science teas 3

which of the following are examples of homeostatic mechanisms ?

- shivering when the body temperature falls
- secreting insulin to decrease blood sugar concentration
- increasing heart rate when blood pressure is low

homeostasis

the tendency of the body to maintain a steady state

where is the gastrocnemius vein in relation to the frontal vein?

distal

which is not a type of protein

unsaturated

which of the following is true regarding adipocytes

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

What is the role of ribosomes?

make proteins

which of the following is an example of chemical change

Including baking soda in a recipe to make it less sour

which of the following is exchanged between two or more atoms that undergo ionic bonding

valence electrons

which of the following anatomical terms is not part of the knee

lateral malleolus

what is most likely the pH of a solution containing many hydroxide (OH) and few hydrogen ions (H)?

9

what is the typical way a solid would turn into a liquid and then a gas ?

melting then vaporizing

where is the scapula in relation to the olecranon?

superior

how many tissue layers does the uterus have ?

3

which of the following orbitals is the last to fill

6s

which of these body parts does not produce melanin?

nails

which of these does not match the nitrogenous base to the nucleobase ?

purine, thymine

which if the following is a carbohydrate

cellulose

enzymes catalyze biochemical reactions by

lowering the activation energy of the reaction

which is not a major type of carbohydrate

Pentasaccharides

which of the following molecules exhibits ionic bonding ?

NaCl

what is a hypothetical explanation for an occurrence that is based on prior knowledge called ?

hypothesis

how many different types of nucleotides are there in DNA

four

a patient lying flat on their back is in which of the following positions ?

supine

In general, where in the periodic table of elements are the elements with the largest atomic radii

bottom left corner

which of the following are formed when the plasma membrane surrounds a particle outside of the cell

endocytic vesicles

which of the below is the best definition for the term circulation

transport oxygen and other nutrients to tissues via the cardiovascular system

which of the following does not obey the law of independent assortment

Two genes next to each other on a chromosome

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

duodenum

which of the following is not provided as a result of the valid research and observations recorded by scientists ?

The ability to prevent earthquakes and other natural disasters

what type of mutation is represented by the following sequence ?
Original : 1 2 3 4 5 6
Mutated : 1 5 4 3 2 6

inversion

which of the following anatomical structures is directly involved in the production of hormones

pituitary, pancreas

which of the following statements best describes organelles ?

specialized structures within a cell

which of the following statements concerning the states of matter is not true

Liquids have no definite shape and no definite volume.

When animals eat, insulin from the pancreas, stimulating glucose uptake by the liver. When glucose levels drop, the pancreas reduces insulin release. This is an example of which mechanism for maintain homeostasis?

negative feedback

which of the following is not a characteristic of enzymes ?

They are always active on more than one kind of substrate

which of the following heart chambers if the largest ?

left ventricle

which structure of the nervous system carries action potential in the direction of synapse ?

axon

every child in a certain family had been diagnosed with autism spectrum disorder (ASD). Based on this evidence, what possible conclusion can be drawn about ASD

may be genetic

which of the following is not true concerning correlation

Correlation can show cause and effect