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DAT Biology PT #3 FC
Practice Test 3
9
Biology
Post-Graduate
12/26/2022

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Cards

Term

Which of the following can be found in viruses, bacteria and animals?

 

a. capsids

b.spike proteins

c.nucleic acids

Definition
Nucleic Acids
Term

Rank the following from smallest component to largest?

 

1. Nucleus

2. Gene

3. Cytosine

4. Chromosome

Definition

Cytosine

Gene

Chromosome

Nucleus 

Term

In what phase of the cell cycle is DNA duplicated?

 

A. G0

B. G1

C. S

D. Metaphase

Definition
S Phase
Term
When an action potential propagates down the t-tubule, the voltage-sensitive proteins are activated which triggers the release of ____________
Definition
Calcium ions from the sarcoplasmic reticulum
Term

During depolarization, ____(Na+/ K+) channels are opened and ____(Na+/ K+) channels are closed 

 

During repolarization, ____(Na+/ K+) channels are opened and ____(Na+/ K+) channels are closed 

 

Definition

Depolarization: Na+ channels are opened, K+ are closed

 

Repolarization: K+ channels are opened, Na+ are closed

Term
Which hormone is released into the blood in order to increase the permeability of water into the ducts of the kidney?
Definition

Antidiuretic hormone (ADH)

 

functions to increase the number of aquaporins on tubule membranes

Term
The luteal phase of the ovarian cycle begins with?
Definition

 

The formation of the corpus luteum in the ovary

Term

What types of proteins can pass freely through the membrane and which ones cannot.

 

What are some examples of each?

Definition

Steroid hormones can pass freely

ie. testosterone,aldosterone cortisol

 

 

Peptide hormones can not pass freely

ie. Insulin

Term
What is horizontal gene transfer?
Definition

 

 The transfer of genetic material from one individual to another, regardless of whether the two organisms are related to one another or not

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