Science 9 Recall

Science 9 Recall

9th - 10th Grade

15 Qs

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Science 9 Recall

Science 9 Recall

Assessment

Quiz

Science

9th - 10th Grade

Hard

Created by

Raphael Amparo

Used 48+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

These are the products of photosynthesis in the light reaction phase, EXCEPT:

oxygen

ATP

NADPH

none of the preceding

Answer explanation

In the light reaction phase of photosynthesis, oxygen, ATP, and NADPH are all produced. Therefore, the correct answer is 'none of the preceding' as all listed products are indeed products of this phase.

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

This results from the transfer of electrons to another atom or loss of electrons.

molecular bond

covalent bond

ionic bond

metallic bond

Answer explanation

The transfer of electrons to another atom or the loss of electrons defines an ionic bond. In ionic bonds, one atom donates electrons while another accepts them, resulting in charged ions that attract each other.

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

It is the currently accepted model of the atom.

Planetary Model

Quantum Mechanical Model

Nuclear Model

Plum Pudding Model

Answer explanation

The Quantum Mechanical Model is the currently accepted model of the atom, describing electrons in terms of probabilities rather than fixed orbits, unlike earlier models such as the Planetary or Plum Pudding models.

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Give the name of the molecular compound:

N2Cl4

dinitrogen tetrachloride

nitrogen tetrachloride

nitrogen chloride

dinitrogen chloride

Answer explanation

The compound N2Cl4 consists of 2 nitrogen (N) atoms and 4 chlorine (Cl) atoms. The prefix 'di-' indicates two, and 'tetra-' indicates four, leading to the name dinitrogen tetrachloride.

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Name the oxyacid:

H2CO3

carbonous acid

percarbonic acid

carbonic acid

bicarbonic acid

Answer explanation

The formula H2CO3 corresponds to carbonic acid, which is an oxyacid formed from carbon dioxide and water. The other options do not match this chemical formula.

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

The following transport processes do not require energy for the transport of materials, EXCEPT:

facilitated diffusion

diffusion

endocytosis / exocytosis

osmosis

Answer explanation

Endocytosis and exocytosis are active transport processes that require energy to move materials into and out of the cell, unlike facilitated diffusion, diffusion, and osmosis, which are passive and do not require energy.

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

This is the blood vessel where the oxygenated blood flows back to the heart.

pulmonary artery

aorta

pulmonary vein

vena cava

Answer explanation

The pulmonary vein is the blood vessel that carries oxygenated blood from the lungs back to the heart, making it the correct answer. In contrast, the pulmonary artery carries deoxygenated blood away from the heart.

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