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Biology

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Laury Hermann

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โˆ™ 2021-09-30 20:41:39
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Cards in this guide (20)
Why are aldehydes more reactive towards nucleophiles than ketones

Aldehydes are less sterically hindered than ketones. Also, aldehydes have fewer electron donating groups (EDG's) which can stabilize an electron-poor area. The extra carbon chain that ketones have that aldehydes do not have are the reason for both of these things. The neighboring carbon to the carbonyl carbon is an EDG and the carbon chain causes steric hindrance.

How does an atom become a positive ion

To make an atom into a positive or negative ion, it loses or gains any number of electrons.
Positive ions or cations are formed when atoms lose electrons
Negative ion or anions are formed when atoms gain electrons

How do humans receive energy from food

Food has many complex molecules, such as carbohydrates and fats, that store energy. The human body is able to gain this energy by breaking down the molecules.

Which phrase best describes passive transport

The best description of passive transport is it requires no energy from the cell

Can nitrogen form an ionic bond

nitrogen can form an ionic bond

What kind of energy do plants use to make glucose molecules

Plants use the energy from the sun to make glucose.

Why are some people fat and others are not

One reason people are fat is because they eat and eat and eat and don't exercise. Another reason is because some people have fast working calorie burning systems and some people have slow ones causing them to be fat.

It might be that those people that are not fat have high metabolism you eat as much as you want and not get fat.

Which of the following is an organic molecule

Glucose

CH4 for bio sem 1

Sucrose

Fructose
CH4

{Apex Asnwers} C2H6

What happens when a magnesium atom loses an electron in its outer energy shell

It becomes a positive ion. However, energetically it is more favorable for magnesium to lose two electrons. It still becomes a positively charged cation.

Which of these is an example of a chemical change

Lighting A Match

What molecule is formed when many disaccharide molecules are combined

A Polysaccharide.

Which produces an ionic bond

Creating an electrostatic attraction produces an ionic bond.

Why can the complex sugar cellulose store more energy than sugar glucose

Cellulose has more chemical bonds.

What equation has water as a reactant in the chemical reaction

To simplify:

Na + H20 -> NaOH + H2

You're welcome.

What is the goal of a statement of the purpose

To indicate what is expected to be accomplished in doing an experiment

The molecules that make up food contain energy. how does the human body get energy from the food molecules

by breaking chemical bonds in the molecules

What is the purpose of the proper handling of experimental subjects


To ensure that good and reliable data are collected

What causes an unsaturated fatty acid to have a different shape than saturated fatty acid

unsaturated fatty acids have a double carbon bonds APEX

In the triglyceride molecule shown below what molecule are the fatty acids attached to

Glycerol

What is the meaning of the safety symbol shown below

What is the meaning of the safety symbol shown below?

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