All categories

3 years ago

Match the following items:

Biology

2 answers:

Black_prince [1.1K]3 years ago

4 0

Cytoplasm; 4
Nucleus; 2
Plasma Membrane; 1
Organism; 5
Vacuole; 3
Nucleolus; 7
Cell Wall; 6

Roman55 [17]3 years ago

3 0

Answer:

1. semipermeable; allows certain substances to pass through

Answer: plasma membrane

Substance like ion have to be regulated closely. Plasma membrane will regulate the concentration of some molecule by making them unable to pass it. Other molecule will be able to pass it freely, like water in osmosis.

2. controls activities of the cell

Answer: nucleus

Nucleus is the most vital organele of the cell that will regulate the cell activities. It contain the genetic material of the cell(DNA/RNA) that needed for protein synthesis. The protein itself will be used to create a new organelle or repair a damaged structure.

3. storage structure

Answer: Vacuole

Vacuole is a membrane bound organelle that used to contain and transport substance. Vacuole could contain a hazardous material so it wont damage the cells, then moving it to the plasma membrane for disposal. It could also store different substance for use like calcium or neurotransmitter.

4. thick fluid between plasma membrane and nucleus

Answer: cytoplasm

Cytoplasm is a gel-like substance that make most of the cell. It is made most of water, so the volume will be influenced by the water content of the cell. Cytoplasm has a role in cell signalling by allowing the movement of certain molecule.

5. functional plant or animal

Answer: organism

An organism is a living individual entity. It could be animal, plants, fungi or even bacteria(microorganism). It could be made of a single cell or multicellular. A living organism will constantly be doing metabolism and need food to sustain their life. By this definition, a virus is not a living organism because they can't do metabolize by their self.

6. fibrous material giving support to the plant

Answer: cell wall

Plant cell has a rigid and sturdy structure around it plasma membrane called cell wall. Cell wall will protect the outer side of the plant cells from attack. This structure makes the plant cell membrane stronger than the animal cells. The cell wall is made by a combination of carbohydrate and proteins.

7. produces ribosomal nucleic acid (RNA)

Answer: nucleolus

Nucleolus is an organ that located inside the nucleus. The size is about 25% of the nucleus and it shown as a darker circle inside the nucleus. Nucleolus has a role in the earlier phase of RNA synthesis cascade as it was the place of ribosome biogenesis.

Read more on Brainly.com - brainly.com/question/10624288#readmore

Explanation:

You might be interested in

Compared to the inertia of a 1-kilogram mass, the

avanturin [10]

Answer:

D. 4 times as great

Explanation:

The inertia of an object is the resistance offered by the object to change in its motion or position.

Then concept of inertia is obtained from Newton's first law of motion which states that an object which is not subjected to any net external force will remain its position of rest or constant velocity of motion until some net external force acts on it. The object at rest will then start to move whereas the object moving at constant velocity will experience a change in its speed or direction of motion.

This reluctance to change position is greater, the more massive an object is as well as the higher the speed of motion of the object. Thus, inertia is directly proportional to the mass of the object as well to the velocity of an object in motion.

From Newton's first law, inertia can be calculated as the force to be overcome to mobile an object, i.e. Inertia = F = ma

Where m is mass of object, a = acceleration of the object.

Objects on the earth's surface experience a constant acceleration, g.

Thus for a 1 kg mass, Inertia = 1 × g

For a 4 kg mass, inertia = 4 × g

The inertia of a 4 kg mass is four times as great as a 1 kg mass.

8 0

2 years ago

When crude oil is distilled, it is separated into categories. What are those categories characterized by?

goldfiish [28.3K]

Answer:

Differences in their boiling points

Explanation:

When crude oil is distilled and separated into categories, the categories are characterized by the differences in their boiling points.

At different boiling points, each of the fraction will separate out.

Crude oil is made up of different fractions of hydrocarbons.
As the chain length of the hydrocarbon increases, the volatility reduces and boiling point increases.
Components with short carbon lengths rises out from the column first and are cooled and extracted.
The categories are thereby, classified based on differences in their boiling points.

6 0

2 years ago

Cerebrospinal fluid (CSF) is formed by ________ and reabsorbed through arachnoid granulations into ________.

Ede4ka [16]

The correct terms to fill in the blanks are lateral ventricles and venous sinus blood. Cerebrospinal fluid (CSF) is formed by lateral ventricles and reabsorbed through arachnoid granulations into the venous sinus blood. The CSF is a fluid that is clear and colorless found in the spinal cord and in the brain, generally the central nervous system. The CSF functions as a buffer or a shock absorber for the brain. It provides basic mechanical protection for the brain. Also, it helps in the circulation of nutrients and the chemicals that are filtered and aids in the elimination of waste products.

3 0

2 years ago

Why does animal viruses affect only animal but not to the plants?

Vikentia [17]

Viruses belonging to (+) ssRNA Tymoviridae and Tenuivirus are able to infect invertebrates and plants [15]. There are some virus families that have diverse host ranges. The Reoviridae (dsRNA) family includes viruses that infect vertebrates, vertebrates and invertebrates, or plants and invertebrates.

8 0

2 years ago

Which of the following are benefits of cardio exercise? A. Resting blood pressure decreases B. Energy levels increase C. The hea

12345 [234]

D is the correct answer.

8 0

3 years ago