Parent organisms reproduce to make offspring.

A

Reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The producing organism/s who give/s life are called

A

Parent/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The new organism produced through the process of

reproduction is called

A

progeny(plural=progenies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The process of reproduction is also called

A

pro creation or breeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

is vital for the species continuation on the planet.

A

Reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

It is the production of offspring by a single parent

A

Asexual Reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

asexual is seen in___

A

unicellular organisms, simple plants & animals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The offspring are identical to one another and to their parent. Such morphologically & genetically similar individuals are called

A

Clone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In this, the parent cell divides (cell division) into two or more individuals

A

Fission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

2 types of fission

A

binary and multiple fission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

It is the division of parent cell into two individuals.

A

binary fission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

It is the division of parent cell into many individuals.

A

multiple fission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

After maturation, it is detached from parent body to form new individual.

A

budding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

in this, the body breaks into distinct pieces (fragments) and each fragment grows into an adult capable of producing offspring.

A

fragmentation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

It is the production of offspring from vegetative propagules in plants.

A

vegetative propagation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Reproduction in multicellular fungi like mushrooms and molds via

A

“spore formation” or sporulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

are microscopic biological particles that allow fungi to be reproduced, serving a similar purpose to that of seeds in the plant world.

A

fungal spores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

It is the reproduction that involves formation of male & female gametes, either by the same individual or by different individuals of the opposite sex

A

Sexual reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

It results in offspring that are not identical to the parents or amongst themselves.

A

sexual reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Essential gamete production step involving a type of cell division called

A

meiosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The events prior to the fusion of gametes.

A

pre fertilization events

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

It is the formation of male and female gametes.

A

gametogenesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Similar gametes. They cannot categorize into male & female gametes.

A

Homogametes (isogametes)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The male & female gametes are distinct types. Male gamete is called antherozoid (sperm) and female gamete is called egg (ovum).

A

Heterogametec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
-Isogametes of Cladophora (an alga) -Heterogametes of Fucus (an alga) -Heterogametes of Homo Sapiens
26
is a form of sexual reproduction that involves the male and female gametes of similar shape and size (morphology).
Isogamy
27
is a form of sexual reproduction that involves the male and female gametes of different shape and size (morphology)
Heterogamy or anysogamy
28
Male & female reproductive structures present in the same individual.
Bisexual
29
If male & female flowers are present on same plant, it is called
monoecious
30
Male and female reproductive structures are present on different individuals.
Unisexual
31
If male and female flowers are present on different plants, it is called
dioecious
32
Fungi may be homothallic (bisexual) or heterothallic (unisexual).
33
Male gametes need a medium to move towards female gametes for fertilisation.
Gamete Transfer
34
In most organisms, male gamete is motile and the female gamete is stationary.
Gamete Transfer
35
In some fungi and algae, both types of gametes are
motile
36
polien grains (in anthers) carry male gametes and ovule carries the egg. Pollen grains are transferred to the stigma.
seed plants
37
(algae, bryophytes & pteridophytes), gamete transfer takes place through water medium. To compensate the loss of male gametes during transport, large number of male gametes is produced
simple plants
38
(including dioecious plants), pollination helps in transter of pollen grains. Pollen grains germinate on the stigma and the pollen tubes carrying male gametas reach the ovule and discharge male gametes near the egg.
cross pollinating plants
39
(e.g. peas), anthers & stigma are close to each other. So transfer of pollen grains is easy.
bisexual self-fertilizing plants
40
the fertilisation helps for successful transfer and coming together of gametes.
dioecious animals
41
In rotifers, honeybees, some lizards, birds (turkey) etc., female gamete develops to new organisms without fertilisation. This is called
parthenogenesis
42
it is the fusion of gametes to form a diploid
zygote
43
Syngamy occurs in the external mediues (water),
External fertilisation
44
external fertilization disadvantage
The offspring are extremely vulnerable to predators threatening their survival up to adulthood.
45
non motile egg is formed inside the female body to where motile male gamete macies & fuses
internal fertilization
46
causes modifications of groups of cells into various tissues and organs to form an organism.
Cell differentiation
47
It is the development of embryo from zygote.
Embryogenesis
48
increase the number of cells in the embryo
Cell divisions
49
Here, the zygote develops into a young one inside the female body. Later, the young ones are delivered out of the body
Viviparous
50
Here, animals lay fertilized/unfertilized eggs.
Oviparous
51
is responsible for delivering sperm to the female reproductive system
male reproductive system
52
is a collection of internal and external organs in both males and females that work together for the purpose of procreating.
reproductive system
53
From each testis, sperm pass into a coiled tube the epididymis - for the final stages of maturation.
54
are oval-shaped glands responsible for the manufacture of sperm and the sex hormone testosterone.
Testes
55
Acts as site of sperm maturation
Epididymis
56
Produce sperm and hormones (see part e)
Testes
57
Conducts sperm between epididymis and prostate gland
Ductus Deferens (Sperm Duct)
58
Secrete fluid that makes up much of the volume of semen
Seminal Vesicles
59
Secretes fluid and enzymes
prostate gland
60
Conducts semen to exterior
urethra
61
Contains erectile tissue; deposits sperm in vagina of female; produces pleasurable sensations during sexual activities
penis
62
Surrounds the testes and controls their temperature
scrotum
63
Each epididymis is a tube about ___ feet long, which is tightly coiled and bunched into a length of just ___ inches.
20 feet long, and 2 inches
64
Each testis is a mass of more than 800 tightly looped and folded vessels known as
seminiferous tubules
65
Inside each tubule, sperm begin as blob-like cells called ____ lining the inner
spermatogonia
66
also known as seminal fluid, is much more than just sperm.
semen
67
A man will produce roughly ___ billion lion sperm during his whole lifetime and close to ___ billion per month.
525 billion and 1 billion per month
68
There are around ___ to ___ million sperm in an average in a single human ejaculation !!
200 to 500 million sperm
69
Some men have no sperm in their semen at all. This is known as
azoospermia
70
A sperm is about 1/500 inch long, but most of this is a tail.
sperm cell
71
The sperm head is only ___ inch, about the same size as a red blood cell.
1/5000 inch
72
The midpiece has a central filamentous core with many ____ spiraled around it, to give it energy to move the tail which propels it forward.
Mitochondria
73
Sperm develop in the testes and consist of
a head, a midpiece, and a tail
74
is a form of male birth control that cuts the supply of sperm to your semen. It's done by cutting and sealing the tubes that carry sperm
Vasectomy
75
(also called Fallopian tubes or oviducts) connect the ovaries to the uterus.
The uterine tubes
76
These are narrow tubes that are attached to the upper part of your uterus and serve as pathways for your egg (ovum) to travel from your ovaries to your uterus.
Fallopian Tubes
77
connects with the uterus.
Isthmus
78
uterine 3 parts: dilated portion, the ampulla, curves over the ovary.
79
usually occurs in the ampulla. The eggs then travel through the isthmus into the uterus.
Egg fertilization
80
making sperm These pass through a larger stage
primary spermatocytes
81
making sperm become smaller as
secondary spermatocytes
82
making sperm begin to develop tails as.
spermatids

biology (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions