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3 years ago

I need the function of all of these cell organelles:

1 answer:

6 0

Nucleus - regulates all cell activity, and also holds the DNA

Smooth endoplasmic reticulum - lipid and carbohydrate synthesis.

Rough er - produces and modifies proteins
Located next to the nucleus

Golgi apparatus - modify, sort, and package macromolecules for cell secretion 

Ribosome - assembles the twenty specific amino acid molecules to form the particular protein molecule

Mitochondria - converts energy into compounds that are easier for the cell to use

Chloroplast - captures the energy from sunlight and converts it into food that contains chemical energy in a process called photosynthesis

Lysosomes - breaks down, recycles macromolecules (lipids, carbohydrates, and proteins)

Perioxisome - where hydrogen peroxide and other harmful molecules are broken down by enzymes

Plasma membrane - controls the kinds and amounts of substances moving into and out of the cell; helps maintain cytoplasmic volume and composition

Cytoskeleton - structurally supports, impacts shape and moves cell and its componants

Centrioles - two perpendicular cylinders that form mitotic spindle fibers and microtubules for cilia and flagella, helps organize cell division

Cytoplasm - holds all organelles in place

Vacuole - stores water, salts, protein, and carbohydrates

Vesicles - contains substances that recently entered the cell. Stores and transports newly synthesized molecules.

Cell wall - supports and protects the cell, rigid barrier

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Is rice pudding a homogeneous or heterogeneous mixture?

wel

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3 years ago

Bile from the liver and digestive juices from the pancreas enter which section of the small intestine?

Rina8888 [55]

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4 years ago

Low-density lipoproteins (ldl) are the principal transport vehicle for _____ in the blood.

aleksley [76]

Low-density lipoproteins (LDL) are the principal transport vehicle for cholesterol in the blood.

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Cholesterol is primarily brought on by consuming fatty foods, failing to exercise regularly, being overweight, smoking, and using alcohol. Moreover, it can run in families. By consuming a healthy diet and increasing your physical activity, you can lower your cholesterol. Some folks also require medication. The majority of the cholesterol in your body is LDL (low-density lipoprotein), also referred to as "bad" cholesterol. Your risk of heart disease and stroke increases if your LDL cholesterol levels are high.

To know more about low-density lipoprotein refer to: brainly.com/question/9041034

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1 year ago

When a living organism dies, it stops taking in new carbon. Thus, as the radioactive carbon-14 decays, the ratio of carbon-12 to

Alexxandr [17]

Answer: The fossil is 11459 years old.

Explanation:

Half-life of carbon-14 = 5700 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{5700\text{years}}$

$k=1.21\times 10^{-4}\text{years}^{-1}$

Now we have to calculate the age of the sample:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{years}^{-1}
t = age of sample = ?
a = let initial amount of the reactant = 100 g
x = amount decayed = 75 g
a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get
[tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}$

$t=11459years$

The fossil is 11459 years old.

4 0

3 years ago

Cardiovascular effects of the sympathetic division include all of the following EXCEPT ________. a. weak dilation of the blood v

dalvyx [7]

Answer:

d. dilation of the blood vessels serving the skin and digestive viscera.

Explanation:

Cardiovascular effects of the sympathetic division include all of the following EXCEPT dilation of the blood vessels serving the skin and digestive viscera.

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3 years ago