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7th Science > Exam > Flashcards

Exam Flashcards

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Biology 101 flashcards
1
Q

Difference between organic and inorganic matter

A

Organic matter is something that once was or comes from a living thing, and inorganic matter is something that was never living, or part of a living thing

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2
Q

Element found in organic matter

A

Hydrogen. Carbon. Oxygen

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3
Q

4 elements in human body

A

Oxygen. Carbon. Hydrogen. Nitrogen.

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4
Q

Elements in Earths crust

A

Oxygen. Silicon. Aluminum. Iron

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5
Q

Cell organelle that converts energy for cell use

A

Mitochondria

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6
Q

Regulates the body’s hormones. And has specialized ducts called______

A

Endocrine system

Glands

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7
Q

Genetic material G–>L

A

Cell Nucleus
Chromosomes
DNA
Genes

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8
Q

Organelles that plants and animals have

A

Cell membranes
Nucleus
Mitochondria

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9
Q

What structures so all cells have that support the cell theory?

A

Cell membranes

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10
Q

Cell theory

A

All cells come from other cells through cell division

Cells are the basic unit of life

All living things are made up of one or more cells

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11
Q

What is body’s response to exercise?

A

Sweating- cool down

Breathing- eliminate excess CO2 and take in more O2

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12
Q

Levels of organization

A 
Organelle
Cell
Tissue
Organ
Organ system
Organism
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13
Q

Where are chromosomes located in the cell? And what are they shaped like?

A

In the nucleus. And they look like X

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14
Q

Advantages of using cell model

A

Models are used to help us see things that are either too big or in this case too small to see with the unaided eye

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15
Q

Where is the genetic material located inside a cell

A

In the nucleus

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16
Q

_____ is the process where organisms are more likely to survive and reproduce if they are better adapted to their environments compared to other organisms

A

Natural selection

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17
Q

An animal’s ability to hide from predators and prey by blending in with the environments is an example of __________

A

Camouflage

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18
Q

Plant cells differ from animal cells how?

A

Plant cells have 3 organelles that animal cells do not have: cell walls provide support and structure for plant cell, central vacuoles provide turgor pressure for the cell wall, and chloroplasts where the photosynthesis occurs

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19
Q

Breakdown of large molecules into smaller ones

A

Function of digestive system

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20
Q

How to read volume on graduated cylinder?

A

First, place the cylinder on a level surface, then get eye level with the top of the liquid, finally read the meniscus

21
Q

What are you advantages and disadvantages of asexual reproduction?

A

The biggest disadvantage is the lack of genetic variation. Advantages include little energy required, reproduction occurs quickly, organisms can quickly outcompete other organisms for resources.

22
Q

What are not examples of genetic instructions?

A

Spoken language

favorite food

23
Q

What is the difference between asexual and sexual reproduction?

A

In sexual reproduction, the offspring is the result of blending genes from two parents. In asexual reproduction, the offspring is the result of one parent only, and is a genetic clone of that parent.

24
Q

How to sweat help maintain homeostasis?

A

When somebody sweat water leaves their bodies are openings in the skin and cools them.

25
Q 
Urinary system 
Respiratory system
Digestive system 
Integumentary system 
All work together to\_\_\_\_\_
A

remove waste from the body

26
Q

What type of offspring the sexual reproduction result in?

A

Offspring with genetic variation

27
Q

Ovaries and testes are part of what 2 systems?

A

Reproductive and Endocrine

28
Q

Why do insects have differences in mouth parts?

A

Adaptations have allowed them to eat different types of food

29
Q

___Carries nutrients and oxygen to body cells in the circulatory system

A

Blood

30
Q

What is the main function of the excretory system?

A

To eliminate waste from the body

31
Q

A group of organs working together is called an____

A

Organ system

32
Q

Difference in beak sizes in birds is a result of an____

A

Adaptation

33
Q

Fever helps stop infection by causing bacteria to decrease or increase?

A

Decrease

34
Q

What cell function do all living things have in common?

A

they all respirate, grow, reproduce, respond to stimuli, adapt to their environment and have internal movement

35
Q

Which of the following are common to all living organisms and cells?

A

Remove waste, grow and die

36
Q

Circulatory and respiratory systems are involved in____

A

The gas exchange

37
Q

The mouth esophagus stomach pancreas small intestine large intestine and rectum are involved in _________

A

The digestion of food

38
Q

What are the main organs of the circulatory system?

A

Heart, the vessels, and the blood

39
Q

The four main types of asexual reproduction are____

A 
Binary fission, 
budding, 
vegetative 
propagation, regeneration,
sporation
40
Q

A hybrid receives____genetic information for a trait from each parent

A

Different

41
Q

Heredity is the passing of ____From parent to offspring

A

Genes

42
Q

A genotype is the ______ of an organism

A

Genes

43
Q

________ was the grandfather of Genetics

A

Gregor Mendel

44
Q

An organism with 2 alleles for one trait that are the same is said to be________

A

Homozygous

45
Q

Phenotype is the way an organism____as a result of its genotype

A

Looks

46
Q

Offspring from sexual reproduction are always____from the parents

A

Different

47
Q

During sexual reproduction offspring get chromosomes from___parents

A

Both

48
Q

Offspring from a sexual reproduction are genetically____to the parent

A

Identical

49
Q

How to read a triple beam balance

A

First read the middle beam, the hundreds beam. Then read the top beam, the 10s beam. Finally,read the bottom beam. The ones beam. Add the three amounts together

7th Science (8 decks)

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