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Life Science Test Flashcards

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Biology 101 flashcards
0
Q

All living things need…(list 5)

A 
Food
Water
Oxygen
Sunlight 
A habitat
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1
Q

Living things have the ability to…(list 4)

A

Grow
Move under there own power
Reproduce more of there own kind
Respond to stimuli

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2
Q

Plants are know as what in an ecosystem

A

Producers

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3
Q

Animals are know as what in an ecosystem

A

Prey or predators

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4
Q

Life processes…(list 10)

A 
Nutrition
Digestion 
Locomotion 
Absorption 
Circulation 
Exertion 
Cellular respiration  
Sensitivity
Reproduction 
Growth
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5
Q

What is a stimulus

A

Anything that causes an organism to reacts

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6
Q

What is the organization of life…(list 8)

A 
Atom: Hydrogen, oxygen, carbon 
Molecule: H2O, C12
Organelle: mitochondria, nucleus 
Cell: cheek cells, yeast, potato cells
Tissue: cardiac muscle tissue, skin
Organ: bladder, heart, liver, brain, lungs 
Organ system: respiratory, circulation, digestive 
Organism: human, yeast
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7
Q

What is the nucules

A

The brain of the cell, controls movement processes food, contains DNA, and processes reproduction

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8
Q

What is the cell membrane

A

The outer layer of the cell, it controls what enters and leaves the cell

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9
Q

What is the mitochondria

A

Produces energy for the cell using oxygen and glucose

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10
Q

What is cytoplasm

A

A jelly like substance that fills the cell

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11
Q

What is a cell wall

A

A rigid structure, gives the cell it’s shape, made of starch/cellulose. Located in a fungal and plant cell.

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12
Q

Parts of an animal cell…(list 4)

A

Mitochondria
Nucleus
Cell membrane
Cytoplasm

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13
Q

Parts of a plant cell…(list 7)

A 
Cell wall
Cell membrane 
Vacuole 
Chloroplast 
Nucleus 
Mitochondria 
Cytoplasm
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14
Q

Parts of a fungal cell…(list 6)

A 
Cell wall
Vacuole
Nucleus 
Cell membrane 
Mitochondria 
Cytoplasm
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15
Q

What is a vacuole

A

A large storage container that stores water and waste. Located in fungal and plant cells.

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16
Q

What is chloroplast

A

Green structure in witch photosynthesis occurs. Found in plant cells.

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17
Q

Cellular respiration processes…(6 steps)

A 
Oxygen is created by a producer 
Oxygen enters the cell
Glucose enters the cell
Oxygen chemically reacts with glucose 
Stores energy in the glucose is released 
Energy is released in the form of ATP
18
Q

What are chromosomes

A

The structures of DNA in the nucleus.

19
Q

What is mitosis

A

The type of reproduction somatic(non-sexual) cells go through.

20
Q

What happens during the first part of mitosis(interphase)

A

The chromosomes are copied. Each chromosome becomes two chromatids. A cell spends most of its life in this stage.

21
Q

What happens during the second part of mitosis(prophase)

A

Mitosis begins. The cell membrane dissolves. Chromosome condense into rod like structures.

22
Q

What happens during the third part of mitosis(Metaphase)

A

The chromosomes line up along the equator of the cell, homologous(the same) chromosome pair up.

23
Q

What happens during the fourth part of mitosis(anaphase)

A

The chromatids separate and move to opposite sides of the cell.

24
Q

What happens during the fifth part of mitosis(telophase)

A

A nuclear membrane forms around each set of chromosomes, and the chromosomes unwind. Mitosis is complete.

25
Q

What happens during Cytokinesis

A

The cell pinches into two individual cells.

26
Q

What does ATP stand for

A

Adenosine triphosphate

27
Q

What does yeast produce while consuming sugar

A

Carbon dioxide

28
Q

Yeast is a…

A

Fungus

29
Q

How many different species of yeast exist

A

500

30
Q

Yeast is what till mixed with water

A

Dormant

31
Q

How do yeast reproduce

A

By mitosis

32
Q

How much protein does yeast contains

A

Yeast is 50% protein

33
Q

Where is yeast found

A

On plants, animals, skin, soil, and water

34
Q

Ideal temperature for yeast growth

A

90° F

35
Q

Yeast dies at what temperature

A

100° and over

36
Q

Order of mitosis

A

1) Chromosomes are copied. Each chromosome is then two chromatids. A cell spends most of its life in interphase
2) The nuclear membrane dissolves. Chromosome condense into rodlike structures
3) The chromosomes line up along the equator of the cell, homologous chromosome pair up
4) The chromatids separate and move to opposite sides of the cell
5) A nuclear membrane forms around each set of chromosomes, and the chromosomes unwind. Mitosis is complete
6) The cell pinches into two individual cells

37
Q

What is nutrition

A

The process of food getting or making

38
Q

What is digestion

A

The process were food breaks down into a souble liquid form. Enzymes are the chemicals that make food soluble.

39
Q

What is locomotion

A

Moving from place to place under ones power

40
Q

What is absorption

A

The movement of soluble through a cell.

41
Q

What is circulation

A

The movement of soluble food, oxygen, and waste through a organism.

42
Q

What is excretion

A

When a organism gets rid of solid, liquid, and gas waste.

43
Q

What is sensitivity

A

When a living organism reacts or responds to stimuli.

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