BIOLOGY HIGH SCHOOL

The ______________ can be described as a chemical factory.a. liver
c. gallbladder
b. appendix
d. rectum

Answers

Answer 1
Answer: a. Liver
the liver is the chemical factory of your body, as it takes substances and changes them into other substances that your body needs.

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The process of cellular respiration takes place mostly in the _______.

Answers

It takes place in the matrix of the mitochondria, which is the powerhouse of the cell.

Answer:

In the MIGHTY MITOCHANDRIA WHICH IS THE POWERHOUSE OF THE CELL.

A simple test to differentiate between Staphylococcus and Streptococcus is the addition of H2O2 to a colony to see if bubbles form, which are positive for catalase. Which organism would be positive

Answers

Answer:

The Correct answer is B, Staphylococcus.

Explanation:

The Catalase test is used to differentiate Staphylococci (Catalase positive) from Streptococci (Catalyst negative). The enzyme catalase is produced by bacteria that respire using oxygen and protects them from the toxic by-products of oxygen metabolism.

Catalase positive bacteria includes strict aerobes as well as facultative anaerobes. Catalase negative bacteria maybe anarobes or facultative anarobes that only ferment and don't respire using oxygen as terminal electron acceptor.

Catalase converts hydrogen peroxide to water and oxygen gas. Though both Staphylococcus and Streptococcus are gram positive bacteria, only Staphylococcus produces catalase enzymes.

What does the continued presence of vestigial structures like the whale pelvis and femur shown in Figure 16-1 suggest about the impact vestigial structures have on fitness?

Answers

well it might help you want to ecercise more


A kind of sedimentary rock formed from plant material over a long period of time is

Answers

Coal is a sedimentary rock made almost entirely of plant material and other organic deposits that have been buried for millions of years under elevated conditions of heat and pressure. 
The answer is coal, because it is made up of dead plants that are buried, then are chemically 

When conducting experiments what do scientists use to help guide their processes?

Answers

Scientific method maybe?

Characteristics of membrane protein:____________. 1. Membrane proteins transfer genetic information to the cytoplasm.
2. Membrane proteins act as receptors to molecules like hormones.
3. Membrane proteins form junctions between cells.
4. Membrane proteins serve as enzymes.

Answers

Answer: Membrane proteins act as receptors to molecules like hormones.

Explanation:

Membrane proteins are proteins that are closely associated with a cell membrane. On the cell membrane, they could act as receptors to molecules like hormones that need to be transported across the hydrophobic lipid bilayer.

A good example of membrane proteins is sodium channel, that acts as receptor to neurotransmitters.
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