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Science Mass Practice Questions > Mometrix free practice test > Flashcards

Mometrix free practice test Flashcards

1
Q

Homeostatic mechanisms bring the body ___ to baseline

A

back

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2
Q

Which of the following are examples of homeostatic mechanisms (select all that apply)
* consuming excess calories to gain weight
* lifting weights to increase muscle mass
* shivering when body temp falls
* secreting insulin to decrease blood sugar concentration
* increasing heart rate when blood pressure is low

A

C, D, E

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3
Q

Where is the gastrocnemius vein in relation to the femoral vein?

A

distal

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4
Q

Which is NOT a type of protein?
* fibrous
* membrane
* globular
* unsaturated

A

unsaturated

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5
Q

Which of the following is true regarding adipocytes?

A

they are responsible for storing the fat that is found in adipose tissue

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6
Q

Examples of a chemical change

A

including baking soda in a recipe to make it less sour

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7
Q

Examples of physical changes

A
  • phase changes
  • adding more water to clay to make it slip
  • crystalizing honey to make candy
  • releasing compressed gas to make a bottle-rocket launch
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8
Q

What is exchanged b/w two or more atoms that undergo ionic bonding?

A

valence electrons

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9
Q

Which of the following anatomical terms is NOT part of the knee?
* medial collateral ligament
* patella
* lateral malleolus
* lateral meniscus

A
  • lateral malleolus is part of the ankle joint
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10
Q

Where is the scapula in relation to the olecranon?

A

superior

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11
Q

How many tissue layers does the uterus have? What are they?

A
  • 3
  • endometrium, myometrium (smooth), perimetrium
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12
Q

Which of the following orbitals is the last to fill?
* 1s
* 3s
* 4p
* 6s

A

6s

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13
Q

Melanin is found in what 3 structures?

A
  • hair, skin, iris
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14
Q

A research group is investigating the relationship b/w age and screen usage screen shotted question on laptop question 23 and 24

A
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15
Q

What is formed when the plasma membrane surrounds a particle outside the cell?

A

endocytic vesicle

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16
Q

Why would plants die in salt solution?

A
  • salt sln = hypertonic = more solutes and less water
  • water flows from high to low concentration (down concentration gradient) W/O requirement for energy (ATP)
  • water flows from plant into sln = plant dries up and dies.
17
Q

A tissue contains ___ of cell types that work together to perform ___ function

A
  • similar type
  • same
18
Q

Which of the following statements is FALSE?
* an organelle is a specialized structure in a cell, such as a ribosome
* an organ is made up of similar tissues that perform the same function
* organ systems are tow or more organs performing similar functions
* a tissue contains a variety of cell types that work together to perform a specific function

A

D

19
Q

What DOES NOT obey the law of independent assortment?

A

two genes next to each other on a chromosome. (bc probs are linked genes)

20
Q

Which section of the digestive system is responsible for receiving chyme and further digesting it?
* duodenum
* small intestine

A

duodenum

21
Q

Which of the following is NOT provided as a result of valid research and observations recorded by scientists?
* a better understanding of the physical world
* the ability to predict possible outcomes affected by actions
* the ability to prevent earthquakes and other natural disasters
* the creation of various substances and technologies that enhance our world

A

C
* although we can use science to predict earthquakes and other natural disasters, there is currently no way of preventing them from occuring

22
Q

Which type of mutation is represented by the following sequence?
* original: 1 2 3 4 5 6
* mutated: 1 5 4 3 2 6

A

inversion (2 3 4 5 has been inverted to 5 4 3 2)

23
Q

DOes the prostate release hormones?

A

YES

24
Q

What unit of measurement should be used for an insect that needs to be viewed under a microscope?

A

micrometers bc need to be viewed under a MICROscope

25
Q

What unit of measurement should be used for an insect that needs to be viewed under a microscope?

A

micrometers bc need to be viewed under a MICROscope

26
Q

Plasmas are high temperature collections of ions and free electrons . T or F?

A

T.

27
Q

What type of feedback is used to maintain homeostasis?

A

negative

28
Q

Enzymes are what specific?

A

substrate (remember lock and key)

29
Q

Which of the following is NOT a characteristic of enzymes?
* they change shape when they bind their substrate
* they can catalyze reactions in both forward and reverse directions
* their activity is sensitive to change sin temperature
* they are always active on more than one kind of substrate

A

D
* enzymes are substrate specific

30
Q

Identify the location where neurostranmitters are stored immediately prior to use. look at image screenshotted of neuro junction on mac (q 46)

A

B
* in synaptic vesicle

31
Q

Which heart chamber is the largest?

A

left ventricle

32
Q

Action potentials are only present at what part of the neuron?

A

axon

33
Q

Every child in a certain family has been diagnosed with autism spectrum disorder. Based on this evidence, what possible conclusion can be drawn about ASD?

A

ASD may be genetic

34
Q

Correlation can or cannot show cause and effect?

A

CANNOT (correlation DOES NOT mean causation)

Science Mass Practice Questions (3 decks)

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